Commercial and industrial roofing

Commercial roofing and industrial roofing bring different pressures to a residential job: larger areas, more roof penetrations for plant and ventilation, and a business that needs to keep operating underneath while the work happens. We plan every commercial job around that, with clear timeframes and access arrangements agreed before we start, not worked out on the day.

What we handle

• Large format flat roofing in GRP or EPDM for warehouses, retail units and office buildings
• Roof repairs and leak tracing across large roof areas with multiple penetrations
• Gutter and downpipe systems sized correctly for commercial roof areas
• Planned maintenance to catch problems before they become shutdowns
• Roof surveys and condition reports for landlords, managing agents and insurers

Why commercial flat roofs fail

The same principles apply as on any flat roof, fall, drainage and detailing, but at commercial scale the consequences of getting it wrong are bigger: pooling water across a larger area puts more weight on the structure, and a single failed upstand around a rooflight or plant penetration can mean water tracking a long way before it shows up as a stain inside. Regular inspection catches these early, before they become an emergency shutdown.

Roof penetrations are usually where problems start

Commercial roofs carry far more through the roof surface than a typical house, ventilation ductwork, plant units, pipework, cable runs and rooflights, and every one of these is a place the membrane has to be dressed and sealed around correctly. Each additional penetration is another potential failure point, which is why a large commercial roof with a lot of plant on it needs inspecting more frequently than a simple flat roof of the same size with none.

Planned maintenance versus reactive callouts

A scheduled inspection programme, checking the roof at set intervals rather than waiting for a leak to appear, catches failing upstands, blocked outlets and early membrane wear while they are still a small job. For a business, the cost of a planned half day inspection is consistently lower than the cost of an emergency callout, a shutdown, and the water damage that has already happened by the time a leak becomes visible inside the building.

Working around your business

We agree access, working hours and any noise or disruption limits with you before scheduling the job, and where a roof area can be sectioned off and worked on in phases while the rest stays weathertight, we do that rather than opening the whole roof at once.

Documentation you can use

Commercial clients, landlords and managing agents usually need more than just a completed job, they need a paper trail. We provide photographs of the work at each stage and a written report suitable for insurance, lease compliance or handover to a managing agent.

What you get

Every commercial job carries our 10 year written workmanship guarantee and is covered by £1,000,000 public liability insurance. For the material detail on flat roofing options, see GRP fibreglass roofing and EPDM rubber roofing.

Who we work with

We take instruction directly from business owners, landlords, managing agents and facilities managers, and we are used to working within a lease's compliance requirements or an insurer's specification where one applies. If you need us to liaise directly with a managing agent rather than yourself, we can do that too.

Safe working on larger roofs

Commercial roofs are often accessed differently to a domestic pitched roof, sometimes via a fixed access ladder, a hatch, or scaffold depending on the building, and always need proper edge protection given the larger, flatter areas usually involved. We follow the correct method for each building rather than a one-size approach, and £1,000,000 public liability insurance covers the work throughout.

Warehouses, retail units and offices

Each building type brings its own typical roof problems. Warehouse roofs often carry rooflights that degrade and need replacing over time, retail units frequently have plant and signage fixed through the roof surface with penetrations to manage, and offices tend to have more complex roof shapes with multiple levels and internal gutters. We have worked on all three, and we assess each roof on its own specifics rather than apply a single template regardless of the building.

Older degraded rooflights are a particularly common weak point on warehouse roofs, brittle GRP panels installed decades ago that have become a genuine fall risk as well as a leak point, and worth flagging specifically if your building has them.

Areas we cover

Commercial and industrial roofing across Peterborough, Cambridge, Norwich, Wisbech and the rest of Cambridgeshire, Norfolk, west Suffolk and south Lincolnshire.