Insulation & Windows

Stay warmer in the winter and cooler in the summer with weatherization incentives.

Insulation, air sealing, and window upgrades work hand in hand to make your home more energy efficient and comfortable. Weatherization upgrades are the most cost-effective way to save energy.

The Sponsors of Mass Save also offer no-cost insulation and air-sealing upgrades to income-eligible residents.

​​​Not Sure Where to Start?

Start your home energy efficiency journey with a no-cost virtual or in-person home energy assessment. An Energy Specialist will seek out inefficiencies, recommend upgrades, and help you access available rebates and incentives.

Case Study: Shelburne Falls Addition

To make a new addition more comfortable, Angel and her husband took advantage of incentives to increase the insulation levels, install a high-efficiency mini-split heat pump, add a new fan vent, and make LED lighting upgrades.

Case Study: Westhampton Upgrades

Homeowners in Westhampton participated in a no-cost energy assessment to find ways to make their home more comfortable. By making insulation improvements and installing LED lightbulbs and advanced power strips, the homeowners are expected to save $486 annually in energy costs.