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Flat roof systems

Mastic asphalt roofing across Tyne and Wear

We work on mastic asphalt roofs across Tyne and Wear, from local repairs and reflective coatings to full replacements on concrete and older timber decks. Replacement work starts with a free survey, leaks are traced where the cause is unclear, and you get a clear recommendation: repair, overlay or replace. You get a fixed written quote before any work is booked.

Specialist spreading hot mastic asphalt on the roof of a Victorian mansion blockComputer-generated example image
Price per m²
£79–£140
Typical life
30–60 years
Manufacturer guarantees
15-year material, up to 25-year system guarantees
30 m² roof
£3,200–£5,800

Tyne and Wear at a glance

Largest towns
Newcastle upon Tyne, Sunderland, South Shields, Washington
Postcode areas
DH, NE, SR
Building control
Newcastle City Council, Sunderland City Council, South Tyneside Council and 2 other councils
Neighbouring areas
Northumberland · County Durham · North Yorkshire · Cumbria
Guide price region
North East (−7% on West Midlands rates)

How much does mastic asphalt roofing cost in Tyne and Wear?

Guide prices including VAT at North East rates. The fixed price comes after a free survey for new and replacement roofs.

JobGuide price inc VAT
Mastic asphalt roof (30 m²), scaffold£3,200–£5,800
Localised patch repair£140–£470
Single garage (18 m²), EPDM rubber£1,500–£2,600
Extension (20 m²), EPDM, new deck + insulation£2,600–£4,550

Which flat roofs are common in Tyne and Wear?

Flat roofs in Tyne and Wear sit on 1960s and 1970s link-detached houses with flat-roofed garages and porches, newer estates where the first extension roofs are now being replaced and terraced streets with flat-roofed rear kitchens and bathrooms. England averages roughly 870 mm of rain a year; the North East is drier than the west but cold and windy near the coast, so wind uplift and freeze-thaw are in the specification. 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 Tyne and Wear the application goes to Newcastle City Council, Sunderland City Council, South Tyneside Council and 2 other councils. More on the rules.

How long does mastic asphalt last, and what guarantees are available?

Mastic asphalt is one of the longest-lasting flat roof systems, typically giving 30 to 60 years with good specification and maintenance. Many older asphalt roofs are still watertight decades after they were laid.

Age does show eventually. Common signs include crazing and cracking from sun exposure, blisters where moisture has been trapped beneath, splits at skirtings where the building has moved, and ponding where the deck has settled. Regular maintenance, such as renewing solar reflective paint, keeping outlets clear and repairing cracks early, makes a real difference to life.

Material and system guarantees are available on some specified asphalt systems, and we register them for you where the system allows. Every re-roof carries our written workmanship guarantee, with the length set out in the quote, and insurance-backed options can be discussed. Our lifespan guide compares asphalt with the other systems.

Is mastic asphalt still a good choice, or should I switch systems?

Mastic asphalt is still a good choice on concrete roofs, heritage and older buildings, and roofs that carry heavy foot traffic or plant. On lightweight timber roofs, garages and most modern extensions, another system is usually more practical.

Benefits: very long typical life; jointless and fully bonded; takes foot traffic well, especially with a paving finish; matches the original roof on many older buildings; local repairs blend into the existing surface.

Drawbacks: heavy, so the structure must be able to carry it; higher cost; needs specialist labour and hot works with molten material; can crack in cold if not well maintained, and softens in strong sun without a reflective finish.

If the structure is lightweight or the budget tight, torch-on felt or EPDM are common replacements. A compatible liquid-applied system can sometimes be laid over sound asphalt. On larger roofs, single-ply may be considered, and GRP suits smaller roofs needing a hard finish. Our repair or replace guide helps with the decision.

Which towns in Tyne and Wear do we cover?

Mastic asphalt roofing in Tyne and Wear: questions

Which towns in Tyne and Wear do you cover?

All of Tyne and Wear. The main towns have their own pages below, and if yours isn't listed we still cover it: send your postcode and we'll confirm.

How much does mastic asphalt roofing cost in Tyne and Wear?

£3,200–£5,800 for a 30 m² mastic asphalt roof including scaffold, at North East guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.

Which postcode areas do you cover in Tyne and Wear?

All of Tyne and Wear, including the DH, NE, SR postcode areas. Send your full postcode and we'll confirm.

Can you put felt or rubber over an asphalt roof?

Sometimes, if the asphalt is dry, well bonded and sound, using a compatible system and primer. Liquid membranes are a common choice because they bond well to cleaned asphalt.

Why is my asphalt roof cracking?

Asphalt typically cracks as it ages and becomes brittle from sun exposure, or where the building moves at skirtings and junctions. A solar reflective paint and early repairs help slow it down.

How heavy is a mastic asphalt roof?

Considerably heavier than felt, rubber or single-ply, which is why it is usually laid on concrete or strong timber decks. We check the structure before recommending asphalt on any roof.

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