Compare the highest-rated insulation professionals in Green Harbor, Massachusetts. All contractors are licensed, insured, and verified through our rigorous screening process.
A highly-rated, local provider specializing in comprehensive home energy solutions. They are known for their expertise in both spray foam and blown-in cellulose, particularly for coastal homes where moisture control and air sealing are critical. They offer energy audits and are well-versed in Mass Save® rebates.
This company focuses heavily on the home performance and energy audit side, using diagnostics like blower door tests to identify air leaks before proposing insulation solutions. They are a leading contractor for the Mass Save® program and specialize in whole-home insulation upgrades and air sealing.
A well-established contractor with a strong reputation for reliability and quality workmanship across all types of insulation. They offer a wide range of services from attic and wall insulation to basement and crawl space encapsulation, making them a versatile choice for any project.
The insulation market in the Green Harbor and greater Marshfield area is robust and competitive, driven by the region's cold winters, high energy costs, and a housing stock that includes many older homes lacking modern energy standards. The average quality of service is high, with several contractors holding advanced certifications like BPI (Building Performance Institute) and being Mass Save® partners, which is a significant factor for homeowners seeking rebates and financing. Competition is strong among the top-tier providers, who differentiate themselves through specialized expertise (e.g., coastal moisture management, advanced air sealing diagnostics) rather than just price. Typical pricing is in line with the greater Boston area, which is above the national average. A standard attic blown-in cellulose insulation project for a 1,200 sq ft home might range from $1,500 to $3,000, but this can vary significantly based on existing insulation, the need for removal, and the desired R-value. Spray foam is a premium option, often costing two to three times more than cellulose or fiberglass. The widespread availability of Mass Save® rebates and HEAT loans heavily influences the market, making comprehensive energy upgrades financially accessible for many homeowners.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Green Harbor regulations and climate
Get answers to common questions about insulation services in Green Harbor, Massachusetts.
For Green Harbor's damp, windy, and cold winters, air sealing and adding insulation to the attic are the most critical first steps. This prevents warm, moist indoor air from escaping into the attic where it can condense and cause mold, while also blocking the coastal winds that drive infiltration. We also frequently recommend insulating basement rim joists and crawlspaces to combat the pervasive chill and humidity from the ground.
Massachusetts has strict energy codes (currently 9th Edition) that set minimum R-value requirements for new work and renovations, which a reputable contractor will follow. More importantly, as a Green Harbor homeowner, you are eligible for the Mass Save program, which offers no-cost home energy assessments and significant rebates (often 75-100% off) for approved insulation upgrades, making it a very cost-effective investment.
While insulation can be installed year-round, the ideal periods are late spring (May-June) and early fall (September-October). These times typically avoid the peak summer humidity, which can complicate certain installations, and the deep winter cold. Scheduling during these shoulder seasons also ensures your home is fully prepared for the harsh Plymouth County winter, and contractor availability is usually better.
Always verify the contractor is licensed in Massachusetts as a Construction Supervisor (for major work) and, crucially, is a Mass Save Partner. This ensures they are qualified to perform work that qualifies for rebates. Look for local experience with coastal homes, specifically in managing moisture issues, and ask for references from recent projects in nearby towns like Marshfield or Duxbury.
Absolutely. For our humid climate, moisture-resistant materials are key. Closed-cell spray foam provides an excellent air and vapor barrier, while dense-packed cellulose is a good breathable option for walls. We generally advise against using standard fiberglass batts in exterior walls of older coastal homes without a perfect air barrier, as they can trap moisture against the sheathing. A professional assessment will determine the best strategy for your specific house.