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Keystone Roofing & Building Ltd

Leadwork & Lead Flashing in North London

Flashings, valleys, bays and dormers — the details that keep water out.

Call free

0800 051 8429

Most leaks happen where the roof meets something else: a wall, a chimney, a window, a valley. That is where good leadwork matters.

We dress and fit new lead to the correct codes and lengths so it moves with the weather and does not crack.

Chimney stack with new lead flashing on a re-roofed bungalow

What the work covers

  • Step and cover flashings
  • Lead valleys
  • Bay window and porch roofs
  • Dormer cheeks and tops
  • Chimney back gutters and aprons
  • Replacing stolen lead with lead or alternatives

Signs of failing leadwork

  • Leaks where a roof meets a wall
  • Lead lifting, cracked or split
  • Missing lead after theft
  • Damp around bay windows or dormers

If any of these sound familiar, call 0800 051 8429 and we’ll come and look.

Leadwork: common questions

How long does lead last?

Correctly fitted lead can last 50 years or more. Most failures come from pieces that were too long or poorly fixed.

Is there an alternative to lead?

Yes. Lead substitutes are an option where theft is a risk. We will talk you through the pros and cons.

Can you replace just one flashing?

Yes. Small leadwork repairs are one of the most common jobs we do.

More leadwork jobs

  • Chimney stack with new flashing at roof level
    Chimney stack with new flashing at roof level
  • Repointed chimney with new lead flashing
    Repointed chimney with new lead flashing
  • Chimney with new lead flashing on interlocking tiles
    Chimney with new lead flashing on interlocking tiles
See all our work

Leadwork across the area

We carry out leadwork in North London and nearby, including:

Need leadwork in North London?

Free inspection and a fixed written price, with no obligation.

Call free0800 051 8429Get a quote