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Sand and Cement Screed · Buckinghamshire

Sand and Cement Screeding in High Wycombe

Mixed on site and laid by hand, our sand and cement screed in High Wycombe is compacted until it forms a dense, level floor. With only 9% of the town's homes built before 1919, the reason to choose it here is usually the type of job rather than the age of the house: wet rooms laid to falls, garage conversions, small rooms with awkward access, and floors that need a cement base or have to carry load early.

Where hand-laid screed still suits High Wycombe homes

Not every floor wants a pump. Some are better mixed in a barrow and laid a bay at a time, and in High Wycombe a few kinds of job fall into that camp regardless of how old the house is.

Shower rooms and wet rooms lead the list. Walk-in showers with no tray rely on the floor dropping towards the drain, and a barrow-mixed screed can be trowelled to that fall. Calcium sulphate is unsuitable anywhere a floor may get wet, so cement is the material for these rooms in any case.

Garage conversions follow. An old garage slab normally sits below the house floor, and with insulation and a membrane down, screed raises it to meet the hallway. Each layer is explained in the garage conversion floor guide on our site.

Older houses make up the third group. Terraced homes are 14% of the town, and older terraces tend to have small rooms off a narrow hall, which suits screed carried in and laid one room at a time. When an old floor is dug out and rebuilt, the new screed goes onto fresh insulation and a membrane, and each room can have its own depth.

You can also change the mix. Fibres add between £1 and £3 to each m² and lower the risk of cracking; when they are worth it is covered under fibre reinforced screed.

Bonded or floating screed in a High Wycombe extension

Extending a semi means a new slab from the builder, and the screed over it brings the floor up to the existing level. The depth still to fill decides how that screed goes down.

Where there is space for insulation, the screed floats on it, about 65mm deep for a house. Most new extensions, heated or not, are built this way.

Where the slab already sits near finished height and only a small gap is left, a bonded screed of 25 to 40mm is fixed to the prepared concrete so the two work as one. Bonded screed costs £12 to £18 per m² (trade2base, June 2026) on the published 2026 UK figures.

Whichever applies, build the drying into the programme. Hand-laid sand and cement gives up its moisture more slowly than a liquid screed, about a day per millimetre over the first 40mm and slower after, so wood or vinyl on a 65mm floor waits several weeks. If the programme cannot stretch that far, ask about a sand and cement screed with rapid drying additives. Depths for each build-up are compared in our screed thickness guide.

Sand and Cement Screed prices in High Wycombe

Sand and cement screed: £18 to £25 per m² supplied and laid (MyJobQuote, August 2026), so £450 to £630 for 25 m². MyJobQuote does not say whether these figures include VAT. See our floor screeding cost guide or screed calculator.

Who lays your sand and cement screed in High Wycombe

Bright finished floor screed in a domestic room ready for flooring
Bright finished floor screed in a domestic room ready for flooring.

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.

Sand and Cement Screed from Slough to High Wycombe

As the crow flies, our yard in Slough is about 8.1 miles from High Wycombe, which lies to the north-west. Postcodes here include HP11, HP12 and HP13, and Marlow (4.1 miles), Beaconsfield (4.7 miles), Amersham (6.9 miles) and Maidenhead (7.4 miles) are close by.

More on sand & cement screed, part of our screeding services.

FAQs

Sand and Cement Screed in High Wycombe: your questions

How thick should sand and cement screed be over insulation?

For a house, about 65mm when it floats on insulation; for commercial floors, about 75mm. Go thinner and the screed can crack under load, as the insulation underneath gives slightly. Where heating pipes are involved, leave about 45mm of screed over the pipes themselves, so the floor stays strong and the heat spreads evenly.

Can I lay sand and cement screed myself?

On a very small area, a confident DIYer can manage. A whole High Wycombe extension is another matter. The mix needs to stay consistent, be compacted right through and ruled level across the room before it begins to stiffen. Skimp on compaction and the floor ends up weak and hollow, and tiles on it will fail. If you want a professional figure to compare against, ours arrives in writing, fixed, within 24 hours.

Is sand and cement screed as strong as concrete?

No, and it is not supposed to be, because a screed does no structural work. Compacted properly, it wears well enough for homes and most commercial floors, and a higher strength can be specified for heavier traffic. Its job is to sit on the structural slab or on insulation and give the finish a level base.

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Sand and Cement Screed near High Wycombe

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