A practical guide for Leicester homeowners — written specifically for Leicester's housing stock and roofing conditions.
Lead flashing is sheet lead used to waterproof the junction between a roof covering and an adjacent vertical surface — a chimney, a dormer wall, a parapet, or a wall abutment. Where a tile roof meets a brick chimney, for example, water would otherwise penetrate directly at the tile-to-brick joint. Lead flashing bridges this gap and directs water away from the junction.
Step flashings are used at chimney side junctions where the roof slope runs alongside the chimney. Individual lead pieces step up the chimney in a staircase pattern, each piece tucked into a mortar joint of the chimney brickwork and dressed over the tile course below. Step flashings work in combination with soakers — individual L-shaped lead pieces that sit under each tile course at the chimney junction.
Apron flashings sit at the lower face of a chimney or dormer where the slope runs into the front face. A single piece of lead is dressed down over the tile courses below and turned up against the vertical face, secured into a mortar joint or cut groove.
Back gutters form at the upper face of a chimney where the roof slope rises above the chimney. A lead back gutter collects water running down the slope and directs it around the chimney to the step flashings on each side.
Every Victorian terrace in Highfields, Belgrave, South Wigston and North Evington has lead flashing at each chimney junction. On a typical 3-bed terrace with two stacks, that is four sets of step flashings and soakers plus two aprons. Original lead from the 1880s–1900s is at or past its design life on most Leicester Victorian terraces. Failed lead flashing is the most common cause of persistent winter leaks on this housing stock.
Damp staining on the chimney breast wall, particularly at the junction of the chimney and ceiling, indicates lead flashing failure. Water staining on the back of the chimney breast in the loft void confirms it. From the roof level, cracked, lifting or missing lead at the tile-to-chimney junction is visible. Failed lead cannot be permanently repaired with sealant — re-running in new lead is the only permanent solution.
Yes. The guidance in this article is written specifically for Leicester housing stock — the Victorian terrace belt, the post-war estates, the 1930s suburban stock and the outer Leicestershire towns. National guidance is referenced where relevant but the Leicester-specific context is the primary focus.
Call 0116 319 1348 to book a free survey. We provide written condition reports within 48 hours of the visit. Surveys are free across all of Leicester and Leicestershire with no call-out fee and no obligation to proceed with any work.
Yes. LE1, LE2, LE3, LE4, LE5, LE6, LE7, LE8, LE9, LE10, LE11, LE12, LE13, LE14, LE15, LE16, LE17, LE18, LE19, LE67 — all covered. Free surveys across all postcodes.
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Correctly installed code 4 milled lead flashings have a design life of 40–60+ years. Victorian lead on Leicester terraces is now 100–140 years old — well past design life. New lead installed today should last until at least 2065.
Thermal fatigue from 100–140 annual expansion and contraction cycles causes micro-cracks at fixed edges over time. Sealant repairs provide 2–3 years before adjacent metal fails. Re-running in new lead is the permanent solution.
Small localised failures can be patched for a 3–5 year interim repair. Widespread fatigue across a flashing run requires re-running the full detail in new lead — partial patches on fatigued lead fail quickly at adjacent points.
Code 4 (1.8mm) for chimney step flashings, soakers and abutment details. Code 5 (2.24mm) for valley linings, bay window lead flat roofs and parapet gutters. Using code 4 where code 5 is required produces earlier fatigue failure.
We cover all of Leicester city and the surrounding Leicestershire area. Free surveys with no call-out fee, written condition report within 48 hours of the visit. We have been working across Leicester and Leicestershire since 2003, carrying out repairs, re-roofing, flat roofing, lead work, chimney work and emergency call-outs across all property types and all LE postcodes.
NFRC registered (verifiable at nfrc.co.uk), £5m public liability insurance, 10-year written workmanship guarantee on all re-roofing work. No work starts without your written acceptance of the written itemised quote. Call 0116 319 1348 Monday–Friday 8am–6pm or Saturday 8am–2pm. Emergency line 24/7.
Every job starts with a free on-site survey. The written quote follows within 48 hours and specifies every element: scope of work, materials by manufacturer name, access method, guarantee period and payment terms. There are no verbal quotes, no time-pressure acceptance conditions, and no costs added on site without your prior written agreement. This is the standard we have operated to since 2003 and the standard we will continue to operate to. If you have had a poor experience with a Leicester roofer in the past, we would welcome the opportunity to demonstrate what transparent, professional roofing practice looks like.
Understanding the roofing terminology in this guide is most useful when applied to the specific housing stock types that make up Leicester's residential roofscape. Victorian terraces in Highfields, Belgrave and South Wigston (1870s–1900s), 1930s semi-detached in Oadby, West Knighton and Evington, and post-war estate housing in Braunstone, Eyres Monsell and Thurmaston each present the concepts in this guide in different forms. The practical application depends on which era of Leicester property you are dealing with.
This guide provides general information. For advice specific to your Leicester property, a free roof survey is the most reliable next step. The survey covers your specific roof elements — tile specification, lead work, mortar details, structural timbers — and provides a written condition report with prioritised maintenance recommendations. This is more useful than general guidance because every Leicester property is different, and the correct specification depends on what is actually present on your roof rather than what is typical for the era.
We carry out free roof surveys across all of Leicester city and the surrounding Leicestershire area. Surveys are available within 3–7 working days with no call-out fee. Written condition report within 48 hours of the visit. NFRC registered, £5m public liability insurance, trading since 2003. Call 0116 319 1348 Monday–Friday 8am–6pm or Saturday 8am–2pm. Emergency line 24/7.
We cover LE1 through LE19 including all city neighbourhoods (Highfields, Belgrave, Stoneygate, Clarendon Park, West Knighton, Evington, Braunstone, Eyres Monsell, South Wigston) and outer areas (Oadby, Wigston, Hinckley, Loughborough, Melton Mowbray, Birstall, Blaby, Syston). If you have a question about a roofing term and how it applies to your specific property, call us and we will give you an honest answer based on your postcode and property type.
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