Flat RoofingContractors

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Flat roof replacement across Highland

Across Highland, flat roofs come in every age and condition, so we never assume a re-cover is enough. Our surveys check the deck, the falls and the insulation before we recommend a system. Where a replacement is needed, we strip back, rebuild properly and handle building standards where the work requires it.

Flat roof stripped back to joists with firrings and new OSB3 deck boards being laid on a terrace offshootComputer-generated example image
Guide price
£2,650–£4,650
Survey
Free for new and replacement roofs
Quote
Fixed, in writing
Coverage
England, Wales, Scotland, NI

Highland at a glance

Largest towns
Inverness, Fort William, Nairn, Thurso
Postcode areas
IV, KW, PH
Building standards
The Highland Council
Neighbouring areas
Moray · Aberdeenshire · Aberdeen City · Perth and Kinross
Guide price region
Scotland (−5% on West Midlands rates)

How much does a flat roof replacement cost in Highland?

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

JobGuide 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 Highland?

Flat roofs in Highland sit on newer estates where the first extension roofs are now being replaced, lock-up garage blocks on estates and shops with flat-roofed rear stores below flats. 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 Highland the application goes to The Highland 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 Highland do we cover?

Flat roof replacement in Highland: questions

Which towns in Highland do you cover?

All of Highland. 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 Highland?

£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 postcode areas do you cover in Highland?

All of Highland, including the IV, KW, PH postcode areas. Send your full postcode and we'll confirm.

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.

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.

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.

Everything about flat roof replacement → · All flat roofing in Highland →

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