# GNU Garage & DuraBull Epoxy

**Trade:** Flooring · **Address:** 59 James St, Worcester, MA 01603 · **Phone:** (413) 505-9980 · **Website:** https://gnugarage.com/contact · **Languages:** English

**Rating: 4.6/5** (medium confidence) — from 8 reviews across 4 sources.
88% of sentiment-scored reviews read net-positive. Last 6 months: 7 reviews, 1 negative.

## The honest read

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.

**Strengths:**
- One-day installs — reviewers cite fast, clean turnaround with little dust
- Multi-surface jobs — one crew handled basement, garage and pool deck
- Moisture barrier standard — reviewers cite proactive advice on floor prep
- Long track record — HomeAdvisor lists 21 years in business, 165 ratings

**Concerns:**
- Site cleanup — one 2026 review cites trash left after an otherwise good job

## Claims & citations

Every claim below is backed by real evidence rows — uncited claims are dropped in code before publication.

- 4.8-star average on HomeAdvisor across 165 ratings, with 21 years in business, free estimates and warranties listed _(confidence: high)_
  - [HomeAdvisor](https://www.homeadvisor.com/rated.DuraBullEpoxiFloors.123191808.html) — “HomeAdvisor: 4.8★ from 165 ratings”
  - [HomeAdvisor](https://www.homeadvisor.com/rated.DuraBullEpoxiFloors.123191808.html) — “HomeAdvisor identifies the exact GNU Garage business in Worcester, reporting 4.8 stars from 165 ratings, concrete and masonry plus epoxy flo…”
- HomeAdvisor star distribution is 93% five-star, 2% four-star, 1% three-star, 1% two-star, 2% one-star across 165 ratings _(confidence: high)_
  - [HomeAdvisor](https://www.homeadvisor.com/rated.DuraBullEpoxiFloors.123191808.html) — “HomeAdvisor star distribution: 93% 5★ · 2% 4★ · 1% 3★ · 1% 2★ · 2% 1★ (of 165 ratings)”
- 4.9-star average on Google across 8 ratings _(confidence: high)_
  - [Google](https://www.google.com/maps/search/?api=1&query=GNU%20Garage%20%26%20DuraBull%20Epoxy&query_place_id=ChIJly2huXME5IkRoe9YjVHeiiQ) — “Google: 4.9★ from 8 ratings”
- Reviewers describe fast, clean one-day installs with minimal dust and a moisture barrier applied as standard practice _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21aWE9WbHVTakJFYnpKRk1WaG1URXMxZDFOZmNHYxAB!2m1!1s0x0:0x248ade518d58efa1!3m1!1s2@1:CAIQACodChtycF9oOmZXOVluSjBEbzJFMVhmTEs1d1NfcGc%7C%7C?hl=en) — “5★ Chris and his team are some of the most talented, honest and experienced when it comes to refinishing my garage floor. Right from the fir…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT205WFRURk9XbkpVUTJKUlZVdExUWEk0U0V4V2FrRRAB!2m1!1s0x0:0x248ade518d58efa1!3m1!1s2@1:CAIQACodChtycF9oOm9XTTFOWnJUQ2JRVUtLTXI4SExWakE%7C%7C?hl=en) — “5★ GNU refinished my garage floor and did an excellent job. The finished results were great. I was surprised at how clean they were - before…”
- A June 2026 review described one crew completing a basement floor, garage floor, and pool deck in the same job _(confidence: high)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2tGbGNXOVlXalZ4VVhsS2FFUklUV0k0Tm1OdllXYxAB!2m1!1s0x0:0x248ade518d58efa1!3m1!1s2@1:CAIQACodChtycF9oOkFlcW9YWjVxUXlKaERITWI4NmNvYWc%7C%7C?hl=en) — “5★ 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 coa…”
- A 2023 review described an old plywood-covered workshop floor transformed with an epoxy coating _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURKaS1HdGl3RRAB!2m1!1s0x0:0x248ade518d58efa1!3m1!1s2@1:CIHM0ogKEICAgIDJi-GtiwE%7C%7C?hl=en) — “5★ GNU refinished my workshop floor with their epoxy coating. Before they arrived my space was just a storage room I didn't want to spend ti…”
- A June 2026 review praised the finished floor but said the crew left trash on site _(confidence: medium)_
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2psQlRYVXpiRnB1WVVWU01XVnJSRTQ1VTB0MlJGRRAB!2m1!1s0x0:0x248ade518d58efa1!3m1!1s2@1:CAIQACodChtycF9oOjlBTXUzbFpuYUVSMWVrRE45U0t2RFE%7C%7C?hl=en) — “4★ Did a great job on the floor but left trash on site.”
- Specializes in Flooring _(confidence: high)_
  - [Official Website](https://gnugarage.com) — “GNU Garage provides one-day epoxy and concrete floor coatings for residential garages, commercial properties, airplane hangars, patios, driv…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xvNFpWZFJVV0pFTUdkaVQwUkdVVWhwTlVSQmRHYxAB!2m1!1s0x0:0x248ade518d58efa1!3m1!1s2@1:CAIQACodChtycF9oOlo4ZVdRUWJEMGdiT0RGUUhpNURBdGc%7C%7C?hl=en) — “5★ professional crew to install in one day. Final product looks great. Would recommend”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2tGbGNXOVlXalZ4VVhsS2FFUklUV0k0Tm1OdllXYxAB!2m1!1s0x0:0x248ade518d58efa1!3m1!1s2@1:CAIQACodChtycF9oOkFlcW9YWjVxUXlKaERITWI4NmNvYWc%7C%7C?hl=en) — “5★ 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 coa…”
  - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT21aWE9WbHVTakJFYnpKRk1WaG1URXMxZDFOZmNHYxAB!2m1!1s0x0:0x248ade518d58efa1!3m1!1s2@1:CAIQACodChtycF9oOmZXOVluSjBEbzJFMVhmTEs1d1NfcGc%7C%7C?hl=en) — “5★ Chris and his team are some of the most talented, honest and experienced when it comes to refinishing my garage floor. Right from the fir…”
  - [HomeAdvisor](https://www.homeadvisor.com/rated.DuraBullEpoxiFloors.123191808.html) — “Services offered (HomeAdvisor): Concrete & Masonry, Epoxy Flooring”
- Also offers Paving _(confidence: low)_
  - [Official Website](https://gnugarage.com) — “GNU Garage provides one-day epoxy and concrete floor coatings for residential garages, commercial properties, airplane hangars, patios, driv…”

## License

Status: **not_found** — verified against the official MA state registry, never self-reported.
Re-check at the official registry: https://contractorhub.mass.gov/s/hic-contractor-search

## Sources

- [Google](https://www.google.com/maps/search/?api=1&query=GNU%20Garage%20%26%20DuraBull%20Epoxy&query_place_id=ChIJly2huXME5IkRoe9YjVHeiiQ): 4.9★ from 8 ratings
- [Google Reviews](https://www.google.com/maps/search/?api=1&query=GNU%20Garage%20%26%20DuraBull%20Epoxy&query_place_id=ChIJly2huXME5IkRoe9YjVHeiiQ): Listed on this source
- [Official Website](https://gnugarage.com): Self-reported profile and service details
- [HomeAdvisor](https://www.homeadvisor.com/rated.DuraBullEpoxiFloors.123191808.html): 4.8★ from 165 ratings

## Recent reviews

- **5/5 · Google Reviews · Spencer B · 2026-07-07**: professional crew to install in one day. Final product looks great. Would recommend
- **4/5 · Google Reviews · George Tomlin · 2026-06-24**: Did a great job on the floor but left trash on site.
- **5/5 · Google Reviews · Gryphn · 2026-06-20**: 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 fr…
- **5/5 · Google Reviews · Bill Peters · 2026-06-20**: 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.
- **5/5 · Google Reviews · allen levesque · 2026-06-10**: 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 …
- **5/5 · Google Reviews · Phil Pergola · 2026-05-04**: GNU refinished my garage floor and did an excellent job. The finished results were great. I was surprised at how clean they were - before, during and after the job (keeping in mind they are grinding down the concrete, yet minimal dust.) Highly recommend them.
- **5/5 · Google Reviews · izabella miranda · 2026-03-14**: GNU did a wonderful job on our garage! I highly recommend them and am so glad we found them for this project. Thank you so much!!
- **5/5 · Google Reviews · David Magnano · 2023-07-22**: GNU refinished my workshop floor with their epoxy coating. Before they arrived my space was just a storage room I didn't want to spend time in, now it's taken on a whole new life and I can't wait to fit out the space. My floor was an old plywood floor with a lot of random stuff adhered to it from pr…

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Data freshness: last scanned 2026-08-24T14:21:29.950Z.
Cite as: GNU Garage & DuraBull Epoxy — Tavlee (https://tavlee.com/contractor/gnu-garage-and-durabull-epoxy-worcester)
Source: https://tavlee.com/contractor/gnu-garage-and-durabull-epoxy-worcester