Llantrisant at a glance
- Postcode districts
- CF72
- Population
- about 14,422 (GeoNames)
- Council area
- Rhondda Cynon Taf County Borough Council
- Building approval
- Rhondda Cynon Taf County Borough Council building control, or a registered building control approver
- Nearest main town
- Caerphilly, about 7 miles
- Guide price region
- Wales (−8% on West Midlands rates)
What flat roof work do we do in Llantrisant?
Extension and kitchen roofs
Ponding against the house wall is a common reason for replacing an extension roof in Llantrisant. When the deck dips near the wall or the fall runs the wrong way, water sits against the abutment and eventually gets in. A new roof with corrected falls moves the water to the gutter.
Torch-on felt roofing
For a commercial roof in Llantrisant, such as a shop, surgery or club, torch-on felt offers a hard-wearing mineral finish that takes occasional maintenance traffic. Phased work keeps part of the building weathertight while the rest is re-roofed, so the business can usually keep trading.
Flat roof repairs
Older flat roofs in Llantrisant, as elsewhere, are often covered in felt that has lost its chippings and dried out. One leak on a roof like that is a warning sign. We repair it, check the rest of the covering and tell you honestly whether replacement belongs in next year's budget.
All flat roof services in Llantrisant:
- GRP fibreglass roofing
- Balconies and roof terraces
- Commercial flat roofing
- Extension and kitchen roofs
- Single-ply membrane roofing
- Flat roof surveys and leak tracing
- Dormer roofs
- Flat roof replacement
- Emergency leak repairs
- Flats, HMOs and block roofs
- Green and sedum roofs
- Liquid-applied roofing
- EPDM rubber roofing
- Warm roof insulation upgrades
- Garage roofs
- Torch-on felt roofing
- Flat roof repairs
How much does a flat roof cost in Llantrisant?
Guide prices at Wales rates including VAT. New and replacement roofs get a fixed price after a free survey; repair prices are confirmed once we've found the problem.
| Job | Guide price inc VAT |
|---|---|
| Upstand or flashing repair | £230–£600 |
| Commercial roof (100 m²), single-ply + insulation | £12,150–£20,050 |
| Condition survey and leak investigation | £140–£280 |
| Balcony (12 m²), liquid-applied, scaffold | £1,750–£3,000 |
| Extension (20 m²), EPDM, insulation + 1 rooflight upstand | £2,750–£4,800 |
What flat roofs are typical in and around Llantrisant?
In a town like Llantrisant flat roofs are mostly on 1960s and 1970s link-detached houses with flat-roofed garages and porches and 1930s semis with flat-roofed garages and kitchen extensions. Local weather shapes the specification. Wales averages roughly 1,460 mm of rain a year, among the wettest in Britain, so we design for steady run-off: proper falls, clear outlets and upstands well above the finished roof. Approximate 1991–2020 regional averages based on Met Office data.
Who approves flat roof work in Llantrisant?
Where approval is needed it goes to Rhondda Cynon Taf County Borough Council building control, or a registered building control approver. Welsh guidance is that most re-roofing needs building control approval, so it's worth checking whenever more than a quarter of a roof is replaced or repaired. How the rules work.
Which places near Llantrisant do we cover?
Flat roofing in Llantrisant: questions
Do you cover Llantrisant?
Yes, including postcode districts CF72. Send your postcode with your enquiry and we'll arrange a survey.
Do you also cover Tonyrefail?
Yes. Tonyrefail is about 4 miles from Llantrisant and we cover it too.
Can you repair a leaking flat roof in Llantrisant?
Yes. We trace where the water is actually getting in first, because the leak inside is rarely under the defect outside, then repair with materials compatible with your roof.
Do flat roofs in Llantrisant need building control approval?
Usually. Welsh Government guidance is that most re-roofing needs building control approval, so check whenever more than a quarter of the roof is being replaced or repaired. In Llantrisant that's Rhondda Cynon Taf County Borough Council building control, or a registered building control approver. We tell you at the survey and handle it.
