Furnace Replacement
High-Efficiency Furnace Installation in Will County
When it's time for a new furnace, Lockport Heating makes the process seamless. We help you choose the right high-efficiency system for your home and budget, then install it with the craftsmanship our customers have trusted since 1987. Financing available.
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
Free In-Home Assessment
We evaluate your home's heating needs and existing ductwork to recommend the right system.
Equipment Selection
We present options at different price points and efficiency levels with honest recommendations.
Professional Installation
Our certified technicians install your new furnace to manufacturer specifications.
Testing & Training
We test the complete system and walk you through operation of your new furnace.
Frequently Asked Questions
How do I know what size furnace I need?
Furnace sizing requires a Manual J load calculation based on your home's square footage, insulation, windows, and climate. We perform this calculation for every installation to ensure proper sizing.
What AFUE rating should I choose?
Standard furnaces are 80% AFUE. High-efficiency models are 90-98% AFUE. The higher the rating, the more efficient — we'll help you calculate the payback period for your situation.
How long does furnace installation take?
Most furnace replacements are completed in one day, typically 4-8 hours depending on the complexity of the installation.
Do you offer financing for new furnaces?
Yes! We offer flexible financing options including 0% interest plans for qualifying customers. Ask us about current promotions when you call.
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