Preparing unit floors across Porters Wood for refits
When a unit at the Gryphon Industrial Park or the Caxton Centre changes hands, the floor can be left with carpet tile glue, painted walkways, bolt holes from old racking, or a sealer that no adhesive will grip. Each one has to go before a new finish, compound or screed can bond.
Grinding removes them by cutting, not scraping. Diamond segments set in a rotating head take the top of the concrete away in thin passes, so a coating, residue or weak skin of laitance comes off along with a fraction of the surface beneath. Ridges at old bay joints and trowel marks come down in the same passes. What is left is open, sound concrete that a primer can soak into.
A refit at Spring Valley Business Centre or Beech Industrial Centre would follow the same order. The floor is ground, swept and vacuumed, then handed on for levelling, a new screed, a resin system put down by a specialist, or the new covering itself.
The method has limits. It suits thin layers and local high spots. On a very large open floor, or where a coating is thick, shot blasting and other preparation methods can be quicker, and a slab that is cracked or breaking up needs concrete floor repair before anything else. Where the refit also calls for a new wearing layer, our commercial screeding service lays it after the grind.
Dust, depth and St Albans home extensions
Grinding has a place in houses too. Extensions built onto the city's inter-war and post-war semis have floors that must match the existing levels. If the new slab finishes a few millimetres proud of the old floor, that raised edge will telegraph through tiles or LVT, and taking it off with a grinder is quicker than building the rest of the room up to meet it. A floor that falls or dips across the room is different: a grinder only removes material, so it cannot raise a low area, and the answer there is to grind the high points and then level or screed.
Old adhesive is the other household job. Lift a carpet or a vinyl sheet from an older floor and the residue left behind can stop new adhesive and compound from sticking. Latex screed for awkward St Albans bases can sometimes go over thin, sound residue, but soft or thick glue has to be ground off.
A garage being turned into a room usually has an oil stained or painted slab, and that has to be ground clean first.
Cutting concrete or screed throws up fine silica dust that is harmful to breathe, so the extractor is connected before the machine starts, doorways are sealed with sheeting and the rest of the house is kept closed off. Depth is watched too: take too much from a screed and it ends up below its minimum thickness.
How we price floor grinding in St Albans
A fixed written price within 24 hours, once we know the area and what has to come off. See our floor screeding cost guide.
Who grinds your concrete floor in St Albans
K & B Screeding’s own team, led by director Donatas Bardisevicius. Founded 2019, company 12298780.
See what customers say in our Google reviews and on our testimonials page.
Concrete Floor Grinding from Slough to St Albans
As the crow flies, our yard in Slough is about 20.1 miles from St Albans, which lies to the north-east. Postcodes here include AL3, AL4 and AL1, and Harpenden (4.5 miles), Hatfield (5.2 miles), Hemel Hempstead (5.7 miles) and Welwyn Garden City (6.7 miles) are close by.
More on floor grinding, part of our screeding services.
