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TRUSTED BY UNION CITY, CA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon1.1k+
    Verified plumbing services reviews

Verified Reviews for Plumbing pros in Union City, CA

*The Angi rating for Plumbing companies in Union City, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Plumbing needs.

*The HomeAdvisor rating for Plumbing companies in Union City, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Plumbing needs.

Last update on November 13, 2025

Find Plumbers in Union City

Avatar for Water Heaters Masters

Water Heaters Masters

4.89(
105
)
•Approved Pro

Water Heaters Masters

4.89(
105
)
•Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
63 local quotes requested

We are a small family owned business and our reputation is built one satisfied customer at a time. In a time where finding honest and well trained experts in the plumbing industry is difficult, we pride ourselves in serving you better. We know you have choices and will make every effort to demonstrate that we are the best option for your water heater, tankless water heater, and high efficiency water heater needs. We offer competitive pricing, the best products, and most important great customer service. We also want to do work for your friends and family, so the best endorsement for us is a job well done and a happy customer. We do standard water heater repairs and replacement but also bigger projects like relocation jobs and tankless water heater installations to name a few. Our technicians are highly experienced and have installed thousands of water heaters. Call or text us at 925-817-8342 for a free estimate. We serve residential or commercial customers, including apartments and condos.

"I have what turned out to be a 30 year old water heater replaced by this great company and they did it the same day of the quote. The installer had the water heater I wanted on the truck and did an excellent job of putting in the new unit, cleaning up and even replacing copper flex tubing and installing a new overflow pipe out of copper as well, no additional cost. This company specializes in water heaters and couldn't do any additional work on supply lines and they clearly state that on their website. I didn't need that type of additional work."

David C on September 2018

We are a small family owned business and our reputation is built one satisfied customer at a time. In a time where finding honest and well trained experts in the plumbing industry is difficult, we pride ourselves in serving you better. We know you have choices and will make every effort to demonstrate that we are the best option for your water heater, tankless water heater, and high efficiency water heater needs. We offer competitive pricing, the best products, and most important great customer service. We also want to do work for your friends and family, so the best endorsement for us is a job well done and a happy customer. We do standard water heater repairs and replacement but also bigger projects like relocation jobs and tankless water heater installations to name a few. Our technicians are highly experienced and have installed thousands of water heaters. Call or text us at 925-817-8342 for a free estimate. We serve residential or commercial customers, including apartments and condos.

"I have what turned out to be a 30 year old water heater replaced by this great company and they did it the same day of the quote. The installer had the water heater I wanted on the truck and did an excellent job of putting in the new unit, cleaning up and even replacing copper flex tubing and installing a new overflow pipe out of copper as well, no additional cost. This company specializes in water heaters and couldn't do any additional work on supply lines and they clearly state that on their website. I didn't need that type of additional work."

David C on September 2018

Avatar for Albert Nahman Plumbing, Heating, and Cooling

Albert Nahman Plumbing, Heating, and Cooling

4.45(
686
)
•Approved Pro

Albert Nahman Plumbing, Heating, and Cooling

4.45(
686
)
•Approved Pro
Customers say: Super punctual
694 local quotes requested
44 years of experience

Albert Nahman Services was founded in 1981 and has been serving Berkeley, CA and it surrounding areas in all their plumbing and HVAC needs. Each of our technicians went through rigorous training so we can guarantee that you will be receiving the proper service. We are also insured and supply a warranty for our parts for five years and up to twenty years on an re-piping or sewer replacement. Call us now to make your appointment!

"The plumbing technicians came out as promised to assess the leak. They were both very courteous and kind and assessed the damage. I am giving three stars because they estimated the cost to be almost 250% higher than what the actual cost was to fix the issue. I am sure there are customers out there that would just accept any bid however, please get multiple beds for these projects, especially when working with this company as they will inflate the cost to take advantage of the situation. I ended up only paying for the $79 estimate."

Kevin C on September 2025

Albert Nahman Services was founded in 1981 and has been serving Berkeley, CA and it surrounding areas in all their plumbing and HVAC needs. Each of our technicians went through rigorous training so we can guarantee that you will be receiving the proper service. We are also insured and supply a warranty for our parts for five years and up to twenty years on an re-piping or sewer replacement. Call us now to make your appointment!

"The plumbing technicians came out as promised to assess the leak. They were both very courteous and kind and assessed the damage. I am giving three stars because they estimated the cost to be almost 250% higher than what the actual cost was to fix the issue. I am sure there are customers out there that would just accept any bid however, please get multiple beds for these projects, especially when working with this company as they will inflate the cost to take advantage of the situation. I ended up only paying for the $79 estimate."

Kevin C on September 2025

Avatar for F.C Plumber

F.C Plumber

5.00(
4
)
•Approved Pro

F.C Plumber

5.00(
4
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience

We have 7 year experience on plumbing we are very clean and we use heavy duty materials. To get the best quality project.

"Fernando was quick to replace the valve."

Andreas S on September 2025

We have 7 year experience on plumbing we are very clean and we use heavy duty materials. To get the best quality project.

"Fernando was quick to replace the valve."

Andreas S on September 2025

Avatar for Bay Water Plumbing

Bay Water Plumbing

5.00(
10
)
•Approved Pro

Bay Water Plumbing

5.00(
10
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

Bay Water Plumbing & Water Systems offers the best water treatment systems on the market. We are locally owned and we're the professionals that you can trust! We have been providing water system products to customers in the Bay Area for over 10 years. Our company installs the best quality water heaters on the market. Contact us to help you eliminate hard water from your home.

"Repairman was very professional and did a great job with the repair. I haven’t had issues with my water heater since."

Xavier G on February 2021

Bay Water Plumbing & Water Systems offers the best water treatment systems on the market. We are locally owned and we're the professionals that you can trust! We have been providing water system products to customers in the Bay Area for over 10 years. Our company installs the best quality water heaters on the market. Contact us to help you eliminate hard water from your home.

"Repairman was very professional and did a great job with the repair. I haven’t had issues with my water heater since."

Xavier G on February 2021

510 Plumbing - Unlicensed Contractor

5.00(
1
)
•Approved Pro

510 Plumbing - Unlicensed Contractor

5.00(
1
)
•Approved Pro
1 years of experience
Free onsite estimate

Here at 510 Plumbing, I pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of service. I handle plumbing repair work in Fremont and the surrounding areas - Call today!

"Had a leaking cartridge in my bathroom , was scared to mess with it , so I called 510 plumbers and they took care of it for me and replaced it !"

Andres O on February 2025

Here at 510 Plumbing, I pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of service. I handle plumbing repair work in Fremont and the surrounding areas - Call today!

"Had a leaking cartridge in my bathroom , was scared to mess with it , so I called 510 plumbers and they took care of it for me and replaced it !"

Andres O on February 2025

Avatar for Prime Time Plumbing

Prime Time Plumbing

5.00(
3
)
•Approved Pro

Prime Time Plumbing

5.00(
3
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"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!"

Alex H on October 2023

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"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!"

Alex H on October 2023

Mendoza Plumbing Services - Unlicensed Contractor

New on AngiNew on Angi
•Approved Pro

Mendoza Plumbing Services - Unlicensed Contractor

New on AngiNew on Angi
•Approved Pro
5 years of experience
Free onsite estimate

I pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of service - Call today!

I pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of service - Call today!

Pedro Galvan Plumbing, Inc.

4.85(
17
)
•Approved Pro

Pedro Galvan Plumbing, Inc.

4.85(
17
)
•Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
21 years of experience

Pedro Galvan Ramirez Plumbing, Inc., is the premier plumbing contractor in the Richmond Area. We finish every job to the customer's standards. Call today for a free quote!

"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."

Nicola S on July 2025

Pedro Galvan Ramirez Plumbing, Inc., is the premier plumbing contractor in the Richmond Area. We finish every job to the customer's standards. Call today for a free quote!

"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."

Nicola S on July 2025

Avatar for JPC Rooter & Plumbing

JPC Rooter & Plumbing

4.82(
46
)
•Approved Pro

JPC Rooter & Plumbing

4.82(
46
)
•Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
26 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"They did a number of things. Braced and restrapped water heater and ran copper line for pressure relief to outside. Unclogged master toilet and reseated. Bolted down second toilet. Reconnected clothes dryer vent. Repaired air gap/garbage disposal and drain line under kitchen sink, crawled under house and remove galvanized pipe straps and replaced with nylon pipe clamps. I was a contractor and used to do this work, o an very critical. They did an outstanding job. Went the extra mile several times. I was expecting a bill for a higher amount but they stuck with their estimate. I recommend them highly and would use them again!!"

Cyril K on March 2022

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"They did a number of things. Braced and restrapped water heater and ran copper line for pressure relief to outside. Unclogged master toilet and reseated. Bolted down second toilet. Reconnected clothes dryer vent. Repaired air gap/garbage disposal and drain line under kitchen sink, crawled under house and remove galvanized pipe straps and replaced with nylon pipe clamps. I was a contractor and used to do this work, o an very critical. They did an outstanding job. Went the extra mile several times. I was expecting a bill for a higher amount but they stuck with their estimate. I recommend them highly and would use them again!!"

Cyril K on March 2022

Avatar for Super Velazquez Handyman

Super Velazquez Handyman

New on AngiNew on Angi
•Approved Pro

Super Velazquez Handyman

New on AngiNew on Angi
•Approved Pro
8 years of experience
Free onsite estimate

I pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of service - Call today!

I pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of service - Call today!

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Plumbing questions, answered by experts

The amount of clean water your cistern can supply depends on its size and the local rainfall patterns. Cisterns range from a few hundred to several thousand gallons in capacity. 

To estimate the potential supply, consider the average annual rainfall in your area and the catchment area of your roof. For instance, a 1,000-square-foot roof can collect around 600 gallons of water from just one inch of rainfall. 

Multiply this by the average annual rainfall to get a rough idea. However, factors like evaporation and system efficiency will also play a role.

A pipe burst will cause a portion of the water flowing into your home to escape through the damaged area, but some water is still likely to flow to your plumbing fixtures. If you’re noticing reduced water pressure or the slow flow of water from your sinks, you might have a burst pipe on your hands, especially if the weather is particularly cold outside. When in doubt, call in a plumber to inspect your system and check for leaks.

It is safe to use a frost-proof or freeze-proof spigot or pump in the winter if you live in an area with freezing temperatures. Otherwise, it's best to fully drain and shut down your outside spigot in the winter to avoid cracking a pipe.

Plumbers can be held liable for their work for anywhere from a year to six years, depending on where you live, but in most states, premises liability lasts for three to four years. You can contact your state’s licensing board to find out how long your plumber is liable. Your local building department or a consumer protection agency in your area can also confirm the timeline for you.

Capping a gas line costs approximately $125. The final price varies from $75 and $150 depending on your contractor’s hourly rate. To completely remove a gas line and cap it at the base can cost up to $250. Most contractors will charge a flat fee instead of by the hour since capping is often part of a larger project.

The Union City, CA homeowners’ guide to plumbing services

From average costs to expert advice, get all the answers you need to get your job done.

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