Compare the highest-rated insulation professionals in South Wilmington, Illinois. All contractors are licensed, insured, and verified through our rigorous screening process.
A highly-rated, family-owned contractor specializing in comprehensive insulation and energy efficiency solutions for both residential and commercial properties. They are known for their professional crews, use of high-quality materials, and expertise in a wide range of insulation types, including spray foam and blown-in cellulose.
Energy Seal is a dedicated insulation contractor with a strong focus on creating tighter building envelopes through advanced insulation and air sealing techniques. They are well-regarded for their detailed work in crawl spaces, basements, and walls, helping to improve home comfort and reduce energy bills.
A1 Insulation is a established local provider offering a full suite of insulation services, from new installation to removal and replacement of old, inefficient insulation. They are a go-to company for attic projects and are knowledgeable about local utility rebates and building codes.
The insulation market serving South Wilmington, IL, is characterized by a small number of highly specialized local and regional contractors. Due to the village's small size, there are no dedicated insulation providers physically located within its limits. However, residents are well-served by established companies in neighboring towns like Morris and Coal City. The competition is healthy among these few providers, which helps maintain a high standard of quality and customer service. These contractors are typically well-versed in the specific needs of older homes in the region and are knowledgeable about local building codes and available energy efficiency rebates from utilities like ComEd. Typical pricing is competitive with national averages, with project costs heavily dependent on the insulation type. For a standard attic blown-in cellulose job, homeowners can expect to pay between $1,500 and $3,500. More complex projects like full-home spray foam insulation or comprehensive air sealing can range from $5,000 to $15,000+. The overall market is reliable, with contractors who have built their reputation on long-term service to the Grundy County community.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with South Wilmington regulations and climate
Get answers to common questions about insulation services in South Wilmington, Illinois.
For South Wilmington's climate, which features cold winters and hot, humid summers, a combination of air sealing and high R-value insulation is critical. We typically recommend blown-in cellulose or fiberglass for attics, aiming for an R-value of R-49 to R-60, which meets Illinois energy code recommendations. This level helps combat significant temperature swings and reduces the strain on your heating and cooling systems year-round.
Costs vary based on home size, existing insulation, and material, but for a standard 1,500 sq ft attic in our area, you can expect a range of $1,500 to $3,500 for professional installation of blown-in insulation. Regional material costs and the necessity for proper air sealing before insulating can influence the final price. We recommend getting itemized quotes from local providers that detail material, labor, and any preparatory work.
Yes, homeowners should explore the Illinois Home Weatherization Assistance Program (IHWAP) and ComEd's Energy Efficiency Program, which often offer rebates for insulation upgrades that meet specific performance standards. Additionally, federal tax credits for qualified energy efficiency improvements may apply. It's best to check the current offerings with your insulation contractor or utility provider, as programs and amounts can change annually.
While insulation can be installed year-round, the ideal times are late spring (April-May) and early fall (September-October). These periods typically offer milder temperatures in Illinois, making it easier for contractors to perform thorough air sealing and for homeowners to manage without HVAC for a short period. Scheduling during these shoulder seasons also helps you prepare your home for the peak heating and cooling demands of winter and summer.
Prioritize contractors who are licensed, insured, and have strong local references. Specifically, look for experience with Illinois building codes and an understanding of our regional climate challenges, such as managing ice dams in winter and summer humidity. A reputable provider should offer a free, detailed inspection and explain their process for air sealing, which is just as important as the insulation itself for home performance.