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Cut Edge Corrosion Treatment Lewisham

Survey, repair and long-term protection for metal roofs and cladding.
Request a Free Survey Call 07538 489392
Example of cut edge corrosion treatment in Lewisham
Delamination at sheet edges and laps treated and sealed.

Cut edge corrosion starts where factory coatings end — at cut edges, end laps and around fixings. UV and weathering cause the finish to lift, exposing the steel beneath. Left untreated, this progresses to leaks, staining and costly sheet replacement.

Recent project in Lewisham: Manufacturing Unit Laps — side laps; primer + seal; phased evenings. Outcome: long-term UV resistance.

Warning Signs

  • Peeling or lifting Plastisol/paint at sheet edges or laps
  • Rust staining below laps or around bolts
  • Hairline gaps along side laps; damp insulation or ceiling marks
  • Water ingress during wind-driven rain

Our Treatment Process

Lap sealing and protective coating application in Lewisham
Lap sealing and protective topcoats to specified widths.
  1. Preparation: Remove loose/failed coatings and corrosion; degrease and abrade to sound substrate.
  2. Prime: Apply appropriate metal primer to stabilise edges and corrosion-treated areas.
  3. Seal: Bed and tool sealant into side/end laps, fixings and penetrations to specified depth/width.
  4. Protect: Apply durable topcoats beyond lap edges (typically ≥50mm) for long-term UV and weather resistance.
  5. Handover: Quality checks, clean down and simple aftercare guidance.

In severe cases (advanced section loss), local sheet replacement may be recommended following survey.

Why Choose Riolett Services

  • Experienced teams; RAMS and COSHH provided as standard
  • Night or weekend programmes to minimise disruption
  • Neat, consistent finishes with tidy detailing at laps and fixings
  • Written guarantee backed by manufacturer specification

Cut Edge Corrosion — FAQs

It develops where factory coatings end at cut sheet edges or laps on metal roofs and walls. UV and weathering cause delamination, exposing steel and allowing rust.

We remove failed coatings, prepare and prime, then seal laps and fixings before applying durable topcoats beyond the edge for long-term protection.

Yes. We can schedule night or weekend works to minimise disruption and maintain access.

Recent Work Near Lewisham

  • Retail Strip Mall — end laps & gutters; night works. Result: tidy seal lines; no drips.
  • Cold Store Roof — edges & penetrations; weekend. Result: airtight seals; clean finish.
  • Trade Estate Block A — delam removal; prime; 1 day + cure. Result: sound base; even topcoat.
  • Gym & Leisure Unit — laps, bolts, trims; night works. Result: neat detailing; watertight laps.
  • Logistics Hub Edge Repair — cut edges, bolt heads; 2 nights. Result: uniform coverage; leak reduction.

Map — Projects Around Lewisham

See where we’ve been working in Lewisham.

We can schedule works out of hours to keep access open.

Client Feedback

Lewis M. (Owner-Operator)
June 2025 • ★★★★★

No fuss, good advice and a smart finish.

Priyanka V. (Ops Manager)
June 2025 • ★★★★★

Programme kept access open; quality checks throughout.

Owen D. (Site Lead)
July 2025 • ★★★★★

Seal width and coverage exactly as agreed. Great job.

Aaron F. (Facilities)
July 2025 • ★★★★★

Team were punctual and respectful; result looks strong.

Nadia J. (Store Manager)
July 2025 • ★★★★★

Quick quote, clear spec, tidy work. Recommended.

Kate T. (Estate Manager)
June 2025 • ★★★★★

Leak paths at end laps resolved. Clear before/after photos provided.

Contact & Coverage

Riolett Services
Tel: 07538 489392

Service area: Lewisham and surrounding locations.

Ready for a quick assessment? Email photos or request a site visit — we’ll provide a clear, fixed quotation.
Request a Free Survey Call 07538 489392

Related services: Cladding Repairs • Cladding Spraying