Cobham at a glance
- Postcode districts
- KT11
- Population
- about 16,724 (GeoNames)
- Council area
- Elmbridge Borough Council
- Building approval
- Elmbridge Borough Council building control, or a registered building control approver
- Nearest main town
- Woking, about 6 miles
- Guide price region
- South East (+10% on West Midlands rates)
What flat roof work do we do in Cobham?
Warm roof insulation upgrades
Many flat-roofed extensions and dormers in Cobham were built with little or no insulation, or with a cold roof that was never properly ventilated. Those rooms are often hard to heat in winter and can suffer condensation, mould and, in time, a rotten deck.
Flats, HMOs and block roofs
Roof works on a block in Cobham affect many households at once. We agree notices, scaffold positions, working hours and a named contact with the agent or freeholder before we start, so residents know what is happening, when it will happen and who to ask if they have a question.
Flat roof surveys and leak tracing
Businesses in Cobham with a flat-roofed building can't plan maintenance around guesswork. A survey sets out what needs doing now, what can wait and roughly what each item will cost, so the work can be scheduled with as little disruption as possible.
All flat roof services in Cobham:
- Flat roof surveys and leak tracing
- Extension and kitchen roofs
- Garage roofs
- Torch-on felt roofing
- Liquid-applied roofing
- Flats, HMOs and block roofs
- Flat roof replacement
- Dormer roofs
- Single-ply membrane roofing
- Green and sedum roofs
- GRP fibreglass roofing
- Commercial flat roofing
- EPDM rubber roofing
- Flat roof repairs
- Warm roof insulation upgrades
- Emergency leak repairs
- Balconies and roof terraces
How much does a flat roof cost in Cobham?
Guide prices at South East 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 |
|---|---|
| Localised patch repair | £170–£550 |
| Extension (20 m²), EPDM, new deck + insulation | £3,100–£5,350 |
| Commercial roof (100 m²), single-ply + insulation | £14,550–£23,950 |
| Single garage (18 m²), liquid-applied | £2,250–£3,600 |
| Porch or bay (4 m²), EPDM | £850–£1,400 |
What flat roofs are typical in and around Cobham?
In a town like Cobham flat roofs are mostly on 1960s and 1970s link-detached houses with flat-roofed garages and porches and terraced streets with flat-roofed rear kitchens and bathrooms. Rain and wind decide how a flat roof is detailed. Much of the South East sits in the drier Thames catchment at roughly 730 mm of rain a year, so the usual failures are at joints, upstands and outlets rather than from sheer volume of rain. Approximate 1991–2020 regional averages based on Met Office data.
Who approves flat roof work in Cobham?
Where approval is needed it goes to Elmbridge Borough 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 Cobham do we cover?
- Esher · 3 mi
- Weybridge · 4 mi
- Leatherhead · 4 mi
- West Molesey · 5 mi
- Sunbury-on-Thames · 5 mi
- Chertsey · 6 mi
Flat roofing in Cobham: questions
Do you cover Cobham?
Yes, including postcode districts KT11. Send your postcode with your enquiry and we'll arrange a survey.
How much is a new flat roof in Cobham?
A typical 18 m² EPDM garage roof is £1,750–£3,100 and a 20 m² insulated EPDM extension roof is £3,100–£5,350, at South East guide rates including VAT.
Is a free survey available in Cobham?
Yes, for new and replacement roofs. A standalone condition survey or leak investigation report is a paid service.
What's the best flat roof system for a house in Cobham?
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.