Top-rated boiler installation pros.

Get matched with top boiler installation pros in Union City, CA

There are 11 highly-rated local boiler installation pros.

Need a pro for your boiler installation project in Union City, CA?

Select your specific project to find the pro for you.

TRUSTED BY UNION CITY, CA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon1.2k+
    Verified boiler installation services reviews

Find Boiler installation pros in Union City

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
79 local quotes requested

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


Avatar for RG Construction

RG Construction

5.00(
4
)
Approved Pro

RG Construction

5.00(
4
)
Approved Pro
Free onsite estimate
Emergency services offered

We have been in the construction industry for over 10 years. From building ADUs, high-end kitchen remodels, bathroom remodels and home extensions, we have done just about everything under general construction. Our company prioritizes safety, quality and transparency.

"Me and my wife decided recently to get our kitchen remolded. After some time searching for the right guys to do the job we settled on RG Construction. Richard, who is the owner, is a great guy and super informative. He never left any question unanswered or left us uncertain about anything. His crew works quick, and they pay attention to the tiniest detail. They absolutely are worth every dollar and I would recommend RG Construction to any homeowner, and I for sure will be giving them a call back for any work I need done in the future. Me and my wife are absolutely in love with our remodel."

Jesse O on November 2025

We have been in the construction industry for over 10 years. From building ADUs, high-end kitchen remodels, bathroom remodels and home extensions, we have done just about everything under general construction. Our company prioritizes safety, quality and transparency.

"Me and my wife decided recently to get our kitchen remolded. After some time searching for the right guys to do the job we settled on RG Construction. Richard, who is the owner, is a great guy and super informative. He never left any question unanswered or left us uncertain about anything. His crew works quick, and they pay attention to the tiniest detail. They absolutely are worth every dollar and I would recommend RG Construction to any homeowner, and I for sure will be giving them a call back for any work I need done in the future. Me and my wife are absolutely in love with our remodel."

Jesse O on November 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


Avatar for AMJ Services - Unlicensed Contractor

AMJ Services - Unlicensed Contractor

5.00(
3
)
Approved Pro

AMJ Services - Unlicensed Contractor

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

AMJ Services is a family owned, locally operated home repair and home improvement company with over 10+ years experience servicing San Joaquin county. We provide an extensive list of comprehensive services to include everything from home repairs, assembly, and installation to larger home improvement and remodeling projects. We are committed to quality work, great prices and we get back to our clients right away to schedule your project! Regardless of the size of your project... simple repairs, installation and furniture assembly or larger projects, you can rely on us for exceptional workmanship and competitive prices for a JOB DONE RIGHT! Call us today to get your repairs or projects scheduled! 510-224-8204

"Awesome"

Betty K on May 2023

AMJ Services is a family owned, locally operated home repair and home improvement company with over 10+ years experience servicing San Joaquin county. We provide an extensive list of comprehensive services to include everything from home repairs, assembly, and installation to larger home improvement and remodeling projects. We are committed to quality work, great prices and we get back to our clients right away to schedule your project! Regardless of the size of your project... simple repairs, installation and furniture assembly or larger projects, you can rely on us for exceptional workmanship and competitive prices for a JOB DONE RIGHT! Call us today to get your repairs or projects scheduled! 510-224-8204

"Awesome"

Betty K on May 2023


Avatar for Tankless Plumbing Solutions

Tankless Plumbing Solutions

4.85(
31
)
Approved Pro

Tankless Plumbing Solutions

4.85(
31
)
Approved Pro
Super Service Award
Customers say: True professional
17 local quotes requested
2 years of experience

TANKLESS PLUMBING SOLUTIONS has over 25 years of plumbing experience and SPECIALIZES in tankless systems. Our comprehensive skillset includes piping water & gas lines, intake & exhaust ducting, GFCI protected electrical branch lines and sheetrock repair. Turnkey project completed to manufacturer's specifications and City code requirements. We recently partnered with Home Advisor to expand our business. We do a variety of plumbing projects and are committed to customer service with an attention to detail. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Tony and his crew were skilled, professional and did a wonderful job. When I listed the job on Angi, Tony responded within 20 minutes. He asked about the job, asked for some pictures and I had a solid quote within an hour. Our installation had some challenges and, instead of making these issues more complicated and jacking up the price like other contractors did, he quickly came up with sensible solutions at a fair price. The job was done in one day and our new tankless water heater is superb! I highly recommend Tony and Tankless Plumbing Solutions."

William N on October 2025

TANKLESS PLUMBING SOLUTIONS has over 25 years of plumbing experience and SPECIALIZES in tankless systems. Our comprehensive skillset includes piping water & gas lines, intake & exhaust ducting, GFCI protected electrical branch lines and sheetrock repair. Turnkey project completed to manufacturer's specifications and City code requirements. We recently partnered with Home Advisor to expand our business. We do a variety of plumbing projects and are committed to customer service with an attention to detail. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Tony and his crew were skilled, professional and did a wonderful job. When I listed the job on Angi, Tony responded within 20 minutes. He asked about the job, asked for some pictures and I had a solid quote within an hour. Our installation had some challenges and, instead of making these issues more complicated and jacking up the price like other contractors did, he quickly came up with sensible solutions at a fair price. The job was done in one day and our new tankless water heater is superb! I highly recommend Tony and Tankless Plumbing Solutions."

William N on October 2025


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 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!


Avatar for P A Remodeling/Sami & Sons, Inc.

P A Remodeling/Sami & Sons, Inc.

4.36(
7
)
Approved Pro

P A Remodeling/Sami & Sons, Inc.

4.36(
7
)
Approved Pro
Customers say: Quality work
9 years of experience
Free onsite estimate

We’re a family business: Sami, Pini and their sons are the core of Sami and Sons. When you work with us you’re treated like family. We value our customer’s time, needs, and opinions. We want to build beautiful things together and help your home fit your needs. We bring Silicon Valley to building: Whether we are remodeling your kitchen or building you a new home we have all the tools needed to make the process seamless. From 3-D designs to VR (virtual reality) walk-throughs you will know exactly how your project will look at completion. We are here for you every step: You will be taken care of and in touch with your own personal project manager that is assigned to you and your project. We are there for every development and every question. You’re family, we’ll take care of you. Our customers love us: And we love them too. Check out our Houzz, Yelp, and Facebook!

"We chose Sami and Sons over 3 other contractors we interviewed with to remodel our bathroom, and we couldn't be happier. After meeting with Abel and Sami himself we discussed a very reasonable cost estimate for the work that needed to be done. Abel even took us out shopping to several tile and home improvement stores to fan our imaginations of what could be possible for our new bathroom. Throughout the entire process the staff from their front office to their onsite project manager Paul were always very responsive and helpful. This was our first major remodel and laborers were very knowledgeable about creating the bathroom we wanted to achieve while keeping up to date with building codes and city permits. Mario and Erick always asked us questions on how we wanted details in the bathroom to turn out. Always gave us suggestions when we were clueless, and always advised us properly when choosing fixtures and other materials for the build. It was very helpful and reassuring that the managers used the BuilderTrend scheduling app so we knew what tasks were to be completed and on what days so my wife and I could plan things ahead of time. There was a miscommunication about the work at one point, but once we were able to talk to the project manager and other managers on the job they were able to resolve the issue very quickly and to our satisfaction. Scheduling work per day could've been more efficient, but overall we loved the results and our bathroom turned out exactly the way we envisioned and we've been loving it ever since it's completion. Thanks again Sami and Sons for making our dream come true."

Deo B on October 2021

We’re a family business: Sami, Pini and their sons are the core of Sami and Sons. When you work with us you’re treated like family. We value our customer’s time, needs, and opinions. We want to build beautiful things together and help your home fit your needs. We bring Silicon Valley to building: Whether we are remodeling your kitchen or building you a new home we have all the tools needed to make the process seamless. From 3-D designs to VR (virtual reality) walk-throughs you will know exactly how your project will look at completion. We are here for you every step: You will be taken care of and in touch with your own personal project manager that is assigned to you and your project. We are there for every development and every question. You’re family, we’ll take care of you. Our customers love us: And we love them too. Check out our Houzz, Yelp, and Facebook!

"We chose Sami and Sons over 3 other contractors we interviewed with to remodel our bathroom, and we couldn't be happier. After meeting with Abel and Sami himself we discussed a very reasonable cost estimate for the work that needed to be done. Abel even took us out shopping to several tile and home improvement stores to fan our imaginations of what could be possible for our new bathroom. Throughout the entire process the staff from their front office to their onsite project manager Paul were always very responsive and helpful. This was our first major remodel and laborers were very knowledgeable about creating the bathroom we wanted to achieve while keeping up to date with building codes and city permits. Mario and Erick always asked us questions on how we wanted details in the bathroom to turn out. Always gave us suggestions when we were clueless, and always advised us properly when choosing fixtures and other materials for the build. It was very helpful and reassuring that the managers used the BuilderTrend scheduling app so we knew what tasks were to be completed and on what days so my wife and I could plan things ahead of time. There was a miscommunication about the work at one point, but once we were able to talk to the project manager and other managers on the job they were able to resolve the issue very quickly and to our satisfaction. Scheduling work per day could've been more efficient, but overall we loved the results and our bathroom turned out exactly the way we envisioned and we've been loving it ever since it's completion. Thanks again Sami and Sons for making our dream come true."

Deo B on October 2021


Avatar for Chandler's Plumbing

Chandler's Plumbing

4.53(
631
)
Approved Pro

Chandler's Plumbing

4.53(
631
)
Approved Pro
Super Service Award
Customers say: Super punctual
473 local quotes requested
24 years of experience

We are the water heater and sewer experts of Santa Clara County offering free estimates, fair rates, and superior workmanship. Our team has been servicing the Bay Area for over 20 years. Our company is licensed, bonded, and insured. Our specialists are equipped, experienced, and provides a full range of services. We guarantee our work and can beat any quote by 10%.

"Efficient work and reasonable price"

XIANG G on December 2025

We are the water heater and sewer experts of Santa Clara County offering free estimates, fair rates, and superior workmanship. Our team has been servicing the Bay Area for over 20 years. Our company is licensed, bonded, and insured. Our specialists are equipped, experienced, and provides a full range of services. We guarantee our work and can beat any quote by 10%.

"Efficient work and reasonable price"

XIANG G on December 2025

...
Showing 1-10 of 252
Install Boiler questions, answered by experts

With proper maintenance, boilers last for around 15 years on average. A cast iron boiler may last longer, over 20 years, but you should always consider the efficiency of older boilers and opt to replace an old one if it’s significantly lower than newer, high-efficiency boilers. Otherwise, you’ll be spending more on your utility bills each month.

Most home boilers will need an expansion tank. That’s because these boilers are closed-loop systems, where the water is trapped. An expansion tank is needed when the boiler heats the water and it expands, allowing air to condense in the tank to make room for the water. Other types of boilers don’t use an expansion tank, such as traditional steam boilers, but these aren’t as common. And hot water tanks may be able to use a pressure release valve instead. When in doubt, call in a pro to take a look.

An expansion tank must always be installed on the supply side, which is the side where the boiler sends water out to heat the systems. That placement allows the water to push against the air and condense properly as it is heated, then circulated through the system. Professional installers can recommend the best place on the supply side for an expansion tank.

A heat pump is more efficient than a boiler system, making it a popular choice for many homeowners across the country. Still, the boiler reigns supreme, with 8 million in the United States alone. Many people favor boilers despite their lower efficiency because they carry a lower price tag and less intensive installation. It all depends on your home’s infrastructure, your personal heating priorities, and your budget.

If your boiler is 20 years old, it’s time to get a new one. Although it may seem to be working fine, it’s likely eating up more fuel than it should. Also, compared to a brand-new boiler, one that’s 20 years old is probably not working as well. When you get your new unit, you’ll notice that your home is heating more quickly, and the heat is consistent throughout all the rooms.

The Union City, CA homeowners’ guide to boiler installation services

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

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"