Compare the highest-rated insulation professionals in Plymouth, Massachusetts. All contractors are licensed, insured, and verified through our rigorous screening process.
A highly-rated, family-owned and operated insulation specialist serving the South Shore and Cape Cod, including Plymouth, for over two decades. They are known for their personalized service, deep knowledge of local building practices, and focus on comprehensive home performance solutions that combine air sealing with insulation.
While based slightly outside Plymouth, this company is a leader in the region for whole-home energy efficiency upgrades. They are a certified Mass Save® partner, which is a critical differentiator, as they can provide access to significant rebates and 0% financing for qualifying insulation projects. Their process is highly professional and includes pre- and post-installation energy audits.
A specialized contractor focusing on the unique challenges of coastal Massachusetts homes, including moisture management in basements and crawl spaces, and insulating older homes. They offer a full range of insulation types and are praised for their clean work and expertise in complex removal and replacement projects.
The insulation market in Plymouth, Massachusetts, is robust and competitive, characterized by a mix of local specialized contractors and larger regional energy efficiency companies. The average quality of service is high, as the demanding coastal climate and high energy costs compel contractors to be knowledgeable and effective. **Competition Level:** Moderate to High. Homeowners have several excellent options, but the most sought-after providers (particularly Mass Save® partners) often have waiting lists due to high demand fueled by state-sponsored rebates. **Typical Pricing:** Pricing is above the national average, reflecting the higher cost of living and labor in Massachusetts. However, the Mass Save® program dramatically reduces the net cost for many homeowners. * **Blown-in Cellulose Attic Insulation:** $1,500 - $3,500 (post-rebate can be 75-100% covered). * **Spray Foam Insulation (closed-cell):** $3.50 - $7.50 per board foot (highly dependent on project complexity and accessibility). * **Wall Insulation (drill and fill):** $2,000 - $5,000+ for an average home. The key driver in this market is the **Mass Save® program**. Contractors who are partners in this program are in particularly high demand, as they can offer energy assessments and significant financial incentives, making comprehensive insulation upgrades much more affordable for Plymouth residents.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Plymouth regulations and climate
Get answers to common questions about insulation services in Plymouth, Massachusetts.
For Plymouth's cold, damp, and windy climate, air sealing and adding attic insulation are the most critical first steps. Many historic and older homes here have little to no insulation in the walls or attic. We recommend bringing attic insulation up to at least R-49 (about 16-18 inches of blown-in cellulose or fiberglass) to meet Massachusetts building code recommendations for our climate zone (Zone 5). Addressing air leaks around windows, doors, and sill plates is equally vital to stop the cold drafts common in our coastal area.
Plymouth's coastal location means dealing with higher humidity, salt air, and nor'easters. This makes moisture resistance a top priority. We often recommend materials like closed-cell spray foam for basement rim joists and crawlspaces, as it creates both an insulation and an air/moisture barrier. For attics and walls, damp-spray cellulose is an excellent choice as it manages moisture well. Proper ventilation is also crucial to prevent mold and mildew in our humid summers and damp winters.
Yes, Massachusetts offers excellent incentives primarily through the Mass Save® program. As a Plymouth homeowner, you can get a no-cost home energy assessment, which includes free air sealing and heavily discounted insulation—often covering 75-100% of the project cost. Additionally, Plymouth residents may qualify for federal tax credits for certain insulation materials. We always recommend scheduling a Mass Save assessment first, as it's a required step to access these substantial subsidies.
The ideal time is late spring through early fall (May to October). This allows for attic work without extreme heat and ensures projects are completed before the harsh winter sets in. Most whole-house insulation projects (attic, walls, basement) take 1-3 days. However, scheduling with a qualified contractor early is key, as demand spikes in the fall. Off-season (winter) installations are possible for interior areas like basements but can be more complex for attics if there's ice or snow.
First, ensure they are a licensed Massachusetts Construction Supervisor and a certified Mass Save® partner—this is essential for you to access incentives. Look for local experience with our specific housing stock, from historic Colonials to modern builds. Ask for proof of insurance and check reviews on local platforms. A reputable Plymouth contractor will provide a detailed quote, explain the recommended R-values for our climate zone, and handle all necessary permits with the Town of Plymouth Building Department.