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Underfloor Heating Screed · East Sussex

Screed for Underfloor Heating in Peacehaven

We screed over wet underfloor heating in Peacehaven, in wraparound extensions, opened-up ground floors and new homes. Where a house was rebuilt in stages, the old and new parts can sit at different levels, and a heated floor has to run across both at a consistent depth over the pipes. Depending on the system, the screed is pumped liquid or hand-laid sand and cement. Your heating engineer puts the pipes in; we come after.

One heated floor across old and new Peacehaven rooms

A heated floor has to be the same build up from end to end: insulation, pipes, then screed at a set cover. In a Peacehaven house where the original rooms and later additions sit at different heights, that means sorting out the levels before the heating is designed. Sometimes the old floor comes up so that insulation and pipes can run through at one level. On other jobs the new section is built up to match the old one. Either way the decision comes first.

Old concrete floors that were never insulated are the usual obstacle. Heating laid straight on them sends much of its warmth into the ground, so they are normally broken out and replaced, which also gives the height needed for a proper build up.

The cover rules are fixed. Liquid has to clear the pipes by at least 25mm, which normally means 45 to 50mm overall, while sand and cement asks for roughly 45mm on top. Pumped in, a Peacehaven liquid screed surrounds the pipes completely without trapping air, so the room warms faster, and being thinner it often fits where height is short.

Before pouring we make sure there is insulation, a membrane and an edge strip, and fit whichever is missing; what goes under a screed explains each part. Pipe layout and pressure testing are for the heating engineer, since we do not install underfloor heating pipes.

Commissioning heating in newer Peacehaven homes

The newest homes are part of this picture too: 11% of the town's homes date from 2015 or later, and an extension or garden room added to a recent house can usually match an insulated build up, which makes a heated floor simpler to join.

The screed has to dry before it takes full heat, and the timing depends on the material. Calcium sulphate can usually take gentle heat after roughly 7 days, but sand and cement should be left for 21 days at the very least. From then on, commissioning is slow: the temperature goes up a little each day so moisture leaves the floor evenly and no cracks open. Once the pour is finished we leave you that schedule in writing.

The finished floor also has to suit the covering. Tiles, LVT and engineered wood each need a flat, dry base, and the moisture test decides when they go down.

For a heated floor, trade2base put liquid screed at £20 to £35 per m² in June 2026. For the same service a few miles west, see our Brighton and Hove underfloor heating screed page.

Underfloor Heating Screed prices in Peacehaven

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 Peacehaven

Underfloor heating loops marked out in red before floor screeding
Underfloor heating loops marked out in red before floor screeding.

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 Peacehaven

As the crow flies, our yard in Slough is about 58.1 miles from Peacehaven, which lies to the south-south-east. Postcodes here include BN10, and Newhaven (2 miles), Seaford (4.7 miles), Lewes (5.4 miles) and Brighton and Hove (6.7 miles) are close by.

More on underfloor heating screed, part of our screeding services.

FAQs

Underfloor Heating Screed in Peacehaven: your questions

How thick is screed over underfloor heating?

Liquid needs 25mm or more on top of the pipes, giving 45 to 50mm in most homes. With sand and cement, plan on about 45mm of screed over the pipes and a thicker floor overall. In a Peacehaven extension joining an older part of the house, the finished floor level of the existing rooms often decides which is practical. See our screed thickness guide.

Can underfloor heating go into a bungalow without raising the floor?

Only if there is room below the current finished level. In most cases the old floor has to come out so insulation, pipes and screed fit within the same height. Building pipes and screed over what is there lifts the floor and leaves a step at every doorway. We measure the heights before suggesting a build up.

Who commissions the heating once the screed is down?

Your heating engineer runs the system, but the screed sets the pace. We give you a written heat-up schedule based on the screed type: from about 7 days for calcium sulphate, at least 21 days for sand and cement, then a gradual rise in temperature. Following it protects the floor from cracking.

Free, no-obligation quote

A fixed price for your Peacehaven floor