Ernst Heating & Cooling
Service is in our blood.
“Ernst” is German for “earnest”, which means sincere and intense conviction. It also means:
- Urgency – we respond fast when you have a breakdown.
- Diligence – we take the time to get the job done right.
Time to Youngerize your AC!
For only $125
- Extend the Life of your AC
- Save on your Energy Bills
- Prevent Breakdowns
- Get More Comfort
Our Services
State-of-the-Art Service.
Old-Fashioned Care.
For more than 70 years, families have trusted Ernst Heating & Cooling to keep their homes comfortable. Al Ernst – farm kid, fixer, and all-around problem-solver – opened a small hardware and appliance shop in Hamel, Illinois in 1951.
He built the company the same way he built everything else: with his hands, his grit, and a promise to treat every customer like a neighbor.
Today, that spirit is still alive in everything we do. Ernst remains family-owned, locally grounded, and committed to honest work—just like Al intended. But we’ve also embraced the latest and best technology to make your experience faster, smarter, and more precise.
We Do the Right Thing for the Customer
Every time
The Ernst Comfortizer Plan
- Guarantees you Same Day Service
- Makes your AC and Furnace work better and last longer
- Saves you tons of money on energy bills
- And more . . .
All for just $16 per system per month.
The Right-Sized System with LiDAR Technology
You can save thousands of dollars by having the right-sized heating and air conditioning system. It also makes your home far more comfortable and increases system life by years (saving you even MORE money).
Most companies over-estimate the size of system you need. We use LiDAR to scan your home, calculate load requirements, and design systems with engineering-level accuracy. No guesses. No shortcuts. Your system fits your home perfectly—because we measured it perfectly.
Flat-Rate Pricing. Zero Surprises.
We believe in telling you the price before the work begins. No vague “hourly estimates.” No mystery fees. Just clear, honest numbers you can trust.
Real Consultations. Not Sales Pitches.
At Ernst, we slow down and ask questions.
We listen.
We want to understand your home, your comfort habits, and your concerns.
Whether we’re repairing a furnace or designing a system from scratch, we take the time to get it right—because that’s how our family has always done it.
We Treat Your Home Like Our Grandma’s
No mess. No rush.
Just thoughtful service from people who care.
Ernst is a GE Authorized HVAC Pro
- That means you get GE perfect service and installation, from all the training our technicians receive.
- You can also get discounted financing, extended warranties and genuine GE parts delivered fast, so it’s easy to stay comfy.
A Legacy Built by Three Generations
Al Ernst built the company through the 50s and 60s—installing furnaces, digging crawl spaces, fabricating ductwork, and learning every trade skill the hard way.
Roger Ernst returned to Hamel in 1977 to expand the company, adopting new technologies like heat pumps, partnering with Lennox, and growing Ernst into a regional HVAC leader.
Today, Dusty Ernst leads the company with the same values his grandfather started with—paired with modern tools, top-tier training, and a commitment to protect the legacy that built this community staple.
Three generations. One mission:
Do the right thing for the customer. Every time.
We don’t do bare minimum “tune-ups”. . .
Magical Ernst technicians only do Youngerizers!
- Making your system younger (blow stronger & last longer)
- Saving you tons of money on repairs and replacements
- And save more money on energy bills
- And more . . .
