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Find Plumbing installers for a remodel or addition in Napa

Avatar for Moore Home Services
Moore Home Services
4.8(
356
)

Serving Napa, CA and surrounding areas

Angi Approved

In business since 2009

Free estimates

Credit card accepted

"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."
If you’re in Santa Rosa, California, and in need of professional AC installation services, look no further. We offer top-notch services to ensure your home or business stays cool and comfortable year-round.
A new heating system is a big investment. We’ll help you every step of the way.
Furnace Repair in North Bay, CA
If Your Furnace is Broken — We’ll Be There ASAP
Top Rated Santa Rosa Plumbing Repair, CA
No one wants to deal with a clogged drain. Whether it’s in the kitchen, bathroom, or utility sink, all clogs are a headache. The good news is that when you’re stuck staring at a sink that won’t drain, you can call the experts at Moore Home Services.
Water Heater Service, Installation, and Repair in Santa Rosa, CA.

+7

37 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Lee's Air, Plumbing & Heating
Lee's Air, Plumbing & Heating
4.7(
95
)

Serving Napa, CA and surrounding areas

Angi Approved

In business since 1981

Emergency services offered

Warranties offered

"arrived right on time, put on shoe covers without being asked, and took a few minutes to listen to the full story before diving in. He diagnosed the issue quickly, walked me through what was going on"
New AC & Heating Install
New AC & Heating Install
New AC & Heating Install
Our HVAC pro performing an ac and heating repair
Angi 2021 Super Service Award

+36

Response time6 hrs
6 neighbors recently requested a quote
Recommended by91%of homeowners
Pedro Galvan Plumbing, Inc.
4.9(
17
)

Serving Napa, CA and surrounding areas

Angi 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 H K & S Plumbing Co.
H K & S Plumbing Co.
4.7(
76
)

Serving Napa, CA and surrounding areas

Angi Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"QUICK RESPONSE, stayed with the commitment, fair pricing, good work, replaced a valve that was not shutting off all the way and did not charge me."
Response time11 hrs
126 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for AP Plumbing Co
AP Plumbing Co
5.0(
6
)

Serving Napa, CA and surrounding areas

Angi Approved

In business since 2016

Free estimates

Credit card accepted

"Oscar was recommended to me by a local contractor and my experience with him was absolutely the best of any subcontractor i have hired! He did the rough in on a two bathroom addition at a fair price and with an extremely clean installation. He was very conscientious and finished ahead of schedule. When I called Oscar to come back to install the fixtures he got me right into his schedule and again exceeded all expectations. I will never need to find another plumber because I have now found the best!! "
Gallery
Gallery
Gallery
Gallery
Gallery

+14

Avatar for Ag plumbing co
Ag plumbing co
5.0(
4
)

Serving Napa, CA and surrounding areas

Angi Approved

Free estimates

Emergency services offered

Warranties offered

"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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+51

Response time9 hrs
Recommended by100%of homeowners
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FAQs for plumbing installation for a remodel or addition projects in Napa, 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 Napa, 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.