Greenwich at a glance
- Postcode districts
- SE18, SE7, SE28, SE2, SE3, SE9
- Council area
- Royal Borough of Greenwich
- Building approval
- Royal Borough of Greenwich building control, or a registered building control approver
- Guide price region
- London (+20% on West Midlands rates)
What flat roof work do we do in Greenwich?
Balconies and roof terraces
Owners of flats in Greenwich sometimes find that a neighbour's balcony is leaking into their home. Where a balcony serves one flat but sits over another, the repair needs proper waterproofing and drainage, and a clear written specification helps everyone involved agree the work.
Flats, HMOs and block roofs
A block roof in Greenwich is a long-term asset, so we talk about whole-life cost as well as the price today. A longer-life system with corrected falls can mean fewer reactive repairs and fewer rounds of consultation over the years, and the survey explains the options in plain terms.
Dormer roofs
Buyers' surveys in Greenwich often flag dormer roofs, because they are hard to see from the ground and easy to neglect. A recent replacement, with building control sign-off where needed and written guarantees, answers that question before it becomes a problem in the sale.
All flat roof services in Greenwich:
- Warm roof insulation upgrades
- Flat roof replacement
- Single-ply membrane roofing
- Flat roof repairs
- Torch-on felt roofing
- Liquid-applied roofing
- Commercial flat roofing
- Green and sedum roofs
- GRP fibreglass roofing
- Balconies and roof terraces
- EPDM rubber roofing
- Dormer roofs
- Extension and kitchen roofs
- Flats, HMOs and block roofs
- Garage roofs
- Flat roof surveys and leak tracing
- Emergency leak repairs
How much does a flat roof cost in Greenwich?
Guide prices at London 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), torch-on felt | £1,800–£3,150 |
| Extension (20 m²), GRP, new deck + insulation | £3,600–£6,450 |
| Extension (20 m²), felt, new deck + insulation | £3,250–£5,600 |
| Localised patch repair | £180–£600 |
| Upstand or flashing repair | £300–£780 |
What flat roofs are typical in and around Greenwich?
In a town like Greenwich flat roofs are mostly on kitchen extensions and roof terraces behind period houses and mansard and dormer loft conversions. Local weather shapes the specification. The Thames basin is one of the drier parts of Britain at roughly 730 mm of rain a year, but summer heat is the bigger test here: dark membranes on south-facing roofs swing a long way in temperature. Approximate 1991–2020 regional averages based on Met Office data.
Who approves flat roof work in Greenwich?
Where approval is needed it goes to Royal Borough of Greenwich 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 Greenwich do we cover?
- Newham · 3 mi
- Bexley · 4 mi
- Tower Hamlets · 5 mi
- Lewisham · 5 mi
- Barking and Dagenham · 5 mi
- Redbridge · 5 mi
Flat roofing in Greenwich: questions
Do you cover Greenwich?
Yes, including postcode districts SE18, SE7, SE28, SE2, SE3, SE9. Send your postcode with your enquiry and we'll arrange a survey.
How much is a new flat roof in Greenwich?
A typical 18 m² EPDM garage roof is £1,900–£3,350 and a 20 m² insulated EPDM extension roof is £3,350–£5,850, at London guide rates including VAT.
Is a free survey available in Greenwich?
Yes, for new and replacement roofs. A standalone condition survey or leak investigation report is a paid service.
Do you also cover Newham?
Yes. Newham is about 3 miles from Greenwich and we cover it too.