Thermal Solutions LLC
Your comfort is our priority
On and off-grid heating and cooling.
Heating and cooling for homes, businesses, and off-grid places. Gas, ductless mini-splits, heat pumps, furnaces, and systems ready for solar. Based in Marion, serving the Flathead Valley. We install and service the heating and cooling. We do not sell solar, and we do not wire solar arrays.
15+
Years of Experience
Off-Grid Comfort
Off-Grid Heating & Cooling
Gas furnaces, heat pumps, and ductless mini-splits designed for homes and businesses without natural gas or grid dependence. Systems sized for Montana winters and year-round comfort.
Solar-Ready Setup
Solar & Battery Ready
Heat pumps and mini-splits configured to work with solar and battery systems for homes and businesses planning low-power or off-grid setups. EG4 battery systems integrate with your heating to maximize efficiency. Electrical work, including any utility tie-in, is done by a licensed electrical contractor or homeowner where rules allow. We do not sell solar or wire arrays.
Fuel-Based Heat
Wood & Gas Heat
Gas furnace installation and service for off-grid and remote properties. For wood heat options, we can discuss what works for your situation. All systems installed to code and to fit your setup.
Off-Grid Life
Energy Independence
Heating and cooling systems that work with low-power setups, renewable energy, and off-grid electrical systems. Designed for efficiency and resilience in remote Montana locations. Service and maintenance to keep your system reliable year-round.
Why Thermal Solutions
A Local Team You Can Trust
We are a locally owned, licensed HVAC company based in the Flathead Valley. Our team brings 15+ years of real, hands-on trade experience to every job — and we treat your home or business like it is our own. No upselling, no games: just honest pricing and work we are proud to put our name on.
Licensed & Insured
Fully licensed Montana HVAC contractors carrying proper insurance, so you can hire with total confidence.
Honest Pricing
Straightforward quotes with no surprise fees. We explain the work, the price, and the options before we start.
Quality Workmanship
15+ years of hands-on HVAC experience means clean installs and repairs that are done right the first time.
Dependable Service
We show up when we say we will and stand behind every job — residential or commercial, big or small.
Our Work
Quality Installations and Service
Clean installs and reliable systems across the Flathead Valley.
Heat Pump Installations
Clean, quiet outdoor condenser installs sized for real Montana winters.
Custom Ductwork
Hand-fabricated sheet-metal ductwork designed for balanced airflow.
Comfort Controls
Smart thermostats and zoning that make every room comfortable.
Gallery
Project Gallery
See our recent HVAC installations and projects throughout the Flathead Valley.
How It Works
Simple, Straightforward Service
From your first call to ongoing maintenance, we make the whole process easy.
Reach Out
Call us or request a free estimate online. Tell us what is going on and we will answer your questions honestly.
Free Estimate
We visit your home or business, assess the system, and provide a clear, written estimate — free of charge, no pressure.
Expert Installation
Our licensed technicians complete the work on schedule, cleanly and to code, with minimal disruption to your day.
Ongoing Support
We follow up, walk you through your new system, and keep it running with seasonal maintenance plans.
Equipment We Install
Quality Brands You Can Count On
We install and service Fujitsu and Coleman heating and cooling systems. We also work with EG4 battery and power systems that pair with solar-ready equipment for homes and businesses planning solar installations.
Coleman Gas Furnaces
- • Standard and high-efficiency models, from single-stage, two-stage, and Modulating, sized to your home with a full load calculation. Natural gas or propane.
Air Handlers & Electric Furnaces
Air handler and electric furnace installation and replacement for homes with heat pumps, central air, or no gas service. Sized to your home and ductwork.
Coleman
Reliable heating and cooling systems for homes and businesses
Fujitsu
Efficient ductless and heat pump systems
Service Area
Proudly Serving the Flathead Valley
Based in Marion, Montana, we serve homeowners and businesses throughout the Flathead Valley and surrounding communities. If you are nearby, we will be there.
- Marion
- Kalispell
- Whitefish
- Columbia Falls
- Bigfork
- Lakeside
- Somers
- Polson
- Kila
- Hungry Horse
- Martin City
- Coram
- Libby
Don't see your town? Call us — we likely cover it too.
Rebates
Federal tax credits for heat pumps and solar ended for installs after December 31, 2025. Flathead Electric Cooperative offers member rebates on certain equipment, such as ducted air-source heat pumps (variable-speed units qualify in most cases) and ductless heat pumps replacing electric heat, through its qualified installer program. Ask us about current eligibility when we put your quote together.
Contact Us
Get in Touch
Tell us about your project and we will get back to you quickly with honest answers and a free, no-obligation estimate. Prefer to talk? Give us a call — we love hearing from our neighbors.
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Call or text
(406) 854-5409 -
Based in
Marion, Montana — serving the Flathead Valley
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Hours
Mon–Fri 7:30am–5:30pm · Sat 8:00am–2:00pm
No extra charge for after-hours calls.
Pick a time that works for you.
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Common Questions
Do you offer free estimates?
Yes, free estimates for residential and commercial.
What areas do you serve?
Based in Marion, serving the Flathead Valley: Marion, Kalispell, Whitefish, Columbia Falls, Bigfork, Lakeside, Somers, Polson, Kila, Hungry Horse, Martin City, Coram, Libby.
Do you charge extra for after-hours calls?
No extra charge for after-hours calls.
Do you sell or install solar?
We install and service heating and cooling. We do not sell solar and we do not wire solar arrays; electrical work stays with a licensed electrical contractor or homeowner where rules allow.
Are there rebates?
Federal tax credits for heat pumps and solar ended for installs after December 31, 2025. Flathead Electric Cooperative offers member rebates on certain equipment, such as ducted air-source heat pumps (variable-speed units qualify in most cases) and ductless heat pumps replacing electric heat, through its qualified installer program. Ask us about current eligibility when we put your quote together.