Compare the highest-rated insulation professionals in Hazelwood, Missouri. All contractors are licensed, insured, and verified through our rigorous screening process.
A leading local contractor specializing in comprehensive home performance upgrades. They are highly regarded for their expertise in spray foam and blown-in cellulose, and they emphasize pairing insulation with professional air sealing for maximum energy efficiency. They are a go-to provider for energy audits and rebate guidance.
A well-established company with a strong focus on both residential and commercial insulation. They offer a wide range of services, from traditional batt insulation to advanced foam solutions. Their long tenure in the St. Louis market indicates deep knowledge of local building codes and climate-specific needs.
Part of a national brand with a local franchise owner, Koala is praised for its exceptional customer service and detailed, transparent quoting process. They specialize in eco-friendly insulation options and are experts in attic insulation upgrades and air sealing for older homes in the area.
** The insulation market in Hazelwood and the greater St. Louis area is robust and competitive, driven by the region's distinct seasonal climate with hot, humid summers and cold winters. The average quality of service is high, with several long-standing, reputable contractors. Homeowners are increasingly aware of energy efficiency, leading to high demand for services like air sealing and spray foam insulation. Competition helps keep pricing fair, but it varies significantly based on the project scope and material. **Typical Pricing:** * **Blown-In Attic Insulation:** $1,500 - $2,800 * **Spray Foam (Open Cell) for Attic:** $2,500 - $4,500+ * **Wall Insulation (Blown-In):** $1,000 - $2,500 per wall * **Air Sealing:** $500 - $1,500 Many providers offer free inspections and quotes. It is also common for reputable companies to help homeowners navigate available utility rebates from providers like Ameren Missouri, which can offset the project's final cost.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Hazelwood regulations and climate
Get answers to common questions about insulation services in Hazelwood, Missouri.
For our humid continental climate with hot summers and cold winters, blown-in fiberglass or cellulose insulation in attics is highly cost-effective for retrofits, providing excellent thermal performance and moisture management. Spray foam offers superior air sealing for new constructions or major renovations, though at a higher upfront cost. The best choice depends on your home's age, existing insulation, and specific air leakage issues common in Hazelwood's varied housing stock.
The ideal times are late spring (April-May) and early fall (September-October) to avoid St. Louis County's extreme summer heat and winter cold, allowing for proper attic ventilation during installation. Most single-area projects like attic insulation can be completed in one day, while whole-house air sealing and insulation may take 2-3 days. Scheduling in these shoulder seasons also ensures better availability from local contractors.
Hazelwood follows the 2018 International Residential Code (IRC) adopted by Missouri, which specifies required R-values for different home areas (e.g., R-49 for attics). Crucially, Spire Missouri (formerly Laclede Gas) and Ameren Missouri offer significant rebates for adding insulation and air sealing, which can offset 25-50% of project costs. A qualified local installer will be familiar with both the codes and the rebate application process.
Look for licensed, insured contractors with specific experience in Missouri's climate and a strong local reputation in North St. Louis County. Verify they perform a pre-installation energy assessment (often a requirement for utility rebates) and provide detailed quotes that include air sealing. Check for memberships in local associations like the St. Louis HBA and read verified reviews about their post-installation service and cleanup.
While adding attic insulation to meet the recommended R-49 is crucial, air sealing is often the more critical first step for older homes in our area. Gaps, cracks, and bypasses in the attic floor and around penetrations allow conditioned air to escape and humid outdoor air to enter, undermining insulation performance. A professional assessment will identify these leakage points; a combination of air sealing and added insulation is typically the most effective solution for comfort and energy savings.