Guide · East Sussex · BN7

Lewes Microcement shower trays: what actually goes on the wall

For Lewes refurb clients, microcement shower trays 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 shower trays solves both — one continuous mineral surface at roughly a third of the stone-and-fixings price. The Lewes catchment we work across covers BN7, BN8 — reached via the A27 / A26, 15 min from brighton via the a27. Nearby coverage includes Ringmer (2 mi), Kingston near Lewes (2 mi), Firle (5 mi). Site conditions matter here: chalk substrate — dry, stable, easy to prime. That shapes the primer and sealer specification below, not just the visible finish.

What we're actually installing

Tray substratePre-formed poly-fibre cement tray, or wet-formed screed base to 1:80 fall
Tanking2-coat cementitious tanking including tray and 1800 mm wall splash zone
FinishReinforced base + 2× 1 mm colour + 3-coat wet-room sealer
DrainLinear drain to the far wall preferred over central point drain
Slip ratingR11 with fine broadcast aggregate in the top sealer coat

Substrate and preparation

A microcement shower tray is a formed cement-and-poly-fibre substrate falled to a linear or square drain, then microcement finished. The tray sits proud of the surrounding floor or flush with it — the flush detail is more designed but harder to build; the surrounding floor must accept the fall.

Design detailing choices

A tray flush with the surrounding floor reads as one continuous surface — the reason to specify microcement in the first place. Colour the tray the same as the wall it's set into; break the palette only if you want the shower to read as a distinct object.

The local considerations for Lewes

Postcode coverage
BN7, BN8 — free surveys inside 5 working days. Nearest access: A27 / A26.
Local site character
Cliffe Industrial Estate resin refits sit alongside period-home kitchen work in the Nevill and Wallands. chalk substrate — dry, stable, easy to prime.
Nearby coverage
Ringmer (2 mi), Kingston near Lewes (2 mi), Firle (5 mi), Barcombe (4 mi).

How the install actually runs

  1. Tray buildDay 1–2

    Preformed tray installed or wet-formed screed base laid to 1:80 fall.

  2. Tank + baseDay 3

    Tanking + fibreglass-reinforced base coat over tray and walls.

  3. Colour + sealerDay 4–6

    Two colour coats + 3 coats wet-room sealer with anti-slip broadcast.

Common install-time pitfalls

  • Fall shallower than 1:80 — puddles at the low corner.
  • Missing anti-slip broadcast — the tray becomes a slip hazard when wet.
  • Point drain vs linear — point drains need a 4-way fall which is harder to build and drains slower.
  • Sharp corner at the tray/wall junction — hairline cracks at cure; use a preformed corner bead.

Common questions from Lewes clients

The short version

For shower trays in Lewes: expect a £1,600–£3,800 per installation budget, a build programme of about 3–5 working days on site, and a survey-to-install window of 4–6 weeks. The finish is one continuous mineral surface — no joints, no trims, no visible transitions.