Your Trusted Insulation Contractor in Kalispell and the Flathead Valley
Enjoy a more comfortable and energy-efficient property with our expert insulation services. As a family-owned company, we take pride in providing high-quality insulation solutions that reduce energy costs and enhance indoor comfort for your family or employees. Serving Kalispell and surrounding areas, our certified team handles residential and commercial projects with precision and care. From consultation to completion, we ensure a smooth experience and lasting results, creating spaces that remain comfortable, healthy, and efficient throughout the year.
Get A Quote Now

Your Local, Family-Owned Insulation Experts
Wegner Insulation LLC is a family-owned and operated company built on trust, integrity, and strong relationships with customers across the Flathead Valley. We’re more than insulation installers we’re certified professionals with a deep understanding of building science. Our expertise allows us to look beyond basic insulation, assessing your entire home or building to identify areas of energy loss and air leakage that impact comfort, air quality, and utility costs.
Whether you’re building new or improving an existing property, we provide tailored insulation solutions that deliver lasting efficiency and comfort. A properly insulated and air-sealed home not only reduces energy costs but also promotes a healthier indoor environment. When you choose Wegner Insulation LLC, you’re partnering with a team that treats your project as their own, ensuring exceptional results and a smooth experience from start to finish.
Our Services
Services We Offer

Residential Spray Foam Insulation
Improve comfort and save energy with our spray foam insulation. It seals gaps, regulates temperature, and reduces noise for a quieter, more efficient home.

Commercial Spray Foam Insulation
Save energy and improve comfort with our commercial spray foam insulation. It seals air leaks, controls moisture, and prevents mold for a healthier, more efficient workspace.

Open Cell Spray Foam Insulation
Open-cell spray foam is a light, flexible insulation that expands to fill gaps and hard-to-reach areas. It provides excellent air and sound barriers, allows moisture to escape, and offers a cost-effective way to improve energy efficiency and comfort.

Closed-Cell Spray Foam Insulation
Closed-cell spray foam is a dense, high-performance insulation that strengthens walls and prevents moisture intrusion. With a higher R-value per inch, it’s ideal for tight spaces, foundations, and exterior areas, offering superior protection and energy efficiency.

Agricultural Insulation
Safeguard your farm buildings with our agricultural insulation. It helps regulate temperatures in barns, workshops, and storage areas, protecting livestock, crops, and equipment while reducing energy costs and ensuring lasting performance.

Commercial Insulation
We provide commercial insulation solutions tailored to your business needs. From offices to warehouses, our services boost energy efficiency, cut operating costs, and create a more comfortable, productive workspace within your budget.

Residential Insulation
Our residential insulation services make your home more comfortable and energy-efficient. With options like spray foam, blown-in, and fiberglass, we help lower energy bills, maintain steady temperatures, and create a healthier living environment.

Blown-In Insulation
Blown-in insulation is a fast, effective way to improve attic and wall insulation. It fills gaps with loose-fill material like fiberglass or cellulose, creating a seamless thermal barrier that boosts comfort and reduces energy loss year-round.

Fiberglass Insulation
Fiberglass insulation is an affordable, reliable option for new and existing homes. Available in batts, rolls, or loose-fill, it fits walls, attics, and floors, reducing heat transfer to keep your home comfortable and energy-efficient year-round.

Mineral Wool Insulation
Mineral wool insulation offers excellent thermal, acoustic, and fire-resistant performance. Made from rock and slag, it’s durable, moisture-resistant, and ideal for walls, basements, and floors, providing lasting comfort, safety, and energy efficiency.

Air Sealing Services
Air sealing eliminates hidden gaps and cracks that cause energy loss. Our experts seal leaks to keep conditioned air in and outdoor air out, boosting energy efficiency, comfort, and indoor air quality throughout your home.

Exterior Insulation
Exterior insulation creates a continuous thermal barrier that boosts energy efficiency and reduces heat transfer through framing. It also protects your building from the elements, enhancing durability and performance in both new builds and renovations.

Foundation Insulation
Foundation insulation is key to improving home energy efficiency. It prevents heat loss through basements or crawl spaces, keeps floors warmer, reduces moisture issues, and enhances overall comfort by creating a complete thermal barrier.

New Construction Insulation
New construction insulation ensures your building is energy-efficient and comfortable from the start. We work with builders and homeowners to design and install high-performance insulation that delivers lasting comfort, durability, and energy savings.

Thermal Barrier Coatings
Thermal barrier coatings, or intumescent paints, add essential fire protection when spray foam is exposed indoors. Applied over the foam, they slow ignition and flame spread, meeting building code requirements and ensuring occupant safety.

Why Homeowners and Businesses Choose Wegner Insulation
- Family-owned and operated company providing dedicated, personalized service to every customer.
- Certified team with advanced building science knowledge to optimize home performance.
- Insulation solutions designed to improve efficiency and reduce energy bills.
- Focus on creating comfortable spaces with cleaner, healthier indoor air.
- Serving Kalispell, Whitefish, Columbia Falls, and surrounding communities.
- Strong commitment to quality workmanship and complete customer satisfaction.
- Offering a full range of insulation options, including spray foam and fiberglass.
- Providing free, no-obligation consultations to help you make informed decisions.
Contact us
What to Expect From Our Insulation Process
- Begin with a detailed consultation to understand your goals and assess your property’s needs.
- Conduct a thorough inspection to identify key areas for insulation and air sealing improvements.
- Create a customized plan outlining the most effective solutions for comfort and efficiency.
- Provide a transparent, upfront quote with no hidden fees or surprises.
- Perform professional installation with precision and respect for your property.
- Complete a full site cleanup, leaving your space neat and ready to use.
- Walk you through the finished project to ensure complete satisfaction.
- Offer continued support and guidance even after the installation is complete.

Areas We Serve
- Kalispell, MT
- Whitefish, MT
- Columbia Falls, MT
- Lakeside, MT
- Bigfork, MT
- Hungry Horse, MT
- Eureka, MT
- Polson, MT
- Missoula, MT
- Libby, MT
Email Address
Phone Number
Business Hours
Mon – Fri: 8:00 AM – 5:00 PM
Sat – Sun: Closed
