Top-rated boiler installation pros.

Best boiler installation pros near Andover, CT

Enter your zip and get matched with up to 5 pros

TRUSTED BY ANDOVER, CT HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon370
    Verified boiler installation services reviews

Top-Rated Boiler installation pros in Andover - Updated Nov 2026

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

Serving Andover, 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 Omni Mechanical Services, LLC
Omni Mechanical Services, LLC
4.3(
15
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Andover, CT and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Juan responded quickly on a Sunday afternoon. He was very knowledgeable and fixed the broken part. Fortunately, Juan had the part in his truck and was able to get my furnace working again. The service was impeccable! However, the weekend rates are expensive the service cost me $699 for installation of a $70 part. The 2-hour service call was $500 ($249 per hour)."
Response time2 days
2 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for HARP Home Services LLC
HARP Home Services LLC
4.5(
488
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Andover, CT and surrounding areas

In business since 1992

Free estimates

Emergency services offered

"HARP sent a rep to the house, he did the evaluation for sizing, which was in line with the sizing tools I used. The solution he offered was just about what I had picked out, and I went with his recommendation. The install went fine. They did have to be reminded to retape some ducts, but we're happy to take care of it."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+9

Recommended by93%of homeowners
Avatar for Griswold Plumbing Services, LLC
Griswold Plumbing Services, 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 Andover, CT and surrounding areas

In business since 2009

Emergency services offered

Credit card accepted

"Excellent from start to finish. Called early morning and left message with service. They called back shortly after opening and confirmed appointment. They showed up at the expected time and quickly and professionally fixed the leaking pipe. In addition they made time to look at waste line and aging boiler to provide estimates."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+9

Recommended by93%of homeowners
Avatar for Apex Refrigeration Cooling and Heating
Apex Refrigeration Cooling and Heating
5.0(
14
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business+1 more

Serving Andover, CT and surrounding areas

In business since 2015

Free estimates

Emergency services offered

"I had APEX install ductless mini splits in my house. Ive used them previously on other HVAC work, and I love the knowledge and expertise they bring. One of the main reasons why I continue working with them is their professionalism. Before I discovered them I was using a company out of downtown Hartford that used to send drug atticâ s to my house. With Apex you have nothing to worry about. Quality work, good pricing, and professional."
Response time30 mins
Recommended by100%of homeowners
Avatar for SETPOINT REFRIGERATION LLC
SETPOINT REFRIGERATION LLC
4.9(
9
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Andover, CT and surrounding areas

In business since 2023

Free estimates

Emergency services offered

"We had an electrical issue with our furnace and no one could figure it out. 5 contractors failed to locate and correct the issue. Dave came out and quickly diagnosed the problem and was able to remedy the situation in a timely fashion. The furnace still works great to this day."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+27

Response time1 day
Response rate100%
Recommended by87%of homeowners
Showing 1-10 of 42
Install Boiler FAQs, answered by experts

Boilers provide even heating, energy efficiency, and a quiet operation compared to forced air systems.

The radiators closest in proximity to the boiler heating system will heat up first. Radiators in rooms farther away from the boiler will take longer to heat up and may be the coolest rooms in the house. The radiator unit itself should heat up evenly; otherwise, there may be trapped air inside it.

Costs depend on system size, efficiency rating, and additional features like zoning or smart controls.

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.

Many HVAC companies offer free quotes and free estimates for repairs and new HVAC systems. Others offer low-cost quotes or apply the cost of the estimates or diagnostics to your final bill if you hire them. Be aware that some companies advertise free HVAC quotes and recoup the costs by charging more for their services. Free HVAC quotes are never truly free—they cost the company time and effort—so be a good customer. Also understand that you may end up paying for free quotes in another way if you don’t hire a reputable company.

The Andover, CT homeowners’ guide to boiler installation services

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