Logo of Cozy Home Performance, LLC

Cozy Home Performance, LLC

  • 9 West St, West Hatfield, MA 01088
  • 24/7 Emergency Repairs
  • Financing Available
  • Locally Owned & Operated
  • Warranties Offered
  • Metal Roof
Hours
Mon7:30 AM - 9:00 PM
Tue7:30 AM - 9:00 PM
Wed7:30 AM - 9:00 PM
Thu7:30 AM - 9:00 PM
Fri7:30 AM - 9:00 PM
Sat7:30 AM - 9:00 PM
Sun7:30 AM - 9:00 PM

About the Business

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What people say about “Cozy Home Performance, LLC”?

There are not enough reviews yet to form a clear opinion about Cozy Home Performance, LLC

Recommended Reviews

Overall Company Rating
Excellent 4.8
Out of 21 reviews
5 stars
4 stars
3 stars
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1 stars
Show first:
David Viola
Jun 6, 2025

Can’t say enough good things about Mark, his crew, and the work they do. Great communication from planning to execution, fair and honest and accurate estimates, and most of all, amazing work. Our old home required putting some thought into the project and Mark really helped figure out the right approach. We’re done with the first stage of two (completing upper level in the fall) and I can’t wait to see the significant difference once we’re totally done!

Justin Brown
May 19, 2025

Great experience! Owner was easy to deal with and understand and very responsive. Crew was great and left everything as they found it and ready for the next step in the renovation. Thank you!

Hala Abdul-Rasool
May 1, 2025

I have had multiple conversations with Mark over the years regarding air flow, vapor drives, thermal barriers and the environmental impact of his work. He knows his science. He is not just stuffing insulation in your walls. Mark and his crew are wonderful to work with. They are professional, timely, considerate, and its obvious they take pride in the work that they do. I highly recommend their work.

Matt Brewster
Jun 4, 2024

Mark and his crew are incredibly caring and skilled in their work. From the depth of the consult about options to the quality of the execution and clean-up, they are first-rate. Cozy Home has helped us with multiple insulation and air quality improvement projects in our early 1900's home. Highly recommended!

Stone Mountain Roofing LLC
Feb 20, 2024

Mark and his team are fantastic! Very informative, quick response times, and the quality of work speaks for itself. Highly recommend for your insulation needs!

Jack Loveless
Mar 1, 2023

We're very happy with the spray foam insulation that Mark and his team applied in our attic, including the underside of our roof. The upstairs of our house is now substantially warmer, and we are no longer having issues with snow on the roof melting and refreezing, which formerly caused icicles and ice dams. The communication was excellent throughout the process, with thorough answers to our questions, and the installation team was efficient and courteous.

aWa
Feb 12, 2023

Horrible, horrible business practices! BEWARE OF THIS OWNER…..failed and broken promises of NO SHOW of three times!
Cost me $600 for unloading and reloading my garage. Not to mention, job he quoted me is STILL not finished, industry prices have gone up so now I have to spend even more $$$$

Didn’t even have the courtesy to call or text me back on the THIRD TIME he was supposed to show up!

HORRIBLE businessman this owner George is…..just horrible

BEWARE

Alvin
Oct 12, 2020

They did a great job informing us of any problems they came across and warned us of a problem we'll need to fix later. Insulation definitely made a difference for our second floor. Professional and communicated well!

Barbara J Gordon
Oct 2, 2020

Outstanding comprehensive Energy Audit performed by Mark Lantz. Our property is a confusing, crazy patchwork of old and new, basements and crawlspaces, with several disconnected, hard to access attics. He successfully advocated for us with MassSave and we received huge benefits under their program. The extensive re-insulation work was done by a top notch crew and reviews and revisions were made intelligently as required when a few "surprises" were discovered in poorly accessible areas. This was a huge and complex job that was expertly handled from start to finish. We can't recommend this company highly enough!

Mary K
Dec 3, 2019

The team worked so hard! They insulated the attic and exterior walls in two days. The foreman kept me updated on progress and any unusual conditions they discovered. They cleaned up when they were done. One of the team even washed the floor! Highly recommended.

Craig Conkey
Nov 20, 2019

Had Cozy H.P. do the insulation in my attic and I have to tell you they excited all my expectations. Start to finish that did an outstanding job. If you have an insulation project coming up at least let them give you a quote.

Huckle May
Nov 12, 2019

They did a great job on short notice and stayed with their original quote even though it ended up being more complicated than originally specified. They cleaned up after themselves and were very professional. I would absolutely use them again.

Jon Reardon
May 30, 2019

Cozy was great to work with and the team was amazing. They laid down plastic on the floors and furniture to prevent dust, debris, and damage to our home as well as swept and used a Swifter wet jet to clean up. They originally expected to be at our place for 2-3 days but got it done in one and a half. The crew cut holes from the inside of our house in places that would be easily patched and painted (avoiding places like the kitchen back splash and shower walls). They blew all the insulation in pretty quickly and patched the holes well. I did do a second layer of spackle myself before painting to ensure amazingness. However this team was great, friendly, and even gave helpful hints and let me borrow tools for a few projects I was working on simultaneously. My only wish is that to patch the holes they used a different material instead of placing foam in the hole and using spackle to hold it in and hide it; who knows how it will hold a command strip or nail if one accidently went there. All in all I would do business with them again.

carolyn mailler
Feb 17, 2019

We are so grateful for Mark and his team and all the good work they did. They responded quickly to calls and emails, provided options that saved us several thousand dollars (over the estimate we'd gotten from another company), showed up when they said they would, and did a nice job. They also cleaned up every day. Our new home is toasty warm and quiet.

janice velozo
Sep 29, 2018

The crew was very professional and efficient. They were considerate of the house and pleasant to talk to. Work was completed on time and efficiently. They explained everything that was completed

Patricia Mahoney
Aug 1, 2018

I had a positive experience both with the initial consultation and the final installation. I never felt pressured to go beyond my immediate needs and my financial budget.

Riverbend Animal Hospital
Jun 1, 2018

We had Mark and his team apply spray insulation in our facility and we couldn't be happier. Their communication was excellent, any concerns we had were addressed quickly and to our satisfaction, and they were attentive and helpful. Shane and the rest of the team were a pleasure to work with and we're noticing a big improvement in our heating and cooling. We highly recommend!

Chris Aiken
Jun 21, 2017

I found everyone who works at Cozy Home to be trustworthy and professional I would recommend them for those looking to insulate their home

Kelly Szewczynski
Jun 4, 2017

Mark & his team did a great job from beginning to end. From his initial consultation to figure out was was wrong & coming up with an intelligent solution that met both operational & monetary needs, Cozy Home was a pleasure to work with. Mark & his team removed moldy sheetrock, found & sealed the leaking ventilation duct work ( which is what caused the mold ) in the garage. They were clean, professional & included me in the entire process; showing me the leaks & again showing me the sealing process using the high expansion foam. They then re-installed the sections of sheetrock that were removed & applied one coat of joint compound. This set me up to finish the process.
I would recommend Mark & his team without hesitation. They know their trade well & want ( and succeed ) to do a good quality job at a fair price. Thanks again to Cozy Home for their help. Its nice to work with honest, nice professional people.
Mike & Kelly
Westfield, MA

mark lantz
May 3, 2017

Winter 2024 - Great work in difficult conditions. Professional crew. Home is much more comfortable with no more mice! Happy house hold. Easthampton, Mass

Cheri Cross
Apr 14, 2017

“My Cozy Home has a wonderful reputation in our extended neighborhood, so they were an easy choice for upgrading the insulation in our attic, along our basement sill, and a crawl space. The Cozy Home team rightfully took pride in their work, and we’re thrilled with the results. The house is noticeably warmer — more so than we had even hoped for. Great job, great company!” ~ C.C. Northampton

Call us and get a quote right now Show phone number
137 locals recently requested a quote
  • 9 West St, West Hatfield, MA 01088
  • 24/7 Emergency Repairs
  • Financing Available
  • Locally Owned & Operated
  • Warranties Offered
  • Metal Roof
Hours
Mon7:30 AM - 9:00 PM
Tue7:30 AM - 9:00 PM
Wed7:30 AM - 9:00 PM
Thu7:30 AM - 9:00 PM
Fri7:30 AM - 9:00 PM
Sat7:30 AM - 9:00 PM
Sun7:30 AM - 9:00 PM

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