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Top-Rated Furnace / forced air heating system install or replace pros in La Grange - Updated Nov 2026

Avatar for Home Comfort Systems Inc
Home Comfort Systems Inc
4.9(
315
)
Gas Furnace / Forced Air Heating System - InstallBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+43 more

Serving La Grange, IL and surrounding areas

Approved

In business since 1972

Free estimates

Emergency services offered

"The owner, Steve, came out and explained everything and more that I should be aware of regarding the replacement of the 26 year old furnace and Air conditioning units. He was a pleasure to work with and the price quote was more than acceptable. I did accept and within the week the crew arrived to do the installation. Al and Damien were very professional and the work was extremely well done. They finished that same day and when they left it was if the new units had always been there. I was extremely impressed and will certainly go back to them for future maintenance. You can't go wrong with this company!"
Additional Photos
Response time8 hrs
Response rate100%
10 neighbors recently requested a quote
Avatar for VENT HEATING & COOLING INC.
VENT HEATING & COOLING INC.
4.8(
46
)
Gas Furnace / Forced Air Heating System - InstallBoiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For Business+17 more

Serving La Grange, IL and surrounding areas

Approved

In business since 1979

Free estimates

Emergency services offered

"I found Vent on Angi and called them early Saturday. Jim Facetimed with us in order to diagnose the problem. He called twice over weekend to see how we were. He called early Monday to set a time. Showed up about 9 to check the problem. Came back around 1 and got the furnace going. Jim was on time, polite, knowledgeable, conscientious."
Additional Photos
Additional Photos
Response time9 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for Four Seasons Heating & Air Conditioning
Four Seasons Heating & Air Conditioning
4.3(
3,298
)
Ducts & Vents - Install or ReplaceGas Furnace / Forced Air Heating System - InstallBoiler or Radiator Heating System - Install or Replace+43 more

Serving La Grange, IL and surrounding areas

Approved (Corporate)

In business since 1971

Free estimates

Emergency services offered

"We decided to replace an outdated AC unit and furnace with a brand new heat pump and furnace. After speaking with a Four Seasons sales rep, we knew they were the best choice to go with due to their thorough assessment, knowledge of products, availability of service and overall transparency. And perhaps most importantly, they were not pushy and respect our decisions on what system we felt was best for our home. As with any expenditure of this nature, there will be some ironing out of details and inevitable bumps to get everything completed, but the overall experience amounted to an energy-efficient HVAC system that was installed with care and expediency. Their service technicians are also friendly, thorough, knowledgeable, and available at a moment's notice. We are so glad that we went with Four Seasons."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Response time9 hrs
25 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Phoenix HVAC, LLC
Phoenix HVAC, LLC
4.8(
64
)
Gas Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install - For BusinessGas Furnace / Forced Air Heating System - Repair+8 more

Serving La Grange, IL and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"On time, professional, and great customer support by Maggie. As far as value, they are definitely more expensive than some others we quoted, but you get what you pay for. We had our furnace and AC and water heater replaced by the Phoenix crew in Dec 19 and everything is still working well. Keep up the good work guys!"
Staging and Wrapping Ductwork
Staging and Wrapping Duct Work
Installation
OUR WORK
OUR WORK

+21

Response time9 hrs
Response rate92%
4 neighbors recently requested a quote
Discovery Heating & Cooling, Inc.
4.6(
80
)
Furnace / Forced Air Heating System - Repair or ServiceGas Boiler or Radiator Heating System - InstallGas Furnace / Forced Air Heating System - Install+1 more

Serving La Grange, IL and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"The boiler had needed some replacement pipes as well as the solution to the slight smell of gas when near the boiler itself. Prior to calling for service for these issues, I had removed the majority of the damaged piping and purchased all new of what I was able to remove. I couldn't remove the bushing that attaches directly to the boiler or the nipple that attached to that bushing to save my life. On the night prior to the day of my appointment, there was a snow storm and time moved ahead. I had forgotten to move my clocks ahead that resulted in my arriving about 20 minutes late. The repairman was kind enough to not only wait for my arrival, but to shovel part of the snow from my walkway that leads to the basement. This guy is just great. He removed the fused together bushing and nipple in no time flat. It was amazing for me to watch. I had to pick up a couple more pieces of pipe for my job to be completed and we scheduled to continue after I did so. Luckily, The pipe I needed was in stock and he was able to return the very next day, he removed my bushing and nipple, installed ALL of my pipes, and provided and replaced my leaking gas line. MY BUILDING NOW HAS HEAT AND I COULDN'T BE HAPPIER!!! Now I have to have the other parts of the building repaired that were damaged from when the boiler had stopped working and a pipe had burst. You won't be disappointed if you hire Discovery Heating and Cooling. If I have another related job in the future, I will definitely call Discovery. Thanks again Discovery."
Response time8 hrs
Recommended by87%of homeowners
Avatar for Affordable American Air
Affordable American Air
4.8(
68
)
Electric Furnace / Forced Air Heating System - RepairElectric Furnace / Forced Air Heating System - Repair - For BusinessGas Furnace / Forced Air Heating System - Repair+2 more

Serving La Grange, IL and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Great experience, called me within 5 minutes of posting because my furnace wasnâ t working. Very knowledgeable, explaining options and left decision to me. Started right away and finished installing new furnace same day, although it did take quite a bit longer than estimated."
Ecobee installed
Ecobee installed
Ecobee 4 display pictures
Ecobee with voice control
Unit heater with sub panel

+21

Response time3 hrs
3 neighbors recently requested a quote
Recommended by95%of homeowners
Midwest Climate Control
4.4(
87
)
Gas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - RepairThermostat - Install or Replace+16 more

Serving La Grange, IL and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"Don came out & fixed the issue with the gas leak coming out of the furnace within 15 minutes. He then helped with my Nest thermostat that reset & wasn't turning back on. He was very courteous & knowledgeable."
Response time2 days
18 neighbors recently requested a quote
Recommended by92%of homeowners
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FAQs for furnace / forced air heating system install or replace projects in La Grange, IL

Converting from an oil furnace to an electric furnace isn't a simple swap—the oil system needs to be completely removed before installing the electric furnace. You'll need a full electric system installation, but you might be able to reuse existing ductwork if it's up to current safety standards. You’ll need to budget for a new electric furnace installation, which costs between $1,800 and $6,200, including professional removal, proper disposal, and safe installation of the new system.

Electric furnaces are 100% efficient at converting electricity into heat. However, some of that heat can be lost as it travels through your home's ductwork or escapes through poorly insulated areas. That's why regular duct maintenance and proper home insulation are important to maximize your furnace's efficiency and reduce heat loss, ensuring consistent warmth and lower energy costs.

With proper maintenance, an electric furnace can last anywhere from 20 to 30 years, outlasting the average gas furnace's lifespan of 15 to 20 years. To keep your electric furnace running efficiently, schedule regular cleanings, tighten connections, and have inspections done before winter arrives. With routine maintenance, you’ll ensure consistent, safe heating for years to come.

The size of the electric furnace you need depends on factors like your home's square footage, climate, and insulation quality. As a general guideline, those who live in warmer climates should multiply their square footage by 30 to 35 BTUs, while those in cooler areas should multiply it by 50 to 60 BTUs.

Consulting with an HVAC professional can help you determine the exact size that's right for your home.

An electric furnace works by converting electricity into heat using high-resistance heating elements. A blower then pushes the warm air through your home's ductwork, distributing heat evenly throughout your space. Since there's no combustion involved, electric furnaces eliminate the risks associated with gas furnaces and provide consistent, reliable heating when properly installed.

An electric furnace uses between 40 and 80 kilowatts per day to heat your home. The exact amount it uses depends on factors like your home's size, insulation, and overall energy requirements. Larger homes or those with poor insulation use more energy than smaller, well-insulated spaces. A professional furnace assessment can help confirm the ideal unit size for your needs.

The La Grange, IL homeowners’ guide to furnace / forced air heating system installs or replaces

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