Floor screed questions

None of the Irish screeding contractors' websites we checked on 29 October 2026 publishes a price per m². The price comes from your floor: the area, the depth, the type of screed, access for the pump and what's under it.

McMahons lists Kilsaran KPRO Floor FLS 401 sand and cement screed at €11.90 ex VAT (€14.64 incl. VAT) per 25 kg and the polymer-modified FLS410 at €12.57 (VAT not stated).

Goodwins lists Larsen SLC 2000 at €34.99 per 25 kg incl. VAT, €31 for 16 or more bags. Home Value lists Bostik Cempolay Ultra at €34.95.

5 m³, weighing 10.5–11 tonnes at 2,100–2,200 kg/m³. Our arithmetic.

Sand and cement: 25 mm bonded, 50 mm unbonded, 65 mm floating in a house (MPA). Liquid screeds: from 35 mm floating (Gyvlon, Cemfloor) or 45 mm (Roadstone FlowPlus).

At least 25 mm of cover for Roadstone, Cemfloor and Gyvlon liquid screeds. Sand and cement: 65–75 mm total over heating (Designing Buildings Wiki).

Roadstone recommends no more than 80 mm for FlowPlus, because deeper screed takes longer to dry.

About one day per mm for the first 50 mm of sand and cement (BS 8204-1), and one day per mm for the first 40 mm of liquid screeds, then slower (Roadstone, Gyvlon).

Liquid screeds: 24–48 hours. Mapei Topcem: 12 hours. Sand and cement is cured under polythene for at least 5 days (MPA).

75% relative humidity or below for most finishes (Ronacrete). Gyvlon gives 0.5% moisture for calcium sulphate; Roadstone about 2% by carbide for FlowPlus.

Gyvlon: from 7 days. Roadstone FlowPlus: from 14 days, at no more than 45°C. Mapei Topcem: after 4 days.

Each suits different floors. Liquid is thinner, faster and self-curing; sand and cement can be laid to falls and suits small jobs.

Calcium sulphate screed does, then priming (Gyvlon). Cemfloor says its cement-based screed doesn't need sanding to remove laitance.

Concrete is structural, with larger aggregate. Screed is a levelling layer on the slab or on insulation.

A floor slab made with natural hydraulic lime on a bed of foamed glass or expanded clay, used in old solid-wall houses so moisture can move through the floor.

In High Radon Areas, yes: a radon membrane has been required since 1 July 1998, and every building since then needs a standby sump (EPA).

All 12 Leinster counties: Dublin, Kildare, Meath, Wicklow, Louth, Laois, Offaly, Westmeath, Longford, Carlow, Kilkenny and Wexford.

We pass your request to one screeding contractor who covers your county. Your number isn't sent to a list. They ring you, ask about the floor and your dates, and price it from the drawings or a look at the site. Nothing is booked until you say yes. Naming a manufacturer or merchant on this site doesn't mean they're involved in your job.

No. The quote request is free.

No. Floor Screeding is an introduction service run by Bartlomiej Standa, trading as Elevate Ireland. We pass your request to one screeding contractor who covers your county.