Metal Roof Coatings & Refurbishment
That Roof Has Been Leaking for 3 Years. Your Facilities Team Has Run Out of Buckets. We Can Fix It for Half the Price of Replacement.
Cut-edge corrosion. Leaking bolt fixings. Pitted sheeting. We've been refurbishing industrial metal roofs for decades — with HD Sharman systems that come with real, BBA-backed guarantees.
Most Metal Roofs Start Failing After 15–20 Years
Profiled metal roofs — the standard covering on warehouses, factories, and distribution centres across the UK — have a finite life. Cut-edge corrosion eats into the sheet laps. Bolt fixings work loose and leak. Rooflights become brittle and crack.
The traditional answer is a full strip-and-replace re-roof — costing hundreds of thousands and shutting down your operation for weeks. But in most cases, the roof structure is still perfectly sound. You don't need a new roof. You need the right coating system.
What We See on Survey
- Cut-edge corrosion advancing along sheet laps
- Leaking bolt fixings — rusty staining visible inside
- Brittle, crazed GRP rooflights letting in water
- Failed sealant and mastic at flashings and verges
- Internal water damage to stock, equipment, and finishes
- Previous patch repairs that haven’t lasted
The HD Sharman Solution
Approved specification partner — Delcote®, Seamsil®, and Delglaze® systems.
Saves 50–70% vs Replacement
A Delcote® full roof coating typically costs a fraction of strip-and-replace, with no waste to landfill and minimal business disruption.
Up to 25-Year Guarantees
Delcote® 25 carries a 25-year product guarantee. Seamsil® 100 cut-edge corrosion treatment is BBA-approved for 15 years.
BBA Certified & AA Fire Rated
Delcote® systems carry independent BBA certification and AA fire ratings — the highest level of external fire performance.
No Tear-Off Required
Applied directly over existing profiled metal by roller, brush, or airless spray — with primerless adhesion to most substrates.
Seamless & Weatherproof
Creates a continuous membrane from ridge to eaves. No joints, no seams, no weak points. Resistant from -100°C to +200°C.
Works Around Your Business
No hot works, no building closure required. We work while your factory or warehouse continues to operate below.
Buildings We Refurbish
Commonly Asked Questions
Is a roof coating just a temporary fix?
No. HD Sharman Delcote® has over 35 years of proven, real-world performance on UK industrial roofs. With a 25-year product guarantee backed by BBA certification, this is a genuine long-term refurbishment solution — not a stop-gap. We’ve seen installations from the 1990s still performing perfectly.
My roof has severe cut-edge corrosion — can it still be saved?
In most cases, yes. HD Sharman’s Seamsil® 100 is specifically designed for cut-edge corrosion and carries a 15-year BBA-approved guarantee. We treat the corroded edges, encapsulate bolt fixings with Seamsil® 400, then apply the Delcote® coating over the top. If sheeting has corroded through to structural failure, we’ll tell you honestly.
How does the cost compare to a full re-roof?
An HD Sharman roof coating typically saves 50–70% compared to strip-and-replace. There’s no structural alteration, no waste to landfill, and the work is completed much faster with minimal disruption. For a roof in reasonable structural condition, coating is nearly always the smarter financial decision.
Can my rooflights be fixed at the same time?
Yes. HD Sharman’s Delglaze® system restores aged GRP rooflights with a clear coating carrying a 10-year guarantee. It’s typically done as part of the full roof refurbishment, saving you the cost of separate rooflight replacement.
What’s the difference between Delcote® 10 and Delcote® 25?
Delcote® 25 is a two-coat system with a 25-year guarantee. Delcote® 10 is single-coat with a 10-year guarantee — ideal for shorter tenancies or phased budgets. The clever part: Delcote® 10 can be topped up later to achieve a full 25-year guarantee, giving you a staged investment approach.
What Our Clients Say
“We’d been patching the same warehouse roof for three years. Vanguard assessed it, specified a full overlay system, and delivered it in two weeks. Fixed price, no extras, full documentation. Exactly what we needed.”
Facilities Manager
Facilities Management, Accor Hotels Group
“Our metal roof was corroding and leaking in multiple places. Vanguard’s coating system extended its life by at least 15 years at a fraction of the replacement cost.”
Operations Director
Industrial, Manufacturing Facility, Birmingham
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