Roofers in Hendon who actually turn up.

Roofing in Hendon

What Hendon roofs go wrong with, and what it costs

Hendon (NW4, London Borough of Barnet) grew up around the Northern line in the 1920s and 1930s, and most of its housing dates from those two decades. The roofs are now eighty to a hundred years old and the enquiries reflect that.

The houses

Most of Hendon is interwar semi-detached housing around Hendon Central, Brent Street, Watford Way and the Vale: clay or concrete tiled hipped roofs, bay windows with small flat roofs, and often a side garage with a felt flat roof. Church End, around St Mary's and the Burroughs, is the old village with Georgian and Victorian houses in slate and a conservation area. Post-war blocks near Brent Cross and along the North Circular add asphalt and felt flat roofs to the mix.

The jobs we see most

• Loose ridge and hip tiles on the hipped 1930s roofs, once the original mortar has failed.
• Bay roof leaks at the front of the house, where the small flat roof over the bay has perished.
• Concrete tiles from a 1970s re-roof now at the end of their life, often too heavy for the original timbers.
• Chimney stacks leaking through cracked flaunching and old lead.
• Garage and extension flat roofs, felt replaced with GRP or EPDM.

Conservation areas

Hendon Church End (the Burroughs and St Mary's) is a conservation area, and a few of the older buildings are listed, so repairs there should match the existing slate or tile. Across the rest of NW4 like-for-like repairs need no permission. If you're changing the roof covering or adding a dormer, check with Barnet first.

What it typically costs in Hendon

Job	Typical range
Re-bed ridge and hip tiles	£250 to £600
Re-cover a bay window roof	£400 to £900
Chimney repointing and flashing	£500 to £1,300
Replace a garage or extension flat roof	£1,500 to £3,500
Full re-roof of a 1930s semi	£8,000 to £15,000

Most Hendon houses have a drive or side access, which keeps scaffold simple and prices toward the middle of the London range. Ranges are a guide, not a quote.

One local tip

If your semi was re-roofed in concrete tile decades ago and the ridge line looks like it sags in the middle, mention it when you send the form. Heavy concrete on 1930s rafters is common in Hendon, and it changes what the roofer should be checking.