Est. 1984 · Helena, Montana
Keeping Helena Warm Since 1984.
Four decades of honest work, fair prices, and showing up when it matters — including 2am in January.
Montana's HVAC company. Not a franchise. Not a call center. Us.
All Season Heating & Air Conditioning has been a family-owned business in Helena since 1984. We've installed furnaces in homes that have since changed hands twice. We've serviced the same commercial buildings for twenty years running. When you call us, you get our people — experienced, licensed tradesmen who live and work in this valley just like you do.
We serve Helena, Montana City, Clancy, Boulder, Townsend, and the Hi-Line out of our Shelby location. Residential or commercial, new construction or emergency repair — we handle it.
Fully insured. Premier Lennox Dealer. Contractor Registration #150921.
What We Do
Heating
Furnace installation, replacement, and repair. We service most makes and models. If it heats your home, we know it.
Air Conditioning
Montana summers are short. Make them comfortable. We install and service central AC systems sized right for your home.
Preventive Maintenance
Don't wait for something to break. Our maintenance program includes annual inspections, cleaning, lubrication, and safety checks — plus a 10% discount on parts and filters.
Indoor Air Quality
The air inside your home is 2–5 times more polluted than outside air. We install Lennox Healthy Climate PureAir systems that filter particles down to .01 micron.
Humidification
Dry winter air is hard on your family and your home. We install whole-home humidification systems that protect wood floors, furniture, and lungs through the long heating season.
Duct & Dryer Vent Cleaning
Your ducts have been moving air — and everything in it — through your home for years. We clean them properly, with rotary brushes, high-powered air pressure, and professional vacuums.
Smart Thermostats
Control your system from anywhere with a Lennox iComfort WiFi thermostat. Easy to program, easy to read, and it pays for itself in energy savings.
24-hour emergency service, 7 days a week.
Because a furnace doesn't care what day it is.
“Coming back from a 24-hour flight to learn your furnace isn't working is not the best welcome home. I want to thank you for keeping my old furnace running while ordering a new one — and for installing it so quickly. Now that the really cold weather has hit, I am eternally grateful. The three guys you sent couldn't have been nicer. First thing they did was knock the snow off their boots.”
— Beth
Why Helena Has Called Us First for 40 Years
What Our Neighbors Say
“Thank you so much for your weekend furnace call. Now, during these cold days, I'm not afraid. Merry Christmas and thank you again. I will use your business for all heating and AC work — and tell everyone I know to use you too.”
— Dee
“Your team was very respectful of our house and did such nice finishing work. We are very happy and impressed.”
— Kelly, Jamie & Alma
“Works great. Seems like a new home.”
— Bob & Bonnie
“The gentlemen who installed our AC were the nicest and politest technicians we've ever had in our home. You should be proud of them.”
— John
Ready to Get Started?
Whether you need emergency service tonight or want to plan a replacement before next winter, we're easy to reach and straight with you about what things cost.
Mon–Fri 8am–5pm · 24-Hour Emergency Service Available