The Best Insulation Contractors in Old Mystic, CT

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

#1

Shoreline Insulation & Home Performance

4.8
(180 reviews)
Verified

A leading provider of comprehensive home insulation and energy efficiency solutions in Southeastern CT. They are well-regarded for their professional energy audits and expertise in both spray foam and blown-in cellulose. Their strength lies in creating customized whole-home performance packages that address air sealing, insulation, and ventilation.

295B N. Main Street, Mystic, CT 06355

Specialties & Features

Energy efficiency audits
Spray foam insulation
Air sealing services

Business Information

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

Stonington Insulation Company

4.7
(110 reviews)
Verified

A specialized contractor with a strong local presence in the Stonington area, which includes Old Mystic. They focus primarily on insulation installation and removal across all areas of the home. They are known for their meticulous workmanship and knowledge of local building codes and historic home requirements.

12 Liberty Way, Westerly, RI 02891 (Serves Old Mystic, CT)

Specialties & Features

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

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes
#3

Connecticut Energy Audits

4.6
(90 reviews)
Verified

This company takes a diagnostic-first approach, starting with advanced energy audits to identify the root causes of energy loss. They then provide targeted insulation and air sealing services, particularly for basements, crawl spaces, and attics. They are experts in accessing state and utility rebates for homeowners.

1255 Poquonnock Rd, Groton, CT 06340

Specialties & Features

Basement and crawl space insulation
Energy efficiency audits
Wall insulation services

Business Information

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

Why These Are the Top Insulation Contractors in Old Mystic

The insulation market in and around Old Mystic, CT, is characterized by a mix of specialized local contractors and larger regional players serving the broader New London County area. The quality of service is generally high, with several providers holding Building Performance Institute (BPI) certifications, reflecting a focus on comprehensive home performance rather than just material installation. Competition is moderate but healthy, driving good customer service and quality work. The local housing stock, which includes a significant number of historic and older homes, demands contractors with expertise in managing moisture, ventilation, and complex retrofits. Typical pricing for a full attic insulation job with air sealing can range from $2,500 to $5,500, while spray foam applications are a premium service, often costing $4,500 to $9,000+ depending on the scope. Homeowners are increasingly leveraging state energy efficiency rebates and financing programs, which the top-tier providers are adept at navigating.

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 Old Mystic regulations and climate

Frequently Asked Questions About Insulation in Old Mystic

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

1What are the most important types of insulation for my Old Mystic home given our local climate?

For our humid summers and cold, damp winters, a focus on air sealing and moisture-resistant insulation is key. We highly recommend spray foam for its superior air barrier properties or dense-packed cellulose for its excellent performance and mold resistance in attics and wall cavities. Properly insulating your basement or crawlspace is also critical in our coastal climate to prevent cold floors and moisture issues.

2How does the timing of insulation work in Southeastern Connecticut, and is there a best season for installation?

While insulation can be installed year-round, late spring and early fall are often ideal in Old Mystic, as attics aren't unbearably hot nor are crews battling deep winter cold. However, scheduling ahead is crucial, as these are peak periods. For urgent heat loss issues, winter installations are absolutely possible, and addressing air leaks before the heating season begins can lead to immediate savings on your Eversource or UI bills.

3What should I look for when choosing an insulation contractor in the Old Mystic/Groton area?

Always verify the contractor is licensed and insured in Connecticut. Look for companies with specific experience in our older New England housing stock, as many homes in the area have unique challenges like stone foundations or historic features. Ask for local references and ensure they perform a thorough energy audit or assessment using tools like a blower door test to pinpoint your home's specific needs rather than offering a one-size-fits-all solution.

4My home feels drafty and my energy bills are high. Where should I prioritize adding or upgrading insulation?

In our climate zone, the attic is almost always the top priority, as heat rises and escapes there most readily. After the attic, focus on sealing air leaks around windows, doors, and penetrations (the "building envelope"), followed by insulating basement rim joists and crawlspaces. For a precise plan, invest in a professional home energy assessment, which will use infrared imaging to show you exactly where your Old Mystic home is losing energy.