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In 2025 a gazettenet.com article reported that Nick, Grace and their father Tim Drost, all co-owners of Window World of Western Massachusetts, branched out with a new venture called Go Green Home Performance, which aims to focus on insulation that will complement the company's windows and doors. Its MA home improvement contractor licence 211351 is active on the state registry, with Go Green Home Performance Inc as the holder of record. In 2026 a customer wrote that Go Green Home Performance, working with its sister company Window World, removed the old roof of a 200 year old home to reach the spaces just below the roof sheathing and installed foam insulation to deal with ice dams, with the work done in a week. In 2026 a customer wrote that they had closed-cell insulation installed in new exterior walls and floors, and that the house interior was sealed against odors and the insulated space negatively vented, with no smell when they returned. In 2026 a customer wrote that Jeremy explained the process of installing spray foam insulation in the perimeter of their basement. In 2026 a customer wrote that two workers completed an insulation install beneath the floor and showed pictures of before and after. In 2026 a customer wrote that Jeremy and Al insulated a problem area in their bathroom and covered the new floors, while Cory and Zach did drywall repairs and painting. In 2026 a customer wrote about blow-in insulation to the wall from inside the house, cleaned up afterward. Google shows 4.9★ from 31 ratings.
“Nick, Grace and their father Tim Drost, all co-owners of Window World of Western Massachusetts. The company recently branched out with a new venture called Go Green Home Performance in which it aims to focus on insulation that will complement the windows and doors the company has installed for years.”
Jeremy and his team were true professionals! Their work ethic was above and beyond my expectations. They left the work area cleaner than when they started. I recommend Go Green Home Performance to anyone looking for a company to insulate their home or business!
The two workers arrived right on time. Extremely polite and answered any questions I had. After the completion of the insulation install beneath the floor, in a space I have never entered, they showed me pictures of before and after. Everything looks great. Thank you Jeremy.
We had closed-cell insulation installed in new exterior walls and floors; we were concerned about the possibility of lingering chemical smells in the house. They sealed up the interior of the house against odors and negatively vented the space they insulated. We vacated for the day and were called when they finished. We were thrilled that there was absolutely no smell when we returned. Excellent work!
Jeremy and Paul were fantastic. In addition to being highly competent plumbers they were affable and a pleasure to have on the job. It was great to experience workers who enjoy working and take pride in their craft. They worked extremely well together and went above and beyond to communicate with me about the work and make sure I was satisfied with the outcomes. Truly outstanding!
On time, very clear instructions, quick but careful work, and good clean up.
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2 changes recorded — last scanned Sep 28, 2026.
Mass Save weatherization4.9
Fast Mass Save scheduling4.9
Siding, windows and gutters on a whole house in under a week4.9
Spray foam with no overspray left behind4.5