Concrete floor grinding in Cork

Concrete floor grinding takes the top off a concrete floor with a machine that runs diamond tooling across the surface, removing high spots, coatings, paint, adhesive and the weak surface skin. Euro Concrete grinds floors flat and clean, ready for polishing or for a new floor to go down.

The grinder carries heads fitted with diamond segments, which rotate against the concrete as the operator walks the machine across the floor. Coarse diamonds cut fast and take off coatings and high spots, and finer diamonds follow to smooth the scratch pattern. Edges and corners the big machine cannot reach are ground with a hand grinder. Dust extraction runs on the grinder throughout, which keeps the room workable and the surface clean for whatever comes next. On a new slab, grinding takes off the laitance, the thin weak layer left as the concrete dries, so an adhesive or coating bonds to the sound concrete underneath.

Grinding takes the surface of a concrete floor down to flat, clean, sound concrete with coarse diamonds; polishing carries on with finer and finer diamonds until the slab shines. Euro Concrete grinds floors as a finished job in itself, as preparation for another floor, and as the first stage of a polished floor.

A ground floor is matt and slightly coarse to the touch, which is the surface a resin, epoxy, tile adhesive or screed needs to key into. Polishing adds several stages beyond that, each closing the scratch pattern of the last, and the number of stages sets whether the finish ends up matt, satin or glossy. If the floor is being covered, polishing adds nothing, so grinding is where the job ends. If the concrete itself is to be the finish, the work continues to concrete floor polishing, priced as one job with the grinding.

Yes. Euro Concrete grinds concrete floors down to take off high spots, ridges, trowel marks, old coatings and the weak top layer, leaving a flat, sound surface. Grinding removes a thin layer at a time, so it corrects an uneven surface rather than lowering a whole floor to a new level.

The grinder works across the floor in overlapping passes, taking most off where the floor stands proud and least where it is already low, until the surface is even. Coarse diamonds do the heavy removal, and finer ones follow if the floor is going on to be polished. It is the right tool for a slab with lumps of old adhesive, a lip between two pours, or a trowelled finish too rough for a new floor covering. Where a floor has to come down further than grinding can take it, or go up to meet a new level, the answer is breaking out or a screed laid by a flooring installer.

Common floor grinding mistakes are starting with the wrong grit, grinding without dust extraction, missing the edges, and not checking for pipes or cables near the surface. Euro Concrete plans each floor around the finish that goes on next, so the grind suits the coating, adhesive or polish that follows.

Starting too fine leaves coatings and high spots behind, while starting too coarse on a soft slab cuts deep scratches that later passes struggle to remove. Grinding without extraction fills the building with silica dust and leaves a surface coatings will not bond to. Edges and corners the main machine cannot reach need a hand grinder, or the finish stops short of the walls. Heating pipes, conduit and shallow mesh in a thin screed can be damaged if the depth is not checked first. The last mistake is grinding for the wrong finish: a surface ground for epoxy is too rough to leave as a floor, and one polished smooth gives a coating nothing to grip.

Euro Concrete does not work to a fixed square metre rate, because the price of grinding depends on the floor area, the coating or adhesive on it, the flatness needed and the access. Ring Sean on 086 881 9848 with the area and a few photos of the floor, and we will price the job.

A bigger floor lowers the cost per square metre, since the machine covers open ground quickly and the setting up is spread over more area. What has to come off matters most after size: bare concrete grinds quickly, while epoxy, paint or thick tile adhesive clogs the diamonds and takes several passes. Floors with ridges or a poor finish take longer to bring flat. Rooms broken up by walls, pillars or fixed units add edge work with a hand grinder. If the floor is being ground as the first stage of polishing, the grinding is priced with the polishing as one job.

Euro Concrete Services is a floor grinding contractor covering all of County Cork, out of Skibbereen and Cork city. Ring Sean on 086 881 9848 with where the floor is, roughly how big it is and what covers it now, and he will give you a date for the grinder and extractor to come in.

That takes in Cork city and its suburbs, Cobh, Carrigtwohill and Youghal to the east, Charleville and Mitchelstown to the north, and Dunmanway, Bantry and Schull in the west, with farms and industrial units between the towns included. The grinder and extractor run on power, so say what supply is available on site, and whether the room will be clear of other trades on the day. Photos of the floor, with close-ups of any coating or adhesive, let us judge the passes the job needs before we come.