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Best boiler installation pros near Sunnyvale, CA

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    Average homeowner rating
  • Verified reviews icon1.8k+
    Verified boiler installation services reviews

Top-Rated Boiler installation pros in Sunnyvale - Updated Nov 2026

Avatar for Valley Heating, Cooling, Electrical and Solar
Valley Heating, Cooling, Electrical and Solar
4.7(
1,755
)
Boiler or Radiator Heating System - Install or Replace

Serving Sunnyvale, CA and surrounding areas

Approved

In business since 1962

Free estimates

Emergency services offered

"Steve was in a word, AWESOME. He was punctual, courteous, knowledgeable, he went above and beyond to check out our system and tell us what's going on with the zone heating system. He investigated the furnace, A/C, ducting, venting, and fixed a mis-installed vent, climbed up the ladder to the high vents and attic spaces to check the ducting was sound. He took the time to give me a detailed report and answer my questions, and advice how to maximize the heat. What a work ethic! I couldn't have asked for better service or technical advice. Oh, and that booster fan recommended by the other hvac company at the cost of $1300? Steve informed me that's completely unnecessary and actually works against our goal of heating the house in our case. Anytime I have a heating or AC issue, I'll call Valley and ask for Steve by name. Thanks Steve!"
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We provide HVAC sheet metal fabrication, blown in insulation with Owens Corning’s new AttiCat™ Expanding Blown-In PINK FIBERGLAS® and Solatube® installations to add light where you need it without the increasing your electric bill.
The SunSource® Home Energy System puts you in control of your monthly bills by creating and using solar energy, reducing your need for electricity from your utility provider.
Owners, Jeff and Cindy Faulkner
8 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for DUKES HEATING & AIR CONDITIONING
DUKES HEATING & AIR CONDITIONING
4.8(
135
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Sunnyvale, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Great. They contacted me right away. It wasn't an emergency but Iti was cold, so they still came first thing on the first business day. The technician explained what he was doing and why the prior repair done by somebody else probably failed. The rate was reasonable. It's been a couple of days and it seems the furnace is working, so everything good so far."
Heat Pump Repairs & Installations
Central Air Cut-Ins
Electric Furnace Repairs & Installations
Response time1 day
Response rate100%
32 neighbors recently requested a quote
Avatar for Comfort Energy Inc
Comfort Energy Inc
4.6(
120
)
Gas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business

Serving Sunnyvale, CA and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"I'm super glad I took advantage of this offer. James Hayden came out to my house and did a thorough inspection on my furnace that was probably from 1970. He had the tools and equipment to be thorough, and I found him super knowledgeable and friendly. James found very high CO levels in my exhaust and recommended that I not run the system until we got this resolved. For the safety of my family, I'm so glad he had the tool to measure CO levels, and that he identified the safety problem."
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+12

Response time1 day
Response rate100%
11 neighbors recently requested a quote
Avatar for Lorenzo Heating & Cooling
Lorenzo Heating & Cooling
5.0(
1
)
Gas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business

Serving Sunnyvale, CA and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

AC on roof
AC/FURNACE REPLACEMENT
Heat Pump Mini Split
Air Handler
Air Handler

+8

Response time1 hour
Response rate91%
Avatar for HVAC Utor Services
HVAC Utor Services
5.0(
31
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Sunnyvale, CA and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"Diego and his crew are exactly what you would wish for when you need an hvac related service. After over 10 calls to other companies Rachel and Diego were the only ones willing to work with us on a time restricted job. We sold our house and needed work done on our furnace for the new buyers. They are always available when you call them, and the job gets done when they say it will be. Price quotes were straight forward and reasonable compared to other finished job prices I see listed here. Loved them so much I recommended my mother in law use them to replace her heat/ac units in her big house where we temporarily live, another positive review to come!"
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+24

Recommended by100%of homeowners
Avatar for Bell Brothers Plumbing Heating & Air
Bell Brothers Plumbing Heating & Air
4.6(
401
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Sunnyvale, CA and surrounding areas

In business since 1954

Free estimates

Warranties offered

"Sal from ABC Cooling and Heating came a day after I called the company (I got an appointment with them 5 minutes after sending the email requesting an appointment). He was professional and pleasant. He explained to me how to clean the filters in my furnace and how to install them back in place, thus saving me $200. I appreciated his advice, as I really didn't want to spent that money on him simply just washing the filters, a do-it-yourself job, if the home owner is able to do it. At the end, we were able to replace a bad capacitator and figure out that the compressor worked just fine with this new part. I paid $234 for the capacitator, $59 for the home visit and labor and got 10% off as a member of Angie's list. I am not sure if it was a good price or not for the capacitator (I didn't check prices online), but I was perfectly happy with the job and Sal. I think that $59 was a good price for the labor, considering that you have to pay this fee anyways for the diagnostic/home visit."
AIR CONDITIONING REPAIR
The AC repair company in Sacramento and the East Bay who gets it done right the first time.

When you need an air conditioning repair, you deserve on-time service, upfront pricing, and friendly technicians that you’re comfortable having in your home. At Bell Brothers, we’ve been doing exactly that for 30 years.
There comes a time in the life of any furnace and heating system when continuing to repair and maintain it is no longer cost effective.

We can install a new, more energy-efficient heating system that keeps you comfortable and saves on energy costs. You’ll love the guarantees we give with every furnace installation, including:

Installation Workmanship Guarantee
‘No Lemon’ Guarantee
Guaranteed Upfront Quotes
AIR CONDITIONING REPLACEMENT
When you need a new air conditioning system, it’s not the time for guessing if you’re getting the best replacement experience. You need to know FOR SURE.
WATER HEATER REPAIR OR REPLACEMENT
No hot water in your home? Is there leaking, dripping, or staining around your water heater? Don’t panic. But don’t wait either. Call Bell Brothers, Sacramento and the East Bay’s top-rated water heater repair & replacement company.
Air Conditioning Service, Repair, & Installation With REAL Guarantees & NO Surprises. 
We have 9 guarantees, and all of them are in writing. This kind of protection is true peace of mind:

Homeowners love our No Surprise Guarantee: the price we quote is the price you pay. You’ll never have to be worried about being shocked by the final invoice. We have other great guarantees, too:

+5

Recommended by94%of homeowners
Avatar for Green Apple Duct Cleaning
Green Apple Duct Cleaning
5.0(
18
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Sunnyvale, CA and surrounding areas

In business since 2016

Free estimates

Credit card accepted

"Great! Tony called in advance & was very prompt. Personable and professional, he quickly hooked up his equipment and let the machines do their work, which took about 30 minutes for our 1400 SF house. He took photos of the intake duct so we could see their condition. I will be scheduling a manual deep cleaning of the whole system next!"
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+18

Recommended by100%of homeowners
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Install Boiler FAQs, answered by experts

The cost-efficiency of baseboard heaters depends on the type and how you use them. Generally, standard electric baseboard heaters can be expensive to run because they use electric resistance heating, which is less energy-efficient than systems like forced-air or heat pumps. However, hydronic and gas versions are typically much cheaper to operate. Hydronic models are more energy-efficient because they heat a liquid that retains warmth longer, preventing the thermostat from turning on and off as often. The overall running cost is also influenced by local electricity rates, your home's insulation, and your usage habits. To increase efficiency, you can use baseboard heaters for zoning, meaning you only heat the specific rooms you are using.

If you’re looking for a way to heat your home that is lower in cost and higher in efficiency, you should run the numbers to see what it would look like to switch to gas or electric heat. The best choice for how to heat your home depends on your location, budget, and energy priorities.

Radiators are a popular home heating choice in older homes, but they are becoming less common in new-construction homes. According to a 2022 report by Elements Visual Capitalist, only around 1.3% of new single-family homes have radiators and similar heating systems, such as baseboard heating.

While they may not be as popular as they once were, radiators today come with more energy-efficient features that can make them practical for modern homeowners.

The cost of propane and related services varies depending on tank size and location but generally ranges from $500 to $2,500 for installation and initial fill.

Most installations take 2-5 days, including old system removal and setup.

The Sunnyvale, CA homeowners’ guide to boiler installation services

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