Underfloor Heating Screed · Devon
Underfloor Heating Screed — Modbury, Devon
Liquid UFH screed in Modbury replaces the air gaps and voids that bog standard sand-and-cement leaves around pipes, lifting system response and cutting running costs.
Book your Modbury pour
Diary fills two to four weeks ahead. Pin a date now and we'll confirm logistics.
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Liquid UFH screed in Modbury 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 Modbury jobs sit within 30 minutes of base, so site visits stay simple and pour days run to time. Modbury sits Plymouth (12 mi), and we work the surrounding villages on the same week's diary.
Built for Modbury rural self-builders and farms
Modbury sits rural — barn conversions, self-builds, agricultural sheds, equestrian floors. Access is usually fine, but power and water on site need confirming up front. We do that at the site visit.
PL21 access, routes and logistics
County
Devon
District
South Hams
Postcode
PL21
Nearest city
Plymouth (12 mi)
Nearest motorway
M5 (J31, ~37 mi)
Primary A-road
A379
Local industries
independent retail, agriculture
Common builds
Georgian high-street, small new estates
Underfloor Heating Screed in Modbury — how it works
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.
For Modbury UFH builds the typical sequence is: insulation board down, pipes clipped and pressure-tested, edge insulation in place, then we pump and level in a single visit.
Step-by-step for a Modbury job
- 1
UFH installer fits manifold, pipes and pressure-tests to 6 bar
- 2
We confirm edge insulation, DPM and pipe coverage depth
- 3
Pump and level the screed with pipes still under pressure
- 4
Slow commissioning of the heating — usually after 7 days, ramping per manufacturer spec
- 5
Floor coverings once moisture is signed off and commissioning is complete
Recent work near Modbury
Cemfloor systems for Modbury
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.
Modbury-area service radius
FAQs from Modbury clients
When can I switch the underfloor heating on in Modbury?+
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 Modbury 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 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.
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 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.
Do you fit the UFH pipes yourself?+
We work alongside your chosen UFH installer rather than fitting pipes ourselves — most Modbury jobs come with a heating sub-contractor already lined up, and we coordinate dates with them.
Trust points for a Modbury brief
- 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 (J31, ~37 mi) access window and A379 traffic patterns
Book your Modbury 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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