Insulation Contractors Serving Westport, Wisconsin

Whether you're located along County Highway M, near the Yahara River, or in one of Westport’s scenic lake-area neighborhoods, your home faces the full force of Wisconsin’s climate. Frigid winters, humid summers, and powerful freeze–thaw cycles make insulation and concrete stability essential for comfort, efficiency, and long-term durability.

Duerst Insulation Technicians proudly serves homeowners throughout Westport with high-quality insulation, air sealing, and concrete lifting services. With decades of experience and proven craftsmanship, we help you keep your home efficient, comfortable, and protected year-round.

Why Westport Homeowners Choose Duerst

• Deep experience with Dane County climate and home construction

• Highly trained installers in spray foam, dense-pack, blown-in systems, and slab stabilization

• Upfront application of Focus on Energy rebates for immediate savings



• Full-service insulation and concrete repair from a single trusted contractor

• Consistent, reliable workmanship backed by decades of local service

Comprehensive Insulation Services in Westport, WI

Attic Insulation & Air Sealing

A properly insulated attic is critical in Wisconsin’s demanding climate. We install blown-in cellulose or fiberglass and perform detailed air sealing to eliminate drafts, increase energy efficiency, and prevent ice dams—common problems in lake-adjacent neighborhoods where temperature swings occur quickly.

Wall Insulation for Existing Homes

Many Westport homes—including older houses and rural properties—can benefit from upgraded wall insulation. Our dense-pack method fills wall cavities behind existing surfaces with minimal disruption, improving comfort, lowering utility bills, and reducing noise transmission throughout your home.

Basement and Crawl Space Insulation

Cold floors, drafts, and moisture problems often originate in these lower-level areas. We insulate foundation walls, rim joists, and sill plates to block air leakage, reduce humidity, improve comfort, and help prevent mold and structural issues common in damp waterfront environments.

Spray Foam Insulation in Madison

Spray foam insulation offers unmatched air sealing, high R-values, and strong moisture resistance—ideal for Wisconsin homes exposed to harsh conditions. We install both open-cell and closed-cell spray foam depending on your needs. Spray foam expands to fill gaps and irregular cavities, strengthens building assemblies, and prevents air leakage in attics, rim joists, basements, crawl spaces, garages, and hard-to-insulate areas. By enhancing thermal performance and reducing drafts, spray foam helps Westport homes maintain stable indoor temperatures and improve energy efficiency year-round.

Insulation Removal & Replacement

Old or compromised insulation—whether due to moisture, pests, or age—reduces performance and affects indoor air quality. Our team safely removes deteriorated insulation and replaces it with modern, efficient materials designed for Wisconsin’s climate and long-term reliability.

Soundproofing Services

From home offices to entertainment rooms and multi-level living spaces, our sound-dampening insulation minimizes noise transfer for a quieter home. We tailor each project to your space, using materials and techniques designed for optimal acoustics and comfort.

Concrete Lifting & Leveling

Westport’s shifting soils and freeze-thaw cycles can cause sidewalks, driveways, patios, and garage floors to sink or tilt. We lift and level sunken concrete slabs to eliminate trip hazards, restore proper drainage, and prevent further settling—without the cost or disruption of full replacement.

Energy Audits & Rebate Assistance for Westport Residents

Every project begins with a detailed assessment of your home’s energy performance. Through Wisconsin’s Focus on Energy program and available federal incentives, we apply qualifying rebates directly to your project cost—saving you money while significantly improving home efficiency.