The Best Insulation Contractors in Wilmington, MA

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

#1

Mass Energy Experts

4.8
(200 reviews)
Verified

A leading energy efficiency and insulation contractor serving Eastern Massachusetts. They are well-known for their comprehensive home performance audits and high-quality insulation installations, particularly spray foam and dense-pack cellulose. They are a Mass Save partner, which is critical for customers seeking rebates and 0% financing.

18 Republic Road, North Billerica, MA 01862

Specialties & Features

Spray foam insulation
Energy efficiency audits
Air sealing services

Business Information

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

EcoInsulation

4.7
(150 reviews)
Verified

EcoInsulation specializes in sustainable and high-performance insulation solutions. They are experts in blown-in cellulose and fiberglass, as well as spray foam applications. Their strong focus on building science and air sealing makes them a top choice for homeowners looking to improve comfort and reduce energy bills.

3 Alphabet Lane, Westford, MA 01886

Specialties & Features

Blown-in insulation installation
Attic insulation upgrade
Air sealing services

Business Information

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

A-1 Insulation

4.6
(100 reviews)
Verified

A long-standing family-owned business providing a wide range of insulation services across the North Shore and Greater Boston areas. They have a strong reputation for reliability, professionalism, and expertise in all types of insulation, including basement and crawl space projects.

2 Hale Street, Newburyport, MA 01950

Specialties & Features

Insulation removal and replacement
Basement and crawl space insulation
Wall insulation services

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes

Why These Are the Top Insulation Contractors in Wilmington

The insulation market in Wilmington and the surrounding Greater Boston area is competitive and of generally high quality, driven by Massachusetts's strict energy codes and the popular Mass Save program. Homeowners in Wilmington have access to some of the best energy efficiency contractors in the state. The market is characterized by a mix of large, Mass Save-partnered companies and smaller, specialized firms. Pricing is typically at a premium due to high labor costs and the technical expertise required, but this is offset by significant state-sponsored rebates and attractive, no-interest HEAT loan financing available through the Mass Save program. Typical costs can range from $1,500 to $4,500 for a standard attic insulation project, with spray foam and complex whole-home retrofits reaching $10,000 or more. The high concentration of older homes in the region creates a steady demand for insulation removal and replacement services.

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 Wilmington regulations and climate

Frequently Asked Questions About Insulation in Wilmington

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

1What is the recommended insulation level (R-Value) for attics in Wilmington, MA, and why is it specific to our area?

For Wilmington's cold Climate Zone 5, the U.S. Department of Energy recommends an attic insulation level of R-49 to R-60. This high R-Value is crucial to combat our harsh winters and humid summers, ensuring your home retains heat efficiently in January and stays cooler in July, leading to significant year-round energy savings and comfort.

2How much does insulation installation typically cost for a Wilmington home, and are there any local incentives?

Costs vary by home size and material, but a full attic insulation upgrade in Wilmington typically ranges from $1,500 to $4,500. Critically, Massachusetts offers excellent incentives through the Mass Save® program, which provides no-cost home energy assessments and rebates that can cover 75-100% of insulation costs for eligible homeowners, making it very affordable.

3When is the best time of year to add or upgrade insulation in my Wilmington home?

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 in Wilmington, which is optimal for the work and allows you to prepare your home's thermal envelope before the peak heating and cooling seasons arrive.

4What should I look for when choosing a local Wilmington insulation contractor?

Always verify the contractor is licensed in Massachusetts and carries proper insurance. Crucially, ensure they are a Mass Save® Partner, as this is required for you to access state rebates. Also, look for established local companies with knowledge of Wilmington's common home styles (e.g., ranches, colonials) and their specific insulation challenges, like older homes with minimal existing insulation.

5My older Wilmington home feels drafty. Is air sealing included with insulation services, and is it necessary?

Yes, professional insulation services should always include comprehensive air sealing. This step is non-negotiable for effectiveness, especially in older New England homes where air leaks around windows, sill plates, and attics are common. Sealing these gaps before installing insulation prevents conditioned air from escaping, which is a key requirement of the Mass Save® program to ensure optimal performance.