Join Nashua Area Project COZY
A Nashua-area community initiative where residents work together to build affordable WindowDressers window inserts that stop drafts and reduce heating costs.
Neighbors Helping Neighbors
Energy-saving low-cost interior window inserts built by neighbors and homeowners working side-by-side during local Community Build events.
Stop Drafts
Lower Heating Bills Typical inserts cost about $45–$50 per standard window.
Affordable for most homes
Typically $45–$50 per window. Community-supported pricing allows qualifying households to receive up to 10 inserts at little or no cost. To receive window inserts, participation in the Nashua Area build event is required.
Renter-friendly
No drilling, easy seasonal installation and removal.
How to Volunteer
Learn more about volunteering at UU Nashua Project Cozy. You can also or learn about other WindowDressers Community Build events in New Hampshire, Maine, or Vermont.
How to Request Window Inserts
To request window inserts or get more details about them find out how here.
View a Video overview of Project Cozy as seen on Hudson HCTV6 Public access TV
A Community Partnership
The Unitarian Universalist Church of Nashua (UU Nashua) is partnering with WindowDressers, a New England nonprofit, to bring this hands-on energy-saving program to the Nashua area. Hundreds of homes across New England have already used Window Dressers inserts to stay warmer and lower heating bills. The Nashua Area build event is planned for 11/5/26 – 11/11/26. Volunteer teams are now forming and in home window measurements and orders will begin starting in May.
WindowDressers Insulating Window Inserts let in light while stopping drafts. Each insert is made of a custom-made pine frame wrapped on each side with tightly-sealed, clear polyolefin film, creating an airspace between the two layers for additional insulation. The insert is finished with a compressible foam gasket. The foam allows enough give for the inserts to be easily slid into place in the fall and removed in the spring, while holding firmly enough to provide a tight, friction-based seal. The inserts are installed inside of your existing window frame with no fasteners required.
About UU Nashua
For 200 years, UU Nashua has served the Greater Nashua community through programs that support service, community connection, and social justice. We are a welcoming community inspiring lives of wonder, generosity, and courage, serving the world through love in action.
About WindowDressers
WindowDressers, a New England non profit, brings community volunteers of all economic and social situations together to improve the warmth and comfort of interior spaces, lower heating costs, and reduce pollution associated with burning fossil fuels, by producing low-cost insulating window inserts that function as custom, interior-mounted storm windows. Get more details about Window Dressers inserts here.