Underfloor Heating Screed · Somerset
Cemfloor-Certified Underfloor Heating Screed Across Mark
Liquid UFH screed in Mark replaces the air gaps and voids that bog standard sand-and-cement leaves around pipes, lifting system response and cutting running costs.
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Liquid UFH screed in Mark replaces the air gaps and voids that bog standard sand-and-cement leaves around pipes, lifting system response and cutting running costs.
We pour Cemfloor Therm liquid screed over your UFH pipes at 50mm above pipe (typically 65-75mm total over insulation), giving full pipe encapsulation, fast thermal response and a finished surface flat to SR1.
Most of our Mark jobs sit within 30 minutes of base, so site visits stay simple and pour days run to time. Mark sits Bridgwater (10 mi), and we work the surrounding villages on the same week's diary.
Why Mark site context matters
County
Somerset
District
Sedgemoor
Postcode
TA9
Nearest city
Bridgwater (10 mi)
Nearest motorway
M5 (J22, ~6 mi)
Primary A-road
B3139
Local industries
Levels agriculture, rural haulage
Common builds
Levels farmhouses, raised new-builds
Mark projects we see most
- Levels farmhouses — a regular brief in Mark
- Raised new-builds — a regular brief in Mark
- Converted longhouses — a regular brief in Mark
- Packhouse retrofits — a regular brief in Mark
- Levels agriculture — a regular brief in Mark
Underfloor Heating Screed in Mark — how it works
We pour Cemfloor Therm liquid screed over your UFH pipes at 50mm above pipe (typically 65-75mm total over insulation), giving full pipe encapsulation, fast thermal response and a finished surface flat to SR1.
The screed self-levels around every loop, eliminating the voids you get under hand-laid traditional screed. That means the floor responds faster when the heating calls for it, and stores less wasted heat.
Specifications suited to Mark builds
Cemfloor Therm
Liquid screed engineered for UFH — lambda 2.1 W/mK, fast response.
PIR/Phenolic insulation board
70-150mm typical depending on build regs U-value target.
Edge insulation strip
Critical around UFH zones to allow thermal expansion.
Pressure-testing kit
Pipes held at 6 bar through the pour to flag any damage immediately.
Latest jobs across Somerset
Nearby villages and towns
What backs our Mark work
- 01Cemfloor-certified, fully insured, CDM-aware
- 02Coordinated with most South West UFH installers
- 03Pre-start meeting standard on every commercial job
- 04Local knowledge — we know the M5 (J22, ~6 mi) access window and B3139 traffic patterns
Mark screed questions, answered
How does this affect my floor coverings in Mark?+
Once commissioned and the floor moisture content is signed off (CM test, typically below 0.5% for tile), most coverings go down as normal. We hand you a commissioning record.
Will the screed crack as the UFH heats up?+
Properly isolated at the edges and at doorway joints, no. We pour with the pipes pressure-tested and follow a controlled commissioning schedule.
What depth of screed over UFH pipes do you recommend?+
Minimum 50mm cover above the highest pipe — usually a 65-75mm total slab over insulation. Thicker if you want more thermal mass.
When can I switch the underfloor heating on in Mark?+
On Cemfloor Therm we typically start a slow commissioning cycle from day 7, ramping 5°C per day per manufacturer spec. Forcing it earlier risks cracking, so we hold Mark clients to the schedule.
Does liquid UFH screed improve EPC ratings?+
Indirectly — yes. Faster response and lower running temperatures help heat-pump COP, which feeds into your SAP/EPC. We'll share the manufacturer data your assessor needs.
What if a pipe leaks during the pour?+
Pipes are held at 6 bar through the pour. Any pressure drop is flagged immediately and we stop, fix and continue — this is exactly why we keep the manifold under test.
Pin down a date for your Mark pour, and we'll handle the rest — pump, mix, lay, level, protect, hand over.
Book your Mark pour
Diary fills two to four weeks ahead. Pin a date now and we'll confirm logistics.
Ready to get a price?
Tell us the rough size and location — we'll come back with a fixed quote today.
Or call our landline on 01392 237700
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