- Guide price
- £2,650–£4,650
- Survey
- Free for new and replacement roofs
- Quote
- Fixed, in writing
- Coverage
- England, Wales, Scotland, NI
East Renfrewshire at a glance
- Largest towns
- Newton Mearns, Barrhead, Giffnock
- Postcode areas
- G
- Building standards
- East Renfrewshire Council
- Neighbouring areas
- Glasgow City · Renfrewshire · East Dunbartonshire · West Dunbartonshire
- Guide price region
- Scotland (−5% on West Midlands rates)
How much does a flat roof replacement cost in East Renfrewshire?
Guide prices including VAT at Scotland rates. 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 | £2,650–£4,650 |
| Single garage (18 m²), torch-on felt | £1,450–£2,500 |
| Extension (20 m²), GRP, new deck + insulation | £2,850–£5,100 |
| Single garage (18 m²), EPDM rubber | £1,500–£2,650 |
Which flat roofs are common in East Renfrewshire?
Flat roofs in East Renfrewshire sit on terraced streets with flat-roofed rear kitchens and bathrooms, newer estates where the first extension roofs are now being replaced and 1960s and 1970s link-detached houses with flat-roofed garages and porches. 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 East Renfrewshire the application goes to East Renfrewshire Council (building standards). More on the rules.
Which system should I replace my flat roof with?
The right system depends on the roof's size, shape, use and number of details, so no single material suits every roof. These are the usual starting points:
- EPDM rubber suits simple, rectangular roofs, where one sheet can often cover the area with few or no joins.
- GRP fibreglass suits roofs with many corners, rooflights or edges, and gives a rigid surface for occasional maintenance traffic.
- Torch-on felt is a layered, hard-wearing system that keeps the cost down on larger or plain roofs.
- Liquid-applied systems handle awkward details and can overlay a sound existing surface.
- Single-ply and mastic asphalt are more usual on commercial roofs, blocks and terraces.
We recommend a system at survey and explain why. Our EPDM vs GRP vs felt guide sets out the trade-offs if you want to compare first.
Which towns in East Renfrewshire do we cover?
Flat roof replacement in East Renfrewshire: questions
Which towns in East Renfrewshire do you cover?
All of East Renfrewshire. 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 flat roof replacement cost in East Renfrewshire?
£2,650–£4,650 for a 20 m² extension roof in EPDM with a new deck and insulation, at Scotland guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.
Which council handles building standards for a flat roof in East Renfrewshire?
It depends on where the roof is: in East Renfrewshire that's East Renfrewshire Council. 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. We confirm which applies at the survey.
Will a new flat roof be better insulated than the old one?
If it is over a heated room, yes. A full replacement usually has to be upgraded towards current insulation levels where feasible, and we build it as a warm roof with the insulation above the deck.
What time of year is best for a flat roof replacement?
Late spring to early autumn gives the most reliable dry spells, but a roof can be replaced in any season when the forecast allows. Adhesives and resins have minimum application temperatures, so winter work is planned around mild, dry days.
Will a replacement make my roof higher?
Usually a little, if insulation is added above the deck. We check door thresholds, window sills, upstands and wall flashings at survey so the new level works.
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