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Top-Rated Plumbing installers for a remodel or addition in Alameda - Updated Nov 2026

Avatar for Plumbing 1 Builder's Inc
Plumbing 1 Builder's Inc
5.0(
17
)
Plumbing for a Remodel or Addition - Install

Serving Alameda, 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
Response rate85%
61 neighbors recently requested a quote
Avatar for Albert Nahman Plumbing, Heating, and Cooling
Albert Nahman Plumbing, Heating, and Cooling
4.4(
722
)
Plumbing for a Remodel or Addition - Install

Serving Alameda, CA and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Warranties offered

"This is the third time I have used Albert Nahman. This time was for a water leak with an unclear origin. They did a great job diagnosing the problem and took the time to explain what they found and offer options on potential fixes. I really appreciate the care their plumber took in tracking down the problem and providing a realistic quote for the cost and time to fix the problem. They also arrive on time and do a great job cleaning up after the work is done. A+++ company. Will definitely use them again the in future."
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 rate100%
44 neighbors recently requested a quote
Avatar for Prime Time Plumbing
Prime Time Plumbing
5.0(
6
)
Plumbing for a Remodel or Addition - Install

Serving Alameda, CA and surrounding areas

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!"
Response time40 mins
Response rate88%
Recommended by100%of homeowners
Avatar for Abdel's Home services
Abdel's Home services
5.0(
9
)
Plumbing for a Remodel or Addition - Install

Serving Alameda, CA and surrounding areas

Approved

Hi, I’m Abdel, owner of Abdel’s Home Services. I’ve been providing residential repair and installation services for several years, helping homeowners with everything from small fixes to detailed improvement projects.\nI serve the Bay Area and surrounding communities, and I’m willing to travel locally for the right project. My specialties include TV mounting, door adjustments and installations, cabinet installation, drywall repair, fixture replacements, hardware installation, and general home repairs.\nClients hire me because I focus on quality, precision, and clear communication. I show up on time, protect your home, and make sure the work is done properly — not rushed. My goal is to leave every homeowner satisfied and confident in the results.\nI look forward to helping with your next project.

Avatar for ELITE ROOTER, INC. - San Mateo
ELITE ROOTER, INC. - San Mateo
4.7(
16
)
Plumbing for a Remodel or Addition - Install

Serving Alameda, CA and surrounding areas

Approved (Corporate)

In business since 2017

Free estimates

Credit card accepted

Are you searching for a reliable plumber ? Elite Rooter offers expert drain cleaning & a full range of residential plumbing services . As expereinced plumbers, we understand the frustration of plumbing problems & provide fast, dependable, and affordable solutions, available 24/7 for emergencies. Whether it's a stubborn clogged drain, a leaky pipe, or a need for water heater repair or installation, our licensed & insured technicians are ready to help. You'll always receive upfront pricing with no hidden fees, and we stand behind our work with a 100% satisfaction guarantee. For dependable plumbing repair & drain cleaning services, contact Elite Rooter today ? we're here to help!.

My Work
My Work
My Work
My Work
My Work

+15

Recommended by62%of homeowners
Avatar for Dynamic Plumbing And Drain LLC
Dynamic Plumbing And Drain LLC
5.0(
3
)
Plumbing for a Remodel or Addition - Install

Serving Alameda, CA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"What seemed like a straight forward fix (leaking old galvanized pipes under concrete garage floor) turned into a very challenging job that was further complicated by both duplex units being involved. Nathan and his crew were simply outstanding in every way. Professional, totally reliable, highly knowledgeable and very tidy. I tell it like it is: you will have an excellent experience working with Nathan and his crew."
Response time9 hrs
1 neighbors recently requested a quote
Recommended by100%of homeowners
Warriors Plumbing
5.0(
3
)
Plumbing for a Remodel or Addition - Install

Serving Alameda, CA and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

"Sergio's services were excellent. He was the first to call after I sent a request for recommendation to Home Advisor. He was prompt, arriving in advance of our appointment. He diagnosed and fixed both leaks (faucet and toilet) and provided excellent value for the cost. I'd call Sergio again for any plumbing problem. Thank's Sergio!"
Response time11 hrs
Recommended by100%of homeowners
Avatar for TRIO Heating, Air & Plumbing
TRIO Heating, Air & Plumbing
5.0(
5
)
Plumbing for a Remodel or Addition - Install

Serving Alameda, CA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

At TRIO Heating, Air & Plumbing, our mission is clear: to provide top-tier heating and air conditioning services while focusing on exceptional customer experiences, employee happiness, and environmental responsibility. We are dedicated to delivering outstanding service that ensures our customers are satisfied and our team is motivated.

Heating & Air Conditioning Installations
Heating & AC Install
Heating & AC Install
Heating & AC Install
Heating & AC Install

+101

Response time4 hrs
Response rate93%
11 neighbors recently requested a quote
Avatar for Albion Plumbing & Rooter Inc
Albion Plumbing & Rooter Inc
1.0(
1
)
Plumbing for a Remodel or Addition - Install

Serving Alameda, CA and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

At Albion Plumbing & Rooter Inc., our mission is simple: complete customer satisfaction. We provide reliable, high-quality plumbing services with personalized attention, honest communication, and a stress-free experience.\nFrom small repairs to larger plumbing projects, our team brings the same commitment to service, safety, quality, and attention to detail to every job. We offer competitive pricing while never compromising the professional artistry our customers deserve.\nWe value the trust our customers place in us and look forward to building lasting relationships throughout the Bay Area—one satisfied customer at a time.\n

1 neighbors recently requested a quote
Avatar for Superior Plumbing & Drain Cleaning Services
Superior Plumbing & Drain Cleaning Services
4.5(
563
)
Plumbing for a Remodel or Addition - Install

Serving Alameda, CA and surrounding areas

In business since 2002

Emergency services offered

Warranties offered

"Superior plumbing has saved the day for me on countless occasions. I hit a sewer pipe with a lawnmower because it was sticking out of the ground and hidden by overgrown grass. I didn't know what it was, and sewage started coming out a few days later. I had another plumbing company come out and quote me $30k for a sewer lateral. I then had Superior Plumbing come out since they had recently installed a sewer lateral for my parents' house for much less. They said a piece of the pipe fell into the pipe, causing it to clog. They pulled out the piece, then cut the pipe to the ground and put a concrete cap that said "sewer," so I wouldn't hit it with the lawn mower again. It cost $1700 instead of $30k! Last week, the landscapers hit the cast iron sewer pipe coming from the bathroom outside. I immediately called Superior Plumbing, and they came out in 30minutes, as luckily they were close by. They addressed the issue and returned a few days later to replace the pipe with PVS, which proved to be very affordable. I then had them return to strap pipes under the house and install a water pressure regulator, as the water pressure was 95 when it should be 60. This could cause major problems with too high water pressure down the road with burst or leaking pipes. Look no further than Superior Plumbing for your plumbing needs!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+9

Response time7 hrs
Response rate100%
Recommended by88%of homeowners
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FAQs for plumbing installation for a remodel or addition projects in Alameda, 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 Alameda, 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.