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Flat roof systems

Torch-on felt roofing in Camden

For blocks of flats, shops and houses in Camden, torch-on felt remains a practical way to re-roof at a sensible cost. Each job follows the same pattern: survey, written quote, strip and lay, then a fire watch and a walk-round with you before we hand over the written workmanship guarantee.

Roofer torching a slate-grey mineral cap sheet on a commercial flat roof behind edge protectionComputer-generated example image

Camden at a glance

Postcode districts
NW1, W1W, W1T, WC1E, WC1H, N1C, WC1B, WC1 and 11 more
Council area
London Borough of Camden
Building approval
London Borough of Camden building control, or a registered building control approver
Guide price region
London (+20% on West Midlands rates)

Why choose torch-on felt roofing in Camden?

Torch-on is a good fit in Camden when the budget matters but quality cannot slip. Modern polyester-reinforced membranes typically last 15 to 25 years, high-performance systems longer, and manufacturer material guarantees are available on many specified systems, registered where the system allows.

In a town like Camden, flat roofs are commonly found on shops with flat-roofed stores below flats above or kitchen extensions and roof terraces behind period houses. The Thames basin is one of the drier parts of Britain at roughly 730 mm of rain a year, but summer heat is the bigger test here: dark membranes on south-facing roofs swing a long way in temperature.

How much does a torch-on felt roof cost in Camden?

For Camden we use London rates: £1,800–£3,150 is the guide for a typical 18 m² garage roof in torch-on felt, VAT included. The fixed price comes after a free survey for new and replacement roofs.

JobGuide price inc VAT
Single garage (18 m²), torch-on felt£1,800–£3,150
Extension (20 m²), felt, new deck + insulation£3,250–£5,600
Block of flats (150 m²), felt + insulation + scaffold£18,650–£32,650
Single garage (18 m²), EPDM rubber£1,900–£3,350
Extension (20 m²), EPDM, new deck + insulation£3,350–£5,850

How long does a torch-on felt roof last, and what is the guarantee?

A modern torch-on roof typically lasts 15 to 25 years, and high-performance systems with better membranes can last longer. That is a big step up from older felt roofs, which were often single-layer, unreinforced or poorly bonded.

What shortens the life of a felt roof is usually visible: mineral chippings worn away so the bitumen is exposed to sunlight, blisters where moisture was trapped, split laps, and upstands that have slumped or pulled away from the wall. Ponding speeds all of this up.

Manufacturer material guarantees are available on many specified torch-on systems; they often depend on a particular build-up and registration, which we handle where the system allows. Every re-roof also comes with our written workmanship guarantee, the length of which is stated in the quote, and insurance-backed options can be discussed. Our flat roof lifespan guide compares felt with the other systems.

What's included?

  • Vapour control layer and warm-roof insulation where needed
  • Hot-works checks and fire watch on every torch-on job
  • Deck inspection with replacement of damaged boards
  • Mineral-finished cap sheet, upstands, outlets and edge trims

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?

Torch-on felt roofing in Camden: questions

Do you cover Camden?

Yes. Camden is part of our London coverage, including postcode districts NW1, W1W, W1T, WC1E, WC1H, N1C and 13 more. 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 Camden?

Where the work needs approval it goes to London Borough of Camden 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 torch-on felt roof cost in Camden?

£1,800–£3,150 for a typical 18 m² garage roof in torch-on felt, at London guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.

Is torch-on suitable for a block of flats?

Yes, layered bitumen systems are widely used on blocks of flats and commercial buildings. Larger roofs often use three layers and insulation, with hot works planned around residents.

How long does it take to lay a torch-on felt roof?

A garage roof typically takes one to two days and an insulated extension two to three. Larger roofs and blocks are phased over longer, with each area made weathertight before the team leaves.

Other flat roof work in Camden

Torch-on felt roofing in Camden: get a fixed price

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

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