Joining old and new floors in Harrow's extended semis
A rear or side extension on an inter-war semi leaves a line across the ground floor where the old house meets the new floor. Even when the heights are close, they rarely match exactly, and a new LVT or tiled floor running through will show the step. A pour of levelling compound brings both sides into a single plane. The same applies where an old hallway or dining room floor dips towards the middle after decades of use.
The work follows a routine. The floor is cleaned, loose material removed and any cracks or hollows assessed. Then it is primed. We pick the primer for what is underneath: concrete, a sand and cement screed, a calcium sulphate base and old tiles each call for one that suits them. Next comes the pour, typically somewhere between about 2mm and around 10mm thick, and the compound runs out into a smooth finish.
Flatness is checked with a 2m straightedge placed on the surface. BS 8204 sets the largest gap beneath it at 3mm for SR1, 5mm for SR2 and 10mm for SR3. SR1 is the class many thin sheet finishes demand, and that includes the LVT often chosen for open kitchens.
Flats make up 33% of Harrow's homes, and those floors often need the same treatment when new flooring goes in. For a very thin smoothing coat, latex screed is an option. Choosing a fast drying compound means the flooring fitter is not left waiting long. If the survey shows the base is not sound, we say so before any compound is ordered.
Wealdstone units and when Harrow floors need a screed
Industrial units on Wealdstone's Waverley Industrial Estate and elsewhere in the borough are a different job from a kitchen. When a unit changes hands or an office area is refitted, the slab often needs repair and levelling before new vinyl or carpet tiles, and the commercial space within the mixed use development on the former Kodak site will need the same before fit-out. Larger works are covered by our commercial screeding page. Levelling a unit is usually planned around the tenant's move-in date, with fast drying products chosen to fit it.
Some Harrow floors are beyond what compound can fix. If a floor is badly out of level, pouring compound deep enough to fix it can lead to cracking and debonding. If an old concrete floor has cracked or settled, as they often have in the borough's inter-war houses, levelling over it only hides the problem. A new screed laid by hand in Harrow is then the better answer. We would rather quote for the right job once than level a floor that fails under the new finish.
In a neighbouring borough, see floor levelling in Ealing.
How we price floor levelling in Harrow
A fixed written price within 24 hours, once we know the area and the base. See our floor screeding cost guide.
Who levels your floor in Harrow
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.
Floor Levelling from Slough to Harrow
Harrow is about 13.5 miles east-north-east of our Slough base as the crow flies, with postcodes including HA3, HA8, HA1 and HA5. The nearest towns to it are Bushey (3.8 miles), Brent (4.6 miles), Watford (5 miles) and Ealing (5.3 miles).
More on floor levelling, part of our screeding services. Not sure whether you need a thin compound or a full flowing screed? See self levelling screed explained.