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Insulation Contractors Serving Waunakee, Wisconsin

Waunakee is one of Dane County’s fastest-growing communities—and whether your home is brand new, established, or undergoing renovations, proper insulation is essential to maintaining comfort and efficiency through Wisconsin’s extreme seasons.


Duerst Insulation Technicians brings decades of expertise to homes and businesses across Waunakee, helping property owners stay warm in winter, cool in summer, and protected year-round. From insulation upgrades to air sealing and concrete lifting, our team provides the comprehensive services needed to keep Waunakee properties performing at their best.

Why Waunakee Homeowners Choose Duerst

  • Extensive experience with Wisconsin building styles and climate demands


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


  • Upfront application of Focus on Energy rebates to immediately lower project cost


  • A full suite of insulation, air sealing, and concrete repair services


  • Trusted local service with a commitment to quality and long-lasting results

Comprehensive Insulation Services in Waunakee, WI

Attic Insulation & Air Sealing

Attics are one of the biggest sources of heat loss in Wisconsin homes. We install blown-in cellulose or fiberglass and perform detailed air sealing to reduce drafts, prevent ice dams, and stabilize temperatures throughout your home. A properly insulated attic greatly improves comfort in both winter and summer.

Wall Insulation for Existing Homes

Many Waunakee homes—especially older builds and mid-century properties—benefit from upgraded wall insulation. Our dense-pack insulation fills wall cavities behind existing drywall or siding, improving thermal performance, reducing noise, and lowering energy bills with minimal disruption to your home.

Basement and Crawl Space Insulation

Moisture, cold floors, and drafts often originate from poorly insulated lower-level spaces. We insulate foundation walls, rim joists, and sill plates to reduce air leakage, control humidity, improve comfort, and help protect your home from mold and structural damage.

Spray Foam Insulation in Madison

Spray foam insulation is one of the most effective ways to enhance energy efficiency and eliminate air leakage. We install both open-cell and closed-cell spray foam depending on your home’s needs. Spray foam expands to fill gaps, delivers high R-value performance, helps control moisture, reinforces structural surfaces, and is ideal for attics, basements, rim joists, crawl spaces, garages, and hard-to-insulate areas. Its superior sealing power helps Waunakee homes maintain stable indoor temperatures year-round, even during Wisconsin’s extreme climate shifts.

Insulation Removal & Replacement

Damaged, contaminated, or outdated insulation can negatively affect indoor air quality and energy efficiency. We safely remove old material and replace it with modern, high-performance insulation engineered for Wisconsin’s climate and long-term durability.

Soundproofing Services

Whether you’re creating a quieter workspace, a home theater, or improving privacy in multi-level living spaces, our soundproofing insulation helps reduce noise transfer between rooms and floors. We apply specialized materials and methods tailored to your home’s layout and goals.

Concrete Lifting & Leveling

Waunakee’s soil conditions and freeze-thaw cycles can cause sidewalks, driveways, patios, and garage floors to sink or shift. Our concrete lifting service raises and stabilizes sunken slabs, eliminating trip hazards, improving surface drainage, and restoring functionality—without the cost or disruption of full replacement.

Energy Audits & Rebate Assistance for Waunakee Residents

We begin every project with a full energy assessment to identify heat loss, air leakage, insulation gaps, and moisture concerns. Through Wisconsin’s Focus on Energy program and applicable federal incentives, we apply qualifying rebates directly to your project cost—helping you save money while improving your home’s performance.