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Liquid Screed · Hertfordshire

Liquid Screed in Potters Bar

Knocking through to an open plan kitchen is a familiar project in Potters Bar's semis, and pumped liquid screed is well suited to it. The mixer feeds it straight in, it settles flat across the whole knocked-through room in a single visit, and you can walk on it after 24 to 48 hours. In Potters Bar, 42% of homes date from 1945 to 1972, and when you extend one of those, the new floor has to line up with an old one.

Open plan kitchens in Potters Bar semis

In a typical project, the back wall of a semi comes down, a new extension goes on, and the kitchen, dining area and extension become one room. The floor in that room now has three parts: the original slab, any old screed on top of it, and a new extension base. Liquid screed ties them together.

The trick is height. Getting insulation and screed to the right depth to match the existing floor is often the main challenge in these houses. Because liquid screed can be floated at around 35mm in a house, a semi has more room left for insulation than a traditional screed allows. Levels are set across the whole room before the pour, and the self-levelling screed finishes to SR1 or SR2 under a 2m straightedge without power floating.

Speed helps too. A large room is poured in one visit, and the builder can walk on it after a day or two, although flooring still has to wait for it to dry. The thinner layer pays off in drying too, at roughly one day per millimetre up to 40mm. Our guide on liquid versus traditional screed compares the two methods.

There are calcium sulphate and cement based versions, and which one goes in depends on what the room is. Where a kitchen extension includes a shower room or utility, the wet area may need a different product. If the extension has heating in the floor, read our page on heated floor screed in Potters Bar as well.

New homes on the High Street and Dugdale Hill

New building is on its way in Potters Bar. Chase New Homes has a 4.5 acre High Street site, once Canada Life offices, for around 260 homes, and the Hertsmere Local Plan names garden suburb sites west of Dugdale Hill and on the former golf course off The Avenue. Flats and houses on schemes like these commonly use liquid screed over underfloor heating.

For a site manager, the advantages are area and programme. A pump can cover large floors in a day, fewer joints are needed than with sand and cement, and trades can walk on the floor soon after. On an apartment block, the hose runs from the pump to each floor, so we plan the route and the order of pours with the site team. Specified CA grades are covered on the calcium sulphate flow screed page.

For single homes, access is the main question. Tell us where the lorry could pull up and roughly how many metres of hose it would take to reach the room. For projects just outside town, see our liquid screed in Hatfield page.

Liquid Screed prices in Potters Bar

Liquid screed: £24 to £31 per m² supplied and laid (MyJobQuote, August 2026), so £960 to £1,240 for 40 m². MyJobQuote does not say whether these figures include VAT. See our floor screeding cost guide or screed calculator.

Who lays your liquid screed in Potters Bar

Finished screed floor ready for flooring
Finished screed floor 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.

Liquid Screed from Slough to Potters Bar

As the crow flies, our yard in Slough is about 22.5 miles from Potters Bar, which lies to the east-north-east. Postcodes here include EN6, and Borehamwood (4.1 miles), Hatfield (5 miles), Enfield (5.6 miles) and Barnet (5.7 miles) are close by.

More on liquid screed, part of our screeding services.

FAQs

Liquid Screed in Potters Bar: your questions

How much does liquid screed cost per m²?

The 2026 published UK range is £24 to £31 per m² for liquid screed, or £20 to £35 per m² where it covers underfloor heating. The price for a Potters Bar job depends on the area, the depth and how far the hose has to run from where the pump can park. With the floor size in hand, we put a fixed figure in writing to you inside 24 hours.

How quickly does liquid screed dry before flooring?

Foot traffic is usually fine once 24 to 48 hours have passed. The new floor covering has a longer wait. Up to 40mm deep, each millimetre needs roughly a day, and depth past that slows things further. If it is calcium sulphate over pipes, the heating can normally help dry it from about day 7. The go-ahead for flooring comes from a hygrometer reading, not the date.

Can liquid screed fix a floor that slopes between old house and extension?

Yes, if the slope is within the new screed's depth. The levels are set from the existing floor, and the liquid screed is poured to finish flat across the whole room. If the original floor itself is badly out, part of it may need breaking out or levelling so the finished floor meets at one height all the way through.

Free, no-obligation quote

A fixed price for your Potters Bar floor