New Construction

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Building Retrofits

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Building Diagnostics

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Energy Audits

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Cozy Home Performance, LLC is a full service Building Performance 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 homes and buildings we service are durable – safe – healthy – comfortable; as well as, energy efficient. Our detailed work will achieve the building performance standards and value your investment demands. We guarantee your satisfaction.

Commercial Services

High Performance Insulation Assemblies:

  • Loose fill and dense pack Cellulose
  • Open and Close cell Spray Foams
  • Targeted Air Barrier Controls

Building Envelope Diagnostics:

  • Blower Door Airtightness Testing
  • Infrared Thermography
  • Air Barrier Fogging

Fire Barrier Coatings

Institutional and Industrial Facilities

Institutional and Industrial Facilities

News and Updates

Ferriter Testimonial

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.

CHP Ranks #1

This just in!! Cozy Home Performance ranks #1 out of 83 contractors for the Mass Save program.

FREE Home Energy Assessment

Did you know that Cozy Home Performance, LLC is a Mass Save Contractor? Schedule your FREE Home Energy Assessment with Mass Save today. Then contact us to review and schedule the work.

More news, updates and testimonials →

Residential Services

High Performance Insulation:

  • Cellulose Insulation
  • Spray Foam Insulation (open and close)
  • Targeted Air Sealing

Building Performance Diagnostics:

  • Blower Door airtightness testing
  • Infrared scanning
  • Code verification testing

Energy Audits / Building Evaluations

Ice Dam and Comfort Solutions

Cozy Home Performance Building Diagnostics

mass save top contractor

Cozy Home Performance is a partner contractor with all utilities that participate in the Mass Save Program.  Residential projects may be eligible  for free energy audits, air sealing and insulation incentives. Commercial retrofit projects may also qualify for Mass Save’s Commercial Energy Efficiency Program and be eligible for insulation and air barrier incentives, plus mechanical upgrades.


Case Studies

  • memorial-hall

Cozy Home awarded Memorial Hall energy retrofit project!

 Great News! As the result of a grant, the city of Northampton, MA awarded the 'Insulation and Air Sealing Work at Memorial Hall' to Cozy Home Performance, LLC of Easthampton, MA. The work-scope includes comprehensive remediation [...]

  • clark-hall-ft

Clark Hall Project, Smith College

Smith purchased the building in 1889 and operated it as a boarding house. Today it is used as an administration building for Student Affairs. This project is one of many that has been designed to support the "Strategic Climate Action Management Plan" (SCAMP), which has the goal of making Smith College carbon neutral by 2030.

  • pick-residence-ft

Pick Residence, Montague MA

This may have been one of my personal favorite projects of the year. The Pick job evolved from a 'take Mass Save to the next level' to a comprehensive whole house building retrofit.