Top-rated plumbing installers for a remodel or addition.

Get matched with top plumbing installers for a remodel or addition in Danville, 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 Danville

Avatar for Oak Plumbing Inc
Oak Plumbing Inc
4.6(
99
)

Serving Danville, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Oak called 2nd but came next day/ UN-prepared to do either repair or water test (requested on phone) or even replace with ready new ADA toilet that the lying receptionist booker said they have “some in stock and if not he will show a catalog of choices”. Guy came punctually with Nzo tools or appliances Or knowledge of what I asked for as an “URGENT repair/replace”. See ABC review same call. Not quite as bad as them doing same since we also still have broken HVAC too, both said they would fix ( I bought gasket already, they could have put in) or replace if they brought new toilet. Problem is not in water pipes except they need testing for lead - both said they would do this too - when I asked oak re taking a sample, how long sitting in pipes? He wiped off his soda water bottle and asked “which pipes?” !!"
Response time2 days
5 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Plumbing 1 Builder's Inc
Plumbing 1 Builder's Inc
5.0(
16
)

Serving Danville, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Warranties offered

"These guys were great. Fixed the issue and went above and beyond with a few extra repairs. Professional and cleaned up everything. I will definitely reach out again for any work in the future."
Response time3 hrs
66 neighbors recently requested a quote
Pedro Galvan Plumbing, Inc.
4.9(
20
)

Serving Danville, CA and surrounding areas

Approved

In business since 2004

Free estimates

Offers commercial services

"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."
Response time8 hrs
Recommended by94%of homeowners
Avatar for Albert Nahman Plumbing, Heating, and Cooling
Albert Nahman Plumbing, Heating, and Cooling
4.4(
714
)

Serving Danville, CA and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Warranties offered

"This project needed 2 people. My old refrigerator was extremely heavy. I took a photo and submitted it Angie’s list. I would of thought a large stainless steel fridge would almost impossible to move with only one pro. My only complaint is that my old fridge is sitting outside because it was too heavy and dangerous for the pro to move to the garage himself."
Living room Mini-Split
Aquasana home Filtration
Almost no disturbance at EBMUD meter
Navien with filtration to protect the heat exchanger
New house valve and Pressure Reducing Valve

+73

Response time8 hrs
Response rate99%
54 neighbors recently requested a quote
Avatar for Pipe Systems and Solutions
Pipe Systems and Solutions
5.0(
6
)

Serving Danville, CA and surrounding areas

Approved

In business since 2024

Free estimates

Warranties offered

"When remodeling our house, pipe systems and solutions showed a high level of skill and craftsmanship. We were extremely happy with the results. Marvin was not only highly skilled but honest and showed real customer care which helped us prevent unnecessary spending, and he also helped us understand where we should invest when it came to materials and labor. I have personally recommended this company to a couple of friends because it’s not easy to find good and honest people."
16 neighbors recently requested a quote
Avatar for West Peak Builders, Inc.
West Peak Builders, Inc.
4.4(
43
)

Serving Danville, CA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Leo and his crew are skilled craftsmen. They do a variety of work and do it all right. They refused to settle for anything less than perfect and gave the extra effort to make the project gorgeous. They really cared about their work and showed excitement about the final product. They should be excited. It is beautiful! They patched a ton of drywall that we had removed as result of a skunk dying in the walls. They worked with our situation (pretty stinky at first) and took great care in replacing the drywall and insulation, matching texture (best I have ever seen), and painted three separate colors with perfect lines. They even came back and touched up areas that THEY were not satisfied with and then left the place spotless. Their work upgraded my space significantly. I look forward to our next project with them."
Response time5 hrs
Recommended by97%of homeowners
Avatar for Superior Plumbing & Drain Cleaning Services
Superior Plumbing & Drain Cleaning Services
4.5(
559
)

Serving Danville, CA and surrounding areas

In business since 2002

Emergency services offered

Warranties offered

"The plumbers from Superior Plumbing were excellent. They replaced and rerouted water pipes, changing from galvanized to copper pipes. The sewer lines in our house were repaired. They also replaced an aging hot water heater. The technicians arrived on time, worked diligently through the day, and were efficient. We added on the sewer repair which added an additional day. All work was completed within four days. I am impressed with their knowledge and workmanship. The technicians were tidy and removed all our old materials including the hot water heater. I would recommend Superior Plumbing and Drainage Co without hesitation."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+9

Response time7 hrs
Response rate100%
Recommended by88%of homeowners
...
Showing 1-10 of 205
FAQs for plumbing installation for a remodel or addition projects in Danville, 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 Danville, 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.