HVAC Installation & Service in Yellowstone County, MT
HVAC Installation & Service companies serving Yellowstone County — compare ratings, hours, and contact details.
8
Pros actively working
4.8
What people rate them
15
Real reviews
Yellowstone County, Montana HVAC company map
See where the best hvac installation & service crews are located around Yellowstone County, Montana.
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HVAC Installation & Service in Yellowstone County: what the listings show
Of the 8 HVAC Installation & Service contractors listed in Yellowstone County, 4 advertise 24-hour availability and 5 are open on Sundays.
8
contractors listed
4
open 24 hours (57%)
5
open Sunday (71%)
5
open Saturday (71%)
3
have a website
Why Yellowstone County's frigid weather breaks HVAC systems
In Yellowstone County, summer highs average 74°F. That strains compressors, refrigerant lines, and condensate drains. Common local issue: heat exchanger wear due to long duty cycles. Recommended: systems rated SEER2 16+ for this climate.
Complete HVAC Installation & Service in Yellowstone County
System installation
Manual J sizing, duct design, and equipment commissioning.
Heat pumps
SEER2 and HSPF2 optimized heat pump installs.
Ductwork upgrades
Airflow balancing and duct sealing.
Smart controls
Thermostat calibration and zoning.
HVAC Installation & Service costs in Yellowstone County (2026 estimates)
| Service | Low | High |
|---|---|---|
| System replacement | $8,976 | $13,464 |
| Heat pump install | $10,608 | $15,912 |
| Ductwork upgrade | $3,672 | $5,508 |
Prices reflect local labor rates in Montana.
Serving Yellowstone County and surrounding neighborhoods
Verified hvac installation & service companies cover ZIP codes across the Yellowstone County metro and surrounding areas.
ZIP code coverage is being updated.
Yellowstone County HVAC permits & rebates
Permits Required
Most system replacements in Yellowstone County require a permit from the Yellowstone County Building Department.
Available Rebates
Check for rebates with your local utility provider for SEER2 heat pumps, smart thermostats, and insulation upgrades.
Yellowstone County HVAC FAQ
Full system replacements in Yellowstone County average $8,000–$14,000 installed. Heat pump systems run $10,000–$16,000. Get at least 3 itemized bids including equipment, labor, permits, and disposal of the old unit.
Yes. Yellowstone County requires a mechanical permit for full system replacements and new gas line connections. Your licensed contractor must pull the permit before work starts and schedule a city inspection after installation.
Most straight-swap replacements take 4–8 hours. New construction installs or full duct replacements run 1–3 days. Confirm the scope includes equipment delivery, permit scheduling, and post-install commissioning.
Check license status through the Montana state licensing board's online lookup tool. All installers working with refrigerant must also carry EPA Section 608 certification.
Top HVAC pros in Yellowstone County
Compare verified providers with strong local reputations and recent customer feedback.
Call to confirm availability and request a quote.
Call to confirm availability and request a quote.
Call to confirm availability and request a quote.
Call to confirm availability and request a quote.
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HVAC Installation & Service reviews in Yellowstone County
Hear from Yellowstone County homeowners about their experience with local hvac installation & service companies.
Moms heater wouldnt turn on Aire Serv came out needed part next day they had it runing told us what was wrong honest people upfront price very friendly recammend to all
Jeremy was ver professional, friendly and efficient. Overall a good experience !
Thank you. I will definitely recommend Matt and the Aire-Serve team. They were on time and installed my new shop heater in no time. It is working great.
The best customer service ever. Prompt, friendly, courteous. The service tech was awesome. He addressed our concerns and was thorough. Aireserve is the best!
This company is very professional. My service tech David Weempe was on time and very knowledgeable.I will refer them to my friends.
HVAC Installation & Service performance guide for Yellowstone County, Montana
Climate averages are state-level reference values, not city-specific measurements.
Climate impact in Yellowstone County, Montana
Yellowstone County, Montana sits in a Very Cold climate zone with average summer highs near 74°F and winter lows near5°F. Those swings load the evaporator coil, blower motor, refrigerant lines, and condensate drain. Keep a clean MERV filter to protect the compressor.
Extended heating cycles strain heat exchangers and blower motors. Inspect ignition systems and combustion safety annually.
Most common local breakdowns
Cracked heat exchangers from high duty cycles and delayed service.
Frozen condensate lines and iced outdoor coils during subfreezing weeks.
Low airflow from dirty MERV filters or a weak blower motor causes ice. Ask for airflow and refrigerant superheat checks.
Equipment recommendation
Cold-climate heat pumps with auxiliary heat or a 90+ AFUE furnace backup reduce stress on the heat exchanger during deep-freeze cycles. Seal ductwork and schedule coil cleaning to protect the heat exchanger, capacitor, and compressor.
Furnace + AC setups need annual heat exchanger inspection, verified combustion, and balanced blower airflow.
Local code and housing notes
Ask contractors about Montana energy code compliance and permits. Older homes often benefit from ductless mini-splits to reduce line-set length and improve zone control.
Mechanical permit for system replacement and condenser swaps.
Post-install inspection covering refrigerant line pressure and condensate drain routing.
Load calculation proof to avoid short-cycling compressors.
Airflow verification (blower motor speed + static pressure).
Always confirm a contractor's license and insurance before hiring.
Learn more: Montana HVAC coverage · SEER2 rating guide · MERV filter selection · Editorial Policy · How We Rank