Verified record
Typical Greater Boston range for this kind of work, from regional averages — not a quote from GNU Garage & DuraBull Epoxy. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$6,000 – $9,600
Typical flooring project around $7,800
GNU Garage & DuraBull Epoxy is a Worcester-based epoxy and concrete floor coating company owned by Chris Butler, specializing in one-day garage floor installations along with basement, pool deck, patio, and driveway coatings across central Massachusetts and into the Attleboro/Franklin area. The written record is thin on Google (8 reviews) but backed by a much larger sample on HomeAdvisor — 4.8 stars from 165 ratings, with 93% five-star, where HomeAdvisor lists the company at 21 years in business. Reviewers consistently describe fast, clean, one-day installs: crews that grind down old concrete with little dust, apply a moisture barrier as a matter of course, and leave a finished floor that holds up. One June 2026 customer had a basement floor, a garage floor, and a pool deck all done by the same crew and named four different workers as outstanding to work with. A 2023 review described an old plywood-covered workshop floor transformed into usable space with an epoxy coating. One June 2026 review, while praising the floor itself, said the crew left trash on site after the job — a minor but real ding on an otherwise clean-work reputation. For a garage, basement, or pool-deck floor coating, the reviews — thin in number on Google but deep on HomeAdvisor — describe a company that does the job in a day and does it cleanly; just confirm site cleanup expectations going in.
professional crew to install in one day. Final product looks great. Would recommend
Did a great job on the floor but left trash on site.
The crew at Gnu Garage/Durabull Epoxy Floors did an outstanding job at my house. I had my basement floor done, then my garage floor coated, and finally my pool deck finished. Nick, Matt, Ryder and Chris were all outstanding to work with and did a professional job throughout all three projects from the initial visit and quoting through final finishing of the floors. They answered all my questions, made suggestions to improve the results, and accommodated a last minute change to my color selection. They made a tremendous difference in the look of the spaces.
The finished product came out great. Installation crew was very professional and did clean work with no mess left behind. Couldn’t ask for a better company to work with. Highly recommend.
Chris and his team are some of the most talented, honest and experienced when it comes to refinishing my garage floor. Right from the first phone call when I was gathering estimates, Chris mentioned one thing “make sure all your estimates include a moisture barrier”, then most if not all subsequent estimates said it wasn’t needed. I know it does because of our freeze/thaw seasons and the fact that concrete will absorb moisture from the earth and from around the slab/foundation. We couldn’t be happier with the final results. I have included a before and after photos. Thank you GNU garage. A++++
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Re-analyzed rating 4.3 → 4.6
Added 8 new comments, added 57 new photos, established 4.3 rating
Masonry projects4.7
Full renovations4.6
Tile precision4.5