GerrityStone is a large stone fabricator and installer at 100A Eames Street in Wilmington, Massachusetts, cutting and fitting granite, marble, quartz and other engineered surfaces for kitchens, bathrooms, fireplaces, vanity tops and wet bars. The Gerrity family acquired the assets of a small stone fabrication business in 1997 and, by the company's own account, has since built a 50,000 square foot facility holding more than 300 colours and over 2,000 slabs, with CNC equipment and laser templating.
Massachusetts confirms Home Improvement Contractor registration 155632 as active, held of record by GERRITYSTONE INC — the company's own name — so that credential can be stated plainly.
The review base is deep and mostly very good: Google publishes a 4.4-star average from 186 ratings, and the detailed accounts repeatedly name individual staff across years — Tonia on selection and layout, Ken and Niccole Capuano running projects, Julio on laser templating, Nelson and Rudy on installation. Customers describe seeing their own slab before it was cut, templating that flagged problems before install, crews arriving inside a two-hour window, and in one May 2026 account a seam touched up and the whole kitchen resealed fifteen years after the original job.
The complaints are a minority but they cluster, and they cluster on the same two things: seams and what happens after the crew leaves. A June 2026 two-star reports that installers jammed a slab into place rather than trimming it, leaving walls to patch and cabinets to refinish, with little response from management. A January 2026 two-star describes an install delayed two weeks after the deposit, then a seam glued in without warning after templating had confirmed there would be none, and installers refusing to caulk the backsplash. An October 2025 one-star on Houzz describes stains bleeding through an $11,000 countertop the day after installation, the sales contact blaming the customer, and then silence. A January 2025 one-star alleges an installer stole from the customer, that the company disputed it, and that the same worker was sent back. And a widely-shared 2023 dispute — posted to three subreddits and repeated as a Houzz review by the same customer — describes a $17,000 Cambria order whose single slab broke in the warehouse, an offer of two glued pieces plus a $250 dinner voucher, and a demand for $3,000 more to supply the seamless piece originally ordered.
Much of this firm's work arrives through Home Depot, and several reviewers say so directly; one adds that a direct quote from GerrityStone would have cost $3,000 to $5,000 more. If your job comes through a retailer, establish before you pay who owns the schedule, who owns breakage in the warehouse, and what the written contract says about seam placement.
This is a well-resourced fabricator with an active state registration, a very large slab inventory and a long, specific record of good installs — the right call for a straightforward countertop replacement where you want to pick your own slab. Get seam placement in writing, photograph the walls and cabinets before the crew arrives, and agree in advance who fixes what if a piece breaks.