
Serving Littleton, MA and surrounding areas
In business since 2014
Free estimates
Warranties offered
"It has been one year since the replacement, so I felt it was time to leave a review. We replaced all the windows in our smaller mid-century house. Zen provided the windows in a timely manner, and installed them all in a few days. We are generally happy with the quality of the windows, although the locks & operators to open the windows feel a bit cheap. Also, the screens pop in & out, and while that is okay, the lack of a locking mechanism makes me wonder how they will last in the long term. HOWEVER - the team that replaced the windows did not put down any tarps or protection when they took out our old windows. They forgot to remove three of them from our property, and we were left to deal with that. The bigger issue was that they shattered a bunch of the window panes while removing, and to this day, a year later, we are STILL finding large shards of glass on the ground while gardening or planting. We don't have kids, but if we did, we would have had to spend thousands on replacing our gardening, tearing up mulch and dirt, and attempting to keep index-card-sized pieces of glass from being left on our lawn. They did come by once to clean up, but, as I noted, just this week I found two large shards shallowly buried in our side yard. Would not hire again."











