Failsworth at a glance
- Postcode districts
- M35
- Population
- about 20,555 (GeoNames)
- Council area
- Oldham Council
- Building approval
- Oldham Council building control, or a registered building control approver
- Nearest main town
- Oldham, about 3 miles
- Guide price region
- North West (−5% on West Midlands rates)
What does a dormer roof in Failsworth need?
A dormer roof that has been patched several times in Failsworth often has layers of old repairs that hide the real fault. Stripping back to the deck shows what has been going on, and lets the team rebuild the back-edge abutment properly rather than sealing over it again.
In a town like Failsworth, 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. The North West is one of England's wetter regions, averaging roughly 1,290 mm of rain a year, so falls, outlets and well-detailed upstands matter more than the membrane colour.
How much does a new dormer roof cost in Failsworth?
Guide price in Failsworth: £1,350–£2,500 for an 8 m² GRP dormer roof including scaffold, including VAT at North West rates. The fixed price comes after a free survey for new and replacement roofs.
| Job | Guide price inc VAT |
|---|---|
| Dormer (8 m²), GRP, scaffold | £1,350–£2,500 |
| Single garage (18 m²), EPDM rubber | £1,500–£2,650 |
| Extension (20 m²), GRP, new deck + insulation | £2,850–£5,100 |
Is GRP or EPDM better on a dormer roof?
GRP fibreglass is often the first choice on a dormer, because it is laid as a liquid resin over a mat and forms neat, rigid edges, corners and drip details on a small roof. It cures to a hard surface that copes with occasional foot traffic during window cleaning or maintenance.
EPDM rubber works well on a plain rectangular dormer and can usually be laid as one sheet, with no field joins. Unlike GRP, it does not depend on resin curing conditions on the day. Torch-on felt can be used, but working a torch close to timber cladding, fascias and tiles needs extra care, so a cold-applied system is often chosen instead.
We recommend the system after surveying the dormer, its edges and how it meets the main roof.
What's included?
- Scaffold with edge protection, priced in the quote
- New membrane, drip trims and back-edge abutment under the tiles
- Strip-out of the old covering and deck repairs
- Free survey of the dormer roof, cheeks and main roof junction
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?
- Droylsden · 2 mi
- Ashton-under-Lyne · 3 mi
- Oldham · 3 mi
- Manchester · 3 mi
- Middleton · 3 mi
- Longsight · 4 mi
Dormer roofs in Failsworth: questions
Do you cover Failsworth?
Yes. Failsworth is part of our Greater Manchester coverage, including postcode districts M35. 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 Failsworth?
Where the work needs approval it goes to Oldham 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 dormer roof cost in Failsworth?
£1,350–£2,500 for an 8 m² GRP dormer roof including scaffold, at North West guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.
Why does my dormer leak at the back where it meets the roof?
That junction is the most common leak point, usually because the upstand or flashing under the tiles has failed. A proper re-roof rebuilds it.
Can you replace the lead on my dormer at the same time?
Yes, where lead forms part of the dormer abutment or cheek flashings, we include renewing it in the roof job.