Compare the highest-rated insulation professionals in O Fallon, Illinois. All contractors are licensed, insured, and verified through our rigorous screening process.
While primarily known as an HVAC expert, Summer Shade has a dedicated insulation division that is highly regarded for its whole-home energy efficiency approach. They excel at integrating attic and wall insulation with air sealing and HVAC performance to maximize comfort and savings. Their strong local reputation and focus on comprehensive home performance audits make them a top-tier choice.
A specialist contractor focused solely on insulation and home performance. They are known for their expertise in advanced insulation techniques, including spray foam and blown-in cellulose. They are a certified contractor for various insulation manufacturers, ensuring proper installation and often helping homeowners access relevant rebates.
A well-established, family-owned insulation contractor with a long history in Southern Illinois. They offer a wide range of services from standard batt insulation to full removal and replacement projects. Their longevity in the business speaks to a consistent track record of reliability and customer satisfaction, particularly for more traditional insulation methods and retrofit projects.
** The insulation market in O'Fallon, IL, is robust and competitive, driven by the city's mix of older homes and new construction, as well as the region's variable climate with hot, humid summers and cold winters. The average quality of service is high, as contractors must compete with established St. Louis-area companies. Homeowners are increasingly aware of energy efficiency, leading to high demand for services like air sealing and spray foam insulation alongside traditional attic upgrades. **Competition Level:** High. Homeowners have a choice between specialized local insulation contractors, full-service HVAC companies with insulation divisions, and large national chains. The most reputable local providers distinguish themselves through superior craftsmanship, personalized service, and deep knowledge of local building codes and utility rebates (e.g., from Ameren Illinois). **Typical Pricing:** Costs can vary significantly based on the project scope and material. * **Attic Blown-In Insulation:** $1,500 - $3,500 for an average home. * **Spray Foam Insulation:** $2.00 - $5.00 per board foot, making it a premium but highly effective option. * **Wall Insulation (Blown-In):** $1,000 - $3,500 depending on the home's size and wall construction. * **Energy Audit:** $300 - $600, often applied as a credit if you proceed with recommended work. It is highly recommended to obtain at least two detailed quotes for any project and to verify that the contractor is properly licensed and insured before work begins.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with O Fallon regulations and climate
Get answers to common questions about insulation services in O Fallon, Illinois.
For O'Fallon's humid summers and cold winters, spray foam and blown-in cellulose are highly effective. Spray foam provides an excellent air seal, crucial for managing humidity, while dense-packed cellulose is great for retrofitting existing walls. The recommended R-value for attic insulation in our Illinois climate zone (Zone 5) is R49 to R60, which is a key local specification to ensure energy efficiency year-round.
Costs vary based on home size, insulation type, and areas treated. For a typical attic in O'Fallon, blown-in cellulose can range from $1,500 to $2,500, while spray foam is more premium, often $3,500 to $6,000. It's important to get multiple local quotes, as regional material availability and labor rates influence pricing. Many Illinois utilities, like Ameren Illinois, also offer rebates that can significantly offset the cost.
Fall and early spring are ideal times in O'Fallon. Scheduling during these shoulder seasons (April-May or September-October) avoids the extreme heat of summer, which can affect spray foam curing, and the deep cold of winter. It also ensures your home is prepared for peak heating and cooling seasons, and local contractors often have more availability compared to the busy summer rush.
Yes, insulation work in O'Fallon must comply with the 2018 International Energy Conservation Code (IECC), which Illinois has adopted, mandating specific R-values. The City of O'Fallon requires a building permit for major insulation projects, especially when altering the building envelope. A reputable local contractor will handle this permitting process and ensure all work meets state and local code requirements for safety and efficiency.
Look for licensed, insured contractors with specific experience in Illinois homes. Check for local references and reviews, and verify they perform a thorough energy audit or assessment before quoting. Choose a provider knowledgeable about the specific moisture and temperature challenges of our region, and ensure they clearly explain any available Illinois Clean Energy Community Foundation or utility rebates you may qualify for.