Cut Edge Corrosion Treatment South Wimbledon

Cut edge corrosion starts when the factory finish stops — at cut edges, lap joints and around fixings. Once the coating lifts, steel oxidises and moisture tracks into the joint. We break that cycle with specification-driven prep, sealing and protective coatings.
Typical Signs You’ll See
- Lifting/feathered coating at edges and lap lines
- Rust streaks under joints or around bolt heads
- Pinholes and fine gaps along side laps
- Occasional ingress during wind-driven rain
Specification-Led Treatment

- Survey & Planning: Diagnose delamination, corrosion and moisture routes; confirm safe access and sequencing.
- Mechanical Preparation: Remove failed Plastisol/paint; treat corrosion; degrease to a sound edge.
- Priming: Apply compatible metal primers to stabilise prepared areas.
- Lap Sealing: Tool elastomeric sealant into side/end laps, penetrations and bolt heads to specified width/depth.
- Protective Coatings: Install UV-stable topcoats with returns beyond lap edges (typically ≥50 mm). QA and clean-down included.
Where section loss is advanced, selective sheet replacement may be advised after survey.
Why Riolett Services
- Experienced crews with RAMS/COSHH and clear QA records
- Night/weekend programmes to keep tenants and logistics running
- Consistent seal widths, tidy detailing at trims and fixings
- Manufacturer-aligned specifications and written guarantees
Cut Edge Corrosion — FAQs
Recent Projects Near South Wimbledon
- Wholesale Roof — Corrosion Arrest — cut edges; spot rust treatment; weekend. Result: stable edges; tidy seal width.
- Trade Corner — Side Lap Upgrade — side/end laps; fixings; penetrations; phased access. Result: sharp returns; leak paths closed.
- Light Industrial — Eaves Interface — gutter/eaves junctions; returns; 2 days + cure. Result: improved flow; consistent sheen.
- Retail Pod — Edge Reset — delam removal; prime & reseal; night works. Result: reliable base; clean topcoat.
- Depot South — Edge Protection — laps; bolt caps; trims; evening shift. Result: robust seals; smart finish.
Map — Active in South Wimbledon
See where we’ve been working in South Wimbledon.
Out-of-hours programmes available across South Wimbledon.
Client Feedback
Delivered as quoted. Value for money.
Inspection was thorough and the lap seals are crisp. Water ingress stopped.
Evening programme kept us trading. Finish looks great.
Good prep, tidy masking and a consistent topcoat.
Professional team and a clean handover. Recommend.
End laps sealed neatly and staining has gone.
Contact & Coverage
Riolett Services
Tel: 07538 489392
Service area: South Wimbledon and nearby locations.
Related services: Cladding Repairs • Cladding Spraying • Cut Edge Corrosion Treatment Merton Park