The Best Insulation Contractors in Wilmington, IL

Compare the highest-rated insulation professionals in Wilmington, Illinois. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

Allstar Insulation, Inc.

4.8
(180 reviews)
Verified

A family-owned and operated business with a strong focus on residential insulation and energy efficiency. They are highly regarded for their professional crews, clear communication, and expertise in both new and retrofit insulation projects. They emphasize solving comfort and high-energy bill issues.

1125 Arrowhead Ct, New Lenox, IL 60451

Specialties & Features

Spray foam insulation
Blown-in attic insulation
Crawl space encapsulation

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#2

EcoMasters Insulation & Energy Solutions

4.7
(150 reviews)
Verified

EcoMasters positions itself as an energy solutions company first, with insulation as a core service. They are known for conducting comprehensive energy audits to diagnose home performance issues before proposing solutions. This data-driven approach is popular with homeowners seeking maximum efficiency.

1034 Rose Rd, Plainfield, IL 60586

Specialties & Features

Energy efficiency audits
Air sealing services
Insulation removal and replacement

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes
#3

A-1 Insulation

4.6
(90 reviews)
Verified

A well-established contractor with a broad service range covering both residential and commercial properties. They have extensive experience with various insulation types and are recognized for their reliability and knowledge of local building codes and potential utility rebates.

1615 Maple Ave, Joliet, IL 60432

Specialties & Features

Batt insulation for walls
Basement insulation
Insulation removal

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes

Why These Are the Top Insulation Contractors in Wilmington

The insulation market serving Wilmington, IL, is characterized by a handful of highly specialized local and regional contractors, rather than a high volume of national chains. The competition is moderate but of generally high quality, with the top providers boasting excellent reputations. These companies typically serve a wide area encompassing Will County and Grundy County. Homeowners in Wilmington often seek insulation services for older housing stock common in the area, dealing with issues like drafty walls, inefficient attics, and damp basements. There is a strong and growing emphasis on whole-home energy efficiency, leading to increased demand for services like air sealing and energy audits alongside standard insulation installation. **Typical Pricing:** Pricing is competitive but aligns with the Chicago metropolitan area's cost structure. As a rough guide: * **Blown-In Attic Insulation:** $1,500 - $4,500 * **Spray Foam Insulation (Attic):** $3,500 - $7,500+ * **Wall Insulation (Blown-in):** $2,000 - $5,000 * **Air Sealing:** $500 - $2,000 It is highly recommended that Wilmington residents obtain at least two to three quotes and verify that any contractor is properly licensed and insured before commencing work. Many of these top providers are well-versed in available rebate programs from local utilities like ComEd, which can significantly offset project costs.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Wilmington regulations and climate

Frequently Asked Questions About Insulation in Wilmington

Get answers to common questions about insulation services in Wilmington, Illinois.

1What is the recommended R-value for attic insulation in my Wilmington home, and why is it specific to our area?

For Wilmington's humid continental climate with cold winters and hot summers, the U.S. Department of Energy recommends an attic R-value of R-49 to R-60. This high level is crucial to combat significant temperature extremes, reducing heat loss in bitter winter winds coming off the nearby Kankakee River and keeping sweltering summer heat from penetrating your living spaces, which directly improves comfort and energy efficiency.

2How much does insulation installation typically cost for a house in Wilmington, IL?

Costs vary based on home size, material (like fiberglass batts or blown-in cellulose), and the area being insulated (attic, walls, crawlspace). For a standard attic upgrade in a 1,500 sq ft Wilmington home, homeowners can expect a typical range of $1,500 to $3,500. Regional material costs and the prevalence of older homes needing air sealing can influence the final price, so getting a detailed, in-home assessment from a local contractor is essential for an accurate quote.

3When is the best time of year to get insulation installed in Wilmington?

While insulation can be installed year-round, the ideal times are late spring (May-June) and early fall (September-October). These periods typically offer milder temperatures in Wilmington, making it easier for contractors to work effectively in your attic and for your HVAC system to be tested properly. Scheduling during these shoulder seasons also helps you prepare your home's thermal envelope before the peak heating and cooling demands of our Illinois winter and summer.

4Are there any local rebates or incentives for upgrading insulation in Wilmington?

Yes, Wilmington homeowners should first check for incentives from their local utility provider, such as ComEd or Nicor Gas, which often offer rebates for energy-efficient upgrades. Additionally, the state of Illinois' Home Weatherization Assistance Program (IHWAP) may provide assistance for income-qualifying residents. It's always wise to ask your local insulation contractor, as they are usually informed about current available programs to help offset project costs.

5What should I look for when choosing a reliable insulation contractor in the Wilmington area?

Prioritize contractors who are licensed, insured, and have strong local references in Will County. Choose a provider who conducts a thorough energy audit or assessment, explains options suitable for our climate, and provides a detailed written estimate. Be wary of door-to-door sales with high-pressure tactics; reputable local companies are established in the community and will clearly discuss building codes, proper ventilation for our humid summers, and the importance of air sealing alongside insulation.