Flat RoofingContractors

Roofs we replace and build

Flat roof replacement in Crewe

For homeowners and landlords in Crewe, replacing a flat roof is a once-in-a-generation job, so the specification matters more than the speed. We set out the full build-up in writing, from deck and vapour control layer to insulation and membrane, and our teams follow it on site. Guide prices are online; the fixed price follows the survey.

Flat roof stripped back to joists with firrings and new OSB3 deck boards being laid on a terrace offshootComputer-generated example image

Crewe at a glance

Postcode districts
CW1, CW2
Population
about 76,437 (GeoNames)
Council area
Cheshire East Council
Building approval
Cheshire East Council building control, or a registered building control approver
Nearest main town
Newcastle-under-Lyme, about 11 miles
Guide price region
North West (−5% on West Midlands rates)

When should a flat roof in Crewe be replaced?

A mineral felt roof laid decades ago may still look intact from the ground in Crewe, yet have lost its chippings, cracked at the laps and pulled away at the upstands. Those faults let water track under the covering, so by the time a ceiling stain appears, the deck has often been wet for some time.

In and around Crewe, flat roofs are typically found on shops with flat-roofed rear stores below flats, and on 1960s and 1970s link-detached houses with flat-roofed garages and porches. The North West is one of England's wetter regions, averaging roughly 1,290 mm of rain a year, so falls, outlets and well-detailed upstands matter more than the membrane colour.

How much does a flat roof replacement cost in Crewe?

At North West guide rates, a 20 m² extension roof in EPDM with a new deck and insulation comes to £2,650–£4,650 including VAT. 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 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.

What's included?

  • New membrane, upstands, edge trims and outlets
  • Fixed written quote listing the full build-up
  • Free survey of the deck, falls, edges and insulation
  • Building control handled where needed, plus a written workmanship guarantee

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?

Flat roof replacement in Crewe: questions

Do you cover Crewe?

Yes. Crewe is part of our Cheshire coverage, including postcode districts CW1, CW2. 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 Crewe?

Where the work needs approval it goes to Cheshire East 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 flat roof replacement cost in Crewe?

£2,650–£4,650 for a 20 m² extension roof in EPDM with a new deck and insulation, at North West guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.

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.

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.

Other flat roof work in Crewe

Flat roof replacement in Crewe: get a fixed price

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

Call usGet a guide price