King's Lynn at a glance
- Postcode districts
- PE30
- Population
- about 46,093 (GeoNames)
- Council area
- Borough Council of King's Lynn and West Norfolk
- Building approval
- Borough Council of King's Lynn and West Norfolk building control, or a registered building control approver
- Guide price region
- East of England (+5% on West Midlands rates)
Why choose torch-on felt roofing in King's Lynn?
Torch-on felt is widely specified for blocks of flats and HMOs, in King's Lynn 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.
King's Lynn's flat roofs are mostly on shops with flat-roofed rear stores below flats, with plenty on bungalows with flat-roofed side extensions and dormers too. The East of England is the driest part of Britain, with parts of the Anglian region around 630 mm a year, so summer heat and UV, not rainfall, do most of the ageing on a felt roof.
How much does a torch-on felt roof cost in King's Lynn?
Guide price in King's Lynn: £1,600–£2,750 for a typical 18 m² garage roof in torch-on felt, including VAT at East of England rates. The fixed price comes after a free survey for new and replacement roofs.
| Job | Guide price inc VAT |
|---|---|
| Single garage (18 m²), torch-on felt | £1,600–£2,750 |
| Extension (20 m²), felt, new deck + insulation | £2,850–£4,900 |
| Block of flats (150 m²), felt + insulation + scaffold | £16,350–£28,550 |
| Single garage (18 m²), EPDM rubber | £1,700–£2,950 |
| Extension (20 m²), EPDM, new deck + insulation | £2,950–£5,150 |
Does replacing a felt roof mean upgrading the insulation?
Usually, yes, when the roof is over a heated space and more than half of it is being re-covered. In England, Wales and Northern Ireland that is renovation of a thermal element, which should be brought towards the renovation U-value where feasible; a Scottish project goes through the council's building standards service, which confirms whether a warrant applies.
A felt replacement is a good point to switch to a warm roof, with insulation laid above the deck under the new membranes. On larger roofs, tapered insulation can also correct poor falls that have caused ponding, which a patch repair cannot fix. Raising the roof level affects upstands and door thresholds, so we check heights at survey. Any approval is arranged by us as part of the job, and the building regulations page sets out the rules by nation.
What's included?
- Mineral-finished cap sheet, upstands, outlets and edge trims
- Vapour control layer and warm-roof insulation where needed
- Deck inspection with replacement of damaged boards
- Two- or three-layer reinforced bitumen membrane with staggered laps
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 King's Lynn: questions
Do you cover King's Lynn?
Yes. King's Lynn is part of our Norfolk coverage, including postcode districts PE30. 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 King's Lynn?
Where the work needs approval it goes to Borough Council of King's Lynn and West Norfolk 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 King's Lynn?
£1,600–£2,750 for a typical 18 m² garage roof in torch-on felt, at East of England 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.
Can torch-on felt go over an existing felt roof?
Sometimes, if the old roof is dry, well bonded and the deck is sound. Often stripping is better, because overlaying can trap moisture and hide rot; our guide to overlay or strip explains how we decide.