The Best Insulation Contractors in Durham, ME

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

#1

Evergreen Home Performance

4.8
(180 reviews)
Verified

A highly regarded, full-service home performance company specializing in comprehensive energy efficiency solutions. They are known for their professional audits and high-quality installation of both cellulose and spray foam insulation, making them a top-tier choice for whole-home energy upgrades.

24 Bradley Dr, Portland, ME 04102 (Serves the Durham area)

Specialties & Features

Energy efficiency audits
Spray foam insulation
Air sealing services

Business Information

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

Yankee Thermal Insulation Inc.

4.7
(90 reviews)
Verified

A dedicated insulation contractor with a strong focus on retrofitting existing homes. They have built an excellent reputation for thoroughness and expertise in blown-in cellulose and fiberglass, particularly for attic and wall insulation projects.

12 Old Brunswick Rd, Topsham, ME 04086 (Serves the Durham area)

Specialties & Features

Blown-in insulation installation
Attic insulation upgrade
Wall insulation services

Business Information

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

Allied Insulation

4.5
(70 reviews)
Verified

A well-established and reliable insulation contractor serving both residential and commercial clients. They offer a wide range of insulation types and are a solid choice for more standard projects like attic insulation, basement/crawl space encapsulation, and insulation removal.

111 John Roberts Rd #16, South Portland, ME 04106 (Serves the Durham area)

Specialties & Features

Basement and crawl space insulation
Insulation removal and replacement
Attic insulation installation

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes

Why These Are the Top Insulation Contractors in Durham

** The insulation market serving Durham, Maine, is characterized by high-quality, regional contractors rather than local, in-town providers. Due to Maine's cold climate and high heating costs, the demand for professional insulation services is strong. The competition is among established, reputable companies, leading to a generally high standard of service quality and expertise. Homeowners in Durham typically seek services to combat high energy bills, improve home comfort, and address issues like ice dams. The most common services requested are comprehensive attic insulation upgrades (often with air sealing) and basement/crawl space encapsulation to prevent heat loss and moisture problems. **Pricing** is typically at a premium, reflecting the high level of skill, specialized equipment, and quality materials required. Ballpark costs can range from **$1,500 - $4,500 for a standard attic blow-in insulation job** and **$2,000 - $7,000+ for spray foam applications**, depending on the R-value and square footage. A full energy audit usually costs **$400 - $600**, but it often qualifies for rebates and provides a roadmap for the most cost-effective upgrades. It is highly recommended that homeowners inquire about available rebates from Efficiency Maine, which all top-tier providers are knowledgeable about and can help facilitate.

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 Durham regulations and climate

Frequently Asked Questions About Insulation in Durham

Get answers to common questions about insulation services in Durham, Maine.

1What is the recommended insulation level (R-Value) for my attic in Durham, and why is it different from other parts of the country?

For Durham's cold Climate Zone 6, the U.S. Department of Energy recommends attic insulation levels of R-49 to R-60. This high recommendation is specific to Maine's long, harsh winters to prevent significant heat loss through the roof, which is a primary driver of high heating bills. Properly achieving this R-value often requires adding dense-pack cellulose or spray foam over existing insulation, a common service provided by local contractors familiar with our regional building codes.

2When is the best time of year to schedule insulation upgrades in Durham, and how far in advance should I book?

The ideal time is during the drier months of late summer and early fall (August to October), as this allows work to be completed before winter's onset and avoids the busy peak season. However, insulation can be installed year-round. Given the high demand from Durham homeowners preparing for winter, it's wise to contact local providers at least 4-8 weeks in advance to secure a spot, especially for whole-house projects like attic or basement insulation.

3Are there any local rebates or incentives in Maine to help offset the cost of insulation?

Yes, Efficiency Maine Trust offers significant rebates for homeowners who add insulation that meets their specific program requirements. For example, you can receive rebates per square foot for air sealing and insulating your attic, basement, or walls. Additionally, federal tax credits may apply. A reputable Durham-area insulation contractor will be knowledgeable about these programs and can often help you with the application process to maximize your savings.

4What should I look for when choosing an insulation contractor in the Durham area?

Prioritize contractors who are licensed and insured in Maine and have specific experience with our climate's needs. Look for companies that perform a pre-installation energy audit or assessment to identify your home's specific air leaks and weak points. It's also beneficial to choose a provider familiar with the older home stock common in Durham, as they will understand how to properly insulate historic structures while managing moisture, a critical concern in our region.

5My home has an old stone foundation or a dirt-floor cellar. Is insulating it really necessary, and what are the local considerations?

Absolutely. Uninsulated foundations and crawl spaces are a major source of cold floors, drafts, and moisture intrusion in Durham homes. Local contractors often use closed-cell spray foam for stone foundations because it acts as both an insulator and a moisture barrier. For dirt floors, a vapor barrier is installed first. Properly insulating these areas is crucial not just for comfort, but to prevent frozen pipes and protect the home's structure from Maine's freeze-thaw cycles and ground moisture.