Installing a new AC system is a major investment. Our certified technicians ensure your new system is properly sized and optimized for your Lemont home or business.
A correctly sized AC system is the key to comfort and low energy bills in Lemont, IL. Heavy Duty Heating & Cooling provides expert AC installation for homes and businesses throughout Lemont and Cook County.
Every installation starts with a free in-home assessment for correct system sizing. Our licensed technicians handle the full installation — ductwork, electrical, testing — with a satisfaction guarantee.
Correct AC sizing for your Lemont home using Manual J calculations — not guesswork.
Full installation of split-system central AC from top brands, optimized for your home.
We inspect existing ductwork for leaks and damage that could reduce your new system's efficiency.
Ductless systems for homes without ductwork, additions, or rooms needing independent climate control.
All electrical work and permits required for new AC installation in Lemont, IL handled for you.
Full system test and thermostat walkthrough before we leave your Lemont home.
Same-day & emergency service in Lemont and Cook County.
Free estimates, no hidden fees, upfront quotes before work begins.
English & Spanish service for all Lemont customers.
Fully licensed, certified, and insured HVAC professionals.
Local business treating every Lemont customer like a neighbor.
We stand behind every job with a satisfaction guarantee.
New central AC typically runs $3,000–$7,000 installed. We provide free estimates.
Most installations complete in one day.
We install all major brands and recommend the best option for your needs and budget.
Contact us to discuss payment options available for Lemont area customers.
Based in Joliet — serving Will, Cook & DuPage Counties, IL.