National Granite Flooring

National Granite Flooring is a commercial-only flooring subcontractor headquartered in Merrimack, New Hampshire, installing tile, hardwood, stone, carpet, laminate, linoleum, vinyl, and rubber flooring for general contractors on commercial and institutional projects — offices, schools, hospitality, industrial, medical, warehouse, and multi-family buildings — across the Northeast. The company says it's been doing this since 2008. Its own site describes no residential or homeowner services, so this isn't a business homeowners can typically hire directly for a house floor. The written record here is thin and mostly comes from trade press rather than customer reviews. Local news coverage names the company as a subcontractor on the Alta on the Row project in Worcester and separately reports it restoring a hallway floor on another job. A staff listing names an estimator on the team. There's a single, unreviewed five-star Google rating with no written account behind it. Given how little customer-facing detail exists and the fact that this is a commercial subcontractor rather than a residential contractor, anyone looking for home flooring work should look elsewhere — and a general contractor considering them for a commercial project should ask for references from comparable recent work.