Lemont's Trusted HVAC Professionals

Precision climate control
for every season

From emergency furnace repairs to full-scale commercial refrigeration installations, Thermocool HVACR delivers reliable comfort solutions across the Lemont community and beyond.

Schedule Service

Or call us directly (773) 658-5692

HVAC technician performing system maintenance

15+ Years Experience

24/7 Emergency Service

100% Satisfaction Guarantee

What We Do

Comprehensive climate solutions for home and business

Every system we touch is handled with the same standard of care — whether it's a residential furnace or a commercial walk-in cooler.

Heating Systems

Furnaces, heat pumps, and boiler services keeping your space warm when it matters most.

Furnace repair & replacement
Heat pump installation
Boiler maintenance
Emergency heating service

Cooling & AC

Central air, ductless mini-splits, and cooling system repairs that restore comfort fast.

Air conditioner repair
Central AC installation
Ductless mini-split systems
Refrigerant recharge

Refrigeration

Commercial and residential refrigeration — from walk-in coolers to display cases and ice machines.

Walk-in cooler repair
Display case service
Ice machine repair
Commercial refrigeration

Indoor Air Quality

Duct cleaning, filtration systems, and humidity control for healthier, cleaner air indoors.

Duct cleaning & sealing
Air purifier installation
Humidifier services
Filter replacement programs

Emergency Repairs

HVAC failures don't wait — and neither do we. Rapid response when comfort can't wait.

24/7 emergency availability
Fast response times
Weekend & holiday service
Transparent pricing upfront

Residential HVAC

Complete home comfort solutions — from single-unit replacements to whole-home system design.

System replacements
Seasonal tune-ups
Energy efficiency upgrades
Smart thermostat installs

Thermocool HVACR service vehicle and team

15+ Years Serving
Lemont & Surrounding Areas

About Us

Rooted in Lemont,
focused on your comfort

Thermocool HVACR was founded on a simple belief: your home's climate system deserves the same attention to detail as any other critical part of your house. We're a locally owned and operated company right here in Lemont, and we treat every job — big or small — with that same standard.

Our team brings decades of combined experience across residential heating, cooling, and commercial refrigeration. We're licensed, insured, and committed to honest, straightforward service — no upselling, no surprises, just reliable work done right the first time.

Licensed & Insured Fully credentialed technicians who meet the highest industry standards.

Upfront Pricing Clear, honest estimates before any work begins — no hidden fees.

Local & Trusted Proudly serving Lemont and the greater southwest Chicago suburbs.

Guaranteed Work Every repair and installation backed by our satisfaction guarantee.

Why Choose Us

The Thermocool difference

Expert Technicians

Our team is factory-trained and continuously updated on the latest HVAC technologies and efficiency standards.

On-Time, Every Time

We respect your schedule. Arrive windows are communicated clearly, and we call ahead so you're never left waiting.

Fair & Transparent

Detailed written estimates before work starts. We explain what's needed and why — no pressure, no jargon.

Warranty Protected

All work comes with a warranty. Parts and labor are covered so you can have peace of mind long after we leave.

Get In Touch

Ready to restore comfort to your space?

Whether you need a quick repair or a full system installation, our team is ready to help. Reach out today for honest advice and competitive pricing — no obligation.

Call (773) 658-5692

Phone (773) 658-5692

Address 621 4th St
Lemont, IL 60439-4113

Hours Mon–Fri: 8am – 6pm
Sat: 9am – 2pm
Emergency: 24/7

Precision climate control for every season