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Cozy Home Performance, LLC, located in Easthampton, MA, is a full service Building Envelope and Insulation Contractor. Our design and installation methods are based on an integrated building systems approach that follow primary principles of building science and building performance standards. We ensure the buildings we service are: air tight – comprehensively insulated – energy efficient; as well as, comfortable, safe and durable. Our detailed work will achieve the building envelope standards and the full value your investment demands. We guarantee our work and your complete satisfaction.

We provide full insulation and building envelope services for Commercial, Institutional, Residential and Multi-family buildings; new construction and retrofication. We have proudly been serving Western Mass and beyond since 2006.

Building Envelope and Insulation Services

High Performance Insulation Assemblies:

  • Open and Closed Cell Spray Foam

  • Loose-blown and Dense-pack Cellulose

  • Mineral Wool and Fiberglass

  • Integrated Air Barrier and Moisture Controls

vent roof-close cell spray foam-insulation

Vented roof w R49 closed cell spray foam

Building Envelope Diagnostics:

  • Blower Door Air Barrier Verification

  • Infrared Thermography – IR Scan

  • Duct System Airtightness Testing

  • Combustion Safety-Back Draft Testing

winter hot roof-infrared image

Infrared image of hot roof in winter

Additional Services:

  • Ice Dam and Comfort Solutions

  • Sound Proofing (spray and batt)

  • Duct Air Sealing and Insulation

  • Fire Barrier Coatings
Severe ice damming due to poor roof insulation

Severe ice damming

Featured News and Updates

41% Electrical Usage Reduction

A condo owner was experiencing high electric bills. The condo was heated with an electric air-source heat pump and a propane gas stove. An inset garage with living space above and on two sides, was [...]

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Mass Save Partner

Cozy Home Performance is a participating contractor in the Mass Save Program.  Residential projects can be eligible  for no-cost energy audits, air sealing and insulation incentives. Commercial retrofit projects can also qualify for Mass Save’s Commercial Energy Efficiency Program and be eligible for insulation and air barrier incentives, plus mechanical upgrades.

Current Projects

Town of Conway Calls for Assistance!

After initial inspection by Sensible Solutions owner Lily Barak, P.E. it was determined that recently completed building energy efficient work at the Conway Town Hall (gym) was not installed properly and had to be remedied. [...]

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41% Electrical Usage Reduction

A condo owner was experiencing high electric bills. The condo was heated with an electric air-source heat pump and a propane gas stove. An inset garage with living space above and on two sides, was [...]

Read More

Testimonials from Cozy Home Customers

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Cozy Home Performance is hands down the best energy diagnostic and insulation company in the Valley. Mark and his crew enter and exit your work stream seamlessly, on time and on budget. The key is the knowledge, experience and personal responsibility each employee brings to his work. Mark not only has design experience, he also has the creative spark that leads to innovative solutions to unique problems. With all forms of insulation under one roof, careful diagnostics and appropriate choice of material, one always get the most out of every insulation dollar from Cozy Home Performance!!
John Ferriter, in construction in the Valley for 45 years
I’m happy that the incentive was more than anticipated (As a Home Performance Contractor with Mass Save Cozy Home secured $2,760 in project incentive funds.). I enjoyed working with you and your crew. Everyone was pleasant to deal with. They were professional and courteous and when I had questions, the answers were in a non-technical response so I could understand. Each day they left the area clean.
D.N., Easthampton, MA
Someone from the utility company was here today to inspect the work resulting from their incentive. They were very positive both about the quality of the recommendation, and the quality of the work. I am pleased too. I’m almost looking forward to next winter to see the difference.
Phil, Northampton, MA
The house definitely feels different – hard to explain the feeling, maybe more solid? Anyway, we have checked out all the work areas that we could and are really impressed. We can already feel the difference in some rooms – even with the warmer weather! Thanks to all the guys who were at the house. They were all very polite and pleasant and seem to have done an awesome job!
K.C., Goshen, MA