Roofers in Barnet who actually turn up.

Roofing in Barnet

What Barnet roofs go wrong with, and what it costs

Barnet is a large, leafy borough built up mainly in the 1920s to 1930s along the Northern line. Roofs here are mostly pitched tile on semis and detached houses, and slipped tiles, worn flashing and blocked gutters are the most common problems.

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The jobs we see most

• Re-roofing ageing semis Many semis still carry original tiles, and a full re-roof often makes more sense than patching once wear is widespread.
• Chimney repointing Brick chimney stacks need mortar joints and lead flashing checked regularly, as this is where most leaks start.
• Flat roof repairs Rear flat roof extensions often need resealing once they show ponding or cracking.
• Guttering replacement Tree-lined streets mean gutters clog faster, causing overflow damage to fascias.

Conservation areas and listed buildings

Parts of Barnet, particularly around Hampstead Garden Suburb and pockets of Mill Hill, sit within conservation areas. Roof work there may need like-for-like materials to preserve the original look. The council planning team can confirm whether a property is affected before work begins.

What it typically costs in Barnet

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

If your home is an interwar semi, ask your roofer to check the underlay condition during tile work, since it is often past its intended lifespan even when tiles look fine.