The Best Insulation Contractors in Andover, CT

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

#1

Koala Insulation of Central Connecticut

4.9
(100 reviews)
Verified

A highly-rated, modern insulation contractor known for its comprehensive energy efficiency services. They emphasize education, offering free evaluations and specializing in both new installations and upgrading old, inefficient insulation. Their service area explicitly includes Tolland County.

They operate as a mobile service company serving Central CT, but are based out of South Windsor, CT.

Specialties & Features

Spray foam insulation
Blown-in insulation
Insulation removal and replacement

Business Information

Years in Business:5 years
Licensed:Yes
Insured:Yes
#2

GNH Insulation

4.8
(150 reviews)
Verified

A long-standing, family-owned insulation specialist with a stellar reputation across Connecticut and Western Massachusetts. They are known for their expertise, professionalism, and deep knowledge of building science and local energy rebate programs.

6 Deming Rd, Berlin, CT 06037 (Serves the entire state, including Andover)

Specialties & Features

Spray foam insulation
Basement and crawl space insulation
Energy efficiency audits

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes
#3

Connecticut Insulation

4.7
(80 reviews)
Verified

A dedicated insulation contractor focused on improving home comfort and reducing energy bills. They offer a full suite of insulation services and are well-versed in tackling the specific challenges of New England homes, from old stone walls to modern builds.

35 N Plains Industrial Rd, Wallingford, CT 06492 (Services extend to Tolland County)

Specialties & Features

Attic insulation installation and upgrade
Wall insulation services
Air sealing services

Business Information

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

Why These Are the Top Insulation Contractors in Andover

** The insulation market serving Andover, CT, is characterized by high-quality, regional specialists rather than a high volume of local, in-town competitors. As a rural community with a mix of historic and newer homes, the demand is for contractors who understand New England's climate, aging building stock, and the importance of comprehensive air sealing alongside insulation. **Average Quality:** The bar for quality is high. Homeowners in this area are typically well-informed and seek out established, professional companies with certifications (like BPI) and a proven track record. The leading contractors use high-grade materials and modern installation techniques. **Competition Level:** Moderate. While there are not dozens of companies directly in Andover, there is strong competition among the top regional players (like those listed) for the business of Andover residents. This competition generally benefits the consumer through competitive pricing and a focus on customer service. **Typical Pricing:** Pricing is in line with regional averages for New England. As a rough guide: * **Blown-in Cellulose/Fiberglass Attic Insulation:** $1,500 - $4,500+ * **Spray Foam Insulation (closed-cell):** $1.50 - $3.00+ per board foot (highly variable based on project complexity). * **Whole-House Air Sealing & Insulation Upgrade:** $5,000 - $15,000+. It is highly recommended that homeowners obtain 2-3 detailed quotes, as prices can vary significantly based on the home's size, existing conditions, accessibility, and the chosen materials. Many of these top providers assist customers in navigating available state and utility rebates (e.g., through the Energize CT program), which can substantially offset the final cost.

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 Andover regulations and climate

Frequently Asked Questions About Insulation in Andover

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

1What is the most cost-effective type of insulation for my older Andover home, and are there any local incentives to help with the cost?

For Andover's many historic and older homes, air sealing combined with blown-in cellulose or fiberglass insulation in attics and walls is often the most cost-effective upgrade. This directly combats our cold winters and humid summers. Connecticut homeowners should explore rebates from the Energize CT program, which offers significant incentives for insulation upgrades that improve energy efficiency, and some local providers can help you navigate the application process.

2When is the best time of year to install insulation in Andover, and how long does a typical project take?

Late summer and early fall are ideal for insulation projects in Andover, as attics are less extreme to work in and you can seal your home before winter. However, most types of insulation can be installed year-round. The timeline depends on scope; a simple attic insulation job may take one day, while a full-home air sealing and retrofit for walls and basement could take 2-4 days for a typical single-family home.

3Are there specific insulation concerns or regulations I should know about for homes in Andover, CT?

Yes, two key local considerations are moisture control and historical integrity. Andover's climate requires proper vapor barriers and ventilation strategies to prevent mold in our humid summers. Furthermore, if your home is in a historic district, there may be guidelines for exterior work. Always use a licensed Connecticut contractor who understands state building codes (CT State Building Code) and can pull necessary permits from the Andover Town Hall.

4How do I choose a reliable insulation contractor in the Andover area?

Look for contractors who are licensed and insured in Connecticut and have specific experience with homes in our region. Ask for local references in Andover or nearby towns like Hebron or Columbia. A reputable provider should offer a detailed energy audit or assessment using tools like a blower door test to identify your home's specific air leaks and insulation needs before giving a quote.

5My house feels drafty in winter. Should I add more insulation or focus on air sealing first?

For Andover homes, air sealing is the critical first step. Adding insulation on top of significant drafts and air leaks is less effective and can trap moisture, leading to problems. A professional assessment will target leaks around windows, doors, attic hatches, and wiring penetrations. Once sealed, adding insulation to recommended Connecticut levels (often R-49 to R-60 for attics) will provide maximum comfort and energy savings year-round.