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Flat roof systems

Torch-on felt roofing in Kingswood

For blocks of flats, shops and houses in Kingswood, 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

Kingswood at a glance

Postcode districts
BS15, BS16
Population
about 40,734 (GeoNames)
Council area
South Gloucestershire Council
Building approval
South Gloucestershire Council building control, or a registered building control approver
Nearest main town
Bristol, about 4 miles
Guide price region
South West (+3% on West Midlands rates)

Why choose torch-on felt roofing in Kingswood?

Torch-on felt is widely specified for blocks of flats and HMOs, in Kingswood as elsewhere, because the system is well understood, widely repairable and governed by a British Standard code of practice. Three-layer builds with insulation are common on larger, multi-occupied roofs.

Kingswood's flat roofs are mostly on shops with flat-roofed rear stores below flats, with plenty on terraced streets with flat-roofed rear kitchens and bathrooms too. The South West averages roughly 1,260 mm of rain a year and many roofs face wind off the Atlantic, so we specify fixings and edge details for wind uplift as well as drainage.

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

For Kingswood we use South West rates: £1,550–£2,700 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£1,550–£2,700
Extension (20 m²), felt, new deck + insulation£2,800–£4,850
Block of flats (150 m²), felt + insulation + scaffold£16,000–£28,000
Single garage (18 m²), EPDM rubber£1,650–£2,900
Extension (20 m²), EPDM, new deck + insulation£2,900–£5,050

Should I choose torch-on felt or a different flat roof system?

Choose torch-on felt when you want a proven, layered system at a sensible price, particularly on larger roofs, blocks of flats and commercial buildings where several layers give useful redundancy. It is a weaker choice where hot works are hard to manage safely.

For: generally lower cost per square metre; two or three layers, so a single defect in one layer need not cause a leak; tough mineral finish; long track record and a British Standard code of practice; repairs can be made with compatible materials.

Against: needs a naked flame unless a cold-applied or self-adhesive alternative is used; shorter typical life than EPDM or GRP; the finish is functional rather than decorative; more laps to detail than a single sheet.

On small domestic roofs near timber, EPDM avoids the torch entirely. GRP gives a harder, neater surface. For an overlay, a liquid-applied system is often simpler. Large commercial roofs may suit single-ply, and older buildings may suit mastic asphalt. See our comparison guide.

What's included?

  • Two- or three-layer reinforced bitumen membrane with staggered laps
  • Strip-off of the existing roof covering and removal of waste
  • Mineral-finished cap sheet, upstands, outlets and edge trims
  • Vapour control layer and warm-roof insulation where needed

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 Kingswood: questions

Do you cover Kingswood?

Yes. Kingswood is part of our Gloucestershire coverage, including postcode districts BS15, BS16. 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 Kingswood?

Where the work needs approval it goes to South Gloucestershire Council 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 Kingswood?

£1,550–£2,700 for a typical 18 m² garage roof in torch-on felt, at South West guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.

Is torch-on felt better than the old felt roofs?

Yes, considerably. Modern torch-on membranes are polymer-modified and polyester-reinforced, laid in bonded layers, and typically last much longer than the older felt systems they replace.

Can I paint or coat an old felt roof?

Reflective or liquid coatings can extend the life of a sound felt roof, but they will not fix wet insulation, a rotten deck or poor falls. A survey shows whether coating or replacement makes more sense.

Other flat roof work in Kingswood

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

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

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