Commercial flooring materials
For the way your building works.
A hard-working finish with a clear maintenance plan.
Specify with confidence
Polished concrete turns an existing slab into a finished floor. Grind and seal takes a similar path with a topical sealer instead of a mechanical polish. All County Flooring installs both across the Bay Area and the Sacramento corridor and does not manufacture the material. Slab condition, aggregate, and moisture determine what the finished surface can be.
Warehouses and industrial spaces
Retail and showroom floors
Civic and public interiors
Benefits, applications, process, and care
A natural-looking, industrial-looking finish for retail and industrial environments is what grind and seal and polished concrete deliver. There is no material to buy on top of the slab, so the budget goes into labor, equipment, and the finish schedule. The result is a floor that reads as part of the building and holds up to carts, pallets, and foot traffic without the seams and edges that catch on a tile floor.
Maintenance is the other benefit. A properly finished slab is dust mopped and cleaned with a neutral product, with no wax program and no stripping cycle. Where a topical sealer is used, the sealer is renewed on a schedule that matches the traffic, which is a smaller and more predictable job than a full floor replacement.
Polished concrete and grind and seal suit retail floors, showrooms, warehouses, industrial spaces, service areas, back of house corridors, and civic buildings where a durable, low maintenance surface fits the design. Existing slabs in sound condition are the best candidates.
Not every slab is a candidate. Heavy chemical exposure calls for a resinous system, and a slab with moisture problems needs mitigation before any finish goes down. Cracks, patches, and aggregate variation remain visible in a polished floor, which some clients want and others do not, so samples are prepared and reviewed before work is scheduled.
We start with the slab: existing coatings, adhesive, moisture vapor emission, pH, flatness, and the aggregate beneath the surface. Coating and adhesive removal, shot blasting, and the initial grinding cuts are performed by our own crews with dust control in place. Grinding then steps through progressively finer grits, with densifier applied as the process requires, followed by joint filling, a guard, or a sealer depending on the finish selected.
Sequencing is planned around the building. Polished concrete work is dusty and noisy in its early stages, so areas are isolated, dust is controlled at the machine, and the work is phased where the space has to stay in service. On public work, union certified crews, DIR registration, certified payroll, and prevailing wage are handled as part of the job. Estimates are free, and the work is installed across the Bay Area and the Sacramento corridor.
Daily care is dust mopping and damp mopping with a neutral pH cleaner. Acidic products, including many bathroom and heavy duty cleaners, can etch the surface and should stay off the floor. Spills are easier to handle before they dry, and grit tracked in at doors acts like an abrasive, so mats and a regular dust mop routine protect the sheen.
Where a sealer was applied, renewal follows the traffic and the product data. Joints and filled cracks should be watched and maintained, since a failing joint filler is the most common way a small problem becomes a larger one. The care instructions for the specific finish that was installed are handed over at completion.
Polished concrete questions
Polished concrete is mechanically refined through a sequence of diamond grits, with densifier and often a guard, so the shine comes from the surface itself. Grind and seal flattens the slab and applies a topical sealer. Grind and seal is usually the more budget-friendly path, and each holds a different look.
Not every slab. The surface has to be sound and hard enough to take the process, and moisture has to be under control. Existing coatings, heavy patching, and soft or failing concrete change what is possible. The slab is assessed and a sample area prepared so the finish can be reviewed first.
Grinding runs with dust collection attached to the machine, which keeps most of the material out of the air. The work is still loud in its early stages, so areas are isolated and the schedule is built around the building where that matters.
Yes, they remain visible in a polished floor, and that character is part of the look. Cracks and joints are cleaned and filled before the finish steps, so they are stable and clean rather than open.
Dust mopping and damp mopping with a neutral pH cleaner cover most of it, and acidic cleaners are avoided because they can etch the surface. Where a sealer was used, it is renewed on a schedule that matches traffic and the product data.
Need to compare systems? We can walk through maintenance, moisture, schedule, and long-term value with your team.
Request a Quote ↗