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TRUSTED BY GROTON, MA HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon71
    Verified insulation services reviews

Top-Rated Insulation pros in Groton - 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 Groton, 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."
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+1

Response time2 days
Response rate100%
9 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 Groton, 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
153 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 Groton, 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
24 neighbors recently requested a quote
Recommended by81%of homeowners
AVID Energy Solutions
New to Angi
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Groton, 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!

4 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 Groton, 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 EZ Insul, Inc
EZ Insul, Inc
4.5(
45
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Groton, 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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Insulation FAQs, answered by experts

You do not always need to remove old insulation before adding new. If the existing insulation is in good condition—not wet, physically damaged, moldy, or infested with pests—you can add new insulation directly on top of it for a compounding effect. You can also mix different types, such as adding blown-in insulation around existing fiberglass batts.

However, removal is recommended if the old insulation is compromised by water damage or pests. You should also remove it if you plan to install a different type of insulation, like switching from roll or batt insulation to spray foam. If the existing insulation is very old or damaged, you will likely get more benefit from removing it and starting fresh.

Asphalt roofs provide better insulation than metal roofs, but that doesn’t always mean that asphalt roofs are better for reducing heating and cooling bills. In hotter climates, metal roofs will usually be better for home efficiency because the material reflects more sunlight and reduces solar heat gain. In colder climates, asphalt roofs are sometimes superior in terms of efficiency because they introduce more solar heat gain to your home and have greater insulating capabilities. However, metal roofs installed with an air gap can provide similar levels of insulation.

The life span of fiberglass insulation can be as long as 80 to 100 years, but because of changing building codes, it’s best to get your insulation checked every 10 to 15 years. Signs of degrading fiberglass insulation include bits of batts on the floor or batts detached from frames. Having optimal, healthy insulation in your home will improve its energy efficiency, lowering your monthly bills.

Upgrading insulation offers several benefits, including improved energy efficiency, which leads to lower heating and cooling costs. It also enhances indoor comfort by regulating temperature and can provide noise reduction. Additionally, better insulation has a reduced environmental impact and can increase your home's value and overall livability.

Unless your cellulose insulation is wet, moldy, or showing signs of mildew or pests, there’s no need to remove it before adding new insulation on top of it. Inspect your insulation thoroughly before adding the new insulation, and if you’re unsure how to assess the presence of mold or mildew, talk to a mold remediation specialist near you.

The Groton, MA homeowners’ guide to insulation services

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