Our ProcessGet My Free Quote630-834-3456Trusted HVAC Experts in DuPage County
For 28 years, families like yours have trusted our union-trained techs for honest service, quiet systems, and comfort that lasts.
Save $4,400 with rebates & tax credits
Trusted HVAC Experts in DuPage County
For 28 years, families like yours have trusted our union-trained techs for honest service, quiet systems, and comfort that lasts.
Save 10% on repairs with a service plan.
Free WiFi thermostat + 10-year warranty with every install
Trusted By Homeowners In Dupage For 28 Years
Better Comfort, Quieter Systems, Lower Costs
Whisper-Quiet Comfort
Variable speed and communicating systems keep temperatures steady and quiet
Pure Indoor Comfort Air
Cleaner indoor air with filtration, purification, and humidity control
Right-Sized for Your Home
Right sized recommendations using Manual J, no pressure sales
28 Years of Family Trust
Family owned for 28 years, trusted by homeowners across DuPage
Everything You Need, From
Installs To Maintenance
Heat Pump Installation & Replacement
Everything You Need, From Installs To Maintenance
Central AC & Furnace Installation
Indoor Air Quality: Filtration, Humidifiers, UV
Seasonal Tune-Ups, Fast Repairs, And Maintenance Plans
Light Commercial HVAC Service
⭐ Join Our Plan For Priority Service, 10% Off Repairs, And
$25 Rebates On Tune-ups.
Why Choose K&j Heating & Cooling
Union Technicians
Highly Trained And Certified
Why Choose K&j Heating & Cooling
Available 24/7
All Your Emergency Hvac Needs.
Non-Commissioned
Recommendations That Put You First
Flat Rate Pricing
Clear And Transparent From The Start
400+ Five Star Reviews
Neighbors Who Call Us Their New Hvac Guy
Make The Smart Switch And Save
Limited-time rebates and tax credits — claim your savings before programs expire
in rebates and savings on qualifying high-efficiency heat pumps
federal tax credit available through 2026, eligibility required
instant savings on select new systems plus $400 rebate when available
warranty and free WiFi thermostat with installs
Small note: Rebates vary by equipment and eligibility. We handle all paperwork for you.
From Quote To Comfort, It’s Simple
Tune ups and safety checks keep your system efficient and reliable all year.
Call, book online, or request a quote
We size your home and recommend the perfect fit
Union techs handle everything, including rebates & warranties
Loved By Homeowners Across Dupage
Answers Before You Decide
1. How fast can you install?
Most standard installs are completed in 1 to 2 days.
2. Do I qualify for rebates and tax credits?
We check eligibility and complete the paperwork for you.
3. Which brands do you carry?
We recommend best-in-class equipment matched to your home and budget.
4. Will you help me pick the right size?
Yes, we use load calculations for proper sizing and comfort.
5. Do you offer financing?
Flexible options available on approved credit. Ask for details.
K&J Heating and Cooling 2025. All Rights Reserved.
Ready For Concierge-level Comfort?
Get a no-pressure quote from a family owned, union HVAC team.
Get Your Free Quote Today
Ready For Concierge-level Comfort?
Get a no-pressure quote from a family owned, union HVAC team.
DuPage’s Only Union HVAC Team With Non-Commissioned Techs
No Commissions, No Up-selling, Just Honest Service For Quiet, Efficient Comfort.
DuPage’s Only Union HVAC Team With Non-Commissioned Techs
No Commissions, No Up-selling, Just Honest Service For Quiet, Efficient Comfort.
