Top-rated boiler installation pros.

Get matched with top boiler installation pros in Guilford, CT

Enter your zip and get matched with up to 5 pros

TRUSTED BY GUILFORD, CT HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.4k+
    Verified boiler installation services reviews

Find Boiler installation pros in Guilford

Avatar for Atlantic Water Heater Pros
Atlantic Water Heater Pros
4.8(
51
)
Gas Boiler or Radiator Heating System - Install

Serving Guilford, CT and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"Williams & Associates installed a Buderus oil-fired boiler and stainless-steel chimney liner. Bruce's design was a significant upgrade over my 35-year-old boiler system. He clearly explained the process and installation, and he was receptive to my questions. Bruce is knowledgeable, straightforward, and responsive. The price was very fair, considering the quality of the work and other estimates I had gotten. I would not hesitate to recommend Williams & Associates."
Large Mechanical Room
Response time1 day
Recommended by92%of homeowners
Avatar for Tyler Heating, Air Conditioning and Refrigeration LLC
Tyler Heating, Air Conditioning and Refrigeration LLC
4.6(
132
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Guilford, CT and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"They came quickly to assess my situation and provided an estimate on the spot, in writing. When I had a follow up question, they returned to see my existing boiler again. On the date selected for installation, their people arrived on-time and were organized and polite. Their price was comparable to the other quote I received, but I feel their service was better than the other company."
Carrier Ductless Heat Pump Condenser
Carrier Performance Ductless Heat Pump High Wall Air Handler
Additional Photos
Additional Photos
Additional Photos

+172

Response time2 days
Response rate100%
4 neighbors recently requested a quote
Avatar for MTL Heating & Cooling
MTL Heating & Cooling
4.7(
142
)
Gas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For BusinessOil Boiler or Radiator Heating System - Install+1 more

Serving Guilford, CT and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Mike contacted me within minutes of my request. It was the day after the coldest day we've had and we thought we would have to wait for an appointment. I explained that we had no heat Mike told me that he could have someone over within 2-3 hours. He told me what the cost would be which was very reasonable. Joe arrived as scheduled, fixed the problem and cleaned up the area. Within 2 hours our boiler was back up and running. I would highly recommend Mike and MTL and we will be using them to service our boiler for our future needs"
 Viessman boiler oil to gas conversion Orange
Peerless oil boiler/Amtrol indirect water heater
 Navien Boiler oil to gas conversion Stratford
Day & Night gas furnace New Haven
 Peerless gas boiler West Haven

+4

Response time8 hrs
Recommended by98%of homeowners
Select Mechanical Services, Inc.
4.5(
58
)
Oil Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallElectric Boiler or Radiator Heating System - Install+2 more

Serving Guilford, CT and surrounding areas

Approved

In business since 2014

Emergency services offered

Credit card accepted

"Gary (owner), Brian and Bill did an excellent job replacing our propane gas furnace. Good pricing, speedy service, new furnace installed in 24hours from first visit, quote in February during supply chain issues, no easy feat, and replaced with a quality name brand. Don't hesitate to hire them if your system stops working."
Response time1 day
88 neighbors recently requested a quote
Recommended by90%of homeowners
Frisco Mechanical LLC
5.0(
16
)
Gas Boiler or Radiator Heating System - InstallOil Boiler or Radiator Heating System - Install

Serving Guilford, CT and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

Frisco Mechanical is dedicated to providing our clients with the very best in installation, service, and repair for your heating and cooling needs. Our company is built on honesty, integrity and transparency. We specialize in central Air Conditioning and cooling systems as well as all types of heating and furnace systems. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

4 neighbors recently requested a quote
...
Showing 1-10 of 62
Install Boiler questions, answered by experts

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.

Installing a boiler requires training, a specific skill set, and extensive experience. Boiler installation can be extremely dangerous, as it involves working with water lines, gas lines, and electricity. For this reason, it’s strongly recommended that you hire a professional to install your boiler. Some states even consider it illegal to work on a boiler without the proper licensing.

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.

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.

Costs range from $3,000 to $7,500, depending on system size and efficiency.

The Guilford, CT homeowners’ guide to boiler installation services

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