Keeping heated floors shallow in Rayleigh's post-war houses
Heating pipes need a set depth of screed over them, and every millimetre has to be found somewhere. Your new floor has to meet the hall and kitchen of a Rayleigh semi at the same height, which leaves insulation, pipework and screed fighting over a fixed depth.
With a pumped mix, the pipes need at least 25mm of cover, so the screed ends up about 45 to 50mm thick. Packing sand and cement by hand calls for nearer 45mm above the pipework, and the floor grows deeper as a result. That difference is why owners adding heat to an older house often choose liquid: the thinner screed leaves room for more insulation below, which sends more of the heat upwards. Our page on pumped liquid screed in Rayleigh explains how it is laid.
A pumped mix also closes around every pipe, leaving no trapped air, and its thinner layer heats through sooner. Even so, it does not suit every room. If the heated room is a wet room, or the floor could get wet, it needs a screed with a cement base.
We check the insulation, membrane and perimeter strip ahead of the pour and can provide them if needed, and the heating engineer will already have fixed and pressure tested the pipes. We coordinate dates with the installer so the pour follows straight after.
To work out how deep each layer needs to be, see our guide to screed depths.
New build heating at Land North of London Road
On the newer homes at Land North of London Road, the work is mainly new build screeding over heating pipes during construction. There the depths are fixed by the design, and the pour is programmed between the heating installer and the following trades. Homes built since 2015 account for 7% of Rayleigh's housing, and that share will grow as the scheme is built out.
Whatever the house, the first heat-up must be gentle. With calcium sulphate the heating can normally come on about a week after we pour. With sand and cement, leave it three weeks as a minimum. Your heating engineer then commissions the system slowly, nudging the temperature up in stages, and we leave written guidance on that schedule so nothing is rushed.
A heated garden room at the end of a Rayleigh garden is no different, just smaller. The screed still needs full cover, an edge strip and a slow first heat-up. For a heated room with a tight programme, there is more on timing in how long screed takes to dry.
Underfloor Heating Screed prices in Rayleigh
Liquid screed over underfloor heating: £20 to £35 per m² supplied and laid (trade2base, June 2026), so £700 to £1,230 for 35 m². trade2base gives these figures excluding VAT. See our floor screeding cost guide or screed calculator.
Who lays your underfloor heating screed in Rayleigh
K & B Screeding’s own team, led by director Donatas Bardisevicius. Founded 2019, company 12298780.
See what customers say in our Google reviews and on our testimonials page.
Underfloor Heating Screed from Slough to Rayleigh
As the crow flies, our yard in Slough is about 54 miles from Rayleigh, which lies to the east. Postcodes here include SS6, and South Woodham Ferrers (4.1 miles), Wickford (4.1 miles), Rochford (4.4 miles) and Southend-on-Sea (5.6 miles) are close by.
More on underfloor heating screed, part of our screeding services.