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

Avatar for All Temp Heating & Air Conditioning Inc
All Temp Heating & Air Conditioning Inc
4.6(
433
)
Gas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Repair+14 more

Serving Libertyville, IL and surrounding areas

Approved

In business since 1946

Free estimates

Emergency services offered

"They made 3 service visits before recommending a new one. I was already peeved by the multiple service visits that we paid for but their price point was decent for the furnace installation. They were all nice enough and it was nice that they thought they could fix the furnace instead of us having to buy a new one, but over $300 later and it still didn't work.  I will only use them again to keep the warranty on the furnace.
"
Additional Photos
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+2

Response time3 days
Response rate100%
19 neighbors recently requested a quote
Avatar for Shavitz Heating and Air Conditioning
Shavitz Heating and Air Conditioning
4.7(
417
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+43 more

Serving Libertyville, IL and surrounding areas

Approved

In business since 1904

Free estimates

Emergency services offered

"We decided to use Shavitz Heating & Air Conditioning as the company for the install of our new furnace. What impressed us about Shavitz was their employees. They made the entire process a positive experience. Everyone that interacted with us had a friendly and professional demeanor. It started with the sales visit by Will Gutierrez who was a pleasure to deal with. He provided us with several options while never pressuring us to lean one way or another. He was patient with us and answered all our questions. His courteous approach gave us a positive view of the company he represented. The installing technician, Linas, and the tech that was assisting him only continued this professional trend. They both were equally as courteous. Once the work was complete, Linas made sure he answered all of our questions and that we felt comfortable with the operation of our new furnace and humidifier before he left. His patience was very much appreciated. He also made sure the area were the work was done was clean and all trash removed. Will Gutierrez followed up with us a few days afterwards to make sure all was well, and that we were pleased with the work and our new purchase. Our answer was a definite, yes."
Response time10 hrs
Response rate100%
1 neighbors recently requested a quote
Avatar for AMERICAN FAMILY HEATING AND AIR CONDITIONING
AMERICAN FAMILY HEATING AND AIR CONDITIONING
4.9(
72
)
Gas Furnace / Forced Air Heating System - InstallDuctless Mini-split Heating System - Install or ReplaceDucts & Vents - Install or Replace+16 more

Serving Libertyville, IL and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"Nothing but good things to say about American Family Heating and Cooling - highly recommended. Tim was friendly and professional on the phone, and quoted all charges up front. Nick came out and had a great combination of informal but professional demeanor. And no objection to me looking over his shoulder as he worked!"
Response time20 mins
Response rate100%
11 neighbors recently requested a quote
Avatar for Cahill Heating, Cooling, Electric, Plumbing & Sewer
Cahill Heating, Cooling, Electric, Plumbing & Sewer
4.8(
33
)
Gas Furnace / Forced Air Heating System - InstallDucts & Vents - Install or ReplaceOil Boiler or Radiator Heating System - Install+43 more

Serving Libertyville, IL and surrounding areas

Approved

In business since 1973

Free estimates

Emergency services offered

"Cahill installed my new furnaces in a professional manner and the units work very well. The annual service is thorough and complete. I am confident that the units are well maintained and not just given a cursory service. Installation of the ducts was done quickly and professionally and their advice helped me make the right decisions. They showed up to perform the work at the agreed time and completed the work efficiently. I didn't have to allocate a block of hours during which they might show up -- as with most service companies. I'm very pleased with this company."
Furnace Installations
Heat Pump Installations
Furnace Installations
Additional Photos
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+7

Response time8 hrs
12 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Regional Plumbing Heating & Air
Regional Plumbing Heating & Air
5.0(
15
)
Gas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - InstallBoiler or Radiator Heating System - Install or Replace+43 more

Serving Libertyville, IL and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"The technician arrived within a half hour of our initial call. Although he did not have the part on hand he made a quick trip to their service center and returned immediately with what he needed. The technician was prompt, professional, and knowledgeable. I feel it's also worth mentioning that the technician is also a combat veteran who served multiple tours overseas and is in the process of becoming a licensed plumber. I think it says a lot about a company who hires veterans. I'll never call anyone but Regional Plumbing and Heating for the types of services they provide."
17 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Four Seasons Heating & Air Conditioning
Four Seasons Heating & Air Conditioning
4.3(
3,298
)
Gas Furnace / Forced Air Heating System - InstallDucts & Vents - Install or ReplaceElectric Furnace / Forced Air Heating System - Install - For Business+43 more

Serving Libertyville, 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."
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Response time9 hrs
44 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 Libertyville, 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%
3 neighbors recently requested a quote
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FAQs for furnace / forced air heating system install or replace projects in Libertyville, 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 Libertyville, 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.