Dartford at a glance
- Postcode districts
- DA1
- Population
- about 51,240 (GeoNames)
- Council area
- Dartford Borough Council
- Building approval
- Dartford Borough Council building control, or a registered building control approver
- Nearest main town
- Grays, about 5 miles
- Guide price region
- South East (+10% on West Midlands rates)
What flat roof work do we do in Dartford?
Green and sedum roofs
Garden rooms and outbuildings in Dartford, as elsewhere, often have small flat roofs that are seen from the house and garden. A sedum finish helps them blend in, provided the structure is strong enough and the roof underneath is built properly.
GRP fibreglass roofing
If a flat roof in Dartford has already been patched with fibreglass that keeps cracking, a full GRP replacement on a new, properly fixed deck often solves the problem. Cracks usually come from movement in the boards beneath, so renewing the deck and reinforcing the joints deals with the cause.
Garage roofs
Garage roofs in Dartford are often replaced when the deck gives way. Chipboard decks swell and soften once they get wet, and you may see sagging between joists or feel the roof flex underfoot. Replacing the deck and covering together is usually more economical than repeated repairs.
All flat roof services in Dartford:
- EPDM rubber roofing
- Extension and kitchen roofs
- Balconies and roof terraces
- GRP fibreglass roofing
- Commercial flat roofing
- Garage roofs
- Liquid-applied roofing
- Flat roof surveys and leak tracing
- Flat roof replacement
- Single-ply membrane roofing
- Dormer roofs
- Torch-on felt roofing
- Warm roof insulation upgrades
- Flat roof repairs
- Green and sedum roofs
- Emergency leak repairs
- Flats, HMOs and block roofs
How much does a flat roof cost in Dartford?
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 |
| Balcony (12 m²), liquid-applied, scaffold | £2,100–£3,600 |
| Upstand or flashing repair | £280–£720 |
| Extension (20 m²), felt, new deck + insulation | £3,000–£5,150 |
| Condition survey and leak investigation | £170–£330 |
What flat roofs are typical in and around Dartford?
In a large town like Dartford flat roofs are mostly on shops with flat-roofed rear stores below flats and low-rise post-war blocks of flats. 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 Dartford?
Where approval is needed it goes to Dartford 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 Dartford do we cover?
Flat roofing in Dartford: questions
Do you cover Dartford?
Yes, including postcode districts DA1. Send your postcode with your enquiry and we'll arrange a survey.
How much is a new flat roof in Dartford?
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.
Can you repair a leaking flat roof in Dartford?
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.
Is a free survey available in Dartford?
Yes, for new and replacement roofs. A standalone condition survey or leak investigation report is a paid service.