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Find Furnace / forced air heating system install or replace pros in Dekalb

Avatar for G & R Heating & Air
G & R Heating & Air
4.5(
124
)

Serving Dekalb, IL and surrounding areas

Approved

Super Service Award Winner

Free estimates

Emergency services offered

Warranties offered

"Dwayne from G & R Heating & Air did a very thorough job checking our AC system. He verified everything was in good working order. Dwayne was professional, courteous and friendly. I ended up purchasing the service contract."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+20

Response time11 hrs
112 neighbors recently requested a quote
Recommended by73%of homeowners
Avatar for Perfect Temp Heating & Cooling
Perfect Temp Heating & Cooling
4.6(
198
)

Serving Dekalb, IL and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"Dave was very nice and professional. Gave me a fair estimate for a new system. Brett and Jake assessed the problem and determined that there was no problem contrary to what I was told by Temperature Docs "your system is fried, your only recourse is to buy a new furnace and air conditioner" for nearly $7,000! My air condtioner started working with a tweak of a knowing plier. I was not charged a repair cost only for the service call /diagnostic which was very reasonable. I asked Brett if my system looked "fried" and he said no. I was more than relieved that the situation was remedied so easily and economically. I was impressed by everyone's professionalism and most of all honesty. I would recommend this company to anyone need heating and cooling assistance. Best of all it is veteran owned!"
Duct Cleaning
Duct Cleaning
Duct cleaning
Duct cleaning
Duct cleaning

+79

Response time10 hrs
33 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Summers, Plumbing, Heating & Cooling - Yorkville
Summers, Plumbing, Heating & Cooling - Yorkville
5.0(
15
)

Serving Dekalb, IL and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

At Summers Plumbing Heating & Cooling we try to make service easy & fast! With all of our locations there is a good chance we're helping someone in your neighborhood with their plumbing, heating or cooling issues. We take the stress out of calling a repairman! Our friendly, helpful, and honest technicians are here to make your life easier, not harder than it already is.\n\nOur highly skilled, licensed, and trained technicians perform superior work, every time. We are committed to being honest, thorough, and friendly when we arrive at your house for an estimate or repair.

Avatar for G & R Heating and Air, LLC
G & R Heating and Air, LLC
4.6(
1,128
)

Serving Dekalb, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Emergency services offered

"Emergency. Furnace went out overnight. Woke up freezing. Called G&R Heating. They (Adam), responded within one hour. Furnace couldn't be repaired - provided quote that was acceptable and accepted immediately. New furnace (and air conditioner) was installed within 4 hours. Total lapse of time from waking up to a cold house to new furnace (and air conditioner) was 5-1/2 hours. Excellent and superior customer service. I now have the heat back and am toasty and warm again. Great work G&R."
New 16 seer A/C
Old A/C
Old furnace
New Furnace
Water heater Installation

+1

Response time2 hrs
Response rate91%
263 neighbors recently requested a quote
Avatar for Miracle Mechanical Corp.
Miracle Mechanical Corp.
5.0(
14
)

Serving Dekalb, IL and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"From start to finish, the HVAC installation went smoothly. The crew arrived on time, protected our floors, and explained each step of the process in plain language. They completed the job quickly, cleaned up thoroughly, and walked us through how to use and maintain the new system. The new unit runs quietly, cools/heats the house evenly, and has already made a big difference in our comfort and energy bills. I would absolutely recommend them to anyone needing a new HVAC system."
Project Photos
Project Photos
Project Photos
Project Photos
Project Photos

+15

Response time5 hrs
Response rate100%
9 neighbors recently requested a quote
Avatar for Improved Comfort Heating & Air Conditioning
Improved Comfort Heating & Air Conditioning
5.0(
9
)

Serving Dekalb, IL and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"I had an excellent experience with this HVAC company! They installed 3 central A/C units in my building, and everything was done professionally and efficiently. Special thanks to Angel and Martin for their great work, professionalism, and attention to detail. Highly recommend!"
Boiler Replacement
Response time9 hrs
22 neighbors recently requested a quote
Avatar for Delta Heating & Air
Delta Heating & Air
4.3(
3
)

Serving Dekalb, IL and surrounding areas

Approved

In business since 2016

Free estimates

Offers commercial services

Committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

Hillside furnace repair
Hillside furnace repair
Avatar for Imperial electric
Imperial electric
5.0(
13
)

Serving Dekalb, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"The service guy came out very quickly. Had a smart thermostat installed. He walked me through setting up the app. Did a fast and a great job. I highly recommend this company if you want it done and done right."
132 neighbors recently requested a quote
North South Heating and Cooling
New to Angi

Serving Dekalb, IL and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!\n

1 neighbors recently requested a quote
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Showing 1-10 of 116

FAQs for furnace / forced air heating system install or replace projects in Dekalb, 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 Dekalb, 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.