Penzance at a glance
- Postcode districts
- TR18
- Population
- about 19,872 (GeoNames)
- Council area
- Cornwall Council
- Building approval
- Cornwall Council building control, or a registered building control approver
- Nearest main town
- Redruth, about 16 miles
- Guide price region
- South West (+3% on West Midlands rates)
What flat roof work do we do in Penzance?
Warm roof insulation upgrades
Landlords with flats and HMOs in Penzance sometimes hear from tenants about cold top-floor rooms and black mould on ceilings. A warm roof upgrade during re-roofing tackles both the heat loss and the condensation behind the mould, and helps keep the roof timbers dry.
Flat roof repairs
Older flat roofs in Penzance, 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.
Balconies and roof terraces
Door thresholds are a common reason for balcony work in Penzance. Where a door was fitted with a low step-out and no drainage channel, water driven against the frame finds its way under the sill. Re-waterproofing gives the chance to rebuild that detail properly.
All flat roof services in Penzance:
- EPDM rubber roofing
- Flat roof replacement
- Garage roofs
- Single-ply membrane roofing
- Torch-on felt roofing
- Flats, HMOs and block roofs
- Flat roof surveys and leak tracing
- Balconies and roof terraces
- GRP fibreglass roofing
- Dormer roofs
- Green and sedum roofs
- Liquid-applied roofing
- Extension and kitchen roofs
- Flat roof repairs
- Emergency leak repairs
- Commercial flat roofing
- Warm roof insulation upgrades
How much does a flat roof cost in Penzance?
Guide prices at South West 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 |
|---|---|
| Single garage (18 m²), EPDM rubber | £1,650–£2,900 |
| Porch or bay (4 m²), EPDM | £750–£1,300 |
| Extension (20 m²), felt, new deck + insulation | £2,800–£4,850 |
| Single garage (18 m²), liquid-applied | £2,100–£3,350 |
| Single garage (18 m²), torch-on felt | £1,550–£2,700 |
What flat roofs are typical in and around Penzance?
In a town like Penzance flat roofs are mostly on bungalows with flat-roofed side extensions and dormers and 1930s semis with flat-roofed garages and kitchen extensions. Weather matters on a flat roof. The South West averages roughly 1,260 mm of rain a year and many roofs face wind off the Atlantic, so we specify fixings and edge details for wind uplift as well as drainage. Approximate 1991–2020 regional averages based on Met Office data.
Who approves flat roof work in Penzance?
Where approval is needed it goes to Cornwall Council building control, or a registered building control approver. Replacing more than half of a roof over a heated room usually counts as renovating a thermal element, so it is insulated to current standards and notified to building control. How the rules work.
Which places near Penzance do we cover?
Flat roofing in Penzance: questions
Do you cover Penzance?
Yes, including postcode districts TR18. Send your postcode with your enquiry and we'll arrange a survey.
Is a free survey available in Penzance?
Yes, for new and replacement roofs. A standalone condition survey or leak investigation report is a paid service.
Do you also cover Camborne?
Yes. Camborne is about 12 miles from Penzance and we cover it too.
What's the best flat roof system for a house in Penzance?
For most garages and extensions it's EPDM or GRP; torch-on felt is the budget option and liquid suits detailed or overlay jobs. We recommend one at the survey.