Roofers in Hackney who actually turn up.

Roofing in Harrow

What Harrow roofs go wrong with, and what it costs

Harrow is a mostly suburban borough with long stretches of semi-detached and detached houses on quiet tree-lined roads. Many roofs here are old and showing it, with slipped tiles and worn flashing being common calls.

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The jobs we see most

• Retiling and tile replacement Replacing cracked or slipped clay and concrete tiles on the classic interwar semi, usually after a windy spell or simple weathering.
• Flat roof repairs Fixing or renewing felt and GRP flat roofs on extensions, where ponding water and perished coverings are the usual culprits.
• Chimney and flashing repairs Repointing chimney stacks and replacing worn lead flashing, a common source of damp patches.
• Guttering replacement Clearing or replacing guttering and fascias that have sagged after years of standing water and leaves from street trees.

Conservation areas and listed buildings

Much of inner London sits within conservation areas, and parts of Harrow are included. Where a property falls inside one, the council may require like-for-like materials for retiling, meaning the same type and colour of tile rather than a modern substitute. Homeowners unsure whether their street is covered should check with the council planning team before starting work.

What it typically costs in Harrow

Job	Typical range
Replace a few slipped slates or tiles	£150 to £350
Clear and re-line a valley or parapet gutter	£400 to £1,200
Chimney repointing and new flashing	£600 to £1,500 per stack
Replace a rear extension flat roof	£1,800 to £4,000
Full re-roof of a two-storey house	£8,000 to £16,000

Typical London ranges. Your quotes will depend on access, scaffolding and the materials on your roof.

One local tip

Walk around the house after a dry spell and look up at the tiles with binoculars; slipped or cracked tiles are often visible from the ground.