Compare the highest-rated insulation professionals in Markham, Illinois. All contractors are licensed, insured, and verified through our rigorous screening process.
A highly-rated, specialized contractor focusing primarily on attic services, including insulation, air sealing, and ventilation. They are known for their thorough energy efficiency approach and expertise in handling complex projects like historical homes. They are a certified contractor for the ComEd Energy Efficiency Program.
A full-service insulation company with a strong focus on modern solutions like spray foam and cellulose. They are recognized for their professional crews, detailed energy audits, and knowledge of local and federal rebate programs. They serve the entire Chicagoland region, including Markham.
A well-established local contractor with a broad service range, from new construction to retrofit projects. They have extensive experience with all types of insulation materials and are frequently hired for basement, crawl space, and wall insulation projects. Customer reviews consistently praise their reliability and fair pricing.
** The insulation market in Markham, IL, is a competitive mix of small local operators and established regional companies from surrounding suburbs like Oak Forest, Posen, and Tinley Park. The overall quality is high, as contractors must adhere to strict Chicagoland building codes and are often well-versed in the ComEd and Nicor Gas rebate programs, which are a significant driver for energy efficiency upgrades. Competition is robust, which benefits homeowners through competitive pricing and a focus on customer service. Typical pricing varies significantly based on the project scope and material. As a rough guide: * **Blown-in Attic Insulation:** $1,500 - $3,500 * **Spray Foam (Open Cell) for Attic:** $3,500 - $7,500+ * **Wall Insulation (Blown-in):** $2,000 - $4,500 * **Basement Insulation (Spray Foam):** $2,500 - $6,000 Homeowners in Markham are advised to obtain multiple quotes and verify that contractors are licensed, insured, and provide detailed assessments that include potential energy savings and available rebates.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Markham regulations and climate
Get answers to common questions about insulation services in Markham, Illinois.
For our cold Illinois winters and humid summers, a comprehensive air sealing and attic insulation upgrade is often the highest priority. Properly air sealing gaps and adding sufficient attic insulation (typically to R-49 or higher) prevents warm air from escaping in winter and hot, humid air from infiltrating in summer, directly combating our significant seasonal temperature swings and reducing energy bills year-round.
Yes, Illinois homeowners can access significant incentives through the Illinois Home Performance with ENERGY STAR program and ComEd's Energy Efficiency Program. These programs offer rebates for air sealing and adding insulation that meets specific performance standards. A qualified local insulation contractor registered with these programs can help you apply and ensure the work qualifies.
While insulation can be installed year-round, the ideal periods are late spring (May-June) and early fall (September-October). These seasons typically offer mild, dry weather in the Chicago area, which is optimal for attic work and allows for proper home preparation before the extreme cold of winter sets in. Scheduling during these off-peak times may also provide better contractor availability.
Always verify that the contractor is licensed, insured, and has strong local references. Specifically, look for a company experienced with the common housing styles in our area, such as older bungalows or mid-century homes, and one that performs a pre-installation energy audit. It's also wise to choose a contractor who is a certified installer for major insulation manufacturers (like Owens Corning or Johns Manville) to ensure product warranties are valid.
In nearly all cases, especially in older Markham homes, professional air sealing *must* be done first. Adding insulation on top of leaks and drafts is like wearing a sweater with holes in it; you'll still lose conditioned air. A proper insulation project starts with sealing gaps around plumbing, wiring, chimneys, and recessed lights in the attic and basement rim joists, which are major sources of drafts in our region.