Lakeside’s unique climate demands more than standard weatherproofing; it requires a high-performance thermal envelope. Wegner Insulation provides premium spray foam and traditional insulation solutions tailored for lakeside estates, custom new builds, and commercial properties. Whether you are looking to slash heating costs during a Montana winter or protect your structure from the humidity of the Flathead Valley, our expert team delivers precision air sealing and industry-leading R-values to ensure year-round comfort and structural longevity.



Maintaining a consistent indoor temperature in Lakeside requires a strategic approach to building science. Our specialized insulation techniques go beyond simple coverage, addressing the critical gaps and air leaks that traditional materials often miss. By integrating advanced spray foam technology with meticulous installation, we help local property owners significantly reduce energy consumption while improving indoor air quality. From lakefront renovations to expansive commercial developments, our mission is to provide a seamless barrier against the elements, ensuring your investment remains protected and efficient for decades to come.


Don’t let Montana’s harsh winters or humid summers dictate your indoor comfort. Whether you are building a custom home overlooking the water or upgrading a commercial facility, Wegner Insulation has the technical expertise and local experience to deliver results. Our team is ready to help you achieve a more sustainable, comfortable, and cost-effective property.
Lakeside, Somers, Bigfork, Kalispell, Columbia Falls, Whitefish, Evergreen, West Glacier, Creston, Hungry Horse, Kila.
Flathead County, Lake County.
We recently completed a comprehensive closed-cell spray foam installation for a new custom lakefront home in Lakeside. By sealing the rim joists and cathedral ceilings, we helped the homeowner reduce their projected heating loads by 40%, ensuring the home remains cozy during sub-zero winter nights without straining the HVAC system.
Call us today at (406) 654-4636 or email [email protected] to schedule your consultation and take the first step toward a high-performance home.
Unlike fiberglass, spray foam acts as both an insulator and an air barrier. In Lakeside, where wind off Flathead Lake can drive cold air through the smallest cracks, spray foam’s ability to seal gaps ensures much higher real-world energy efficiency.
Proximity to water increases humidity levels. We often recommend closed-cell spray foam for Lakeside properties because it is moisture-impermeable and acts as a vapor barrier, preventing mold growth and rot within your wall cavities.
Yes! We use techniques like blown-in insulation for attics and specialized injection or sealing methods to improve the thermal envelope of older Lakeside cabins and homes without requiring major demolition.
Absolutely. Both open-cell spray foam and mineral wool have excellent acoustic properties. They dampen exterior noise, whether it's traffic on Highway 93 or boat engines on the lake, creating a much quieter indoor environment.
Once cured (usually within 24 hours), spray foam is completely inert and safe. By significantly reducing energy consumption, it is also one of the most eco-friendly choices a Lakeside homeowner can make to reduce their carbon footprint.