Levelling for business refits at Daedalus and Royal Haslar
A shop or office refit is where flatness becomes a must. A unit at Daedalus changing hands, business premises at Royal Haslar, or one of the smaller retail units that came with Rowner Renewal: once new flooring goes down, every hollow in the old base tends to show. Carpet tiles cover a little of it. Vinyl sheet, LVT and big format tiles cover none.
Put a 2m straightedge on the old shop floor and the deepest gap under it gives the BS 8204 class: 3mm or less is SR1, up to 5mm SR2, up to 10mm SR3. Many thin sheet finishes ask for SR1, so a floor that passed under carpet can fall short as soon as vinyl goes on the drawings.
Our compounds normally go on at 2mm to 10mm, and only a few products are rated for deeper fills. We clean the base, then prime it to suit what lies beneath, because a concrete slab, a cement screed, a calcium sulphate screed and old adhesive residue each take a different primer. Pick the wrong primer and the compound can come away.
Quick drying products keep the refit moving so the flooring fitter can start soon after, and big areas can be split into zones so the business keeps part of the space open. If the old slab is worn or broken, it gets repairs to the concrete or grinding back first, giving the levelling layer a sound surface to grip.
Old floors and new extensions in Gosport houses
In a house, levelling tends to fix one of two things. One is an older floor that has sunk a little or was never flat, and now has LVT or engineered wood planned for it. The other is the doorway where an extension joins the house: floors laid decades apart seldom end up at quite the same height, and a ridge there spoils the new finish. A thin coat of compound can fill the dips and bring both sides level.
Of Gosport's homes, 19% went up between 1973 and 1999. If a floor from that period is still sound but has gained a few dips, compound is often enough before the new finish.
There is only so much compound can do. It finishes a floor; it does not hold one up, and poured thick to hide a floor that ought to be replaced, it can crack and let go. Where the base is hollow, crumbling or damp, as old solid floors without a membrane can be, you need a new screed, possibly with repairs to the screed or a full relay first. For that route, read about relaying in sand and cement.
How we price floor levelling in Gosport
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 Gosport

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 Gosport
As the crow flies, our yard in Slough is about 55 miles from Gosport, which lies to the south-south-west. Postcodes here include PO12 and PO13, and Portsmouth (1.4 miles), Fareham (4.6 miles), Havant (7.4 miles) and Emsworth (8.9 miles) are close by.
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.