- 5.0 Rating on Google
- Trusted By Homeowners & Businesses
Trusted HVAC Contractor in Caseville MI for Homes and Businesses
- Licensed & Insured
- Michigan Mechanical #7118084
Your comfort matters. We’re the HVAC company in Caseville MI that shows up, fixes it right, and keeps it honest.
Request Your Comfort Diagnosis
What Local Homeowners Say
Services We Offer as Your Local HVAC Technicians
As your go-to residential HVAC Technicians, we bring real solutions to real homes. And as a commercial HVAC Technicians, we help businesses stay up and running too.
Heating Installations
We install high efficiency furnaces, boilers & heat pumps to keep your home warm & comfortable. We also handle custom ductwork if needed
Cooling Installations
We install central air conditioning systems and mini-splits built for Michigan summers. Quiet, efficient, and done right the first time.
Emergency HVAC Repairs
If your heat goes out in winter or your AC fails during a heatwave, we’re one call away. We handle emergency repairs fast.
Maintenance and Seasonal Tune-Ups
Our team checks your system, cleans components, and keeps everything running smoothly before the weather changes.
System Diagnostics
We pinpoint what’s wrong before we replace anything. It saves you time and money.
Water Treatment
We install iron filters, water softeners, and reverse osmosis systems. Free water testing included.
What It's Like to Work With Us
We Listen
We ask questions, get to know your home, and never push what you don’t need.
Clear Recommendations
You’ll get options that match your home and your budget—with zero pressure.
Honest Work, Every Time
Our licensed team shows up, gets it done right, and leaves your space clean.
Offers That Make a Difference
with up to 15-year terms and no money down
Why Homeowners Choose Us
We’ve been doing this since 2006. Our experience is hands-on. Our team is licensed, insured, and friendly. When you call us, a real person answers. When we show up, we get the job done right.
Licensed and insured HVAC Contractor
100+ Years of Combined Experience
Based in Caseville and Trusted Across the Thumb
Quick, Clear Communication
Always Honest, No Pushy Upsells. No Mystery Fees.
Work Done Right the First Time
We know how important heating and air is Michigan homes. You shouldn’t have to wait days for help. We respond fast and work clean.
About The Climate Doctor
The Climate Doctor was founded in 2006 by Stephen Rathje, a local expert who started in HVAC thinking it was just a job but soon found a calling. With over 20 years of hands-on experience, Stephen built the company focusing on advanced technology, honest work, and true care for the community.
He still works directly with customers every day. You might see him at your door, clipboard in hand, explaining what’s going on in plain language. We’ve served thousands of homes across the Thumb and continue to grow because we stand behind every job like it’s our own home. If it has a flame, fan, or filter, we can fix it, and we’ll treat you right while we’re at it.
Meet the Climate Doctor Team
Steve Rathje
What started as a “get by” job 20 years ago turned into a passion for solving problems and mastering high-tech HVAC. Steve built The Climate Doctor to bring advanced heating and cooling knowledge to the Thumb, you could say he’s earned his PhD in HVAC.
April Rathje
The friendly voice on the phone and the brains behind the schedule. Whether she’s lining up jobs, sorting the books, or crawling under a house, April keeps The Climate Doctor running smooth as a fresh coat of ice on Saginaw Bay.
Chris Heck
With over 20 years in the trades, Chris can size up a heating or cooling job faster than a Michigan storm rolls in. From furnace to A/C, if it needs installing, Chris makes it run like a charm.
Tim Olson
With 20+ years keeping Michigan homes comfy, Tim’s the guy who can diagnose and fix a furnace or A/C before your coffee’s done brewing. Repairs, tune-ups, and knowledge you can count on.
Corey Messing
Part consultant, part installer, and full-time problem solver. With 20+ years in heating, cooling, and plumbing, Corey keeps the ship steady when Steve and April are away, and makes sure your home stays just right.
John Smith
The blueprint doctor of the shop. From planning layouts to crafting ductwork, John makes sure every system breathes right. With over 40 years in plumbing and HVAC, John’s knowledge is priceless.
Nehemiah Messing
Over 6 years with The Climate Doctor, Nehemiah, AKA “Nemo”, has been tackling everything from heating and cooling to water treatment and the trickiest installs. If it’s a tough job, he’s the guy who makes it look easy.
Merlin Rathje
Office guardian, snack thief, and professional counter surfer. Since day one, Merlin’s been keeping spirits high and the office safe, usually from his post under April’s desk.
We also stay involved in the community through events like SummerFest and the Cheeseburger Golf Outing.
Helpful Tips & Expert Advice
Why Water Softeners Matter in Rural Michigan Homes
Mini-Split vs. Central Air: Which is Right for You?
Signs Your Furnace Might Be Failing
Frequently Asked Questions
Are you licensed and insured?
Yes—Michigan Mechanical License #7118084. We’re fully insured.
Do you work weekends or emergencies?
We take weekend appointments and respond to after-hours HVAC emergencies.
What areas do you serve?
All across the Thumb, including Caseville, Pigeon, Bad Axe, Sebewaing, Elkton, and more.
Do you offer financing?
Yes! We partner with GoodLeap: $0 down, up to 15-year terms, and no early payoff penalties.
