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Best boiler installation pros near San Antonio, FL

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TRUSTED BY SAN ANTONIO, FL HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon1.4k+
    Verified boiler installation services reviews

Top-Rated Boiler installation pros in San Antonio - Updated Nov 2026

Avatar for A Breath Of Fresh Aire
A Breath Of Fresh Aire
4.7(
187
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving San Antonio, FL and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Ken Marcus, the technician who performed the work, was highly professional and courteous. He completed the work in the time frame promised, including the recommendation and installation of a germicidal unit inside the air handler. Ken indicated that the germicidal unit was 99.9% effective in the killing and removal of mold, spores and bacteria from the A/C system. This would be of great help in the improvement of air quality inside the home, as well as prolong system life. Ken cleaned up thoroughly when the job was completed."
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+16

Response time11 hrs
Response rate100%
6 neighbors recently requested a quote
Avatar for Fontana Brothers Heating & Air Conditioning
Fontana Brothers Heating & Air Conditioning
5.0(
37
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving San Antonio, FL and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"Fontana Brothers installed my new Bosch HVAC system, and I couldn’t be happier with the experience. Freddie and Shaquille arrived exactly on time, worked efficiently, and left the work area cleaner than it was before they began. Their attention to detail and professionalism were outstanding. As a Realtor for more than 30 years, I’ve dealt with many HVAC companies, and Fontana Brothers continues to be one of the very best. They consistently deliver excellent service to both me and my clients, and their pricing remains highly competitive. I trust them completely with my referrals. Special thanks to Dan Fontana, who heads the service department — always organized, responsive, and helpful — as well as the entire office staff, who are consistently friendly and a pleasure to work with. I will absolutely continue to recommend Fontana Brothers to others seeking HVAC installation, repair, or replacement."
Response time1 day
14 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for IERNA's Heating & Cooling
IERNA's Heating & Cooling
4.6(
718
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business+2 more

Serving San Antonio, FL and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"Great installation Team. Professional, meticulous and very personable. They came on time and worked all day to replace my 18 year old system with a top of the line highly efficient system. They cleaned up everything and left it spotless. They even vacuumed the small amount of dust they made installing new thermostat in house. I am nosy with these kind of things. They answered every question politely and thoroughly when I asked them. During the installation, every time I went to see how things were going, they were hard at work constantly. I HIGHLY recommend Ierna."
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MOE Group Photo
MOE Logo

+5

Recommended by92%of homeowners
D AND C AIR AND WATER
4.8(
63
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving San Antonio, FL and surrounding areas

In business since 2006

"Dan and Tim are a super team.  They investigated, quoted, ordered, delivered and installed the water system which turned our well water in to holi-water.  Love their sense of humor, and their way of doing their job, and at the end of the day I am very happy.
"
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+3

Recommended by94%of homeowners
Avatar for Air 4 U Air Conditioning and Heating Inc.
Air 4 U Air Conditioning and Heating Inc.
4.9(
21
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving San Antonio, FL and surrounding areas

In business since 2006

Free estimates

Emergency services offered

"Steve showed up and first filled the unit with nitrogen to see if the leak could be located that way. Since the leak was so small and was located under some line insulation it was not evident. Step 2 was to vacuum out Nitrogen and replace with Freon and dye. We ran the unit for 24 hours and then Steve came back the following day and found the leak from the dye. He then had to repair the hole and then refill the system with coolant again after another deep vacuum.  
All in all he was very professional and he told me from the very beginning how much the cost would be and stuck to that exact price to the penny. Steve is definitely one of the most honest tradesmen in the business and I will definitely be using him again when it comes time to replace my ageing AC unit.
"
Recommended by95%of homeowners
Avatar for Kelly Plumbing LLC
Kelly Plumbing LLC
4.8(
53
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving San Antonio, FL and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Plumber was prompt and arrived when scheduled.  He unclogged my bathroom pool toilet.  He then gave me a price for the installation of a laundry tub.  He came the next day and neatly broke through the garage wall to get to the pipes to be able to install  the laundry tub.  This precise cutting of the sheetrock made it possible for my husband to reinstall it  without any problem.  I would recommend this company and will use them again."
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Recommended by97%of homeowners
Avatar for Cornerstone Air, Heating, Plumbing & Electrical
Cornerstone Air, Heating, Plumbing & Electrical
4.5(
1,735
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving San Antonio, FL and surrounding areas

In business since 2006

Free estimates

Emergency services offered

"Perfect solution to a bad situation. Discovered a leaking water heater on a 3-day Holiday Weekend; expecting the worst. HOWEVER, phone call to Cornerstone around noon on Saturday; immediately answered by a friendly voice; informed that someone would be out to fix the problem , today. Within two hours Todd S. was here to install new water heater. He was Personable, Professional and Courteous. Perfect ending to a bad situation."
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+21

Recommended by86%of homeowners
Avatar for True Integrity
True Integrity
5.0(
15
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving San Antonio, FL and surrounding areas

In business since 2012

Free estimates

Credit card accepted

"Patriot installed everything as quoted, plus some unexpected issues which arose after quote. Installation was done in very professional manner, extremely clean installation. All debris and old equipment removed. Very professional contractor. Went above and beyond my expectations for installation. Would HIGHLY recommend if you need AC repair or replacement."
Recommended by100%of homeowners
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Install Boiler FAQs, answered by experts

If you're often struggling with radiator issues like chilly spots, leaks, or annoying noises, those are common indications that your radiator may need to be replaced. Corrosion, uneven heating, and persistent hissing sounds are common issues as well. When repairs become a regular chore and your home’s energy bills start to rise, a new radiator will bring the comfort and savings you need.

If you want a new boiler that’s going to help lower your fuel bills, you should buy one that has a high energy-efficiency rating. For example, a boiler that is rated “A” uses at least 90% of the energy created by the boiler. And in order to enjoy the best performance, it’s important to have it installed properly by a highly-rated tech.

Chilled water HVAC systems use water instead of traditional components and refrigerants. They're more common in commercial settings than residential ones but are slowly being adopted by some homebuilders to cool homes. As the name implies, the system keeps the water chilled at 40 degrees and circulates it through water coils. The water absorbs the heat from your home and drains outdoors. Condo apartments are more likely to have chilled water HVAC than single-family homes because this system is designed to cool several rooms or large areas individually.

Unless they are connected to the same system, boilers and water heaters will both need their own expansion tanks. The only case they wouldn’t have separate expansion tanks is if the boiler is pulling double duty and managing a heating system while also supplying hot water for a home. In which case, you may not need a hot water heater.

A furnace is a big unit where gas, heating oil, or electricity heats the air. The warmed air is then pushed back out through ducts and vents. 

A boiler uses electricity, heating oil, or gas to heat water that is pushed into the room through a radiator. This is one of the oldest and most effective ways to heat a house, but radiators can also be unsightly and leave hot and cold spots in the room.

Heat pumps use a refrigerant to move heat from outside into the house and return it to the room through ducts and vents.

The San Antonio, FL homeowners’ guide to boiler installation services

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