Compare the highest-rated insulation professionals in Grafton, Wisconsin. All contractors are licensed, insured, and verified through our rigorous screening process.
A leading regional contractor specializing in comprehensive home performance upgrades. They are highly regarded for their energy audit services which inform their insulation and air sealing work, ensuring maximum efficiency. They are a Diamond Contractor through Owens Corning.
A well-established, family-owned insulation contractor serving Southeastern Wisconsin. They have a strong reputation for professionalism and quality workmanship across a wide range of insulation types, including blown-in and batt insulation.
This provider focuses heavily on the "home performance" model, integrating insulation with air sealing to solve comfort and energy cost issues. They are known for their expertise in more complex projects, including basement, crawl space, and wall insulation.
The insulation market in Grafton, WI, and the broader Ozaukee County area is characterized by a mix of a few highly specialized local contractors and several larger regional players who serve the Milwaukee metropolitan north shore. The overall quality of service is high, as these companies cater to a homeowner base that values energy efficiency, home comfort, and property value. Competition is robust but not oversaturated, leading to competitive pricing and a strong emphasis on customer service and professional certifications (e.g., BPI). Typical pricing for a standard attic blown-in insulation job can range from $1,500 to $3,500, while more comprehensive services like spray foam or full-home air sealing and insulation can range from $5,000 to $15,000+. Homeowners in this area also have access to various state and utility rebate programs (e.g., from Focus on Energy), which the top providers are well-versed in navigating.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Grafton regulations and climate
Get answers to common questions about insulation services in Grafton, Wisconsin.
For Grafton's climate, achieving a high R-value is critical. We recommend blown-in cellulose or fiberglass for attics, as they provide excellent coverage over existing materials and can achieve the recommended R-49 to R-60 for our zone. Spray foam is also highly effective for sealing air leaks in rafter bays but comes at a higher cost. The best choice depends on your attic's current condition, budget, and any moisture concerns.
Costs vary based on home size, material, and existing insulation. For a standard 1,500 sq ft attic, adding blown-in insulation to reach R-49 typically ranges from $1,500 to $3,000. Regional material costs and Wisconsin's seasonal demand can influence pricing. It's wise to get multiple quotes from local providers and inquire about potential rebates from Focus on Energy, Wisconsin's energy efficiency program, which can offset 10-20% of the project cost.
The ideal times are late spring (May-June) and early fall (September-October). These periods offer moderate temperatures, making it easier for contractors to properly install materials and for your home to be ventilated during the process. While insulation can be installed year-round, scheduling outside of the peak winter demand (when many discover their insulation is inadequate) can lead to better availability and pricing.
Yes, you should always check with the Grafton Building Inspection Department. Most insulation work requires a building permit, especially if it involves altering the building envelope. Local codes will specify required R-values, proper vapor barrier installation (crucial for our humid summers and cold winters to prevent condensation), and fire-blocking requirements. A reputable local installer will handle this permitting process for you.
Yes, dense-pack cellulose or injection foam insulation can be installed in existing closed walls with minimal disruption. A professional will drill small holes in the exterior siding or interior wallboard, fill the cavity, and then patch the holes. This is a common solution for Grafton's historic and mid-century homes, dramatically improving comfort and reducing heating bills by stopping the air infiltration common in our windy winters.