Top-rated boiler installation pros.

Best boiler installation pros near Wilmette, IL

Enter your zip and get matched with up to 5 pros

TRUSTED BY WILMETTE, IL HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon2.4k+
    Verified boiler installation services reviews

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

Avatar for Besco Air Inc
Besco Air Inc
4.7(
833
)
Gas Boiler or Radiator Heating System - InstallBoiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - Install+3 more

Serving Wilmette, IL and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

"We were impressed with Besco from the start. We called them to replace a 20-yr old furnace and A/C. Ed came to look over our situation and found that our A/C coils had frozen, causing water to collect in the bottom of the furnace. Ed asked for towels and mopped up the 1” of water himself. The quote for new Trane equipment was reasonable compared to other quotes for similar equipment and contained 3 options. Ed got the permits for us and installation went very well. Installers efficient and explained what we needed to know. In addition to the furnace, they removed old piping from a water softener long gone. They fixed the ducts and cleaned up nicely. We look forward to having Besco maintain the new equipment."
Additional Photos
14 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Shavitz Heating and Air Conditioning
Shavitz Heating and Air Conditioning
4.7(
417
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Wilmette, IL and surrounding areas

Approved

In business since 1904

Free estimates

Emergency services offered

"I’ve continued to hired Schavitz for all things A/C and furnace for my home due to their knowledge, honesty, and professionalism. This time met with Craig since he specializes in boiler systems and once again he exceeded my expectations with his knowledge and service. If you want complete transparency and the highest level of service then don’t hesitate to hire Schavitz. Don’t forget to ask about their membership plan.....discounts on annual services, parts, and equipment. Great deal!"
Response time10 hrs
Response rate100%
1 neighbors recently requested a quote
Avatar for Regional Plumbing Heating & Air
Regional Plumbing Heating & Air
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 Wilmette, IL and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"Prompt service with very little advanced notice. Technician removed old flame sensor and installed a new one in about 20 minutes. Pleased with technician and service, and will do business again them again if needed. Owner called to confirm service and sent a text with name and information about the technician before his arrival."
17 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for G & R Heating & Air
G & R Heating & Air
4.6(
139
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Wilmette, IL and surrounding areas

Approved

Super Service Award Winner

Free estimates

Emergency services offered

Warranties offered

"The installers were very knowledgeable and courteous, and the price was very reasonable as well. The furnace works great and the efficiency is already saving us on our energy bill. Very pleased, will use again in the future. They have great customer service and are very kind and courteous."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+20

Response time11 hrs
Response rate100%
148 neighbors recently requested a quote
Avatar for Legendary Service
Legendary Service
5.0(
27
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business

Serving Wilmette, IL and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"I just won a beautiful water heater from Legendary Service, and they were amazing. The installation was quick, easy, and clean. The owners came down personally to make sure everything went smoothly. Very nice people and I would definitely go to them for all my plumbing and heating needs!"
Reclaimed Mechanical Room
Reclaimed Mechanical Room
Response time2 days
5 neighbors recently requested a quote
Recommended by69%of homeowners
Avatar for Four Seasons Heating & Air Conditioning
Four Seasons Heating & Air Conditioning
4.3(
3,299
)
Boiler or Radiator Heating System - Install or ReplaceElectric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install+3 more

Serving Wilmette, IL and surrounding areas

Approved (Corporate)

In business since 1971

Free estimates

Emergency services offered

"Tim came out promptly, made a diagnosis and explained it so that I could understand, and arranged for a replacement the following day. David and David arrived the following day on time and, unfortunately there was 3 feet of snow blocking their path to getting my boiler out and the heavy cast iron boiler in. They worked together to shovel a path, and then worked continuously through the day until the job was done. David did a great job of explaining the workings of the boiler and left the place mess-free."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Response time9 hrs
44 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Cahill Heating, Cooling, Electric, Plumbing & Sewer
Cahill Heating, Cooling, Electric, Plumbing & Sewer
5.0(
8
)
Gas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business

Serving Wilmette, IL and surrounding areas

Approved

In business since 1973

Free estimates

Emergency services offered

"Miguel and his Cahill team were great! Very courteous and conscientious in regards to cleanliness and care in our home. Worked quickly and seamlessly as a team. Would recommend to anyone needing HVAC service or installation. Our salesperson Molly is great too!!"
Trane Heat Pumps
Project Showcase
Trane 96% modulating, communicating furnace
Trane
Carrier

+5

Response time9 hrs
Response rate100%
30 neighbors recently requested a quote
Avatar for Kwik Serv Plumbing Heating and Cooling
Kwik Serv Plumbing Heating and Cooling
4.8(
20
)
Gas Boiler or Radiator Heating System - Install

Serving Wilmette, IL and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job

Logo
May Special
0% Financing
2 neighbors recently requested a quote
Recommended by52%of homeowners
Avatar for ServiceMax
ServiceMax
4.5(
163
)
Boiler or Radiator Heating System - Install or Replace

Serving Wilmette, IL and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"MHC did great work while taking part in installing steam mixing stations in our company. Their response to our needs was just excellent. They worked long hours to meet projected completion time of a project and quality of their work was at highest level. I strongly recommended MHC to my fellow engineers at our company for incoming future projects."
 Mitsubishi MSY - 15000btu Indoor Unit
 Mitsubishi MUY Heat Pump - Outdoor Unit
 Mitsubishi 9000btu Indoor Unit - Wall Mounted
 Mitsubishi MXZ - 4 zone Heat Pump
 Mitsubishi MSY 9000btu Indoor Unit - Wall Mounted

+7

Recommended by97%of homeowners
...
Showing 1-10 of 201
Install Boiler FAQs, answered by experts

No, there isn’t always water in radiators. In a one-pipe system, water is constantly circulating from the boiler to the radiators and back. In a two-pipe system, water travels through two separate channels: one that goes to your radiators and one that returns back to the boiler so it can heat up again.

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).

In some cases, conversion kits are available, but not all boilers are compatible. Conversion may require significant modifications and should only be performed by a qualified professional. Before making a decision, compare conversion costs to the cost of a complete replacement to determine the most cost-effective and reliable option for your home.

A common HVAC rule is that for every 500 to 600 square feet of living space, you need 1 ton of heating or cooling capacity. Now that you know this common rule, you also need to know that it isn’t very accurate, and a dedicated pro wouldn’t use it for your home. If you talk to a pro who won’t or can’t perform a proper Manual J calculation, consider hiring someone more thorough.

Yes, you can build a sunroom addition to your home despite living in a cold climate. Make sure to use high-quality insulation and windows and to supplement with sufficient heating from your HVAC system. The windows in the sunroom allow enough natural light into the room to help heat it most times without having to use the furnace. Even a small electric fireplace can heat the sunroom well enough.

The Wilmette, IL homeowners’ guide to boiler installation services

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