Comfort You Can Count On. Year-Round.
Family-owned HVAC experts serving Holly and surrounding areas. Furnace & AC installs, repairs, boilers, water heaters — done right the first time.
We Service & Install It All.
From a single repair call to a full system replacement, our certified technicians handle every job with precision.
Furnaces
Install, repair & maintenance for gas, oil & high-efficiency furnaces.
Air Conditioning
Central AC, condenser repair and full-system replacements.
Mini Split Systems
Ductless heating and cooling for additions, garages and zoned comfort.
Boilers
Hydronic boiler service, repair and high-efficiency upgrades.
Water Heaters
Tank and tankless water heater install and replacement.
Air Quality
Humidifiers, dehumidifiers, and whole-home air cleaners.
Holly's Trusted HVAC Experts.
McAllister Heating and Air Conditioning is your go-to HVAC team in Holly, MI. We provide top-notch heating and cooling services that keep your home comfortable year-round — installation, repair, or maintenance, we've got you covered.
- Licensed & insured technicians
- Free, no-pressure estimates
- Weekend appointments available
- 24-hour emergency service
- 5.0 ★ rated by Holly homeowners
5.0 Stars on Google.
Real reviews from real Holly homeowners.
"10 star — any questions or problems with HVAC, this is the company I go to for help, hands down. Highly recommend for anything you need done with your heating and cooling needs."
"So happy I found someone knowledgeable and reliable that can work on boiler systems. Derek corrected numerous mistakes made by another company that did the install. Very thorough, explains everything well and does great work. Highly recommend!"
"Derek did a great job installing my new furnace in a very quick timeframe. He hauled the old one away and left my basement looking better than when he got there. Next step is the air conditioner. Thank you, Derek!"
"Very honest. He looked at a furnace issue I had and saved me $800 compared to another company that was upselling me. I've called him for years with any HVAC issues."
"Derek installed a new furnace and A/C unit in my condo. Fair price, good work, and responsive to questions and concerns. He's a hard worker and I would recommend him!"
"Very professional service. Does good work, honest and fair priced."
Free Estimates. Fast Response.
Call now or send a message — we'll get back to you the same day. Emergency? We're open 24 hours.