Furnace Repair
Expert Furnace Repair for Will County Homeowners
A broken furnace in an Illinois winter is an emergency. Lockport Heating's certified technicians are trained to diagnose and repair all furnace brands and models quickly and correctly. From ignitor failures to heat exchanger issues, we've seen it all and fixed it all since 1987.
Licensed & Insured
Fully certified technicians
24/7 Emergency Service
We answer when you call
5-Star Rated
Hundreds of happy customers
Est. 1987
Nearly 40 years of service
The Lockport Heating Difference
How We Work
Emergency Response
Call us anytime. We prioritize furnace failures, especially in winter months.
Full System Diagnostic
We inspect the heat exchanger, ignitor, burners, blower, controls, and flue system.
Transparent Estimate
You'll know exactly what's wrong and what it will cost before we start any work.
Precision Repair
We repair your furnace with quality parts and verify full operation before leaving.
Frequently Asked Questions
Why is my furnace blowing cold air?
Common causes include a dirty air filter, faulty ignitor, tripped limit switch, or issues with the pilot light or flame sensor. Our technician can diagnose the exact cause quickly.
My furnace turns on and off repeatedly — what's wrong?
This is called short cycling and can be caused by a dirty filter, overheating, a faulty thermostat, or a cracked heat exchanger. It should be addressed promptly to prevent further damage.
How long does a furnace repair take?
Most furnace repairs can be completed in 1-3 hours. If a part needs to be ordered, we'll provide a timeline and temporary solutions if possible.
Is it worth repairing an old furnace?
If your furnace is under 15 years old and the repair cost is reasonable, repair is usually the right choice. We'll give you an honest recommendation based on your specific situation.
What Our Customers Say
"Lockport Heating has been servicing our furnace for over 10 years. Their technicians are professional, knowledgeable, and always on time. Highly recommend!"
Michael T.
Lockport, IL
January 2025
"Our furnace went out on the coldest night of the year. Lockport Heating had a tech at our door within 2 hours. Incredible service — truly a lifesaver."
Sarah K.
Joliet, IL
February 2025
"I've used several HVAC companies over the years, but none compare to Lockport Heating. Fair prices, honest assessments, and quality craftsmanship every time."
Dave R.
Plainfield, IL
December 2024
Ready to Schedule Service?
Our expert technicians are standing by. Same-day service available.
Serving Lockport, Joliet, Plainfield, New Lenox & all of Will County, IL