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TRUSTED BY WESTFIELD, MA HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon85
    Verified insulation services reviews

Top-Rated Insulation pros in Westfield - Updated Nov 2026

Avatar for Correct Energy Spray Foam
Correct Energy Spray Foam
4.6(
20
)
Spray Foam Insulation - InstallBlown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade+2 more

Serving Westfield, MA and surrounding areas

Approved

In business since 2007

Emergency services offered

Warranties offered

"Correct Energy did a great job removing the old insulation in my house and installing new spray foam insulation. The team arrived on time , were very professional, knowledgeable, nice and kept the house very clean during the installation. They completed the job on time. My attic is all clean and well insulated now. The team did a great job. I'm very satisfied with the work."
Response time3 days
Response rate100%
43 neighbors recently requested a quote
Avatar for McMahon Spray Foam, LLC
McMahon Spray Foam, LLC
4.6(
32
)
Spray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Westfield, MA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Small family business. Pleasant C.S.and scheduling experience with back office. Partners were very accommodating and their workers were friendly, neat and completed the full attic 50 year old insulation removal and new batt insulation install in a timely manner."
Spray Foam Insulation
Spray Foam Insulation
Spray Foam Insulation
Spray Foam Insulation
Open Cell Spray Foam

+5

Response time1 day
138 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Green Collar
Green Collar
4.6(
37
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install

Serving Westfield, MA and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"I normally donâ  t write reviews, but I Felt the need to about this company, and it employees from start to finish I have never been so impressed ! We had replacement windows installed today everything was measured perfectly and all the windows were installed y Robert. What an amazing company and employee! Thank you Green Collar!"
Net and Blow
Ceiling net and blow
Truck in Driveway
Knee Wall Slope 2" Board
Attic Open Blow Cellulose

+2

Response time2 days
Response rate86%
56 neighbors recently requested a quote
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 Westfield, 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
Sonart Construction Corp.
2.3(
7
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Westfield, 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!

SAV-ON INSULATION
4.5(
6
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

Serving Westfield, MA and surrounding areas

In business since 1969

Emergency services offered

"Roland did an excellent job. He explained the things I needed and those that I didn't. He was right on time and finished the job in the time he stated. He was very professional and knew what he was doing. If you are looking for a straight shooter without any of the sales frills (and the larger cost) then Sav-On Insulation should be your choice."
Additional Photos
Additional Photos
Additional Photos
Recommended by100%of homeowners
EnviroShield Insulator
5.0(
7
)
Spray Foam Insulation - Install

Serving Westfield, MA and surrounding areas

In business since 2003

Free estimates

Credit card accepted

"Ruben was amazing. He was responsive, communicative, worked efficiently and did a great job. We had our entire crawl space spray foamed. He was able to complete the project in 1 day and we’ve had multiple contractors tell us how well the job was done. Would highly recommend them for any insulation work!"
Response time1 day
Recommended by85%of homeowners
B. Alpha Construction, LLC
5.0(
4
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Westfield, MA and surrounding areas

In business since 2022

Free estimates

Credit card accepted

"Prompt estimate, called back every time I reached out, showed up on time, insulated our addition as specified and finished early. Came back to touch up something that got messed up by another contractor and did not complain or charge me. Rare experience in today's world with contractors. Would have given six stars if I could."
1 neighbors recently requested a quote
Recommended by50%of homeowners
Showing 1-10 of 29
Insulation FAQs, answered by experts

The most affordable way to insulate a garage involves choosing cost-effective materials like fiberglass, which comes in batts or rolls and is relatively easy to install. You can often install this type of insulation without needing to add drywall, which helps reduce costs. While a DIY approach might seem cheapest, hiring a professional installer can be highly cost-effective. Experts can accurately determine your garage's specific insulation needs and ensure the best results for your investment, often using batt insulation for the bulk of the project.

Yes, usually you will need some kind of vapor barrier on the exterior walls when the framing is attached to concrete and masonry surfaces.

Closed-cell spray foam insulation itself serves as a vapor barrier (or vapor retarder). However, you may need to install a vapor barrier if you have open-cell spray foam insulation. When in doubt, work with a professional insulation contractor, as they can provide more detail about the specific needs of your home in your climate.

Yes. Proper, complete insulation will ensure that you trap the most cool or warm air inside your home, preventing high energy bills. In addition, insulation tends to settle and compress, leaving gaps over time; the more you insulate completely during the initial installation, the less you’ll need to do down the line.

Fiberglass is considered dangerous only if your skin comes into contact with it or if you breathe in any fiberglass particles. This is because fiberglass is literally made of tiny fibers of glass that can cut your skin and your organs. While there aren’t many long-term effects, it’s still important to take all the proper safety precautions when working with fiberglass.

The Westfield, MA homeowners’ guide to insulation services

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