Top-rated boiler installation pros.

Best boiler installation pros near San Antonio, FL

Enter your zip and get matched with up to 5 pros

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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+16

Response time11 hrs
Response rate100%
4 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."
Additional Photos
Additional Photos
Ierna's Company Photo
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.
"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+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."
.
Additional Photos
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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+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
...
Showing 1-10 of 94
Install Boiler FAQs, answered by experts

Safety concerns with propane boilers include proper venting to prevent carbon monoxide buildup, secure gas line connections, and regular inspection of safety controls. Professional boiler installation and annual maintenance are essential to minimize risks. Having a carbon monoxide detector installed in your home is essential for early detection of any leaks or ventilation issues.

Warmed or cooled air can escape your home through drafty windows and doors. If you notice any gaps, be sure to caulk and seal them. You can also hire a local pro for an energy audit to get a list of energy-saving recommendations. 

Finally, check your insulation. It can settle in over time and become less effective. The Environmental Protection Agency (EPA) estimates that you can save an average of 15% on heating and cooling costs (or 11% of total energy costs) by sealing leaks and making sure attics, crawl spaces, and basements have a nice layer of insulation.

Overall, heating your home with an oil furnace tends to be less expensive than heating your home with an electric heating system. Oil heating systems stay warm for longer periods of time without drawing a constant electrical current to maintain a temperature. Plus, heating oil systems typically have a longer lifespan and lower price tag than their electrical counterparts, resulting in short- and long-term savings.

Due to fuel line connections and venting complexity, professional installation is required for safety and efficiency.

Deciding whether or not to replace radiators with a different heating system depends on your personal preferences. Radiators can take longer to heat up than a central heating system, and they take up floor space. However, they can be very efficient at heating, and they keep rooms at a more comfortable humidity level in the winter than forced-air systems.

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.