GUARANTY GLASS & MIRROR INC

Guaranty Glass & Mirror is a family-owned glass shop in Spencer, Massachusetts that says it has been serving the area since 1993, working across auto glass, residential glass, and commercial glass installation and repair. The company describes itself as locally and family owned and offers free estimates. The written record here is long and consistent: 32 reviews stretching from 2021 through 2026, almost all five stars, on top of a 4.9-star Google rating from 53 ratings. Reviewers keep coming back for two different kinds of work under one roof. On the auto side, people describe fast windshield turnarounds — a truck back on the road within two hours after an insurance referral, another windshield finished before noon — and direct coordination with insurance companies. On the residential and commercial side, the company is repeatedly credited with custom glass work: shower doors and glass enclosures, a custom home's cut-to-size cabinet glass tops, and window and screen replacement, including a same-day screen door swap and a large picture window with four screens. Staff are named specifically and often — Steve, Paul, Eric, and Liz all show up by name across multiple reviews — and several reviewers mention this being their second job with the company, a sign of repeat trust rather than one-off praise. A 2026 mention outside the review platforms echoes the same read on the owner directly. The one dip in an otherwise clean record came in a 2022 review, where a customer described a shower glass piece that arrived the wrong thickness and then with a streaked coating before the company made it right — worth asking about lead times on custom glass orders, since that reviewer's own follow-up said the issue was resolved. A 2025 review also describes Eric returning the day after a call to fix a shower door installed years earlier, still honoring the warranty, which speaks to how the company handles problems when they do come up. For homeowners, Guaranty Glass & Mirror looks like a solid call for shower doors and enclosures, window and screen replacement, and mirror or custom glass work, with a long enough Spencer-area track record to back it up; anyone placing a larger custom order is probably best served by confirming lead times up front given the one flagged delay in the record.