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Find Plumbing installers for a remodel or addition in Antioch

Pedro Galvan Plumbing, Inc.
4.9(
17
)

Angi Approved

In business since 2004

Free estimates

Customers say: Quality work

"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."
Recommended by94%of homeowners
Avatar for Prime Time Plumbing
Prime Time Plumbing
5.0(
3
)

Angi Approved

In business since 2023

Free estimates

Emergency services offered

"I had a great experience with them. They did a tankless water heater for a fair price and helped install new water lines for my espresso machine in my cafe. Would recommend to anyone who needs the job done right!"
Recommended by100%of homeowners
Avatar for Albert Nahman Plumbing, Heating, and Cooling
Albert Nahman Plumbing, Heating, and Cooling
4.6(
622
)

Angi Approved

In business since 1981

Warranties offered

Customers say: Super punctual

"The crew from Albert Nahman did a great job from start to finish. The project was to replace the original ductwork in our 60 year old house. Tom provided excellent advice for the estimate then Bryan’s crew did the job, 2 days, within a week of my acceptance of the proposal. Great work."
26 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Oak Plumbing Inc
Oak Plumbing Inc
4.6(
90
)

Angi Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Excellent. Two employees did the job. Nice guys. Very polite and they were able to complete a complex job on time. I would definitely hire this company if I ever needed a plumber. The guy who sold us on the job was extremely knowledgeable which is why I selected this company."
9 neighbors recently requested a quote
Recommended by87%of homeowners
D.W Henninger Construction
New to Angi

In business since 1989

Free estimates

Warranties offered

Founded in 1989 by Dean Henninger, D.W. Henninger Construction has been recognized as a leading builder of custom homes and remodeling projects. Acting as a General Contractor, the entire Henninger team is known to exceed client expectations, leading to a steady stream of testimonials and referral clients.\n\nOver the past two decades, Henninger has managed projects in California: kitchens, bathrooms, room additions, entire home renovation, even complete construction of homes. Regardless of scope, Henninger approaches each project with the same foundation of principals: strong design aesthetics, comprehensive product options, sound project management, and a commitment to craftsmanship.\n\nDesign Aesthetics: With 20+ years of Bay Area experience, Henninger understands the many architectural quirks unique to Bay Area communities, making it easy to elaborate and integrate with established design aesthetics.\nProduct Options: Henninger is truly unique in being a single-source stop for design, remodeling, and product resources. Cabinetry, countertops, appliances, and plumbing fixtures are all available options for your project, and Henninger assists with selection, delivery, even vendor communication if there’s a problem.\nProject Management: Project management is essential to delivering a good customer experience. Henninger prioritizes project management to the same degree as design and crafting. Henninger is unique in using progress billing — a system that only charges for services following completion rather than pre-paying weeks or months before it starts.\nCraftsmanship: Henninger’s team of carpenters bring the best combination of experience and expertise to the table, but they offer much more than technical proficiency — by working with true craftsmen, Henninger projects balance design and functionality for maximum results on each and every project, regardless of scope.\nOur service areas: Oakland, Pleasanton, Livermore, Walnut Creek, Fremont, and surrounding cities. Projects in San Francisco and San Jose are also feasible — contact us for more information.

Avatar for NWP Heating and Air
NWP Heating and Air
4.5(
155
)

In business since 2000

Emergency services offered

"If zero stars were an option, I would choose it. They failed to show up for their scheduled appointment, never followed up, and did not respond to the home insurance company assigned to handle our case. As a result, absolutely nothing moved forward. Because of their inaction, our home has been without heat in the middle of winter for 13 days and counting. This is not a minor inconvenience?it?s a serious failure. I regret working with them. This has been an extremely frustrating and unacceptable experience"
Recommended by85%of homeowners
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FAQs for plumbing installation for a remodel or addition projects in Antioch, 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 Antioch, 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.