Sentry Glass Co

Sentry Glass reads like a Lawrence glass shop people call for practical break-fix work: window replacement, glass repair, screens, storefronts, storm windows, and vehicle glass. BBB says the company has been in business for 42 years, and Porch lists it as a window replacement and installation company serving a wide run of eastern Massachusetts towns. The public ratings are solid without being spotless: Google lists 4.7 stars from 67 ratings, while Porch lists 4.4 from 39 ratings. The most recent detailed review, from March 2026, describes a broken door glass panel, a fast response, a quote visit, and a quick scheduled repair; the same reviewer says their family has used Sentry for more than 30 years and names Damien as the newer owner after years with the company. There is one licensing item to resolve before hiring them for window or installation work. Massachusetts registry evidence lists HIC registration 104080 as expired. BBB also lists the company as not BBB accredited and not rated, so the third-party review picture is useful, but it should be paired with a direct licensing check. They make the most sense for glass repair, window replacement, screen work, storm-window jobs, storefront glass, and similar exterior openings. Before booking, ask for the current HIC status, who will perform the installation, and whether the quote covers removal, cleanup, and any custom glass lead time.