Flat roof repairs across Staffordshire

Guide price

£150–£500

Repair price

Confirmed once the leak or damage is found

Condition survey report

£150–£300

Coverage

England, Wales, Scotland, NI

How much does a flat roof repair cost in Staffordshire?

Guide prices including VAT at West Midlands rates. We confirm the price once we've traced the leak or seen the damage.

Which flat roofs are common in Staffordshire?

Flat roofs in Staffordshire sit on low-rise post-war blocks of flats, lock-up garage blocks on estates and terraced streets with flat-roofed rear kitchens and bathrooms. England averages roughly 870 mm of rain a year and the West Midlands sits close to that, so falls and outlets are the difference between a roof that drains and one that ponds. Approximate 1991–2020 regional averages based on Met Office data.

Building regulations in England

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. Renovated roofs over heated rooms are insulated to around 0.16 W/m²K where that's feasible, and new extension roofs are built to 0.15 W/m²K. In Staffordshire the application goes to Stoke-on-Trent City Council, Newcastle-under-Lyme Borough Council, East Staffordshire Borough Council and 6 other councils. More on the rules.

Why does a flat roof leak in one place but drip somewhere else?

Because water rarely comes through the ceiling directly below the hole. It gets in at one point, runs along the deck, a joist or the top of the insulation, and drips wherever it finds a low spot or a gap in the ceiling.

That is why a patch over the damp patch so often fails. Before we repair anything, we work back from the stain to the likely entry point and check the usual weak spots: upstands where the roof meets a wall, flashings and cavity trays above them, laps and seams, outlets and gutters, drip trims, rooflight kerbs, and any fixings or cables that pass through the covering. The fault is frequently at an edge or a wall rather than in the middle of the roof.

Sometimes the cause isn't the roof at all. Defective pointing, a failed cavity tray or a cracked coping above the roof can let water in behind the upstand, and condensation in a cold roof can look exactly like a leak. Our guide to flat roof leaks covers these causes. If the path can't be found by inspection, a leak tracing survey is the next step.

Which repair materials work with my type of flat roof?

The repair has to use the same system as the roof, because many flat roof materials don't bond to each other and some damage each other.

• Torch-on felt: repaired with compatible bitumen membrane, cut back to sound felt and lapped well beyond the defect. Torching near timber, insulation or fascias needs care, and some details are better done with cold-applied methods.
• EPDM rubber: repaired with EPDM patches and the manufacturer's primer and seam tape. Bitumen products and many general-purpose sealants won't bond to EPDM and shouldn't be used on it.
• GRP fibreglass: the area is ground back, then new resin and glass matting are laid and finished with topcoat to match.
• Liquid-applied and single-ply: repaired with the same manufacturer's products wherever possible, as mixing systems can affect a material guarantee.
• Mastic asphalt: cracks and blisters are cut out and made good with new asphalt by an operative who works with it.

A tin of roof sealant or bitumen paint may stop a drip for a while, but on the wrong membrane it makes a proper repair harder later.

Which towns in Staffordshire do we cover?

• Stoke-on-Trent
• Newcastle-under-Lyme
• Burton upon Trent
• Cannock
• Tamworth
• Stafford
• Lichfield
• Kidsgrove
• Burntwood
• Longton
• Rugeley
• Leek
• Great Wyrley
• Biddulph

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