About

Peak Spray Foam is a full-service insulation contractor based in Annandale, Minnesota, proudly serving residential and commercial customers throughout Central Minnesota, the greater Twin Cities area, and surrounding regions, including the Brainerd Lakes area. Owned and operated by Wayne Dearing, who has been providing insulation services in Minnesota, we specialize in spray foam insulation, fiberglass batt and loose-fill insulation, waterproofing, and above-grade weather barriers. Our company is built on experience, certified installers, and nationally verified standards, and we are committed to delivering high-quality insulation solutions with free estimates for every project across Wright County, Stearns County, Hennepin County, and beyond.
We are proud to be the first contractor in Minnesota accredited through the Spray Polyurethane Foam Alliance Professional Certification Program (PCP). This accreditation verifies that our company, equipment, safety procedures, and installers meet strict national standards for quality and professionalism. Our certified team includes Master Installers, a Certified Project Manager, and trained Assistant Installers, ensuring every project is completed correctly, safely, and efficiently across residential, commercial, and agricultural projects throughout Minnesota.
We don't chase standards, we set them.

Closed-Cell Spray Foam Insulation
Fiberglass Batt Insulation
Blown-In Fiberglass Insulation
Air Sealing Services
Commercial Air Barrier & Weather Barrier Systems
Below-Grade Waterproofing Systems
Residential & Commercial Insulation Services
New Construction & Retrofit Insulation
Free Insulation Estimates