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Flat roof replacement across Argyll and Bute

A flat roof replacement in Argyll and Bute follows the same standard wherever the property is: a sound deck, falls that drain, insulation to current guidance where it applies, upstands at least 150 mm above the finished surface and new edge trims. Guide prices for the area are shown on this page, and the fixed price follows a free survey.

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

Argyll and Bute at a glance

Largest towns
Helensburgh, Dunoon, Oban
Postcode areas
G, PA
Building standards
Argyll and Bute Council
Neighbouring areas
West Dunbartonshire · East Dunbartonshire · Glasgow City · East Renfrewshire
Guide price region
Scotland (−5% on West Midlands rates)

How much does a flat roof replacement cost in Argyll and Bute?

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 Argyll and Bute?

Flat roofs in Argyll and Bute sit on terraced streets with flat-roofed rear kitchens and bathrooms, 1960s and 1970s link-detached houses with flat-roofed garages and porches and newer estates where the first extension roofs are now being replaced. 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 Argyll and Bute the application goes to Argyll and Bute Council (building standards). More on the rules.

How long does it take to replace a flat roof?

A garage or single-storey extension roof is usually stripped and re-covered in one to three working days; larger, higher or more detailed roofs take longer. Weather sets the pace, because the deck must be dry before insulation and membrane go down.

We strip only as much as can be made weathertight that day, so the roof is never left open overnight. Expect noise and some vibration during the strip, a skip on the drive (or on the road with a permit) and ladders or a tower against the house. Rooms below stay usable, though it helps to clear shelves near the ceiling. Resin systems such as GRP smell strongly while they cure, so keep nearby windows closed that day. Two-storey roofs need scaffold, which goes up before we start and comes down after sign-off.

Which towns in Argyll and Bute do we cover?

Flat roof replacement in Argyll and Bute: questions

Which towns in Argyll and Bute do you cover?

All of Argyll and Bute. 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 Argyll and Bute?

£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 Argyll and Bute?

It depends on where the roof is: in Argyll and Bute that's Argyll and Bute 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.

Do I need to be at home while the roof is replaced?

Not for most of the job, as long as the team can reach the roof and there is room for a skip. We ask you to be there at the start to agree the plan and at the end to look over the finished roof.

What guarantees come with a replacement roof?

Every re-roof comes with a written workmanship guarantee, with the length set out in your quote. Manufacturer material guarantees are available on many systems and we register them for you where the system allows; ask about insurance-backed options too.

Is VAT charged on a flat roof replacement?

Yes, roof replacement is standard-rated at 20%, and an insulated replacement is treated as a single supply. Our guide prices already include VAT.

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