Top-rated boiler installation pros.

Best boiler installation pros near Key Largo, FL

Enter your zip and get matched with up to 5 pros

Need a pro for your boiler installation project in Key Largo, FL?

Select your specific project to find the pro for you.

TRUSTED BY KEY LARGO, FL HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon92
    Verified boiler installation services reviews

Verified Reviews for Boiler Installation pros in Key Largo, FL

*The Angi rating for Boiler Installation companies in Key Largo, FL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.

*The HomeAdvisor rating for Boiler Installation companies in Key Largo, FL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.

Last update on October 12, 2026

Top-Rated Boiler installation pros in Key Largo - Updated Nov 2026

Avatar for Y&D General Remodeling and Repairs Inc
Y&D General Remodeling and Repairs Inc
4.6(
373
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Key Largo, FL and surrounding areas

In business since 2007

Free estimates

Credit card accepted

"Great communication with Y&D. They were punctual and professional. Extremely helpful and knowledgeable. We had them install lighting, patch concrete, caulk our bathrooms and touch up our garage ceiling where the popcorn was peeling. They did a good job. Definitely will call them again."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+55

Recommended by90%of homeowners
Request Quote
Avatar for Centry Air Designs
Centry Air Designs
4.9(
14
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Key Largo, FL and surrounding areas

In business since 1986

Free estimates

Emergency services offered

"It went great - I needed a whole new system and they installed it all, super quickly, no problem."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+8

Recommended by100%of homeowners
Request Quote
Core Mechanical
4.4(
28
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Key Largo, FL and surrounding areas

In business since 2004

Emergency services offered

Credit card accepted

"Called the company on a Sunday. They arrived on Monday to give me the bad
news I had expected.  My 15 year ole A/C unit had finally died.   Later that day
I received an estimate which I accepted.  The new unit was installed on Thursday
of the same week.
 
The Monday they arrived it was very hot (when else do A/C's die). They
offered and I accepted a portable A/C loaner.  Fast response.  Professional
service. Friendly and capable people.
"
Additional Photos
Recommended by87%of homeowners
Request Quote
Avatar for North Alabama Technical Services
North Alabama Technical Services
4.9(
124
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Key Largo, FL and surrounding areas

In business since 2010

Emergency services offered

Credit card accepted

"Great job. Quick, thorough and effective. All done remotely...
Would recommend and use again.
"
2014 Super Service Award Winner!
Additional Photos
Recommended by97%of homeowners
Request Quote
Hallmarc, Inc.
5.0(
5
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Key Largo, FL and surrounding areas

In business since 2006

Free estimates

Emergency services offered

"It went exceptionally well! Marc was able accommodate us within an hour of our call to him.  He was courteous, professional, and knowledgeable. He was very thorough in his diagnosis of the problem, and  ordered the necessary parts immediately. Once the parts came in the next morning, he phoned to check our availability and was able to  come back and install the parts that very morning. Upon completion, prior to leaving, he ran a test of the system to assure that it was working properly.  Marc was even conscientious enough to clean up the area before he left.  His price on parts and labor were fair within industry standards. We would highly recommend him for his services."
Water Heater Install
Insulation
Insulation
Recommended by100%of homeowners
Request Quote
Avatar for Prometheus Painting LLC
Prometheus Painting LLC
4.6(
11
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Key Largo, FL and surrounding areas

In business since 2016

Free estimates

Pressure/Soft Wash - Plastering - Waterproofing - Painting - Sealing - Kitchen Cabinet Remodel.\nLicensed/Insured - Interior/Exterior\nCall us for a free quote (786)487-0749

Painting - Exterior Project
Painting - Exterior Project
Palmetto Bay Residential
Painting - Interior Project
Painting - Exterior Project

+120

Recommended by90%of homeowners
Request Quote
Avatar for Paramount Home Technologies
Paramount Home Technologies
4.1(
85
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Key Largo, FL and surrounding areas

In business since 1980

Free estimates

Emergency services offered

"Really great, Seth and his installer were amazing. They had deep knowledge of the audio video industry and were polite, professional and friendly. Would def recommend them to any of my friends or family."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+17

Recommended by85%of homeowners
Request Quote
Avatar for Choice Home Warranty
Choice Home Warranty
4.0(
5,678
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Key Largo, FL and surrounding areas

In business since 2008

Emergency services offered

Credit card accepted

"The serviceman did a great job in installing the new burner. Did it with ease."
Recommended by81%of homeowners
Request Quote
All around plumbing
4.4(
8
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Key Largo, FL and surrounding areas

In business since 2003

Free estimates

Emergency services offered

We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Call or click to schedule a free estimate today!

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+18

Recommended by100%of homeowners
Request Quote
Avatar for MU Mechanical Contractor
MU Mechanical Contractor
5.0(
5
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Key Largo, FL and surrounding areas

In business since 2021

Free estimates

Emergency services offered

We have the experience and dedication to bring get the job done right! Specializing in Heating and Air Conditioning services, we guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click to schedule a free estimate today!

Heating & A/C Project
Heating & A/C Project
Heating & A/C Project
Mini Split Heat Pump not cooling. PCB board failure.
Wall A/C Installation

+50

Recommended by100%of homeowners
Request Quote
Showing 1-10 of 28
Install Boiler FAQs, answered by experts

If you go to turn it counterclockwise and it won’t turn anymore, it’s open. Like most other valves, you should be able to turn a radiator valve counterclockwise (to the left) to open it and clockwise (right) to close it. To close a radiator valve, turn it clockwise until you meet some resistance and can’t turn anymore, but do so carefully to avoid breaking the valve.

Costs depend on unit size, labor, fuel type, and whether additional piping or venting is needed.

Generally, an oil furnace is considered safer than a gas furnace for several reasons. While both types of furnaces can produce carbon monoxide, a leak in an oil furnace is easier to detect due to the smell. Oil furnaces also don't connect to a gas pipeline, which reduces the chance of a fuel leak. Most importantly, heating oil is not combustible, whereas natural gas is highly flammable. This means there is a much lower risk of combustion or explosion with an oil furnace. However, an oil furnace can still pose a fire hazard if it tips over.

When winter rolls around, and you turn the heat on for the first time in a year, it’s normal to sense a light odor. This could smell a little like burning because some dust has gathered in the heating unit over the warm months and will fade away shortly after. However, there are some smells you should watch out for and take caution around: an egg-like sulfur smell or an electrical burn odor would indicate there’s something wrong. Turn it off and call a professional for maintenance as soon as possible. 

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.

The Key Largo, FL homeowners’ guide to boiler installation services

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

See all articles