Q: How much does it cost to add a bathroom to a detached garage?

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.

Q: Can I add plumbing to my detached garage myself?

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.

Q: How long does it take to add plumbing to a detached garage?

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.

Q: Will adding plumbing to my detached garage increase my property taxes?

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.

Just In Case Plumbing & Heating LLC

Just In Case Plumbing & Heating LLC

Customers say: Quick response

4 years of experience

Warranties offered

Looking for top-notch service? Look no further than Just In Case Plumbing & Heating LLC. Contact us today for all your plumbing needs!

"Alec, thank you!!!!! These guys are the best. They come pretty quick, and are so professional. They laid covers down before coming into kitchen. Replaced my faucet in less than an hr. This is the second time I’ve used this company, and won’t use anyone else. Thank you again!!!! "

Kristine M on January 2026

Looking for top-notch service? Look no further than Just In Case Plumbing & Heating LLC. Contact us today for all your plumbing needs!

"Alec, thank you!!!!! These guys are the best. They come pretty quick, and are so professional. They laid covers down before coming into kitchen. Replaced my faucet in less than an hr. This is the second time I’ve used this company, and won’t use anyone else. Thank you again!!!! "

Kristine M on January 2026

Ryan & Company

Ryan & Company

Customers say: Super punctual

21 local quotes requested

77 years of experience

We are a Family owned & operated business. Ryan & Co.,Inc. is a full service Plumbing, Heating and Cooling repair and installation company established in 1949 with a genuine commitment to professional, affordable & personalized service.

"Great job guys. Lovely working with them"

Robert H on July 2024

We are a Family owned & operated business. Ryan & Co.,Inc. is a full service Plumbing, Heating and Cooling repair and installation company established in 1949 with a genuine commitment to professional, affordable & personalized service.

"Great job guys. Lovely working with them"

Robert H on July 2024

Garon T Plumbing

Garon T Plumbing

Customers say: Super punctual

Recommended by 92% of Angi customers

15 local quotes requested

Our expert technicians at Garon T Plumbing, Heating, A/C & Electrical deliver unmatched professional services to homes and businesses throughout Brick Township, Howell, Point Pleasant, Freehold, and surrounding areas. We have over 28 years of industry experience and pair this expertise with the most advanced products and methods available to ensure high-quality and lasting results. We are so confident in our solutions that we back up our services with a 100% satisfaction guarantee. Our team customizes every solution to your specific needs and always works quickly and cleanly. We will be by your side when you need us most, proudly offering same-day appointments. We offer $25 discount for all military vets and senior citizens. Contact our team today!

"Booking the appointment was fine the problem began after my new dishwasher was installed. The kickplate was mistakenly thrown away by the plumber. It wasn’t detected until another plumber from Garon T came to finish connecting the sink and insta-hot. He apologized and assured me that they would resolve the problem immediately. That never happened, I called repeat talking and leaving messages to Pamela. Who would apologize but never resolve the problem. Two weeks later, asked what is taking so long and to speak to someone further up the food chain. Spoke to a supervisor who explained this was the first she was hearing about it. Another week and a series of phone calls which ended in insincere apologies. At that point, I had enough contacted the manufacturer myself and received the kickplate in a few days. Then I received this text from Pam. “Hello,This is Pamela with Garon T Plumbing, Heating & AC. Hope y’all are doing great today. Just wanted to touch base to advise that I don’t yet have the arrival date for the kickplate. I apologize for the delay and will let you know as soon as I know. Thank you - have a great weekend!” I replied we already have the kick plate and after three weeks of terrible customer service the issue was resolved. It’s a shame they have such appalling, customer service. We had plan to use them for additional work, however, with customer service unable to resolve a simple problem I’m not sure if I trust them moving forward. Since posting this I have not received any response from Garon T not even an offer to finally install the kickplate."

s r on July 2024

Our expert technicians at Garon T Plumbing, Heating, A/C & Electrical deliver unmatched professional services to homes and businesses throughout Brick Township, Howell, Point Pleasant, Freehold, and surrounding areas. We have over 28 years of industry experience and pair this expertise with the most advanced products and methods available to ensure high-quality and lasting results. We are so confident in our solutions that we back up our services with a 100% satisfaction guarantee. Our team customizes every solution to your specific needs and always works quickly and cleanly. We will be by your side when you need us most, proudly offering same-day appointments. We offer $25 discount for all military vets and senior citizens. Contact our team today!

"Booking the appointment was fine the problem began after my new dishwasher was installed. The kickplate was mistakenly thrown away by the plumber. It wasn’t detected until another plumber from Garon T came to finish connecting the sink and insta-hot. He apologized and assured me that they would resolve the problem immediately. That never happened, I called repeat talking and leaving messages to Pamela. Who would apologize but never resolve the problem. Two weeks later, asked what is taking so long and to speak to someone further up the food chain. Spoke to a supervisor who explained this was the first she was hearing about it. Another week and a series of phone calls which ended in insincere apologies. At that point, I had enough contacted the manufacturer myself and received the kickplate in a few days. Then I received this text from Pam. “Hello,This is Pamela with Garon T Plumbing, Heating & AC. Hope y’all are doing great today. Just wanted to touch base to advise that I don’t yet have the arrival date for the kickplate. I apologize for the delay and will let you know as soon as I know. Thank you - have a great weekend!” I replied we already have the kick plate and after three weeks of terrible customer service the issue was resolved. It’s a shame they have such appalling, customer service. We had plan to use them for additional work, however, with customer service unable to resolve a simple problem I’m not sure if I trust them moving forward. Since posting this I have not received any response from Garon T not even an offer to finally install the kickplate."

s r on July 2024

Advanced Professional Management, LLC

Advanced Professional Management, LLC

Customers say: Quality work

69 local quotes requested

27 years of experience

Efficient and Honest, Advanced Professional’s has become a reputable and well-known service provider. We are fully licensed and insured so our team is up for every job, whether it is high-quality heating, plumbing, air conditioning, or managing general contractor projects (residential, commercial and industrial) we provide the skills and experience our clients have come to expect available 24/7. We want our customers to be satisfied with our work. When it comes to the job we don’t see our clients as just people we service, we treat them like family.

"Excellent job??????. Excellent customer service and very courteous. Left work area very clean and tidy."

Shirley D on December 2023

Efficient and Honest, Advanced Professional’s has become a reputable and well-known service provider. We are fully licensed and insured so our team is up for every job, whether it is high-quality heating, plumbing, air conditioning, or managing general contractor projects (residential, commercial and industrial) we provide the skills and experience our clients have come to expect available 24/7. We want our customers to be satisfied with our work. When it comes to the job we don’t see our clients as just people we service, we treat them like family.

"Excellent job??????. Excellent customer service and very courteous. Left work area very clean and tidy."

Shirley D on December 2023

Proficient Plumbing & Heating

Proficient Plumbing & Heating

Customers say: True professional

Recommended by 98% of Angi customers

12 local quotes requested

Serving Ocean County and Monmouth county. Proficient Plumbing and Heating has established itself as the premiere company in the service industry. Founded by CEO, Paul Wylam, this family run business has made customer service its first priority by exceeding expectations with fast and reliable service, free estimates and 24 hour emergency 7 days a week. We employ only experienced technicians and train our apprentices and are so confident that you will be pleased with our services, that we 100% guarantee our work. We understand with the difficult times that face today’s economy it’s important to feel confident that you are getting the best results for your money, we therefore offer the most competitive prices up front, so our clients know the prices before the job starts, not after!

"On time, completed work efficiently."

Julianne L on December 2024

Serving Ocean County and Monmouth county. Proficient Plumbing and Heating has established itself as the premiere company in the service industry. Founded by CEO, Paul Wylam, this family run business has made customer service its first priority by exceeding expectations with fast and reliable service, free estimates and 24 hour emergency 7 days a week. We employ only experienced technicians and train our apprentices and are so confident that you will be pleased with our services, that we 100% guarantee our work. We understand with the difficult times that face today’s economy it’s important to feel confident that you are getting the best results for your money, we therefore offer the most competitive prices up front, so our clients know the prices before the job starts, not after!

"On time, completed work efficiently."

Julianne L on December 2024

Arctic Air Conditioning

Arctic Air Conditioning

Customers say: Quality work

Recommended by 95% of Angi customers

245 local quotes requested

Arctic Air Conditioning is a family run business that has served New Jersey since 1977. We specialize in residential and commercial Air Conditioning, Heating, Humidification, and indoor air quality. Our other services include Plumbing, Electrical, and Garage Doors. Our philosophy is to provide top of the line equipment with the best installation and service available in the industry. We are an award winning Lennox Dealer and Home Depot Service Provider.

"Prompt & excellent service- no complaints"

Lorenzo S on November 2025

Arctic Air Conditioning is a family run business that has served New Jersey since 1977. We specialize in residential and commercial Air Conditioning, Heating, Humidification, and indoor air quality. Our other services include Plumbing, Electrical, and Garage Doors. Our philosophy is to provide top of the line equipment with the best installation and service available in the industry. We are an award winning Lennox Dealer and Home Depot Service Provider.

"Prompt & excellent service- no complaints"

Lorenzo S on November 2025

Universe Home Services

Universe Home Services

Customers say: Super punctual

Recommended by 93% of Angi customers

101 local quotes requested

Since 1954, Universe Home Services has been proudly serving the Nassau County community and customers throughout the entire region. With Universe Home Services, one call solves it all! Their highly trained technicians offer everything from heating and air conditioning to plumbing to appliance repair and electrical services on Long Island and beyond. Whether you’re dealing with an inefficient heating system, a noisy air conditioner, clogged toilet, broken dishwasher, or outdated electrical service panel, you can get the fast, affordable service you need with Universe Home Services. They go above and beyond to ensure that you’re completely satisfied with the quality of their work, offering service guarantees and parts and labor guarantees on new HVAC installations. As a family owned and operated company, Universe Home Services believes in top-quality customer service. They always treat you and your property with respect, working quickly, cleanly, and efficiently to minimize your inconvenience and leave your home in pristine condition. With more than 60 years of experience under their belt, and a commitment to unmatched quality, honesty, and expertise, Universe Home Services is the trusted name for heating, air conditioning, electrical, plumbing, and appliance repair on Long Island and beyond! Call today!

"The plumber came out explained the whole process & provided me with a reasonable price that was in my budget & the next day they installed the new system. Mike was fantastic he walked me thru the whole process very neat & professional. The installation was fast & complete great job well worth the money"

Anthony G on November 2025

Since 1954, Universe Home Services has been proudly serving the Nassau County community and customers throughout the entire region. With Universe Home Services, one call solves it all! Their highly trained technicians offer everything from heating and air conditioning to plumbing to appliance repair and electrical services on Long Island and beyond. Whether you’re dealing with an inefficient heating system, a noisy air conditioner, clogged toilet, broken dishwasher, or outdated electrical service panel, you can get the fast, affordable service you need with Universe Home Services. They go above and beyond to ensure that you’re completely satisfied with the quality of their work, offering service guarantees and parts and labor guarantees on new HVAC installations. As a family owned and operated company, Universe Home Services believes in top-quality customer service. They always treat you and your property with respect, working quickly, cleanly, and efficiently to minimize your inconvenience and leave your home in pristine condition. With more than 60 years of experience under their belt, and a commitment to unmatched quality, honesty, and expertise, Universe Home Services is the trusted name for heating, air conditioning, electrical, plumbing, and appliance repair on Long Island and beyond! Call today!

"The plumber came out explained the whole process & provided me with a reasonable price that was in my budget & the next day they installed the new system. Mike was fantastic he walked me thru the whole process very neat & professional. The installation was fast & complete great job well worth the money"

Anthony G on November 2025

Emerson Brothers LLC.

4.33(

3

)

Emerson Brothers LLC.

4.33(

3

)

Customers say: Quality work

19 years of experience

We are a family-owned & operated home remodeling company with over 20 years experience specializing in a wide array of home remodeling services. All of our employees are background-checked and are not independent contractors. They are full -time employees of our company. In the event that we use a sub-contractor (plumber, electrician, and the like) they too are background checked. We are fully licensed and insured home improvement contractor in the state of New Jersey (NJ # 13VH03996000). The company is owned, managed, and staffed by two brothers and their father; each of which brings a unique set of skills and years of experience in the industry. In fact, their combined experience exceeds 80 years. Our company prides itself on craftsmanship and quality. We have countless happy clients who would be thrilled to testify for outstanding quality of work. We also do installation work for a major home improvement retail store and continually receive customer satisfaction scores in excess of 90%. We are creative and can easily make your dreams a reality within your budgetary requirements. In fact, you can see a great deal of our work and read customer yestimonials on our facebook page and you can also follow our home remodeling specials. We frequently have hardwood & laminate flooring installation specials. We are also well-know for our five day kitchen makeovers and 3 day room makeovers. We look forward to serving your family and transforming your home one room at a time! Emerson Brothers, LLC. 732-708-1026

AJ Perri

4.31(

1,535

)

AJ Perri

4.31(

1,535

)

Customers say: Super punctual

55 years of experience

For fast and exceptional service for all of your heating, cooling or plumbing needs, call us now: 732-333-3655! Since 1971, A.J. Perri has been proudly serving New Jersey homeowners and businesses across Bergen*, Essex, Mercer, Middlesex, Monmouth, Morris*, Ocean*, Somerset, Passaic*, Hudson*, Sussex*, and Union counties. With over 50 years of experience in heating, air conditioning, plumbing, and indoor air quality systems, A.J. Perri stands behind every installation, service and product with an unmatched 100% satisfaction guarantee. A.J. Perri offers you peace of mind and an established reputation for reliability, quality, and excellence in customer service. You can trust A.J. Perri to take care of your furnace, air conditioner or plumbing repair, service, or replacement. A.J. Perri can also help you with your heat pump, air handler, ductless split system, water heater or purification, sump pump, air cleaner, air filtration system, humidifier, and air ducts. Contact us if you have any questions about service in your area. Service offered 24/7/365. For more information: call or email us at info@ajperri.com. *Additional info: Not all services available in all areas. License# 19HC00103100, 36BI01256600, PA- PA126178

"Used AJ Perri in past satisfactorily but now... Furnace checkup rattling sound, tech said was due to inducer fan motor needs replacing (ball bearings). Signed agreement for $2,300, they were going to order a replacement, paid $1,175 deposit. Cancelled work before the tech left as we were going to have it done later - also looked up the cost of said motor on the manufacturer web site only $209! Billing department unavailable to have the "pending" charge removed from checking acct. Found cancellation form in paperwork, only includes mailing address with a 3 day only grace period (?). Unable to fax form as a fax # (on a different form only) just rings & rings. Had to scan and email form to general "info" address. Unable to get through to billing dept, never available. Given direct phone # for said dept which gives a recording "voice mailbox not set up" then disconnects. Homeowner fixed all rattling noises for $0 - was only loose screw inside fan motor mounting bracket. Not refunded yet."

Cathy L on December 2025

For fast and exceptional service for all of your heating, cooling or plumbing needs, call us now: 732-333-3655! Since 1971, A.J. Perri has been proudly serving New Jersey homeowners and businesses across Bergen*, Essex, Mercer, Middlesex, Monmouth, Morris*, Ocean*, Somerset, Passaic*, Hudson*, Sussex*, and Union counties. With over 50 years of experience in heating, air conditioning, plumbing, and indoor air quality systems, A.J. Perri stands behind every installation, service and product with an unmatched 100% satisfaction guarantee. A.J. Perri offers you peace of mind and an established reputation for reliability, quality, and excellence in customer service. You can trust A.J. Perri to take care of your furnace, air conditioner or plumbing repair, service, or replacement. A.J. Perri can also help you with your heat pump, air handler, ductless split system, water heater or purification, sump pump, air cleaner, air filtration system, humidifier, and air ducts. Contact us if you have any questions about service in your area. Service offered 24/7/365. For more information: call or email us at info@ajperri.com. *Additional info: Not all services available in all areas. License# 19HC00103100, 36BI01256600, PA- PA126178

"Used AJ Perri in past satisfactorily but now... Furnace checkup rattling sound, tech said was due to inducer fan motor needs replacing (ball bearings). Signed agreement for $2,300, they were going to order a replacement, paid $1,175 deposit. Cancelled work before the tech left as we were going to have it done later - also looked up the cost of said motor on the manufacturer web site only $209! Billing department unavailable to have the "pending" charge removed from checking acct. Found cancellation form in paperwork, only includes mailing address with a 3 day only grace period (?). Unable to fax form as a fax # (on a different form only) just rings & rings. Had to scan and email form to general "info" address. Unable to get through to billing dept, never available. Given direct phone # for said dept which gives a recording "voice mailbox not set up" then disconnects. Homeowner fixed all rattling noises for $0 - was only loose screw inside fan motor mounting bracket. Not refunded yet."

Cathy L on December 2025

Newman Building LLC

3.33(

3

)

Newman Building LLC

3.33(

3

)

10 years of experience

Handyman specialty

"*Many major issues with the work completed. *A lot of sloppy work , indifferent workers *The sub flooring was not installed or not properly installed causing adjoining room floors to be different levels than the newly installed floor. The previous flooring was level with all rooms throughout the 1st floor. *There are 3 significant "bumps" in flooring as the sub flooring was not installed or properly installed. Standard industry practice ;of leveling out bumps was not followed. SEE HOME DEPOT Instructions. *Contractor would not fix floor and simply installed high sills which are a tripping hazard in the same doorways for we had widened by contractor since we are over 70 with limited mobility, *Damaged stairs when removing old materials *Charged for services not done and for materials not used *Did not replace 60 year old sink/toilet shut-off valves when "modernizing bathrooms. *Water lines installed by contractor broke two times. *Work failed Building Inspection and contractor indicated he would not fix issues, he said "he was moving on". *Anderson windows installed were the wrong size ;54" instead of the 48" as other existing windows in house. *Four new doors were installed and one is different than the other 3. Two facing doors at end of hall do not match each other. *Tile work in new bathroom is not fully level and spacing of grout work is inconsistent. Contractor did try to correct but still a problem."

Craig C on August 2018

Handyman specialty

"*Many major issues with the work completed. *A lot of sloppy work , indifferent workers *The sub flooring was not installed or not properly installed causing adjoining room floors to be different levels than the newly installed floor. The previous flooring was level with all rooms throughout the 1st floor. *There are 3 significant "bumps" in flooring as the sub flooring was not installed or properly installed. Standard industry practice ;of leveling out bumps was not followed. SEE HOME DEPOT Instructions. *Contractor would not fix floor and simply installed high sills which are a tripping hazard in the same doorways for we had widened by contractor since we are over 70 with limited mobility, *Damaged stairs when removing old materials *Charged for services not done and for materials not used *Did not replace 60 year old sink/toilet shut-off valves when "modernizing bathrooms. *Water lines installed by contractor broke two times. *Work failed Building Inspection and contractor indicated he would not fix issues, he said "he was moving on". *Anderson windows installed were the wrong size ;54" instead of the 48" as other existing windows in house. *Four new doors were installed and one is different than the other 3. Two facing doors at end of hall do not match each other. *Tile work in new bathroom is not fully level and spacing of grout work is inconsistent. Contractor did try to correct but still a problem."

Craig C on August 2018

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Just In Case Plumbing & Heating LLC

Just In Case Plumbing & Heating LLC

Ryan & Company

Ryan & Company

Garon T Plumbing

Garon T Plumbing

Advanced Professional Management, LLC

Advanced Professional Management, LLC

Proficient Plumbing & Heating

Proficient Plumbing & Heating

Arctic Air Conditioning

Arctic Air Conditioning

Universe Home Services

Universe Home Services

Emerson Brothers LLC.

Emerson Brothers LLC.

AJ Perri

AJ Perri

Newman Building LLC

Newman Building LLC

The Toms River, NJ homeowners’ guide to plumbing installations for a remodel or addition

Install a Sewer Main

How Much Does Slab Leak Repair Cost in 2025?

How Much Does Bathtub Replacement Cost in 2025?

How Much Does Main Sewer Line Clog Repair Cost in 2025?

Repair a Clogged Drain

How Much Does Toilet Repair Cost in 2025?

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Get matched with top plumbing installers for a remodel or addition in Toms River, NJ

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Matching on HomeAdvisor

Find Plumbing installers for a remodel or addition in Toms River

Just In Case Plumbing & Heating LLC

Just In Case Plumbing & Heating LLC

Ryan & Company

Ryan & Company

Garon T Plumbing

Garon T Plumbing

Advanced Professional Management, LLC

Advanced Professional Management, LLC

Proficient Plumbing & Heating

Proficient Plumbing & Heating

Arctic Air Conditioning

Arctic Air Conditioning

Universe Home Services

Universe Home Services

Emerson Brothers LLC.

Emerson Brothers LLC.

AJ Perri

AJ Perri

Newman Building LLC

Newman Building LLC

The Toms River, NJ homeowners’ guide to plumbing installations for a remodel or addition

Install a Sewer Main

How Much Does Slab Leak Repair Cost in 2025?

How Much Does Bathtub Replacement Cost in 2025?

How Much Does Main Sewer Line Clog Repair Cost in 2025?

Repair a Clogged Drain

How Much Does Toilet Repair Cost in 2025?

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