Compare the highest-rated insulation professionals in Somerville, Massachusetts. All contractors are licensed, insured, and verified through our rigorous screening process.
A highly-rated, full-service home performance contractor specializing in insulation, air sealing, and energy efficiency upgrades. They are a Mass Save partner, which is critical for homeowners seeking rebates and no-cost energy assessments. Their team is well-versed in the challenges of Somerville's older home stock.
As the name implies, this provider focuses heavily on comprehensive energy-saving solutions. They are a leading Mass Save partner contractor and excel at whole-home insulation projects that include attic, wall, and basement systems. They are known for their detailed audits and professional installation crews.
A specialized contractor focused exclusively on insulation services. They offer a wide range of insulation types, including fiberglass, cellulose, and spray foam. They are recognized for their expertise in tackling difficult projects in existing homes, such as blown-in wall insulation and complex attic configurations.
** The insulation market in Somerville is highly competitive and quality-driven, largely influenced by the city's dense concentration of older, inefficient homes (many over 100 years old) and the robust Mass Save program. The average quality of service providers is high, as the market demands expertise in retrofitting historic buildings while adhering to modern energy codes. **Competition Level:** High. There are numerous contractors, but the top tier is dominated by established, licensed, and insured companies that are partners with the Mass Save program. This partnership is a key differentiator for consumers seeking significant rebates and financing options. **Typical Pricing:** Pricing is above the national average due to high labor and material costs in the Boston area. However, Mass Save rebates can cover 75-100% of the cost for eligible homeowners, making upgrades highly accessible. * **Blown-In Cellulose/Fiberglass Attic Insulation:** $1,500 - $4,500 (post-rebate) * **Spray Foam Insulation (Closed Cell):** $3.50 - $7.50 per board foot * **Whole-Home Air Sealing & Insulation:** $5,000 - $15,000+ (highly variable based on home size and scope, but significantly offset by Mass Save incentives) The market strongly favors contractors who can navigate the Mass Save process, perform professional energy audits, and provide solutions that address both insulation and air leakage.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Somerville regulations and climate
Get answers to common questions about insulation services in Somerville, Massachusetts.
For Somerville's many historic homes (pre-1940s), air sealing and adding dense-pack cellulose or spray foam insulation in walls and attics are critical. Our cold, humid winters and hot summers demand a tight thermal envelope to prevent heat loss, ice dams, and moisture issues like mold. Properly insulating the attic floor is often the top priority to stop warm air from escaping and melting roof snow.
Costs vary widely by project, but full attic insulation can range from $1,500 to $4,500, while wall insulation for a typical two-story home may cost $3,000-$7,000. Crucially, Massachusetts offers significant incentives through the Mass Save® program, which provides no-cost home energy assessments and rebates covering 75-100% of insulation costs for eligible upgrades, making it very affordable for Somerville homeowners.
While insulation can be installed year-round, the ideal times are late spring (May-June) and early fall (September-October). These periods typically offer mild, dry weather, which is important for certain materials like spray foam to cure properly. Scheduling during these shoulder seasons also avoids the high-demand winter rush when homeowners are urgently addressing drafts and high heating bills.
Always verify the contractor is a licensed Massachusetts Construction Supervisor and, most importantly, a certified Mass Save® partner. This certification is essential for you to access state rebates. Also, look for local experience with Somerville's specific housing stock—like balloon framing, old plaster walls, and tight attic spaces—and ensure they perform a pre-installation energy audit to identify your home's unique air leakage points.
Not by itself. In our windy New England climate, air sealing is the essential first step to stop drafts. Insulation works to resist heat flow, but if gaps, cracks, and bypasses in your attic, basement, and around windows aren't sealed first, warm air will still escape, making your insulation less effective. A professional energy audit through Mass Save® will pinpoint the exact sources of air leakage before any insulation is added.