The Best Insulation Contractors in Plymouth, ME

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

#1

Evergreen Home Performance

4.8
(180 reviews)
Verified

A leading energy efficiency and insulation contractor in Maine, known for comprehensive home performance solutions. They are a top choice for homeowners seeking to reduce energy bills through advanced air sealing and insulation techniques. They are certified by the Building Performance Institute (BPI) and are well-versed in local utility rebates.

226 Target Industrial Circle, Bangor, ME 04401 (Serves the Plymouth area)

Specialties & Features

Energy efficiency audits
Spray foam insulation
Air sealing services

Business Information

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

Seal Tight Insulation

4.7
(90 reviews)
Verified

A specialized insulation contractor focused on delivering high-quality blown-in and spray foam applications. They have a strong reputation for professionalism and effectiveness in both new construction and retrofit projects throughout central Maine.

22 Elm Street, Dexter, ME 04930 (Serves the Plymouth area)

Specialties & Features

Blown-in insulation installation
Spray foam insulation
Attic insulation installation and upgrade

Business Information

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

Maine Spray Foam Insulation

4.6
(70 reviews)
Verified

As the name implies, this provider is a specialist in spray foam applications but also offers a full suite of other insulation services. They are praised for their expertise in creating tight building envelopes and insulating challenging areas like crawl spaces and basements.

499 Middle Road, Newport, ME 04953 (Serves the Plymouth area)

Specialties & Features

Spray foam insulation
Basement and crawl space insulation
Insulation removal and replacement

Business Information

Years in Business:8 years
Licensed:Yes
Insured:Yes

Why These Are the Top Insulation Contractors in Plymouth

** The insulation market serving Plymouth, Maine, is characterized by a handful of high-quality, regional specialists rather than a high volume of local competitors. Due to Maine's cold climate, the demand for effective insulation is high, driving a market focused on energy performance and expertise rather than low-cost, basic installation. * **Average Quality:** The quality is generally high, with leading contractors holding professional certifications (like BPI) and emphasizing air sealing as a critical component of any insulation upgrade, reflecting modern building science principles. * **Competition Level:** Moderate. While there aren't dozens of companies, the existing providers are established, reputable, and compete on service quality, expertise, and knowledge of rebate programs (e.g., from Efficiency Maine) rather than just price. * **Typical Pricing:** Pricing is at a premium compared to national averages, reflecting the specialized skills required, the cost of high-performance materials (especially spray foam), and the logistical costs of serving a rural region. Homeowners should expect to invest several thousand dollars for a comprehensive attic insulation and air sealing project, with spray foam projects representing a higher initial investment with significant long-term energy savings.

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 Plymouth regulations and climate

Frequently Asked Questions About Insulation in Plymouth

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

1What is the recommended R-value for attic insulation in a Plymouth home, and why is it so important for our climate?

For our cold Maine climate zone (Zone 6), the U.S. Department of Energy recommends an attic insulation R-value of R-49 to R-60. This high level is critical in Plymouth to combat our long, severe winters, minimizing heat loss through the roof, reducing ice dam formation, and significantly lowering heating bills, which are a major household expense here.

2When is the best time of year to get insulation installed in Plymouth, and are there seasonal pricing differences?

The ideal time is late summer through early fall. This allows work to be completed before winter sets in, and attic spaces are more comfortable for installers. While some contractors may offer off-season (spring) promotions, demand and pricing are highest in late fall as homeowners rush to prepare for winter. Scheduling ahead is key to securing a spot.

3Are there any local Maine rebates or incentives for upgrading my home's insulation in Plymouth? **Question:** Are there any local Maine rebates or incentives for upgrading my home's insulation in Plymouth?

Yes. Efficiency Maine Trust, our state's energy efficiency program, offers rebates for insulation upgrades that meet their specifications. Additionally, you may qualify for federal tax credits. A reputable local insulation contractor will be familiar with these programs and can often help guide you through the application process to maximize your savings.

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

Look for a licensed and insured contractor with specific experience in Maine's climate. Ask for local references in towns like Plymouth, Dexter, or Corinth, and verify they understand critical regional issues like proper attic ventilation to prevent ice dams. Membership in the Maine Insulation and Green Building Council is also a strong indicator of professionalism and updated knowledge.

5My older Plymouth home feels drafty. Should I focus on attic insulation or air sealing first?

Air sealing is the absolute first priority, especially in Maine's older housing stock. Sealing gaps, cracks, and bypasses in the attic and basement prevents warm, moist indoor air from escaping into cold cavities, which is the primary cause of ice dams and reduces insulation effectiveness. A quality local contractor will perform a thorough air sealing audit before adding any new insulation.