Lead Flashing in Hailsham

Lead Flashing in Hailsham

Lead flashing in Hailsham carries higher specification requirements than most inland locations. The dominant Victorian town centre with 1960s–80s residential estates on the western and northern fringes means that many Hailsham properties have original lead installations now at or past their design life. The local inland frost-pocket location — freeze-thaw cycles are more severe here than on the coast, accelerating mortar and pointing failures accelerates corrosion — we specify code 4 lead as the minimum on all Hailsham work, and code 5 on any property within 500 metres of the seafront or in a particularly exposed position.

The most common lead flashing failures we encounter in Hailsham involve mortar ridge failure and de-nailing on 1970s concrete tile estates. Incorrect lead grades fitted by previous contractors are the single most frequent problem — code 3 lead fails significantly faster in East Sussex's coastal climate and we will not fit it.

Lead Flashing Work We Cover in Hailsham

Chimney apron and back gutter replacement. Stepped and cover flashings on chimney stacks. Valley lining replacement — code 4 minimum, properly lapped and clipped. Bay window flat roof lead replacement. Dormer cheek and head flashings. Abutment flashings where extension roofs meet walls. All lead work in Hailsham is carried out by experienced lead workers, properly dressed and fixed into the mortar joint — not just pointed over.

Lead Code Specification for Hailsham

Code 4 lead is our minimum specification for all Hailsham properties. This is heavier than the code 3 that is sometimes installed to reduce cost — code 3 splits under thermal cycling within 8–12 years on exposed elevations. On coastal-adjacent Hailsham properties and on chimney stacks with south or west aspects, code 5 is our recommendation. We will not substitute code 3 regardless of budget pressure.

How Lead Flashing Is Correctly Fitted in Hailsham

Lead is cut and bent to profile, not just bedded in mortar or frame sealant. Stepped flashings are cut into the mortar joint and secured with lead wedges — not surface-fixed. Back gutters behind chimney stacks are laid with correct falls to the outlets. Patination oil is applied to all new lead on installation — this prevents the run-off staining that bleaches pointing and brickwork on Hailsham properties.

Why Lead Flashing Fails on Hailsham Properties

The most common cause of lead failure in Hailsham is incorrect code — undersized lead that splits under thermal movement. The second cause is poor initial fixing — surface-bedded lead that lifts rather than step-flashed lead that cannot. Age-related fatigue on pre-1960 original lead is the third. In all cases the correct fix is replacement, not patching or sealant application over the existing lead.

Properties on South Road and Battle Road are among the most frequent lead flashing call areas we cover in Hailsham. If your property was built before 1970 and has not had lead work in the last 15 years, it is worth arranging a free survey.