Royal Tunbridge Wells at a glance
- Postcode districts
- TN1, TN2, TN3, TN4
- Population
- about 68,910 (GeoNames)
- Council area
- Tunbridge Wells Borough Council
- Building approval
- Tunbridge Wells Borough Council building control, or a registered building control approver
- Nearest main town
- Maidstone, about 14 miles
- Guide price region
- South East (+10% on West Midlands rates)
What makes a good extension roof in Royal Tunbridge Wells?
Rooflights fitted after the roof was built are a frequent source of trouble in Royal Tunbridge Wells extensions. If the kerb was not formed properly or the membrane was simply sealed around the frame, leaks follow. Replacing the roof is the chance to rebuild every upstand to a proper standard.
In a large town like Royal Tunbridge Wells, flat roofs are commonly found on terraced streets with flat-roofed rear kitchens and bathrooms or 1960s and 1970s link-detached houses with flat-roofed garages and porches. 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.
How much does a new extension roof cost in Royal Tunbridge Wells?
For Royal Tunbridge Wells we use South East rates: £3,100–£5,350 is the guide for a 20 m² extension roof in EPDM with a new deck and insulation, VAT included. The fixed price comes after a free survey for new and replacement roofs.
| Job | Guide price inc VAT |
|---|---|
| Extension (20 m²), EPDM, new deck + insulation | £3,100–£5,350 |
| Extension (20 m²), GRP, new deck + insulation | £3,300–£5,900 |
| Extension (20 m²), EPDM, insulation + 1 rooflight upstand | £3,300–£5,750 |
| Single garage (18 m²), EPDM rubber | £1,750–£3,100 |
How long will my kitchen be disrupted by a new roof?
Most single-storey extension roofs are replaced in two to four working days, depending on size, rooflights and weather. The kitchen usually stays in use throughout.
Expect noise during the strip-out, and occasional dust through gaps around old rooflights, so it helps to cover worktops and move anything fragile off high shelves. We strip only what we can make weathertight by the end of each day. If a rooflight or lantern is being lifted and refitted, there may be a temporary cover over the opening for a short time. Resin systems smell while they cure, so keep the windows below the roof closed on that day.
What's included?
- Free survey of the roof, abutment and room below
- New deck, vapour control layer and warm-roof insulation
- Falls set away from the house wall
- New abutment upstand and flashing, plus rebuilt rooflight kerbs
Building regulations in England
Replacing more than half of a flat roof over a heated room usually counts as renovating a thermal element, so the roof is insulated to around 0.16 W/m²K where that's technically and economically feasible, and the work is notified to building control: the council or a registered building control approver, unless a registered competent person self-certifies it. A roof on a new extension is built to 0.15 W/m²K. Patch repairs, and most unheated detached garages, don't trigger the upgrade. Structural changes, or a new covering that adds 15% or more to the roof's weight, also need approval. More on the rules.
Which nearby areas do we also cover?
- Tonbridge · 4 mi
- Crowborough · 7 mi
- Sevenoaks · 10 mi
- East Grinstead · 12 mi
- Uckfield · 13 mi
- Maidstone · 14 mi
Extension and kitchen roofs in Royal Tunbridge Wells: questions
Do you cover Royal Tunbridge Wells?
Yes. Royal Tunbridge Wells is part of our Kent coverage, including postcode districts TN1, TN2, TN3, TN4. Surveys and roofs are carried out by vetted roofing teams working under S&K Property Investments and Improvement Ltd.
Who checks building regulations for a flat roof in Royal Tunbridge Wells?
Where the work needs approval it goes to Tunbridge Wells Borough Council building control, or a registered building control approver. We tell you at the survey whether your job needs it and deal with the paperwork as part of the quote.
How much does a new extension roof cost in Royal Tunbridge Wells?
£3,100–£5,350 for a 20 m² extension roof in EPDM with a new deck and insulation, at South East guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.
Will a new extension roof sit higher than the old one?
Usually, by the thickness of the added insulation. We check the height against the upstairs window sills, door thresholds and wall flashings at survey so everything still works.
Is EPDM or GRP better for a kitchen extension?
Neither is better in every case. EPDM suits simple rectangular roofs with few details, while GRP is often chosen where there are rooflights, corners or occasional foot traffic.