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Underfloor Heating Screed · Cambridgeshire

Screed for Underfloor Heating in Ely

Ely's heated floors get a liquid or hand-laid sand and cement screed from us, with proper depth over the pipes and the warm-up written down step by step. Much of Ely is new, and the estates built in large numbers in the 2000s and since are where underfloor heating screeds come up most, along with snagging on developer floors. We screed over pipes laid by your heating engineer; we do not install them.

Heated screeds on Ely's post-2000 estates

Homes built between 2000 and 2014 make up 28% of Ely, and a further 10% have gone up since 2015. Houses of this age are the likeliest candidates for a heated screed, and the homes planned at Orchards Green will add more. Heated floors are also an option when an older Ely home gains a kitchen extension or garden room.

Whichever screed is used, the numbers over the pipes matter. Pumped screed wants 25mm or more over the pipes, normally finishing 45 to 50mm deep overall. It flows around every pipe with no air pockets, heats up quickly and spreads warmth evenly. Hand-laid sand and cement takes around 45mm over the pipes and has to be packed in tightly around them so no voids are left.

On a new-build plot the sequence runs: insulation and edge strip, pipes fixed by the heating engineer, a pressure test, then the pour. Insulation, membrane and edge strip are all looked over before pouring, and anything missing can come from us.

Snagging is a separate issue. Developer floors on newer estates sometimes need repair after handover, such as cracked or hollow patches, and those are covered on our screed repairs page. For the thickness figures in more depth, see the guide to screed thickness. Once dry, a heated screed laid at the right depth is flat enough for tiles, LVT and engineered wood.

First heat-up for an Ely underfloor heating floor

Screed and heating are brought together slowly. On calcium sulphate, heat can go on from about 7 days. With sand and cement it is 21 days before any heat. Commissioning then starts at a low water temperature, rises in small daily steps, holds, and is brought back down before flooring. We hand over this schedule in writing.

Retrofitting heat into an older Ely house is a height problem. A floor near the cathedral or Waterside may have no membrane and limited depth before it meets thresholds and skirting, and listed status can rule out digging down. Pumped screed needs a thinner layer over the pipes than a hand-laid mix, which helps, though the insulation underneath still takes up room. So the old floor gets looked at first, and only then do we say what will fit.

In 1970s to 1990s detached homes being extended, the heated extension floor has to match the old floor's level exactly. Planning the slab height with the builder before it is cast avoids a step later. For large open heated rooms, pumped liquid screed is the usual partner. For a heated floor south of Ely, see underfloor heating screed in Cambridge.

Underfloor Heating Screed prices in Ely

Liquid screed over underfloor heating: £20 to £35 per m² supplied and laid (trade2base, June 2026), so £700 to £1,230 for 35 m². trade2base gives these figures excluding VAT. See our floor screeding cost guide or screed calculator.

Who lays your underfloor heating screed in Ely

Underfloor heating pipework laid through a doorway before the screed goes down
Underfloor heating pipework laid through a doorway before the screed goes down.

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.

Underfloor Heating Screed from Slough to Ely

As the crow flies, our yard in Slough is about 71.4 miles from Ely, which lies to the north-north-east. Postcodes here include CB7, and Soham (5.7 miles), Chatteris (9.9 miles), Newmarket (12.4 miles) and March (12.6 miles) are close by.

More on underfloor heating screed, part of our screeding services.

FAQs

Underfloor Heating Screed in Ely: your questions

How much cover does screed need over underfloor heating pipes?

At least 25mm for a liquid screed, which usually makes the total depth 45 to 50mm, and about 45mm for sand and cement. Skimp on it and the screed can crack along the pipes and heat unevenly. On an Ely new build these depths are fixed at the design stage; on an extension, we confirm them with your builder before the slab height is set.

Can a cracked developer floor over underfloor heating be repaired?

Usually. Fine cracks in a sound screed can be repaired and the surface levelled, while hollow or crumbling areas are cut out and relaid around the pipes with care. The heating is turned off first. On newer Ely estates it is worth checking whether the developer's warranty applies before arranging private repairs.

Can I turn my underfloor heating on to dry the screed faster?

With calcium sulphate screed, usually from about 7 days, following a gradual heat-up, which can help an Ely new build keep to its programme. Hold off at least 21 days with sand and cement before heat goes in. Turning the system straight to full temperature risks cracking, so always follow the written commissioning schedule.

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