The Best Insulation Contractors in Windham, CT

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

#1

Connecticut Basement Systems

4.8
(250 reviews)
Verified

A leading regional contractor specializing in making homes more energy-efficient and comfortable. They are part of a nationally recognized franchise network, ensuring high standards, extensive training, and robust warranties. Their expertise in moisture control and basement/crawl space encapsulation is a significant strength that complements their insulation services.

35 John DiIorio Dr, Windham, CT 06256

Specialties & Features

Basement and crawl space insulation
Spray foam insulation
Air sealing services

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes
#2

Supreme Insulation LLC

4.7
(180 reviews)
Verified

A locally owned and operated insulation specialist known for personalized service and high-quality workmanship. They focus exclusively on insulation, which allows for deep expertise in all installation methods. They are particularly praised for their clean work and effectiveness in improving home comfort and reducing energy bills.

12 Tuckie Rd, North Windham, CT 06256

Specialties & Features

Blown-in insulation installation
Attic insulation installation and upgrade
Insulation removal and replacement

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#3

Airtight Solutions Inc.

4.6
(120 reviews)
Verified

This provider excels at comprehensive home performance upgrades. They take a building science approach, first identifying air leaks and then recommending the optimal combination of air sealing and insulation. They are well-versed in available rebates and energy efficiency programs in Connecticut.

Serves Windham from their base in Mansfield, CT 06250

Specialties & Features

Energy efficiency audits
Air sealing services
Wall insulation services

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes

Why These Are the Top Insulation Contractors in Windham

** The insulation market in Windham, CT, is characterized by a mix of a few highly specialized local contractors and several larger regional companies that serve the area from surrounding hubs like Mansfield and Willimantic. The housing stock includes a significant number of older homes (pre-1980s), which creates a strong demand for insulation upgrades, air sealing, and historical retrofit expertise. Competition is moderate but healthy, driving a focus on quality and customer service. Typical pricing is in line with Connecticut averages, which are above the national median due to higher labor and material costs. As a rough guide: * **Blown-In Cellulose/Attic Insulation:** $1,500 - $4,500 * **Spray Foam Insulation (closed-cell):** $1.50 - $3.50 per board foot * **Whole-House Air Sealing & Insulation Audit:** $300 - $600 (often applied to the cost of subsequent work) Homeowners in Windham are generally proactive about energy efficiency due to the state's high utility costs and the availability of incentives through programs like the Energize CT Home Energy Solutions assessment, which many of these top providers are qualified to perform.

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 Windham regulations and climate

Frequently Asked Questions About Insulation in Windham

Get answers to common questions about insulation services in Windham, Connecticut.

1What are the most important types of insulation for Windham, CT homes given our local climate?

For Windham's cold winters and humid summers, a combination of air sealing and high-R-value insulation is critical. We prioritize attic insulation (often blown-in cellulose or fiberglass to R-49 or higher) and basement or crawlspace insulation to prevent cold floors. Proper air sealing is equally important to manage moisture and stop the drafts common in our region's older homes, preventing ice dams and improving summer cooling efficiency.

2How much does insulation installation typically cost for a home in Windham, and are there any local incentives?

Costs vary by home size and project scope, but a full attic insulation upgrade in Windham typically ranges from $1,500 to $3,500. Critically, Connecticut homeowners can access significant incentives through the EnergizeCT Home Energy Solutions program, which offers audits and rebates that can cover a substantial portion of the cost. Local providers can help you navigate these state-sponsored programs to maximize your savings.

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

While insulation can be installed year-round, the ideal times are late spring (May-June) and early fall (September-October). These periods typically offer mild, dry weather in Eastern Connecticut, which is optimal for attic work and allows for proper material installation. Scheduling during these shoulder seasons also ensures your home is prepared before the peak heating season, though reputable local contractors are equipped for winter installations if needed.

4What should I look for when choosing an insulation contractor in Windham?

Always verify the contractor is licensed and insured in Connecticut. Look for a provider experienced with Windham's mix of historic and modern homes, as techniques differ. Choose a company that conducts a thorough energy audit first and is an authorized contractor for the EnergizeCT program, ensuring they follow state standards and can help you secure rebates. Local references and familiarity with regional building codes are also key.

5My older Windham home feels drafty and has high heating bills. Will adding more insulation to the walls help?

For many older homes in Windham, the primary issue is air leakage, not just insufficient wall insulation. A professional energy audit is the essential first step to identify the biggest problems, which are often gaps around windows, doors, and sill plates. In some cases, dense-pack cellulose or injection foam can be added to existing wall cavities, but air sealing the attic and basement often provides a faster, more cost-effective return on investment for our climate.