Do Plasterers Do Floor Screeding? Understanding Who Does What on Your Build
Wondering if your plasterer can screed your floor? We explain who does what, why it matters, and how to get the right specialist in Somerset and Dorset.
A plasterer and a screeder are not the same trade
A lot of homeowners assume that because plastering and screeding both involve mixing and applying a cementitious material, the same person can do both jobs. It is a fair assumption. But in practice, plastering and floor screeding are distinct skills, and most plasterers do not offer screeding as part of their service.
Plastering is about applying thin coats to walls and ceilings. Screeding is about laying a precise, level bed across a floor, often to very tight tolerances, especially when underfloor heating pipes are sitting underneath. The tools, the mix, the technique and the finishing process are all different. A plasterer who occasionally does a bit of floor screed is not the same as a dedicated screed contractor who does it every day.
If you are planning an extension, renovation or new build in Somerset or Dorset, getting the right trade in for the floor is worth thinking about early. The wrong choice here can cause problems that are expensive to put right later.
Why the confusion exists
Part of it comes down to how trades are described online and in directories. Search for "plasterer" in Taunton or Bridgwater and you will find plenty of people who list screeding under their services. Some of them do it well. Others treat it as a secondary skill, something they can turn their hand to if asked.
The issue is not that plasterers are bad tradespeople. It is that liquid floor screeding in particular requires a specialist approach. Liquid screed (also called flowing screed or anhydrite screed) is a pumpable material that is delivered to site by a specialist vehicle and pumped into the room. It self-levels to a flat finish. It is not something a plasterer mixes in a bucket and trowels out by hand.
Traditional sand and cement screed can be mixed and laid by a skilled plasterer or builder, but it requires experience to get a truly flat, consistent result. On larger floors, or on floors with underfloor heating, the margin for error is small.
What a specialist screed contractor actually does
When you book a liquid screed specialist like us, here is what the process typically involves.
First, the floor needs to be prepared. That means insulation boards laid to the correct specification, a damp-proof membrane, and perimeter edge strip fitted around the walls. We can handle all of that preparation work ourselves if needed, so you are not trying to co-ordinate three different trades just to get the floor ready.
If you have underfloor heating, your heating installer lays and pressure-tests the pipework before we arrive. Once that is done and the floor is ready, we pump the liquid screed in. It flows around the pipes and self-levels across the room. There is no hand-finishing in the traditional sense because the material does the levelling work.
After the pour, the screed needs to be left to dry and cure properly before any floor finish goes down. Getting that timing right matters, particularly if you are tiling or laying a wood floor. We cover this in more detail in our article on how long until you can lay tiles after floor screeding.
Why it matters for extensions and renovations in Somerset and Dorset
If you are building an extension in Yeovil or renovating a ground floor in Weston-super-Mare, the screed sits right at the heart of your build programme. Get it wrong and everything downstream is delayed. Get it right and you move cleanly from the structural work into first fix, then second fix, then finishes.
Liquid screed is particularly well suited to extensions and open-plan renovations because it covers large areas quickly and produces a flat, consistent finish. It works well over underfloor heating, which is increasingly standard in new extensions across Somerset. It also works well in older properties where the subfloor is uneven, because the self-levelling nature of the material compensates for minor variation in the base.
For builders and developers working across Somerset and Dorset, having a reliable screed contractor on the programme means one less thing to worry about. We work with individual homeowners and with building contractors. Both get the same approach: turn up when we say we will, do the job properly, leave the site tidy.
Josh, one of our customers, put it simply:
"Really happy with the work. The finish was spot on and you can tell a lot of care and attention went into getting everything right. Turned up when he said he would, worked hard and left everything tidy afterwards. Would definitely recommend to anyone looking for a reliable and professional screeding service."
That is what we aim for on every job, whether it is a single-room renovation in Bridgwater or a multi-room new build across Dorset.
What to check before you book anyone for floor screeding
Whether you end up booking us or someone else, here are the questions worth asking before you commit.
Do they specialise in floor screeding, or is it one of many services they offer? A specialist will understand the process, the drying requirements and how screeding fits into your wider build. A generalist may not.
Can they handle the floor preparation as well as the pour? If you need insulation, membrane and edge strip laid before the screed goes in, it is easier if one contractor handles it all. Fewer handoffs, fewer gaps.
Have they worked with underfloor heating before? Screeding over underfloor heating pipes requires care. The pipes need to be pressurised during the pour so they do not float or move. An experienced screed contractor will know this and will work with your heating installer to make sure it happens correctly.
How do they handle the drying and curing period? Liquid screed needs ventilation and time. Your contractor should be able to tell you what to expect and what not to do during that period.
Do they quote each job individually? Every floor is different. A contractor who gives you a price without understanding your floor area, the depth required, the access conditions and the preparation needed is guessing. We always quote based on the specifics of your job.
If you are preparing your floor for the pour, our Somerset checklist for getting a floor ready for liquid screed walks through what needs to be in place before we arrive.
So, should you ask your plasterer?
If your plasterer also has genuine experience in liquid floor screeding and does it regularly, then possibly yes. Ask them directly how often they do it, what method they use and whether they pump liquid screed or lay sand and cement by hand. Their answer will tell you a lot.
But if you are laying a large floor, working over underfloor heating, building an extension or a new build, or simply want to be sure the floor is right first time, then booking a dedicated screed contractor is the safer call. It is a specialist job and it deserves a specialist.
We cover Somerset, Dorset and the surrounding areas, including Bridgwater, Taunton, Yeovil and Weston-super-Mare. We work on domestic floors, new builds and commercial projects. If you are not sure whether your project needs liquid screed or you want to understand what the process involves, our article on whether screeding is a big job is a good place to start.
Frequently asked questions
Do plasterers do floor screeding? Some plasterers do offer screeding as a secondary service, particularly traditional sand and cement screed applied by hand. But liquid floor screeding is a specialist trade that requires dedicated equipment, including a pump and delivery vehicle, as well as specific knowledge of drying, curing and working over underfloor heating. Most plasterers do not offer it, and it is worth booking a specialist contractor if you want a guaranteed result.
How is floor screeding applied? Liquid screed is delivered to site in a mixer lorry and pumped into the room through a hose. It flows across the floor and self-levels, filling around underfloor heating pipes and reaching into corners. Once poured, it is lightly de-aerated with a gauge rake and then left to cure. Traditional sand and cement screed is mixed on site and laid by hand, then compacted and levelled with a straight edge.
Why do plasterers not plaster right down to the floor level? Plasterers typically stop their finish coat above floor level deliberately. The floor screed is laid separately and usually after the plastering is done, so the exact finished floor height is not always fixed when the plasterer is working. Leaving a gap also avoids the plaster being damaged during the screed pour or the subsequent drying period. The two trades work in a sequence, not simultaneously.
Is floor screed waterproof? Standard liquid screed is not waterproof. It is a floor levelling and structural bed, not a tanking or waterproofing layer. If you are screeding a wet room, bathroom or any area where water ingress is a concern, a separate waterproofing system needs to be applied over the screed before the tiles or other floor finish goes down. Your tiler or waterproofing contractor would handle that stage.
Ready to find out what your project needs? Get in touch with us with your floor area and location and we will put together a free quotation.
