The Best Insulation Contractors in Medford, MA

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

#1

Mass Energy Insulation

4.8
(200 reviews)
Verified

A highly-rated, specialist insulation contractor focused exclusively on insulation and air sealing services. They are well-known for their expertise in dense-pack cellulose and spray foam applications and are often recommended for their deep knowledge of Mass Save® rebates and programs.

26 Crown St, Malden, MA 02148 (Located immediately adjacent to Medford)

Specialties & Features

Blown-in cellulose insulation
Spray foam insulation
Air sealing services

Business Information

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

A+ Insulation

4.7
(150 reviews)
Verified

A full-service insulation company serving the greater Boston area with a strong reputation for comprehensive home performance work. They handle everything from initial energy audits to complete insulation removal and replacement, making them a strong choice for whole-home projects.

5 East Rd, Tewksbury, MA 01876 (Serves the Medford area)

Specialties & Features

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

Business Information

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

HomeWorks Energy

4.6
(1000 reviews)
Verified

A large, well-established energy services company and a licensed Mass Save® partner. While they offer a wide range of services, their insulation division is a core part of their business. They are an excellent choice for homeowners who want a one-stop shop for a no-cost Mass Save® audit and subsequent insulation work, often with significant rebates.

292 Main St, Stoneham, MA 02180 (Serves the Medford area)

Specialties & Features

Energy efficiency audits
Attic insulation upgrades
Wall insulation services

Business Information

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

Why These Are the Top Insulation Contractors in Medford

** The insulation market in Medford, Massachusetts, is highly competitive and quality-focused. The city's housing stock is predominantly composed of older homes (early to mid-20th century), which are often severely under-insulated by modern standards. This creates a constant demand for upgrade services. The market is heavily influenced by the **Mass Save®** program, which offers no-cost energy audits and significant rebates on insulation work, making high-efficiency upgrades financially accessible. **Average Quality:** The bar for quality is high, with leading contractors proficient in advanced techniques like dense-pack wall insulation and air sealing to meet the strict building performance standards required for rebates. **Competition Level:** High. The market is served by a mix of large, state-wide Mass Save® partners (like HomeWorks Energy) and smaller, specialized local contractors (like Mass Energy Insulation). Reputation, expertise with rebate paperwork, and proven energy savings are key competitive differentiators. **Typical Pricing:** Pricing is premium due to high labor costs and material standards in Massachusetts. However, the Mass Save® rebates can cover 75-100% of the cost for qualified homeowners, dramatically reducing the out-of-pocket expense. For a standard attic insulation project (air sealing and bringing insulation to R-60), a homeowner might see a pre-rebate cost of $2,500 - $5,000, but their final cost could be as low as $0 to $1,500 after incentives. It is critical for homeowners to get a Mass Save® audit first to understand their rebate eligibility.

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 Medford regulations and climate

Frequently Asked Questions About Insulation in Medford

Get answers to common questions about insulation services in Medford, Massachusetts.

1What are the most important types of insulation for my Medford home given our local climate?

For Medford's cold winters and humid summers, air sealing combined with attic insulation (typically blown-in cellulose or fiberglass to R-49 or higher) is the top priority to prevent heat loss. Properly insulating basement rim joists and walls is also critical to combat drafts and moisture issues common in our New England climate. Many older Medford homes benefit from adding dense-pack cellulose in wall cavities to improve the building envelope.

2Are there any Massachusetts or Medford-specific rebates or incentives for insulation upgrades?

Yes, Massachusetts offers excellent incentives primarily through the Mass Save® program, which is available to Medford residents served by National Grid or Eversource. This includes rebates on materials and, most significantly, 75-100% off insulation costs based on income, plus 0% financing for qualifying homeowners. Always ensure your contractor is a Mass Save® participating partner to access these benefits.

3When is the best time of year to install insulation in Medford, and how long does it typically take?

Fall is ideal, as it prepares your home for winter heating season and contractor schedules are more open. However, insulation can be installed year-round. Most whole-house projects (attic, walls, basement) take 1-3 days for a crew. Scheduling a pre-winter energy audit through Mass Save® in late summer or early fall is a smart first step to plan the work.

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

Always verify that the contractor is licensed, insured, and specifically a Mass Save® participating partner. Look for established local companies with strong reviews on platforms like Google and BBB, and ask for references from recent projects in Medford or nearby towns like Malden or Somerville. A trustworthy provider will insist on a thorough energy audit before giving a final quote.

5My Medford house is old and drafty. Will adding insulation cause moisture or mold problems?

Not if done correctly. A key part of insulating older homes in our humid climate is first performing comprehensive air sealing to control airflow that carries moisture. A professional assessment will identify potential problem areas like attic ventilation or basement walls. Properly installed insulation and air sealing actually reduce the risk of mold by eliminating cold surfaces where condensation occurs.