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Best boiler installation pros near San Antonio, FL

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TRUSTED BY SAN ANTONIO, FL HOMEOWNERS

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    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 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

"Excellent. They installed the system 3 months ago. Today the system shut down due to a fluid back up when I was cleaning the drain line. The technician came out within 2 hours and promptly got the system up and running and checked the drain line. He also installed a new end to the drain line outside the house."
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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

"Tim and dan know water and how to treat the issue at hand. Used them about 8 years ago at my previous house (which has had no issues since installation). So had them come out to assess and correct my water issues at my new house. They were very fair, friendly and prompt. I would highly recommend them!"
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+3

Recommended by94%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 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

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

If you hear your radiator clanking even when it’s turned off, it’s typically because there’s trapped water or air in the system, causing a pressure buildup. When you hear significant clanking, popping, crackling, or banging in a radiator that’s turned off, you’ll want to bleed the pipes or call in an HVAC specialist to deal with the problem (and prevent it from happening in the future).

The main difference between an outdoor wood furnace versus an outdoor wood boiler is what each appliance is heating. An outdoor wood furnace burns wood to create heat, which warms the air and moves it through the ducts in your home. An outdoor wood boiler uses the heat from burning wood to warm water, which goes through pipes to radiators in the home.

Since your boiler keeps you warm and provides hot water to your home, you’re likely to notice issues with heating in your living space right away. The most obvious sign that your boiler is breaking is not getting any heat or hot water. You might also hear some odd sounds coming from your boiler during operation, the flame in your gas boiler is not blue, the pressure is inconsistent, or your boiler is using more energy than it should. If you notice any of these signs, be sure to call a pro right away.

No, boilers and water heaters are not interchangeable because they serve different primary functions. Boilers are used for central heating systems, providing hot water or steam to heat your home. In contrast, a water heater's purpose is to supply hot water for daily household use, such as for faucets and showers. A water heater alone cannot supply the warm water or steam needed for a central heating system.

While they are not interchangeable, it is common to have both a boiler and a water heater. In fact, a conventional boiler often works best when a water heater system is already in place. The two systems can be combined to provide both heating and hot water, either by pairing a boiler with an indirect water heater or by installing a premade combination boiler-water heater unit. For home heating, some homeowners may also opt for a furnace instead of a boiler.

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.