Flooring guide
Resin coving and upstands: where the floor meets walls
Find out what resin coving does for a concrete floor and whether your space needs it. Send an enquiry to get a specialist firm to look at your home or unit, with no cost and no obligation.
What resin coving actually is
A resin floor stops somewhere. Usually that somewhere is a wall, a plinth or a drain channel. If the coating finishes in a straight line against the vertical surface, you are left with a right-angled join.
Coving replaces that sharp corner with a smooth curve. The installer applies a thickened resin mix into the angle and shapes it so the floor sweeps up the wall by 50 to 100 millimetres. An upstand goes further, running the resin vertically to a chosen height.
The material is typically the same epoxy or polyurethane used on the flat floor, so the colour and chemical resistance match. Because it bonds directly to both surfaces, there is no seam for water or dirt to sit in.
You will see coving in food preparation areas, wash bays and anywhere a floor gets hosed down. But it also appears in garages and workshops where mopping leaves dirty water pooling against the skirting. The curve gives the water somewhere to go.
Why the gap between floor and wall matters
Concrete moves. It expands in summer, shrinks when it dries, and flexes slightly under heavy loads. A rigid coating laid tight against a blockwork wall will eventually crack along that line.
Once the seal breaks, water follows gravity. It runs down the wall and sits in the gap. Over months, moisture works under the resin. You then see bubbling along the edges long before the centre of the floor shows any wear. Read more about this in the guide on [epoxy floor lifting](/prep-and-curing/flaking-and-bubbling).
Dirt collects in the same gap. A brush pushes dust into the corner but rarely pulls it all back out. In a workshop or garage, oil drips run to the edge and stain the joint.
Coving removes the hiding place. The curved profile means a mop or squeegee clears the whole surface in one pass. Nothing traps behind a bead of sealant because there is no bead. The floor and the lower wall become one continuous surface.
Where coving makes the biggest difference
Any room that gets wet benefits. Wash-down areas in food units need it because hygiene rules require cleanable surfaces without dead corners. But domestic garages face similar problems on a smaller scale.
If you park a wet car over an [epoxy-coated garage floor](/flooring/garage-floor-coating-luton), meltwater runs off the tyres and pools at the edges. Without coving, that water sits against the wall until it evaporates or seeps underneath the coating.
Warehouses use coving around column bases and along racking uprights. Forklift wheels push debris into those gaps constantly. A curved base lets the sweeper collect it rather than grinding it into the joint.
Wet rooms, utility spaces and even kennels follow the same logic. If you hose the floor, you want the water to reach the drain rather than stagnate at the perimeter. The choice between a small cove and a taller upstand depends on how high the splashing reaches. A specialist flooring contractor can advise on the right height after seeing the room.
How a specialist fits coving to a resin floor
Coving goes on during the main installation, not after. The contractor prepares the wall base at the same time as the floor, grinding away paint, plaster or old adhesive so the resin bonds to sound material.
They tape off the upper limit of the cove to keep a straight line. Then they apply a primer to both the floor edge and the wall. The coving compound itself is mixed thicker than the body coat so it holds its shape while curing.
Using a hand trowel or a shaped tool, the installer presses the resin into the angle and draws it into a smooth radius. Timing matters here. Work too early and the mix slumps; wait too long and it drags.
Once the cove has set enough to hold form, the main floor coating goes down. It overlaps the base of the cove slightly, fusing the two layers together. The result is a single membrane with no mechanical joint. Full curing times vary, which affects when you can walk or drive on the finished surface. Check the notes on [epoxy floor curing time](/prep-and-curing/curing-time) for typical schedules.
Choosing between epoxy and polyurethane coving
The coving material should match the floor. Epoxy coving suits most indoor environments. It is hard, bonds well to concrete and blockwork, and takes colour pigment easily so it blends with the rest of the surface.
Polyurethane stays slightly flexible once cured. That flexibility helps in buildings where the walls and floor move independently, such as steel-framed units that expand in direct sun. It also handles thermal shock better if the floor gets washed with hot water followed by cold.
For a standard home garage or workshop, epoxy is usually the straightforward option. It costs less than polyurethane and provides the rigidity needed to resist knocks from tools or shelving legs.
The decision also ties into the broader question of which resin system to specify. If you are weighing up options for a new floor, the guide on [epoxy or polyurethane flooring](/prep-and-curing/epoxy-or-polyurethane-luton) sets out the trade-offs. Whatever the choice, the coving compound must be compatible with the topcoat so the chemical bond holds across the curve.
Ask about coving for your floor
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