Frankfort Same-Day Furnace Repair and Installation Services



Special Promotions on Furnace Services in Frankfort
Disclaimer: Coupons may only be redeemed one time per household, and they cannot be combined with any offers or discounts. You must present or mention the coupon prior to any services performed. Discounts are not valid for trip charges or diagnostic fees.
Common repair, installation, and maintenance questions
A licensed and trained professional must complete a furnace installation. Installations require proper knowledge of gas lines, electrical wiring, and venting systems.
Hiring an expert ensures that every step is completed correctly and meets all local safety codes and standards. An installation done wrong could be more than a minor inconvenience; it could do serious damage to your home or endanger the safety of your family.
In Illinois, the cost of replacement typically ranges from $3,000 to $18,000, depending on the home size, the type of furnace, and the installation’s difficulty. Higher-efficiency models or additional ductwork can increase the price.
Routine maintenance includes checking and replacing filters, cleaning burners, inspecting thermostat and pilot light, and ensuring the blower motor is running as it should. A professional maintenance tech will maximize your equipment’s efficiency and lifespan.
Yes, in most cases a new unit installation can be carried out in a single day. However, the actual duration required really depends on what type you’re installing and the complexity of the installation.
In the case of furnace replacements, time must also be allotted for the demolition and disposal of the old unit. Our installation pros will always give you a full estimate, including timing, before getting to work.
Services Membership provides what every home needs
No interest & no payments for 18 months
INTEGRITY’S MISSION
Be the BEST Illinois HVAC Service Company by making happy customers with total effort every time each customer.
Committed to training and mentoring each employee for the noble purpose of performing at their best level professionally & personally.
We provide exceptional service every time for your needs in any situation.
Our Guarantees
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100% Satisfaction Guarantee
Two year, 100% Satisfaction Guarantee or your money back.
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EPA certified technicians
Integrity only uses factory-trained, EPA certified technicians. Subcontractors are never used.
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Integrity NO LEMON GUARANTEE
Integrity will replace your entire furnace unit free of charge if your heat exchanger fails within 25 years of the installation date.
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24 hour HVAC Service Guarantee
24 hour HVAC Service Guarantee: we will respond to your call and repair your heating or cooling problem within 24 hours, or we will put you in a hotel for the night.

Customer REVIEWS

Emergency furnace repair. Serving Frankfort, IL for 25+ years.
Nobody has days to wait around for emergency repairs, especially in the winter. That’s why we specialize in offering 24-hour repair service. Our dispatchers are available to receive your repair calls 24 hours.
Don’t mess around with those other companies that only claim to offer 24-hour services. Our dispatchers are always standing by.
In most cases, we’ll have an emergency furnace repair tech at the door of your residence within 2 hours, anywhere in and around Frankfort, IL. If you need a replacement, we keep units in stock to ensure you’re up and running quickly!
Emergency furnace repair. Serving Frankfort, IL for 25+ years.

Furnace installation made easy, backed by 500+ 5-star reviews
When the moment comes for a new furnace installation for your home, you need a service that shares your priorities. Our installation technicians begin each job with a clear upfront estimate for both cost and time to completion, so you’re never left wondering.
We’ll have someone come out to you and assess the situation, offer a complete rundown of our recommendations, then get right to work. In the case of a furnace replacement, we’ll even handle the disposal of your old equipment.
See for yourself why more than 500 Illinois residents have gone online to rate our service with “five stars.”
Furnace installation made easy, backed by 500+ 5-star reviews

Annual furnace maintenance can make your unit operate more efficiently and last longer
While most units are said to last 12-20 years, that range is not a guarantee. In order to ensure that your unit lasts as long as it possibly can, regularly scheduled maintenance services are highly recommended—ideally at least once per year.
When you call for maintenance, we’ll send one of our pros out to your Frankfort, IL residence to clean out all the debris from your system, change filters as necessary, and ensure proper air flow and safety standards.
The maintenance work we do is essential to achieving optimal energy efficiency and to ensuring that your system lasts as long as it possibly can.
Annual furnace maintenance can make your unit operate more efficiently and last longer

Trusted by Chicagoland for over 25 years.
Other Cities We Serve
- Batavia
- Clarendon Hills
- Crystal Lake
- Darien
- Downers Grove
- Glen Ellyn
- Glendale Heights
- Joliet
- La Grange
- Lemont
- Lisle
- Lombard
- Oak Forest
- Oak Lawn
- Oak Park
- Oswego
- Palos Hills
- Park Forest
- Park Ridge
- Plainfield
- Rolling Meadows
- Villa Park
- Westmont
- Wheaton
- Woodridge