Reading The Slab
Concrete varies far more than people expect, and old concrete varies most of all. A troweled slab has a dense closed skin that has to come off before anything will stick to it. An older slab may be soft at the surface, carry previous coatings, or still have adhesive on it from tile or carpet. And a slab poured low on this kind of ground may well be carrying vapour up from underneath.
So we grind a test patch and take a moisture reading before quoting, which means the number you get is priced against your actual floor rather than an average.
Choosing The Build
Something walked on indoors takes a straightforward sealed build in a solid colour. Anything carrying vehicles or point loads wants more thickness and a harder wear layer. A floor that gets washed down needs aggregate through the top coat for grip and coving up the wall so there is no joint holding water, and where there is chemical exposure the resin gets chosen against what is genuinely on the shelf, which is a conversation rather than a catalogue.
Repairs Come First
Cracks are cut out and filled properly rather than skimmed over, because a crack that has moved once will move again and a coating simply bridged across it splits. Spalled and pitted areas get rebuilt to level, and low spots that hold water are filled, since a coating follows the shape of whatever is underneath it and will never fix a bad fall on its own.