What makes our products stand out from the competition?

Since 1997, we've sold high-quality construction supplies for residential and commercial construction services. Our clients trust us because:


top-quality materials

exceptional customer service

Find What You Need to Complete Your Project

We sell high-quality construction supplies to clients in Fairfield and Great Falls, MT

Thermo Seal of Montana is your one-stop source for high-quality construction supplies in the Fairfield and Great Falls, MT areas. We sell energy-efficient windows, interior and exterior doors, garage doors and custom millwork. Go over your design goals with our team and we'll recommend the best items for your project. With so many color and design options to choose from, you're sure to find the right options for whatever you have planned.

We offer free estimates! Call now to place your order.

Visit our showroom

It's hard to visualize your new home without seeing references. That's why we welcome guests to our showroom to see the products we provide for residential and commercial construction services. When you get here, you'll be greeted by our friendly associates. Let us know the details of your project and we can recommend quality products that fit your budget and design goals.

Contact our team now to plan your visit to our showroom.