Top-rated plumbing installers for a remodel or addition.

Get matched with top plumbing installers for a remodel or addition in Saint Helena, CA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Plumbing installers for a remodel or addition in Saint Helena

Avatar for Wolff Contracting, Inc.

Wolff Contracting, Inc.

3200 Dutton AVenue, Ste. 117
4.95(
12
)
Approved Pro

Wolff Contracting, Inc.

3200 Dutton AVenue, Ste. 117
4.95(
12
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
14 years of experience

Nothing improves the value of your home more than professional updates. Wolff Contracting, Inc., offers fast, friendly and courteous service. We use only the best products and are always eager to answer your questions and concerns. We have built our reputation on our commitment to providing quality service, which has earned us an impressive reputation with many valuable customers. We take pride in delivering value through top quality, dependable work with excellent price and reliable, honest service.

"Wolff Construction started our small job a few days after we spoke and was done in a-day and a-half later. I'm thrilled."

Steve C on February 2017

Nothing improves the value of your home more than professional updates. Wolff Contracting, Inc., offers fast, friendly and courteous service. We use only the best products and are always eager to answer your questions and concerns. We have built our reputation on our commitment to providing quality service, which has earned us an impressive reputation with many valuable customers. We take pride in delivering value through top quality, dependable work with excellent price and reliable, honest service.

"Wolff Construction started our small job a few days after we spoke and was done in a-day and a-half later. I'm thrilled."

Steve C on February 2017


Avatar for Bowen Plumbing

Bowen Plumbing

520 Pistachio Pl
4.92(
6
)
Approved Pro

Bowen Plumbing

520 Pistachio Pl
4.92(
6
)
Approved Pro
Customers say: Quick response
8 years of experience
Free onsite estimate

With over 20 years of experience as a plumber, Bowen Plumbing is who you need to take care of your home. We handle everything from the initial consultation to making sure your property looks perfect every single time. We will always treat your property as we would treat our own, and you will be surprised how simple and easy our team will make the whole process seem. Give our team a call today. We're looking forward to working with you!

"I hired this company to install a water heater. It was dead so fast very nice job. Iâ ve had no problems with the work that they did. I recommend him highly to anyone because heâ s very nice pleasant does a great job Iâ d higher of 100 times over."

annette g on May 2023

With over 20 years of experience as a plumber, Bowen Plumbing is who you need to take care of your home. We handle everything from the initial consultation to making sure your property looks perfect every single time. We will always treat your property as we would treat our own, and you will be surprised how simple and easy our team will make the whole process seem. Give our team a call today. We're looking forward to working with you!

"I hired this company to install a water heater. It was dead so fast very nice job. Iâ ve had no problems with the work that they did. I recommend him highly to anyone because heâ s very nice pleasant does a great job Iâ d higher of 100 times over."

annette g on May 2023


Pedro Galvan Plumbing, Inc.

5405 Ace Ct
4.85(
17
)
Approved Pro

Pedro Galvan Plumbing, Inc.

5405 Ace Ct
4.85(
17
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
21 years of experience

Pedro Galvan Ramirez Plumbing, Inc., is the premier plumbing contractor in the Richmond Area. We finish every job to the customer's standards. Call today for a free quote!

"We are incredibly grateful to Pedro Galvan and his team for stepping in during a moment of urgent need. When our hot water system suddenly failed, leaving us without hot water for daily essentials, Pedro responded with a level of professionalism, clarity, and compassion that is truly rare. From the very first call, Pedro was attentive, transparent about pricing, and committed to solving the problem quickly. He provided us with the most cost-effective and honest quote out of several we obtained—and, even more importantly, was able to come almost immediately when others could not. His workmanship was precise, efficient, and tidy. It was clear we were in the hands of someone who genuinely takes pride in his craft. In a world where so many service professionals overpromise and underdeliver, Pedro Galvan delivers exactly what he promises—and does so with warmth, integrity, and a deep respect for his clients. We recommend him without hesitation to anyone needing plumbing services."

nicola s on July 2025

Pedro Galvan Ramirez Plumbing, Inc., is the premier plumbing contractor in the Richmond Area. We finish every job to the customer's standards. Call today for a free quote!

"We are incredibly grateful to Pedro Galvan and his team for stepping in during a moment of urgent need. When our hot water system suddenly failed, leaving us without hot water for daily essentials, Pedro responded with a level of professionalism, clarity, and compassion that is truly rare. From the very first call, Pedro was attentive, transparent about pricing, and committed to solving the problem quickly. He provided us with the most cost-effective and honest quote out of several we obtained—and, even more importantly, was able to come almost immediately when others could not. His workmanship was precise, efficient, and tidy. It was clear we were in the hands of someone who genuinely takes pride in his craft. In a world where so many service professionals overpromise and underdeliver, Pedro Galvan delivers exactly what he promises—and does so with warmth, integrity, and a deep respect for his clients. We recommend him without hesitation to anyone needing plumbing services."

nicola s on July 2025


MORENO PLUMBING

8451 UVA DR SPC #33
5.00(
1
)
Approved Pro

MORENO PLUMBING

8451 UVA DR SPC #33
5.00(
1
)
Approved Pro
Free onsite estimate

MORENO PLUMBING is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"I had a leak under my house. It was Saturday so I thought I would have a hard time getting a plumber. I found Moreno Plumbing on Angie’s List. Alex was prompt, professional, and clearly explained what he would do. He took photos before, during and after. He is a polite young man who got the job done! I highly recommend him."

Michel F on August 2025

MORENO PLUMBING is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"I had a leak under my house. It was Saturday so I thought I would have a hard time getting a plumber. I found Moreno Plumbing on Angie’s List. Alex was prompt, professional, and clearly explained what he would do. He took photos before, during and after. He is a polite young man who got the job done! I highly recommend him."

Michel F on August 2025


JOHN BEARD PLUMBING SERVICES

2565 Buss Dr
5.00(
3
)
Approved Pro

JOHN BEARD PLUMBING SERVICES

2565 Buss Dr
5.00(
3
)
Approved Pro
1 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"John did an amazing Job. The work was done fast and done well, also affordable. He really went out of his way to get us our bathroom back as quick as he could. Honestly never been so happy with my bath and shower."

Jonny W on August 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"John did an amazing Job. The work was done fast and done well, also affordable. He really went out of his way to get us our bathroom back as quick as he could. Honestly never been so happy with my bath and shower."

Jonny W on August 2025


Avatar for Bragg Home Services

Bragg Home Services

3345 Industrial Drive
5.00(
6
)
Approved Pro

Bragg Home Services

3345 Industrial Drive
5.00(
6
)
Approved Pro
Customers say: Quick response
531 local quotes requested
57 years of experience

For over 56 years Bragg Home Services has specialized in offering residential and light commercial plumbing, heating, and air conditioning services to the residents of Sonoma, Marin, and Napa Counties. At Bragg Home Services we know that our customers expect integrity, excellence, value, and commitment. That’s why at Bragg Home Services we hire only the best people, and use only the best products, offering exceptional value, backed by our lifetime workmanship guarantee. Because at Bragg Home Services, your satisfaction is our number 1 priority.

"Very well Bragg rep was friendly and personable. I called at 9.30pm on a hot day. AC was fixed by 10.00am next morning. I was very pleased."

Doug N on September 2025

For over 56 years Bragg Home Services has specialized in offering residential and light commercial plumbing, heating, and air conditioning services to the residents of Sonoma, Marin, and Napa Counties. At Bragg Home Services we know that our customers expect integrity, excellence, value, and commitment. That’s why at Bragg Home Services we hire only the best people, and use only the best products, offering exceptional value, backed by our lifetime workmanship guarantee. Because at Bragg Home Services, your satisfaction is our number 1 priority.

"Very well Bragg rep was friendly and personable. I called at 9.30pm on a hot day. AC was fixed by 10.00am next morning. I was very pleased."

Doug N on September 2025


Avatar for Moore Home Services

Moore Home Services

3321 Industrial Drive
4.71(
389
)
Approved Pro

Moore Home Services

3321 Industrial Drive
4.71(
389
)
Approved Pro
Customers say: Super punctual
654 local quotes requested
16 years of experience

At Moore Home Services, your comfort is our promise. Since 2009, we’ve grown into a trusted HVAC leader across Northern California with 50+ trucks and 100+ highly trained team members. We believe in 100% honesty—if a simple repair is best, that’s exactly what you’ll get. Our HVAC services come with a 1-Year Trial Guarantee: if you’re not completely satisfied, we’ll refund every penny. From furnace repairs to A/C installs, our friendly, expert techs are here to help—because your happiness is our only goal.

"Orion C. Arrived on time with a friendly smile to perform my annual Fall checkup. He provided outstanding service - professional, knowledgeable, and always courteous throughout! My system runs perfectly and I would highly recommend their excellent service as represented by Orion! They are clearly committed to customer satisfaction."

Steve B on September 2025

At Moore Home Services, your comfort is our promise. Since 2009, we’ve grown into a trusted HVAC leader across Northern California with 50+ trucks and 100+ highly trained team members. We believe in 100% honesty—if a simple repair is best, that’s exactly what you’ll get. Our HVAC services come with a 1-Year Trial Guarantee: if you’re not completely satisfied, we’ll refund every penny. From furnace repairs to A/C installs, our friendly, expert techs are here to help—because your happiness is our only goal.

"Orion C. Arrived on time with a friendly smile to perform my annual Fall checkup. He provided outstanding service - professional, knowledgeable, and always courteous throughout! My system runs perfectly and I would highly recommend their excellent service as represented by Orion! They are clearly committed to customer satisfaction."

Steve B on September 2025


Avatar for America's Dream HomeWorks

America's Dream HomeWorks

7115 Watt Ave
4.09(
172
)
Approved Pro

America's Dream HomeWorks

7115 Watt Ave
4.09(
172
)
Approved Pro
Customers say: Quality work
3327 local quotes requested
24 years of experience

America's Dream HomeWorks Is A Family-Owned Full Service Home Improvement Contractor In California Offering Complete Home Remodeling Services. We Help Homeowners And Property Owners With All Of Their Home Improvement Needs. With The Professional Knowledge And Vast Resources, We Are Able To Provide Our Customers With The Best Products, Unmatched Customer Service And Affordable Prices. Secondary Phone: Secondary 916.739.0996

"If what you are looking for is the best possible upgrade project imaginable in your home, America’s Dream Homeworks is the company you want to hire … period. My wife and I shopped around a few different remodel companies for our master bathroom job. There were several things that set America’s Dream Homeworks (hereafter “ADH”) apart from the competition. First, the quality of the materials. Upon entering their huge showroom floor, you notice that they order and work with huge slabs of rock. We were looking to have our shower walls be made of single large slabs of stone, rather than tile or other patchwork linked together by grout. Grout is the first part of one’s shower to gather mildew, so having a single rock panel for the wall has a marked impact on reducing mildew problems. In addition, the other materials that they work with were all five-star quality as well. After leaving the showroom, we were sold. The only thing that could have made us choose another company at that point would have been poor customer service. However, the service team also left us very impressed. Osa, our in-home design consultant, was incredibly friendly, very informed about all of ADH’s product offerings, and had a very good knack for hearing my wife’s style preferences and finding great solutions for our bathrooms. She took her time taking measurements, and looking through product offerings to find solutions that would work well for our space. Osa presented us with a few different options for materials, at various quality/price tiers, so that we got a very good idea of what our finished job would look like at various price points. My wife of course chose some of the most high-end materials for our job, but it was within the scope of our budget. The entire in-home design consultation was handled thoroughly, methodically, and the end result was a design we knew we were going to love. Great work, Osa! Now we waited. Julie was assigned to be in communication with us during the waiting period and she was diligent about keeping us up to date. ADH had current projects ongoing and needed to make sure those were properly wrapped up. In addition, our materials had to be ordered and some of them had long lead times. Contract was signed in late October 2018. All materials were not received until mid-February 2019. For projects such as this, delays are a reality that must be both expected and worked around, so we were ready to wait. Julie also did a very good job keeping us informed during the waiting period, so we were never left in the dark and always knew what was happening. Mid-February arrived and our installation team was ready to go. Alex, Eric, and Ivan were our main go-to guys for the work. They demoed the bathroom. Upon opening up the walls, one often finds unexpected surprises, and we had a couple, but nothing serious. Within the first week, all of the principle demo work was done and they were ready to start installing. They did the ground work for the install of the various parts of the project, including taking extremely detailed measurements for the stone work. Throughout the entire process, the guys were very sensitive to our needs (we have a two-year-old son, so they were particularly sensitive to his nap and bed times) and they worked super long hours to make sure we stayed on schedule. Demo, patching up, and prep work took about a week and a half to complete. The special stone team came in led by another Alex (different from the Alex taking primary project lead) during week #2, and they were miraculously in and out in a single day. There was one panel in the master bathroom that they could not install on that day because we ordered a jacuzzi tub, so they needed the space open to access the wiring for the motor installation. Overall, though, we couldn’t believe that they did the stone work so incredibly fast. Also, the resulting fit and finish is super professional. It is extremely difficult to tell where two rock panels are cut and bonded together because of the seamless way they sealed the pieces up. Also, they did an amazing job matching the rock patterns from panel to panel, such that even where two separate panels are adjoining, the patterns flow from one to the other almost seamlessly. It was a fantastic install job! Week #3 rolled around and the team did some more basic patching work, including hooking up the sink hardware and installing our new toilets. However, this was a quiet work week as they scheduled some other install projects and gave some time for the rock sealing to set-up properly. Week #4 they knocked out the countertop, new sink hardware, and backsplash in our guest bathroom. Two-day turnaround for that. Then, they moved back into the master bath, installed the tub, put the final rock panel in place (complete with stone access door for the tub motor), and grouted the shower floor. Only the glass and some final patch-work remained to be done. There were a couple of additional delays for the glass delivery, which took two weeks, but again we knew that delays like this are commonplace for a project like this, so we took it in stride. Also, we were able to start using our jacuzzi tub and shower even though the glass wasn’t in yet, so we could start enjoying our new space while we waited … and enjoy it we did! Once delivered, the glass was installed in just two hours, and as of this morning all of the finishing touches were put in by Ivan, we passed city inspection, and happily shook hands with the team congratulating them on a job well done. Our finished bathrooms are … well … the company is called America’s Dream Homeworks for a reason … our finished project is like a dream come true. My wife and I now have our own personal luxury spa in our own home, complete with jacuzzi tub, overhead rain shower (with detachable spray handle that we can hold and modulate water pressure to while still getting rain shower from above), gorgeous rock walls with beautiful clear tempered glass enclosing the shower, and brand new countertops with deep sinks. We only did half of our guest bathroom. When we finish that project (need to remodel the shower space as only the counter tops were done in there) we will be calling ADH back. Overall 5-star work. 5-stars on the finished job. 5-stars on the customer service at all levels. 5-stars on the quality of the materials. 5-stars on the communication before and during the job. 5-stars on the professionalism and friendliness of our install teams. I can’t use enough superlatives for this company, for its people, and for the top tier quality of their workmanship. I say again here to close what I said at the beginning … if what you are looking for is the best possible upgrade project imaginable in your home, America’s Dream Homeworks is the company you want to hire. We could not be happier with the result. We will be calling them again in the future."

Daniel C on March 2019

America's Dream HomeWorks Is A Family-Owned Full Service Home Improvement Contractor In California Offering Complete Home Remodeling Services. We Help Homeowners And Property Owners With All Of Their Home Improvement Needs. With The Professional Knowledge And Vast Resources, We Are Able To Provide Our Customers With The Best Products, Unmatched Customer Service And Affordable Prices. Secondary Phone: Secondary 916.739.0996

"If what you are looking for is the best possible upgrade project imaginable in your home, America’s Dream Homeworks is the company you want to hire … period. My wife and I shopped around a few different remodel companies for our master bathroom job. There were several things that set America’s Dream Homeworks (hereafter “ADH”) apart from the competition. First, the quality of the materials. Upon entering their huge showroom floor, you notice that they order and work with huge slabs of rock. We were looking to have our shower walls be made of single large slabs of stone, rather than tile or other patchwork linked together by grout. Grout is the first part of one’s shower to gather mildew, so having a single rock panel for the wall has a marked impact on reducing mildew problems. In addition, the other materials that they work with were all five-star quality as well. After leaving the showroom, we were sold. The only thing that could have made us choose another company at that point would have been poor customer service. However, the service team also left us very impressed. Osa, our in-home design consultant, was incredibly friendly, very informed about all of ADH’s product offerings, and had a very good knack for hearing my wife’s style preferences and finding great solutions for our bathrooms. She took her time taking measurements, and looking through product offerings to find solutions that would work well for our space. Osa presented us with a few different options for materials, at various quality/price tiers, so that we got a very good idea of what our finished job would look like at various price points. My wife of course chose some of the most high-end materials for our job, but it was within the scope of our budget. The entire in-home design consultation was handled thoroughly, methodically, and the end result was a design we knew we were going to love. Great work, Osa! Now we waited. Julie was assigned to be in communication with us during the waiting period and she was diligent about keeping us up to date. ADH had current projects ongoing and needed to make sure those were properly wrapped up. In addition, our materials had to be ordered and some of them had long lead times. Contract was signed in late October 2018. All materials were not received until mid-February 2019. For projects such as this, delays are a reality that must be both expected and worked around, so we were ready to wait. Julie also did a very good job keeping us informed during the waiting period, so we were never left in the dark and always knew what was happening. Mid-February arrived and our installation team was ready to go. Alex, Eric, and Ivan were our main go-to guys for the work. They demoed the bathroom. Upon opening up the walls, one often finds unexpected surprises, and we had a couple, but nothing serious. Within the first week, all of the principle demo work was done and they were ready to start installing. They did the ground work for the install of the various parts of the project, including taking extremely detailed measurements for the stone work. Throughout the entire process, the guys were very sensitive to our needs (we have a two-year-old son, so they were particularly sensitive to his nap and bed times) and they worked super long hours to make sure we stayed on schedule. Demo, patching up, and prep work took about a week and a half to complete. The special stone team came in led by another Alex (different from the Alex taking primary project lead) during week #2, and they were miraculously in and out in a single day. There was one panel in the master bathroom that they could not install on that day because we ordered a jacuzzi tub, so they needed the space open to access the wiring for the motor installation. Overall, though, we couldn’t believe that they did the stone work so incredibly fast. Also, the resulting fit and finish is super professional. It is extremely difficult to tell where two rock panels are cut and bonded together because of the seamless way they sealed the pieces up. Also, they did an amazing job matching the rock patterns from panel to panel, such that even where two separate panels are adjoining, the patterns flow from one to the other almost seamlessly. It was a fantastic install job! Week #3 rolled around and the team did some more basic patching work, including hooking up the sink hardware and installing our new toilets. However, this was a quiet work week as they scheduled some other install projects and gave some time for the rock sealing to set-up properly. Week #4 they knocked out the countertop, new sink hardware, and backsplash in our guest bathroom. Two-day turnaround for that. Then, they moved back into the master bath, installed the tub, put the final rock panel in place (complete with stone access door for the tub motor), and grouted the shower floor. Only the glass and some final patch-work remained to be done. There were a couple of additional delays for the glass delivery, which took two weeks, but again we knew that delays like this are commonplace for a project like this, so we took it in stride. Also, we were able to start using our jacuzzi tub and shower even though the glass wasn’t in yet, so we could start enjoying our new space while we waited … and enjoy it we did! Once delivered, the glass was installed in just two hours, and as of this morning all of the finishing touches were put in by Ivan, we passed city inspection, and happily shook hands with the team congratulating them on a job well done. Our finished bathrooms are … well … the company is called America’s Dream Homeworks for a reason … our finished project is like a dream come true. My wife and I now have our own personal luxury spa in our own home, complete with jacuzzi tub, overhead rain shower (with detachable spray handle that we can hold and modulate water pressure to while still getting rain shower from above), gorgeous rock walls with beautiful clear tempered glass enclosing the shower, and brand new countertops with deep sinks. We only did half of our guest bathroom. When we finish that project (need to remodel the shower space as only the counter tops were done in there) we will be calling ADH back. Overall 5-star work. 5-stars on the finished job. 5-stars on the customer service at all levels. 5-stars on the quality of the materials. 5-stars on the communication before and during the job. 5-stars on the professionalism and friendliness of our install teams. I can’t use enough superlatives for this company, for its people, and for the top tier quality of their workmanship. I say again here to close what I said at the beginning … if what you are looking for is the best possible upgrade project imaginable in your home, America’s Dream Homeworks is the company you want to hire. We could not be happier with the result. We will be calling them again in the future."

Daniel C on March 2019


Avatar for Same Day Plumbing, Heating, Cooling

Same Day Plumbing, Heating, Cooling

600 American Way
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Same Day Plumbing, Heating, Cooling

600 American Way
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
1090 local quotes requested
2 years of experience

Family-owned Same Day Heating, Cooling, Plumbing operates out of Windsor, just north of Santa Rosa. We offer fast, reliable AC repair and installation services, heater repair & installation, and plumbing services, in the North Bay area of California. Our promise to you is always that if we do not fix your system the SAME DAY we arrive… you DON’T pay the service fee. Our home service experts are licensed and insured with more than 100 years of leadership experience. Additionally, we back all of our installation and replacement services with a 24-month, 100% satisfaction guarantee.

Family-owned Same Day Heating, Cooling, Plumbing operates out of Windsor, just north of Santa Rosa. We offer fast, reliable AC repair and installation services, heater repair & installation, and plumbing services, in the North Bay area of California. Our promise to you is always that if we do not fix your system the SAME DAY we arrive… you DON’T pay the service fee. Our home service experts are licensed and insured with more than 100 years of leadership experience. Additionally, we back all of our installation and replacement services with a 24-month, 100% satisfaction guarantee.


Avatar for AG Handyman Service

AG Handyman Service

330 Royal Oaks Drive
5.00(
4
)
Approved Pro

AG Handyman Service

330 Royal Oaks Drive
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
907 local quotes requested

We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"He responded quickly, gave quote he stuck to, set up time for work and kept me informed about arrival. Was clean and neat in appearance. Did work professionally."

Carol W on June 2024

We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"He responded quickly, gave quote he stuck to, set up time for work and kept me informed about arrival. Was clean and neat in appearance. Did work professionally."

Carol W on June 2024

...
Showing 1-10 of 300
FAQs for plumbing installation for a remodel or addition projects in Saint Helena, CA

Adding bathroom plumbing to a detached garage starts with the basic line installation cost of $900 to $1,300. On top of this base expense, you'll need to budget for each fixture. A toilet costs  $250 to $550, sinks cost $150 to $800, and a shower or bathtub costs $400 to $1,900. The project will also require ventilation, moisture-resistant materials, and possibly electrical work. Remember that these costs reflect only the plumbing aspects—additional construction, finishing, and permitting expenses will apply to complete a functional bathroom space.

While certain aspects of garage renovation might be suitable for DIY enthusiasts, plumbing installation requires professional expertise. Connecting to water and sewer systems demands specialized knowledge and equipment, and improper installation can result in severe water damage, code violations, and potential health hazards. Most municipalities require permits for plumbing modifications, and these often stipulate that licensed professionals must perform work. Consider limiting your involvement to simpler tasks like painting or basic finishing work.

The timeframe for adding plumbing to a detached garage spans one to three days for the actual plumbing work. However, this represents only the active installation period. The complete project timeline must account for planning, obtaining permits (which can take weeks depending on your locality), coordinating multiple contractors if needed, and addressing any unexpected challenges that arise during installation. Weather conditions can also impact excavation and outdoor connection work.

Adding plumbing to a detached garage will likely increase your property taxes. Tax assessors consider plumbing an improvement that enhances property value and functionality. The specific tax impact varies by location and project scope. Converting a garage into living space with plumbing facilities can trigger significant reassessment in many jurisdictions. Before proceeding with your project, consult your local tax assessor's office to understand the potential tax implications and factor this ongoing expense into your decision-making process.

The Saint Helena, CA homeowners’ guide to plumbing installations for a remodel or addition

From average costs to expert advice, get all the answers you need to get your job done.