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TRUSTED BY BELLINGHAM, MA HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon151
    Verified insulation services reviews

Top-Rated Insulation pros in Bellingham - Updated Nov 2026

Avatar for McLaughlin Weatherization
McLaughlin Weatherization
4.8(
39
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+2 more

Serving Bellingham, MA and surrounding areas

Approved

Free estimates

Credit card accepted

Customers say: Super punctual

"Professional crew; work was done quickly, with minimal disruption and fairly good cleanup. The house is older and the crew chief took reviewed the interior carefully to insure there would be no damage to the walls in the insulation process."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

Response time2 days
Response rate100%
9 neighbors recently requested a quote
Avatar for Complete Home Comfort
Complete Home Comfort
5.0(
9
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Bellingham, MA and surrounding areas

Approved

Free estimates

Warranties offered

Small jobs welcome

We pride our company on reliability, great communication,\nintegrity, and quality work. We are experts in our trade and will do our best\nto keep you as educated as we can on your particular task or project. We look\nforward to earning your business! We partner with utility-sponsored programs like Mass Save® Home Energy Services and Rhode Island Energy's EnergyWise Home Energy Services programs.\n

Basement Sills
Crawlspace Walls
Crawlspace Sills
Attic Floor
Attic Floor

+4

22 neighbors recently requested a quote
Custom Insulation Company, Inc.
3.6(
117
)
Spray Foam Insulation - InstallBlown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade+1 more

Serving Bellingham, MA and surrounding areas

Approved

In business since 1985

Free estimates

Small jobs welcome

"We have established ourselves as the premier insulation contractor in the region. Our team of expert spray foam insulation installers is dedicated to enhancing your home is energy efficiency and comfort. As a professional spray foam insulation company, we understand the importance of quality insulation in maintaining a comfortable living environment while reducing energy costs. Our extensive experience in the industry allows us to offer a wide range of insulation services, including residential spray foam insulation and other advanced insulation solutions. We stay up-to-date with the latest spray foam insulation systems to ensure our clients receive the most effective and efficient insulation options."
Copper Gutters
Foam Insulation
Foam Insulation
Blown In Insulation
Ridgid Foam Board

+2

Response time3 days
147 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Clean Tech Construction, LLC
Clean Tech Construction, LLC
5.0(
13
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Bellingham, MA and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

[email protected] is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Gallery
26 neighbors recently requested a quote
Recommended by81%of homeowners
AVID Energy Solutions
New to Angi
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Bellingham, MA and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

AVID Energy Solutions is a team of experts dedicated to helping homes reduce their energy output and monthly utility bills. Based in Methuen and Sutton MA, we work with clients throughout Massachusetts and New Hampshire to find the best possible solutions for their needs and budget. We believe that everyone should have access to affordable, reliable energy efficient solutions, and we are committed to providing that access. Our team is composed of certified energy auditors, professional installers, and friendly customer service representatives who are all committed to providing the highest level of service. We offer a no-cost home assessment to get started, and we work with you every step of the way to ensure that you are getting the most out of your investment. Contact us today to schedule your free home assessment and start saving!

1 neighbors recently requested a quote
Sonart Construction Corp.
2.3(
7
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Bellingham, MA and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

Sonart Construction Corp. has over15 years of experience in providing a variety of exterior and interior renovation services. We provide services to Palm Beach, Broward and Miami-Dade Counties.. We specialize in Bathroom Remodeling, Kitchen Remodeling, Flooring and the list goes on. Customer satisfaction is what determines our success, which is why we take a hands-on approach and keep the customer informed through every phase of the project. When interacting with our company, you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing, and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your renovation needs. Give us a call today!

Avatar for EZinsul, Inc.
EZinsul, Inc.
4.6(
51
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Bellingham, MA and surrounding areas

In business since 2022

Free estimates

Credit card accepted

"Installation of insulation went well; EZinsul was very thorough. However, there were some clumps of insulation and a thick film of fiberglass covered everything, despite their sweeping up to â industry standardsâ . Jacob & I talked; he came back and dusted to my satisfaction. I appreciated this attention he paid to my project. I would highly recommend EZinsul. Ruth Ann White"
Fiberglass Insulation
Fiberglass Insulation
Fiberglass Insulation
Fiberglass Insulation
Fiberglass Insulation

+7

Recommended by97%of homeowners
Avatar for EZ Insul, Inc
EZ Insul, Inc
4.5(
45
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Bellingham, MA and surrounding areas

In business since 2022

Free estimates

Credit card accepted

"Installation of insulation went well; EZinsul was very thorough. However, there were some clumps of insulation and a thick film of fiberglass covered everything, despite their sweeping up to â industry standardsâ . Jacob & I talked; he came back and dusted to my satisfaction. I appreciated this attention he paid to my project. I would highly recommend EZinsul. Ruth Ann White"
Insulation on slope
Kneewall slope work
walkup fully insulated
Attic insulation
Attic insulation

+2

Response time3 days
Recommended by97%of homeowners
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Showing 1-10 of 71
Insulation FAQs, answered by experts

If you need to insulate behind finished walls, the best option will likely be to have an insulation professional install blown-in insulation. The installation requires small holes cut in your wall, after which the installer can blow loose-fill insulation into the void. After the installation, you’ll have minor drywall patching, which shouldn’t cost more than $100. Compared to ripping down the existing drywall, using a different type of insulation, and replacing and finishing the drywall, this should save you hundreds or even thousands, depending on the size of the room you’re insulating.

Ideally, you can add new insulation to your existing insulation. However, some circumstances require you to remove old insulation before adding any new insulation: 

  • If the insulation is over 15 years old

  • If the insulation is wet or moldy

  • If it is vermiculite insulation

  • If you see signs of pest infestation

Removing old insulation is best left to a pro who can safely dispose of potential moldy or asbestos-ridden insulation.

STC (Sound Transmission Class) is a rating that describes how well a building material or assembly blocks airborne sound. A higher STC rating means less noise will pass through the material, providing better sound reduction. This rating system applies to various building components, including windows, doors, flooring, drywall, and insulation.

For context, a typical single-pane window has an STC rating of around 25 (where normal conversations are audible), while a well-sealed, double-pane window can exceed STC 45 (blocking loud speech and most music). It is important to note that for some products, like soundproofing drywall, the STC rating refers to the entire wall system, not just the individual panel.

Additionally, STC ratings are most effective for measuring sound reduction at mid-to-high frequencies, such as human speech, and may not accurately reflect how well a material blocks low-frequency sounds like bass music or thunder. Because of these factors, it is recommended to consult a professional to determine the right STC-rated materials for your specific soundproofing needs.

Drywall insulation costs around $1,800, on average, but prices can range from $500 to $4,500, depending on a few different factors. The following things are important considerations to make when pricing out your insulation project:

  • Square footage of insulation

  • Type of insulation 

  • Climate in your area and the insulation R-value required

  • Whether or not your walls are already finished

  • Accessibility of the area 

  • Whether or not you need old insulation removed first

Whether you should remove old insulation before blowing in new insulation depends on your particular situation. Fiberglass insulation attracts insects and mold over time, so if it has been decades since your last insulation upgrade, consider removing the old materials before placing the new ones. However, most types resist mold, insects, and mildew, so once you get the go-ahead from your contractor that your space is free from all three, feel free to install the new insulation directly on top of the pre-existing materials.

The Bellingham, MA homeowners’ guide to insulation services

From average costs to expert advice, get all the answers you need to get your job done.