Flat RoofingContractors

Roofs we replace and build

Dormer roofs across Scottish Borders

Dormer roofs across Scottish Borders are usually small but awkward: high up, over a bedroom and tied into a tiled roof. We plan the scaffold, insulation thickness and back-edge detail at survey, then lay GRP or EPDM with new trims. Building standards are handled where the work needs them.

Rear box dormer with a grey GRP flat roof and anthracite cladding on a Victorian terraceComputer-generated example image
Guide price
£1,350–£2,500
Survey
Free for new and replacement roofs
Quote
Fixed, in writing
Coverage
England, Wales, Scotland, NI

Scottish Borders at a glance

Largest towns
Hawick, Galashiels, Peebles
Postcode areas
EH, TD
Building standards
Scottish Borders Council
Neighbouring areas
Midlothian · East Lothian · City of Edinburgh · West Lothian
Guide price region
Scotland (−5% on West Midlands rates)

How much does a new dormer roof cost in Scottish Borders?

Guide prices including VAT at Scotland rates. The fixed price comes after a free survey for new and replacement roofs.

JobGuide 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

Which flat roofs are common in Scottish Borders?

Flat roofs in Scottish Borders sit on low-rise post-war blocks of flats, terraced streets with flat-roofed rear kitchens and bathrooms and 1930s semis with flat-roofed garages and kitchen extensions. Scotland averages roughly 1,570 mm of rain a year, with the west far wetter than the east, so drainage, falls and wind uplift are part of every specification we write. Approximate 1991–2020 regional averages based on Met Office data.

Building standards in Scotland

In Scotland a building warrant is usually needed for alterations, structural work and new roofs; like-for-like repairs to a covering can be exempt. Section 6 of the technical handbooks sets a domestic roof benchmark of 0.12 W/m²K, applied as far as reasonably practicable on an existing roof. In Scottish Borders the application goes to Scottish Borders Council (building standards). More on the rules.

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.

Which towns in Scottish Borders do we cover?

Dormer roofs in Scottish Borders: questions

Which towns in Scottish Borders do you cover?

All of Scottish Borders. The main towns have their own pages below, and if yours isn't listed we still cover it: send your postcode and we'll confirm.

How much does a new dormer roof cost in Scottish Borders?

£1,350–£2,500 for an 8 m² GRP dormer roof including scaffold, at Scotland guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.

Which postcode areas do you cover in Scottish Borders?

All of Scottish Borders, including the EH, TD postcode areas. Send your full postcode and we'll confirm.

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.

Does the room below need emptying?

No, but moving furniture away from the window and covering the floor is sensible. The room stays usable throughout.

Can a dormer roof be replaced without scaffold?

Rarely. A tower or full scaffold is usually needed to give a safe working platform and edge protection at that height.

Everything about dormer roofs → · All flat roofing in Scottish Borders →

Get a fixed price for your flat roof

Free survey and a written fixed quote for replacement and new roofs. No obligation.

Call usGet a guide price