The Best Insulation Contractors in Lake Mills, WI

Compare the highest-rated insulation professionals in Lake Mills, Wisconsin. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

A1 Insulation

4.8
(180 reviews)
Verified

A1 Insulation is a highly-rated, full-service insulation contractor based in Fort Atkinson, serving the wider region including Lake Mills. They are known for their expertise in both residential and commercial projects, emphasizing energy efficiency and professional installation. They are often recommended for their knowledge of local utility rebates.

1001 Janesville Ave, Fort Atkinson, WI 53538 (Serves Lake Mills)

Specialties & Features

Spray foam insulation
Blown-in attic insulation
Insulation removal and replacement

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#2

Capital City Insulation

4.7
(150 reviews)
Verified

Based in Madison, Capital City Insulation is a leading provider with a strong reputation for comprehensive home performance services. They combine insulation work with energy audits and air sealing to provide whole-home solutions, making them a top choice for homeowners focused on maximum energy savings.

583 D'Onofrio Dr #110, Madison, WI 53719 (Serves Lake Mills)

Specialties & Features

Energy efficiency audits
Air sealing services
Attic insulation installation and upgrade

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes
#3

Wisconsin Weatherization

4.6
(90 reviews)
Verified

Wisconsin Weatherization specializes in improving home energy efficiency through insulation and air sealing. Serving Jefferson County and the surrounding areas, they have a strong local presence and are recognized for their work in both existing homes and new construction, including basements and crawl spaces.

122 E Racine St, Jefferson, WI 53549 (Serves Lake Mills)

Specialties & Features

Basement and crawl space insulation
Wall insulation services
Air sealing services

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes

Why These Are the Top Insulation Contractors in Lake Mills

** The insulation market in and around Lake Mills, WI, is characterized by a high level of quality and specialization, driven by the region's cold climate and homeowner focus on energy efficiency. While there are no major national chains based directly in Lake Mills, the city is competitively served by well-established, regional contractors from neighboring hubs like Fort Atkinson, Jefferson, and Madison. The competition is healthy, ensuring good service standards. These providers are typically well-versed in Wisconsin's building codes and programs like Focus on Energy, which can offer significant rebates. Pricing is generally in line with regional averages; for example, attic blown-in insulation can range from $1,500 to $3,500, while spray foam projects are more premium, often starting at $2,500 and going up significantly based on scope. Homeowners in Lake Mills have access to reputable, local experts who provide personalized service and deep knowledge of the specific environmental challenges posed by Southeastern Wisconsin winters.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Lake Mills regulations and climate

Frequently Asked Questions About Insulation in Lake Mills

Get answers to common questions about insulation services in Lake Mills, Wisconsin.

1What is the best type of insulation for my attic in Lake Mills, given our cold winters?

For our climate, air-sealing combined with high R-value insulation is critical. Blown-in cellulose or fiberglass are excellent choices for attics, as they effectively fill irregular spaces and achieve the recommended R-49 to R-60 level for our zone. This level is crucial to prevent significant heat loss through the roof during our long, cold Wisconsin winters and to manage summer humidity.

2When is the optimal time of year to schedule insulation work in Lake Mills?

The ideal times are late spring (May-June) and early fall (September-October). These periods typically offer mild, dry weather, which is important for projects like attic work where extreme heat in summer or cold and moisture in winter can complicate installation and material performance. Scheduling during these shoulder seasons also ensures your home is prepared before the peak heating and cooling demands hit.

3Are there any local rebates or incentives in Wisconsin for upgrading my home's insulation?

Yes, Focus on Energy, Wisconsin's statewide energy efficiency and renewable resource program, offers cash-back rebates for qualifying insulation upgrades that meet specific performance standards. Additionally, Jefferson County or your local utility (like Alliant Energy or We Energies) may have additional incentives. A reputable local installer will be familiar with these programs and can help you navigate the application process.

4How do I choose a reliable insulation contractor in the Lake Mills area?

Look for a licensed, insured contractor with specific experience in our climate. Ask for local references in towns like Lake Mills, Cambridge, or Jefferson, and verify they perform a thorough energy audit or assessment before quoting. It's also wise to confirm they understand and comply with Wisconsin's building codes and Focus on Energy program requirements to ensure quality and eligibility for incentives.

5My older Lake Mills home is drafty. Will adding insulation alone solve my comfort issues?

Not entirely. In many historic Wisconsin homes, air leakage is a major culprit. The most effective approach is a comprehensive "air-seal first, then insulate" strategy. This involves sealing gaps, cracks, and penetrations in the attic, basement rim joists, and around windows and doors before adding new insulation. This stops the cold drafts we feel off Rock Lake and prevents moist indoor air from causing condensation issues within your walls.