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Install industrial gutter systems.
Large-capacity commercial gutters — box, valley or eaves systems for industrial roofs.
✓ Updated May 2026✓ Free quotes✓ Vetted pros
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Undersized for storm events
Cheap gutter calculations use average rainfall not 1-in-30-year storms. Over-flow events cause major water ingress.
Bird and pollen blockages
Industrial gutters in semi-rural locations block with pollen and bird debris. Annual cleaning contract is essential.
Galvanic corrosion
Aluminium gutters with steel fixings corrode at the contact points. Use stainless or aluminium fixings.
Snow load
Heavy snow sliding off a roof can rip a gutter off. Snow guards or breakers are required on north-facing slopes.
Costs & timeline
Know what it costs. Know when it ends.
Indicative UK ranges and what affects price.
Cost range
By job type
Inc. VAT · 2026
Source: NMT quotes
Source: NMT quotes
Aluminium industrial gutter per metre200–250mm wide
£45–£120
Galvanised steel gutter per metrePainted finish
£40–£110
Stainless steel industrial gutterFood / pharma applications
£120–£250
110mm downpipe per metreuPVC or steel
£20–£50
Siphonic outletPer outlet, specialised
£250–£800
Install labour per metreIncludes scaffold/MEWP
£20–£80
!
Quote spread is typically ± 18% — always get 3 quotes.
At a glance
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Guttering explained
Industrial gutters handle the huge roof areas of factories, warehouses, schools and barns — typically 5,000–50,000 m² roofs. Expect to pay £45–£180 per metre for industrial gutter systems in the UK, with full warehouse fit costs running into £20,000–£200,000+. Sizing follows BS EN 12056-3 calculations.
What Does the Work Involve?
Industrial gutter systems are larger (150–250mm wide), often built-in (boxed gutters at parapets or between roof slopes), and use larger diameter (110–160mm) downpipes. Siphonic drainage systems eliminate the air entry that limits gravity flow — small-bore pipes carry much greater flow rates. The installer is usually working with the original roofing contractor as part of a wider new-build or re-roof.
Typical Costs
| Item | Low (£) | High (£) | Notes |
|---|---|---|---|
| Aluminium industrial gutter per metre | 45 | 120 | 200–250mm wide |
| Galvanised steel gutter per metre | 40 | 110 | Painted finish |
| Stainless steel industrial gutter | 120 | 250 | Food / pharma applications |
| 110mm downpipe per metre | 20 | 50 | uPVC or steel |
| Siphonic outlet | 250 | 800 | Per outlet, specialised |
| Install labour per metre | 20 | 80 | Includes scaffold/MEWP |
| Maintenance contract annual | 500 | 5,000 | Inspection + clean |
How Long Does It Take?
New-build industrial roof drainage is typically 2–6 weeks as part of the wider roof contract. Repair or maintenance: 1–2 days for typical interventions.
DIY or Professional?
Professional only — Working at Height regulations strictly apply, harnesses and MEWPs required, and sizing must follow British Standard calculations.
Choosing the Right Tradesperson
A commercial roofing contractor with industrial gutter experience. Brands to look for: Hadley, Kingspan, Tata Steel for cladding/gutter systems; HepworthGalv for steel gutters; Geberit Pluvia for siphonic. Insist on a roofing-specific contractor not a general builder.
UK Regulations
BS EN 12056-3 sizing calculations. BS 6229 for box gutter design. Working at Height regulations strict on industrial scale. The roof drainage design is typically signed off as part of the building's Construction Design Management (CDM) package.
Common Problems
- Undersized for storm events: Cheap gutter calculations use average rainfall not 1-in-30-year storms. Over-flow events cause major water ingress.
- Bird and pollen blockages: Industrial gutters in semi-rural locations block with pollen and bird debris. Annual cleaning contract is essential.
- Galvanic corrosion: Aluminium gutters with steel fixings corrode at the contact points. Use stainless or aluminium fixings.
- Snow load: Heavy snow sliding off a roof can rip a gutter off. Snow guards or breakers are required on north-facing slopes.
Frequently Asked Questions
What is siphonic drainage?
A drainage system that uses small-bore pipes filled with water (no air entry), creating a siphon effect that flows at much higher rate than gravity. Used on supermarkets, warehouses, large industrial roofs where downpipe count must be minimised.
What's the biggest roof a single gutter can handle?
With deepflow industrial 250mm gutter and 160mm downpipes, individual gutter runs can drain 500–1,000 m² of roof. Siphonic systems can drain 5,000 m² per outlet.
How often should industrial gutters be cleaned?
Quarterly to annually depending on environment. A bakery near a tree line might need quarterly; a clean warehouse in an industrial estate annually is fine.
What size downpipes for an industrial gutter?
Standard industrial: 110mm uPVC or 100mm galvanised steel. Heavy-duty: 150mm or 200mm. Sizing is from BS EN 12056-3 calculations.
Are industrial gutters insurance-required?
Yes — most commercial building insurance requires documented annual maintenance and inspection. A maintenance contract with photographic evidence is the norm.
How do you maintain gutters at height on a warehouse?
Scaffold towers, MEWPs (mobile elevating work platforms), or roof-edge harnesses. Industrial maintenance contractors carry all three.
This guide was written with AI assistance and is intended for general information only. Prices are estimates based on UK averages and may vary by region. Always get at least three quotes and consult a qualified professional before starting any work.
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