Leadwork Purton

Leadwork Specialists in Purton

Purton is 5 miles from our Swindon base. The exposed ridge-top at 100m creates specific conditions that affect leadwork work here. The Pavenhill and Ridgeway Farm represent the bulk of our post-war work, while the Church Street medieval cottages require specialist knowledge of traditional materials and techniques. We carry the right materials for both property types and switch between modern and period specifications daily.

Why Purton Matters for Leadwork

At exposed ridge-top at 100m, Purton faces specific challenges that generic specifications do not account for. Wind loading, humidity levels, temperature ranges and frost frequency all differ from sheltered Swindon. Every leadwork specification we write for Purton accounts for these local conditions. The Pavenhill and Ridgeway Farm see the bulk of our standard work, while the Church Street medieval cottages need conservation-grade materials and techniques.

Our Process in Purton

We survey from the roof, not just the ground. We photograph everything and explain what we find in plain English. We quote in writing with itemised costs and no hidden extras. We use the correct materials for the property type and local conditions. We do not subcontract. Every job carries our written 10-year workmanship guarantee. Call 0179 329 7084 for a free survey.

Materials and Specification

We use materials appropriate to Purton's conditions and property types. For the Pavenhill and Ridgeway Farm, we use modern high-performance materials with enhanced specifications where the local exposure demands it. For the Church Street medieval cottages, we use period-appropriate materials including lime mortar, reclaimed tiles and traditional lead dressing. All fixings are stainless steel or copper. We never compromise on specification because a cheap job that fails reflects on our reputation.

Lead Grades and When to Use Each

Lead sheet is graded by code number indicating thickness. Code 3 (1.32mm) is too thin for external roofing in Swindon conditions — it fatigues quickly from thermal cycling. Code 4 (1.80mm) is the standard specification for flashings, valleys and flat areas — the right balance of durability and workability. Code 5 (2.24mm) is used for exposed positions with extreme wind loading or areas subject to foot traffic. Code 6 and above are specialist applications. We use code 4 as standard on all Swindon work and upgrade to code 5 only where the exposure genuinely demands it.

Traditional Lead Dressing Techniques

Lead roofing is a craft skill that requires understanding of how the material behaves. Lead is bossed — shaped by hammering over a form — rather than folded sharply, which creates stress points that crack over time. Joints between sheets use welted seams — interlocking folds that create a mechanical waterproof bond without solder, which cracks from thermal movement. Each sheet is limited to 1.5m maximum in any direction to control thermal expansion. These techniques have been used for centuries because they work. Modern sealants and adhesives supplement but do not replace traditional lead dressing.

Ridge-Top Wind Patterns

Purton stretches along an east-west ridge at approximately 100m, exposed from both sides with no shelter from the flat farmland surrounding it. This creates a unique wind exposure pattern: western-end properties around the church and Purton Stoke catch Atlantic weather systems first, while eastern-end properties near the Swindon boundary face plateau winds from the town. The High Street running along the ridge itself is exposed from both north and south. We have mapped these wind patterns from years of repair data and specify fixings accordingly — enhanced on western and southern exposures, standard on the more sheltered northern lee.

Lead Theft Prevention

Lead roofing is valuable scrap metal and unfortunately a target for theft, particularly on unoccupied or secluded properties. There are several deterrent options we can advise on. SmartWater or SelectaDNA forensic marking makes stolen lead traceable. Tamper-evident fasteners on accessible lead flashings alert you to interference. Lead substitute products like Ubiflex provide a non-metal alternative for lower-risk areas while maintaining waterproof performance. For high-risk locations, we can specify lead-effect GRP that looks identical to lead but has no scrap value. We advise on the appropriate level of protection for each installation based on the property location and visibility.

When to Repair vs Replace Lead

Not every lead flashing problem requires complete replacement. A hairline crack at a single fold line can be repaired with a patch of matching lead dressed over the crack and sealed with compatible sealant. A lifted edge where the pointing has failed can be re-dressed and re-pointed without removing the existing lead. However, if the lead is cracked at multiple points, if it has become paper-thin from corrosion, if the original dressing was poor and water is getting behind the lead rather than over it, or if the lead has been patched repeatedly already, replacement is the better investment. New code 4 lead properly dressed will last 30-40 years. Repeated patching of deteriorated lead is money wasted on a material that has reached the end of its useful life. We assess honestly and recommend accordingly.

Lead Sourcing and Quality

We use only BBA-certified milled lead sheet from established manufacturers — Midland Lead, Associated Lead Mills or equivalent. Milled lead has a consistent thickness and grain structure that ensures predictable thermal behaviour and long service life. We do not use cast lead or recycled lead sheet of uncertain provenance. Every piece of lead we install is traceable to its manufacturer, certified to BS EN 12588, and stamped with its code weight. This traceability matters for insurance purposes, for conservation area compliance, and for your confidence that the material will perform as specified for its full 30 to 50 year expected lifespan.