Leadwork across Greater London
Lead flashings, valleys, aprons and bay roofs, cut and dressed to keep every roof junction watertight.
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- Emergency call-outs
- Pitched and flat roofs
- Homes and commercial
- Covering Greater London
Leadwork
Lead Flashings, Valleys and Bay Roofs in Greater London
Most roof leaks start at a junction rather than in the middle of the tiles: where the roof meets a chimney, a wall, a dormer or another slope. Lead is the traditional material for sealing those joints because it is durable, easy to shape on site and lasts a long time when it is fitted at the right thickness. Ashlar Roofing installs and replaces lead flashings, soakers, aprons, valley linings and lead-covered bay roofs, on pitched and flat roofs alike, so water is carried past each joint rather than into it.
Sheet lead is graded by code, which reflects its thickness. Code 4 is commonly used for flashings and soakers, while Code 5 is often chosen for valleys, gutters and bay roofs, where the lead handles more water and more wear. Lead expands and contracts with temperature, so it is fitted in lengths of around 1.5 metres or less, with laps between pieces, which stops it cracking. Cover flashings are wedged and pointed into a chase cut in the brickwork, and new lead is treated with patination oil to prevent the white staining fresh lead can leave on walls and tiles.
What's included
What Our Leadwork Service Covers
The main parts of the job, each listed in your quote.
- Step and cover flashings at chimneys and walls to stop water tracking down brickwork
- Lead soakers under tiles or slates at abutments
- Valley linings in heavier code lead to handle concentrated water flow
- Chimney aprons and back gutters that channel rain around the stack
- Lead-covered bay roofs and canopies dressed to shape
- Patination oil applied to new lead to prevent white run-off stains
Quotes for Leadwork across Greater London
Tell us what is happening with your roof and we will arrange a visit and a quote.
Our work
Recent Work from Ashlar Roofing
Why choose us
Why Choose Ashlar Roofing for Leadwork
Lead Matched to the Job
We specify the code and length of lead for each detail, so it can move with the seasons without splitting.
Leaks Traced at Source
We look at how water is reaching the inside of the house, rather than simply covering a stain with sealant.
Leadwork with Roofing
Lead can be renewed alongside chimney, tiling or flat roof work, so the junctions and the roof around them are handled by one firm.
WhatsApp Photos
Photos of a stained ceiling or a lifted flashing, sent on WhatsApp, help us understand the issue before visiting.
About Ashlar Roofing
One Roofing Firm for the Whole Roof
Ashlar Roofing works on houses, flats and commercial premises across Greater London. Pitched roofs, flat roofs, chimneys, leadwork and roofline are all handled by the same firm, so you have one contact for the whole job.
Emergency call-outs
Leaks and storm damage prioritised
Pricing
What Affects the Cost of Leadwork
The price of leadwork depends on:
- The type of detail, such as a flashing, valley, apron or full bay roof
- The code of lead required and the quantity used
- Whether surrounding tiles or slates need to be lifted and relaid
- Repointing or brickwork repairs at the chase
- Access to the chimney, valley or bay
The work
How We Carry Out Leadwork
The main stages of the job, from the first inspection to the final check.
Tracing the Problem
We check the existing lead for splits, lifting edges, failed pointing and incorrect laps to find where water is getting in.
Choosing the Code
The lead thickness is matched to the job, typically Code 4 for flashings and Code 5 for valleys and bay roofs.
Cutting and Dressing
Lead is cut into short sections, dressed to the shape of the roof and wall, and lapped so water always runs over a joint, never into it.
Fixing and Finishing
Flashings are wedged and pointed into the brickwork and patination oil is applied. We then review the completed work with you and confirm everything has been done as agreed.
FAQs
Common Questions About Leadwork
How long does lead flashing last?
Why is my lead flashing leaking?
Can lead be repaired, or does it need replacing?
Are there alternatives to lead?
What is the white staining below new lead?
Still Have a Question?
If your question is not answered here, get in touch and we will discuss it with you. You can also send photos on WhatsApp.
Get in touchAreas we cover
Leadwork across Our London Areas
We carry out leadwork in all of these areas and across the rest of Greater London.
- Walthamstow
- Stratford
- Canning Town
- East Ham
- Plaistow
- Camden Town
- Woodford
- Finsbury Park
- Ealing
- Southall
- Richmond
- Twickenham
- Wood Green
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