Cut Edge Corrosion Treatment Bishops Stortford

Cut edge corrosion starts where factory coatings end — at cut edges, side/end laps and around fixings. UV and weathering lift the finish, exposing steel and allowing moisture to track into joints. Left alone, this leads to staining, leaks and premature sheet replacement.
Signs Your Building Needs Edge Repair
- Feathered or lifting coatings at lap lines and edges
- Rust streaks beneath joints or around bolt heads
- Hairline gaps, pinholes or damp insulation under laps
- Occasional water ingress during wind-driven rain
Our Cut Edge Corrosion Repair Process

- Inspection & Planning: Diagnose delamination and corrosion; confirm access, sequencing and safety.
- Mechanical Prep: Remove failed Plastisol/paint; treat rust; degrease to a sound metal edge.
- Priming: Apply compatible metal primers to stabilise edges and prepared areas.
- Lap Sealing: Tool elastomeric sealant into side/end laps, bolt heads and penetrations to specified depth/width.
- Protective Coatings: Install UV-stable topcoats with returns beyond lap edges (typically ≥50 mm); QA and clean-down.
Where advanced steel loss exists, selective sheet replacement may be recommended following survey.
Why Riolett Services for Cut Edge Corrosion Treatment
- Experienced teams with RAMS & COSHH provided as standard
- Night/weekend programmes to keep tenants and logistics running
- Consistent seal widths, tidy detailing at trims and fixings
- Manufacturer-aligned specifications and written guarantees
Costs & Timescales
Pricing depends on extent of delamination, exposure, access and specification. Many projects are completed in 1–2 days plus curing, with night or weekend programmes available. Share photos or book a free survey for a fixed quotation.
Cut Edge Corrosion — FAQs
Recent Work Near Bishops Stortford
- Business Park Block — Edge Stabilisation — cut edges & side/end laps; 1–2 days. Result: strong adhesion; neat lap lines.
- Logistics Hub — Reseal & Protect — laps; gutters; penetrations; phased nights. Result: clear drainage; sealed joints.
- Retail Parade — Plastisol Failure Fix — delam removal; prime & coat; 2 nights. Result: even coverage; UV-stable coat.
- Fitness Unit — Trim & Fixing Detailing — bolt heads; trims; returns; weekend. Result: crisp detailing; consistent colour.
- Warehouse South — Edge Defence — eaves edges; end laps; evening shift. Result: sealed edges; long-life topcoat.
Map — Projects Around Bishops Stortford
See where we’ve been working in Bishops Stortford.
We can schedule out-of-hours programmes across Bishops Stortford.
Client Reviews
Fair price and a leak-free result. Thank you!
Staining stopped and the roof looks cared for again.
Planned around deliveries—no disruption at all.
Preparation was thorough; the topcoat is even and clean.
Access, safety and handover all on point.
Specification matched exposure. Confident in longevity.
Contact & Coverage
Riolett Services
Tel: 07538 489392
Service area: Bishops Stortford and nearby locations.
Related services: Cladding Repairs • Cladding Spraying • Cut Edge Corrosion Treatment Broxbourne