Flat RoofingContractors

England

Flat roofing contractors in Cambridgeshire

Guide prices for a typical extension roof replacement in Cambridgeshire are shown on this page, including versions with a rooflight upstand or a sedum finish. Your fixed price depends on size, deck condition, insulation, rooflights and access, and it comes in writing after a free, no-obligation survey of the roof and the room below. Need a fibreglass roof somewhere in Cambridgeshire? Start with the guide-price tool for a quick figure, then book a free survey. We check the structure, measure the roof, look at falls and upstands, and return a fixed price in writing. Each re-roof comes with a written workmanship guarantee, and the quote states how long it runs.

Row of brick lock-up garages with new charcoal flat roofs and black edge trimsComputer-generated example image

Cambridgeshire at a glance

Largest towns
Peterborough, Cambridge, Wisbech, St Neots
Postcode areas
CB, PE
Building control
Peterborough City Council, Cambridge City Council, Fenland District Council and 2 other councils
Neighbouring areas
Northamptonshire · Bedfordshire · Hertfordshire · Suffolk
Guide price region
East of England (+5% on West Midlands rates)

Which towns in Cambridgeshire do we cover?

8 towns and cities have their own page; we cover everywhere in between too.

What does a flat roof cost in Cambridgeshire?

Guide prices at East of England rates, including VAT. The fixed price comes after a survey.

JobGuide price inc VAT
Emergency temporary weatherproofing visit£190–£470
Extension (20 m²), EPDM, new deck + insulation£2,950–£5,150
Commercial roof (100 m²), single-ply + insulation£13,900–£22,850
Dormer (8 m²), GRP, scaffold£1,450–£2,800
Extension (20 m²), felt, new deck + insulation£2,850–£4,900
Balcony (12 m²), liquid-applied, scaffold£2,000–£3,400

Which flat roofs are common in Cambridgeshire?

The climate is part of the brief. 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. Across Cambridgeshire, flat roofs are typically found on shops with flat-roofed rear stores below flats, low-rise post-war blocks of flats and bungalows with flat-roofed side extensions and dormers. Approximate 1991–2020 regional averages based on Met Office data.

Which flat roof jobs do we take on in Cambridgeshire?

GRP fibreglass roofing

For a garage or extension in Cambridgeshire that doubles as a step-out space for window cleaning, GRP gives a firmer footing than a rubber membrane. With an anti-slip topcoat it handles light, occasional use, though a full terrace needs its own specification and, in many cases, planning permission.

Flat roof repairs

Flat roofs in Cambridgeshire face the same enemies as anywhere else: rain driven against walls, leaves blocking outlets, sun drying out older felt and frost opening small cracks. People tend to notice when a stain appears on a ceiling after a storm, or when water is still sitting on the roof days after rain.

Garage roofs

Garage roofs in Cambridgeshire are often replaced when the deck gives way. Chipboard decks swell and soften once they get wet, and you may see sagging between joists or feel the roof flex underfoot. Replacing the deck and covering together is usually more economical than repeated repairs.

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 services do we offer in Cambridgeshire?

Flat roofing in Cambridgeshire: questions

Who approves flat roof work in Cambridgeshire?

Replacing more than half of a roof over a heated room usually counts as renovating a thermal element, so it is insulated to current standards and notified to building control. We check this at the survey and handle the application as part of the job.

Which roofing systems do you fit in Cambridgeshire?

EPDM rubber, GRP fibreglass, torch-on felt, liquid-applied and single-ply, plus mastic asphalt repairs. The survey decides which suits your roof.

Do you work on commercial roofs in Cambridgeshire?

Yes: shops, offices, units and blocks of flats across Cambridgeshire, with work planned around opening hours and residents.

Which postcode areas do you cover in Cambridgeshire?

All of Cambridgeshire, including the CB, PE postcode areas. Send your full postcode and we'll confirm.

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

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