Installing a new high-efficiency furnace is one of the best investments for your New Lenox home. Proper sizing and professional installation for reliable heat through every Illinois winter.
When it's time to replace an aging furnace or install heating in a new space, Heavy Duty Heating & Cooling provides expert furnace installation throughout New Lenox and Will County. High-efficiency gas furnaces from top brands, correctly sized and professionally installed.
A correctly sized furnace makes all the difference in New Lenox winters. We perform proper load calculations and provide a full warranty on parts and labor for every installation.
Proper Manual J heat load calculation ensures your new furnace is exactly the right size for your New Lenox home.
96%+ AFUE gas furnaces that significantly reduce heating costs in Illinois winters.
We inspect ductwork for leaks before installation to ensure efficient heat delivery throughout your home.
Proper gas line connection and flue venting following all Illinois safety codes.
Compatible thermostat — including smart options — installed and configured for your new furnace.
Full system test and combustion analysis to confirm safe, efficient operation before we leave.
Same-day & emergency service in New Lenox and Will County.
Free estimates, no hidden fees, upfront quotes before work begins.
English & Spanish service for all New Lenox customers.
Fully licensed, certified, and insured HVAC professionals.
Local business treating every New Lenox customer like a neighbor.
We stand behind every job with a satisfaction guarantee.
New furnace installations typically range $2,500–$5,500 installed, depending on unit and any ductwork needs.
Most residential installations complete in one day, including removal of the old unit.
We install all major furnace brands and recommend the best option for your needs.
Furnaces over 15–20 years old or requiring frequent expensive repairs are typically better replaced.
Based in Joliet — serving Will, Cook & DuPage Counties, IL.