Liquid screed in Colindale, Grahame Park and Brent Cross Town
Open floor plates repeated storey after storey are where a self-levelling screed pays for itself. Colindale's new flat blocks, the rebuilt Grahame Park and the homes at Brent Cross Town all take big volumes of screed, one level at a time, and a pump gets that down far quicker than a team with barrows. A fifth of Barnet homes, 20%, went up after 2000, so newer floors make up a good slice of the borough. By the time a new floor plate is ready for us, its insulation, acoustic layer and heating pipes are already down, and the pour can follow straight on.
Because the mix settles to its own level, hitting SR1 or SR2 flatness under a 2m straightedge is well within reach. Shrinkage is very low, so a wide bay needs only a fraction of the joints a trowelled floor would, and the screed wraps around heating pipes without trapping air.
It is also thin. In a home, a floating liquid screed can be from about 35mm, and on a commercial floor from about 40mm, where sand and cement would need 65mm or 75mm. For an extension whose floor has to line up with an existing door threshold, those saved millimetres count.
Two families of liquid screed exist, one calcium sulphate and one cement based, and they behave differently on drying, sanding and wet rooms. The calcium sulphate side and its grades are covered on Barnet's anhydrite flow screed page, and the liquid versus sand and cement guide helps if you are choosing between the two methods.
Getting a screed pump to a Barnet flat or extension
Nothing heavy comes indoors: the mixer and pump work from the street and only the hose travels to the room. In Barnet the planning is about where that kit stands, since plenty of homes sit on permit parking streets or at the top of a shared stair.
Extending an inter-war semi at the back? The pump normally sits on the drive or at the kerb, with the hose run through the hall or along the side passage. In a flat, it can go up the stairwell to an upper floor, as long as that route is clear and sheeted. Where the pump has to stop some way off, pace out the distance between kerb and room and add it to your enquiry.
Three jobs come before pour day in a Barnet extension: run edge strip along the bottom of every wall, sheet the insulation with a membrane and tape every overlap, then fix a dam in each doorway so the screed cannot escape into the old house. If you would rather not do that yourself, our insulation and membrane fitting covers the whole build-up.
You can cross it by the second day, yet that is a long way from ready for a floor finish. As a rough rule each millimetre of depth takes a day to dry up to 40mm, and the rate slows past that, so get a moisture reading before any flooring goes down. Over the border, Brent's liquid screed page works the same way.
Liquid Screed prices in Barnet
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 Barnet
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 Barnet
Barnet is about 19.9 miles east-north-east of our Slough base as the crow flies, with postcodes including EN5, N11, HA8 and NW11. The nearest towns to it are Haringey (4 miles), Borehamwood (4.4 miles), Brent (4.7 miles) and Camden (5.2 miles).
More on liquid screed, part of our screeding services.
