Compare the highest-rated insulation professionals in Greenville, Illinois. All contractors are licensed, insured, and verified through our rigorous screening process.
A highly-rated, full-service home improvement and repair company based in Greenville. They are a local favorite for a wide range of services, including comprehensive insulation work. Their strengths include being a locally-owned and operated business with rapid response times and deep community ties.
A long-standing, family-owned HVAC and insulation expert based in Highland, IL. They serve a wide area including Greenville and are well-regarded for their expertise in creating energy-efficient home envelopes. Their combination of HVAC and insulation services allows for superior whole-home energy audits and air sealing.
A specialized contractor focusing on the lower levels of the home, serving the greater Southern Illinois and St. Louis Metro-East area, including Greenville. They are a franchise of a nationally recognized brand, bringing specific expertise in moisture control and insulation for basements and crawl spaces, which are critical in the Illinois climate.
The insulation market in Greenville, IL, is characteristic of a smaller Midwestern city. There is one strong local general contractor (All Around Home Service) that handles a significant portion of basic insulation projects. For more specialized services like comprehensive energy audits, advanced spray foam applications, or complex basement/crawl space solutions, residents typically rely on established contractors from nearby regional hubs like Highland, Belleville, and the broader St. Louis Metro-East area. Competition is moderate, ensuring fair pricing, but options for highly specialized insulation work are limited within the city limits itself. The average quality of service from the top providers is high, as they rely on reputation in a closely-knit community. Typical pricing is in line with national averages for the Midwest, with blown-in attic insulation ranging from $1,500 - $3,500 for an average home, and spray foam projects costing significantly more. These providers are generally well-versed in local building codes and can often advise on available utility rebates, particularly for energy efficiency upgrades.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Greenville regulations and climate
Get answers to common questions about insulation services in Greenville, Illinois.
For Greenville's climate, which features hot, humid summers and cold winters with an average low around 20°F, a combination approach is often best. Blown-in cellulose or fiberglass in the attic floor is highly effective for thermal performance and air sealing. Many local providers also recommend adding radiant barrier foil under the roof decking to combat summer heat gain, which is a significant concern for Illinois homes.
Costs vary based on home size, material, and existing conditions, but for a typical 1,500 sq ft attic in Greenville, blown-in insulation can range from $1,500 to $3,500. Regional material and labor rates influence this, and older homes often require more prep work like air sealing. It's crucial to get a detailed, in-person estimate from a local contractor, as many Illinois utilities offer rebates that can offset 25-50% of the cost for qualifying upgrades.
The best times are late spring (May) and early fall (September-October). These periods typically offer mild, dry weather in Southern Illinois, which is optimal for attic work and allows for proper ventilation during installation. Avoid peak summer, as attic temperatures can be dangerously high for workers, and deep winter, when existing moisture in materials can freeze, complicating the process.
First, verify they are licensed and insured to work in Illinois. Look for established local companies with strong references in Bond County, as they understand regional building styles and common issues like ice dams or humidity control. Ensure they perform a thorough energy audit or inspection first and provide clear details on recommended R-values (like R-49 to R-60 for attics in our zone) and air sealing measures.
Yes, insulation work must comply with the 2021 Illinois Energy Conservation Code, which adopts the International Energy Conservation Code (IECC). For Greenville, this specifies minimum R-values for different parts of the home (e.g., attic, walls, floors). Your contractor should pull any required permits from the City of Greenville or Bond County, which ensures the installation is inspected for safety and code compliance, protecting your investment.