Guide · West Sussex · BN11
Worthing Microcement basement floors — cost, spec and build programme
For Worthing refurb clients, microcement basement floors sits at the intersection of two things they've usually already tried: the tile-and-grout route (grout-line fatigue) and full-slab stone (cost). microcement basement floors solves both — one continuous mineral surface at roughly a third of the stone-and-fixings price. The Worthing catchment we work across covers BN11, BN12, BN13, BN14 — reached via the A27 South Coast Trunk Road, 22 min from brighton via the a27. Nearby coverage includes Goring-by-Sea (2 mi), Ferring (4 mi), Findon (4 mi). Site conditions matter here: coastal salt air on south-facing elevations. That shapes the primer and sealer specification below, not just the visible finish.
Common install-time pitfalls
- ✕Applying without a moisture test — the finish debonds when moisture cycles.
- ✕Missing DPM on a marginal slab — hydrostatic pressure lifts the finish.
- ✕Ignoring the basement tanking guarantee — voids it and passes liability to the finish.
- ✕Wet-cured sealer trapping moisture — use a solvent-free polyurethane, not wax.
The spec sheet
What the finish sits on
Basement conversions carry the highest failure risk for any floor finish because of upward moisture pressure. Microcement over a properly tanked and drained basement floor is fine; over a damp slab it will lift within a year. The substrate diagnosis matters more than the finish specification.
Detailing notes for your designer
Basements benefit from a lighter microcement tone than the upstairs floor — bounces light into low-ceiling spaces. Continue the colour up onto the plinth as a coved skirting for a smaller, more designed feel.
Working in Worthing
On-site programme
- Moisture testPre-start
Digital hygrometer readings across the slab — must be below 75% RH before any finish work.
- DPM if requiredDay 1–2
Two-part epoxy DPM applied where moisture exceeds threshold. 24-hour cure between coats.
- Base coatDay 3
Reinforced base coat with fibreglass mesh.
- Colour + sealerDay 4–7
Colour coats, then 3-coat polyurethane sealer.
Common questions from Worthing clients
Other guides for Worthing
Microcement basement floors — other Sussex towns
Related products & services
The short version
Worthing basement floors in one line: mineral finish, single continuous surface, hand-applied by our own team, £95–£170 per m², 3–5 working days on site. Free survey with a written spec back inside 3 working days.