Diamond Flooring LLC

Diamond Flooring LLC is a Dorchester-based hardwood specialist — installation, refinishing, and custom wood floor borders — that owner Andy Nguyen has built into a name recognized across dozens of Boston-area towns, according to its own listings. Two independent-looking review aggregators tell close to the same story: prosgrade.com puts them at a 5.00 average across 109 reviews, with people repeatedly pointing to fast responses, clear explanations of what a job would involve, and work that wrapped on the timeline and price first quoted. Porch shows 4.84 across 112 online reviews, and Alignable lists the company as Highly Recommended within Bona's Certified Craftsmanship network for wood floors. The close-but-not-identical numbers from prosgrade.com and Porch suggest they're likely drawing on much of the same underlying review base rather than two fully separate track records — still, nothing in either tells a different story, and there's no negative review turning up anywhere public. One thing worth asking about directly: Houzz lists the company as a "Licensed Home Improvement Contractor," but BuildZoom shows the associated Massachusetts HIC number, 192108, as expired since October 2022. That's a real gap between what one directory claims and what the license listing shows, and it's worth clearing up before signing anything. It's also worth noting Porch places the business in Braintree while Houzz and BuildZoom tie the same phone number to a Dorchester address, so confirm which location is actually running the job. For a hardwood refinishing or new-floor install in the Boston area, the volume and consistency of outside reviews make Diamond Flooring worth a call — just get the licensing question answered and ask to see recent work before booking.