The Best Insulation Contractors in Marathon, WI

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

#1

Energy Services of Wisconsin

4.8
(180 reviews)
Verified

A leading energy efficiency and insulation contractor for North Central Wisconsin. They are highly regarded for comprehensive home performance solutions, including advanced diagnostic testing with blower doors and infrared cameras. Their strength lies in creating customized, whole-home solutions that address insulation, air sealing, and ventilation as an integrated system.

5909 N 32nd St, Wausau, WI 54401 (Serves Marathon, WI)

Specialties & Features

Spray foam insulation
Energy efficiency audits
Air sealing services

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes
#2

All Weather Insulators

4.7
(90 reviews)
Verified

A specialized insulation contractor known for expertise in both residential and commercial projects. They focus on modern insulation techniques and materials, providing effective solutions for new construction and retrofit applications. Customers frequently praise their professionalism, clean work, and knowledge of current building science.

109 S 1st Ave, Wausau, WI 54401 (Serves Marathon, WI)

Specialties & Features

Blown-in insulation installation
Attic insulation installation and upgrade
Basement and crawl space insulation

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#3

Quality Insulation Installers

4.6
(70 reviews)
Verified

A reliable, locally-owned contractor that handles a wide range of insulation projects, from simple attic jobs to complex wall and crawl space insulation. They are noted for their straightforward pricing and focus on customer service. They effectively handle insulation removal and replacement projects, bringing homes up to modern energy standards.

4815 Barbican Ave, Stevens Point, WI 54481 (Serves the Central WI region, including Marathon)

Specialties & Features

Insulation removal and replacement
Wall insulation services
Blown-in insulation installation

Business Information

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

Why These Are the Top Insulation Contractors in Marathon

The insulation market in and around Marathon, Wisconsin, is characterized by a small number of highly specialized and reputable contractors, primarily based in the larger hub of Wausau. The competition level is moderate but healthy, with a focus on quality and energy efficiency due to the region's cold climate. The average quality of service is high, as contractors must be well-versed in the specific challenges of insulating homes against harsh Wisconsin winters, including ice dam prevention and managing moisture. Typical pricing is competitive with national averages, with spray foam being a premium service. Many providers are experts in accessing state and utility-specific energy efficiency rebates, such as those from Focus on Energy, which are a significant driver for homeowners in the area. Customers can expect professional service from established companies with strong local reputations.

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 Marathon regulations and climate

Frequently Asked Questions About Insulation in Marathon

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

1What is the recommended R-value for attic insulation in Marathon, Wisconsin, and why is it higher here than in warmer states?

For attic insulation in our climate zone (Zone 6), the U.S. Department of Energy recommends an R-value of R-49 to R-60. This high recommendation is due to Marathon's long, severe winters with average lows in the single digits. Properly meeting this R-value is critical for preventing significant heat loss through the roof, reducing heating bills, and avoiding ice dam formation on your eaves, a common local issue caused by attic heat warming the roof.

2When is the best time of year to schedule insulation installation in Marathon?

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 blowing attic insulation or sealing air leaks. Scheduling during these shoulder seasons also helps you avoid the peak summer heat in the attic and ensures your home is fully prepared before the deep winter freeze sets in, which can strain local contractor availability.

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

Yes, Wisconsin homeowners should first check Focus on Energy, the state's energy efficiency program, which often offers cash-back rebates for qualifying insulation upgrades. Additionally, Marathon County or local utilities like Wisconsin Public Service (WPS) may have specific incentives. It's crucial to verify program requirements *before* starting work, as they often require a pre-installation audit and the use of a registered contractor.

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

Look for a licensed, insured contractor with specific experience in Wisconsin's climate. Ask for local references and examples of past work in the area. A reputable provider should perform a thorough energy audit or assessment before quoting, and they should be knowledgeable about local building codes and the specific challenges of older homes common in Marathon, such as proper ventilation to prevent moisture issues.

5My energy bills are high, but I'm concerned about moisture and mold in our cold climate. Will adding more insulation cause problems?

Properly installed insulation with correct air sealing actually helps control moisture by reducing condensation on cold interior surfaces. The key for Marathon homes is ensuring the insulation strategy includes a proper air barrier and that attic and crawl space ventilation is maintained or improved to allow moisture to escape. A qualified local contractor will assess your home's specific ventilation needs to prevent mold and ensure the insulation works safely and effectively.