
Cut edge corrosion treatment and repair for metal roofs across the UK
Surveys, cut edge corrosion treatment, full spray coatings and gutter lining for metal roofs, carried out by expert contractors and guaranteed through Basecare. If your roof is starting to corrode, get a free assessment.


We've got cut edge corrosion covered. Specialist treatment for metal roofs, from a single lap to the whole roof.
Cut edge corrosion is the most common reason a metal roof gets replaced early, and one of the easiest to stop. The corrosion is treated, sealed and coated with certified liquid systems, the sheets stay where they are, and the repair is guaranteed. Expert contractors across the UK, and a free assessment to start.
- Repaired, not replaced
- Certified liquid systems, applied by expert contractors
- Guaranteed through Basecare, material and workmanship
- Free assessment to start, no obligation
A system for every stage of a metal roof. From a single rusting lap to a full roof coating.
The four liquid-applied systems are developed and supplied by Allbase, and the survey decides which one a roof gets. Two seal and reinforce the cuts where the sheets are still sound. Two are sprayed across whole roofs when the factory coating has had its day. All four are certified, installed by expert contractors and guaranteed.
Cut edge corrosionSTPFlexible, moisture curing sealant. The everyday choice for sealing the cuts.
Cut edge corrosionPolyurethaneHigh build reinforcement, for cuts that need more than a seal.
SprayHybrid polymerSeamless spray coating across the whole roof.
SprayPolyureaFast curing and hard wearing, for roofs that cannot wait.
A quick roof assessment. Five questions, an indicative grade, and what it would take to put right.
Cut edge corrosion goes through three stages, and which one a roof is at decides whether it needs a repair at the cuts or a whole roof coating. Answer five questions and you will have a rough idea before anyone visits.
Question 1 of 5
New to the problem? What is cut edge corrosion?
What we do. For the corrosion, the roof and everything on it.
- Cut edge corrosion treatment
The cuts cleaned, sealed with mastic and coated with a reinforced system.
Find out more - Full spray roof coating
A seamless coating across the whole roof over prepared and sealed sheets.
Find out more - Gutter lining and coating
Box and valley gutters relined along their full length.
Find out more - Roof surveys and moisture mapping
Every roof inspected, and wet insulation found before the repair.
Find out more - Drone roof surveys
Whole-roof condition without the access costs.
Find out more - Maintenance plans
A planned inspection cycle that keeps the guarantee in place.
Find out more
The proof is on the roof. Recent work by the expert contractor network.
What happens next. The four stages from first contact to guarantee.
Survey and condition report
A local surveyor inspects the roof and writes it up with the roof's condition and the options.
Proposal and fixed quote
The recommended works, the system, the cost and the timescale, in writing. No obligation.
Repair
An expert contractor installs to the specification, around a live site, and the work is inspected on completion.
Guarantee and maintenance
Basecare cover and the completion records, with a maintenance cycle that keeps the guarantee in place.
Surveys and treatments near you. Wherever the roof is, there is a surveyor and an expert contractor who covers it.
Cut edge corrosion moves faster on some roofs than others: salt air on the coast, sulphur and grit around heavy industry, and sheltered inland sites slowest of all. Every area below has a page of its own with the towns, postcode districts and estates it covers, and what a roof there tends to face.
Start with the address
Find the building, then outline the roof on the satellite view.
Ready to get it sorted?
Start with a free assessment. If the roof needs a survey, a specialist books it. If it needs repairing, the work is guaranteed.
Free assessment
A few details about the roof. Takes a few minutes, commits you to nothing.
Start the assessment