Kommercial Guttering
Kommercial guttering profiles cover the angles, outlets, unions and reducers that make up a commercial run at 170mm, with 110mm and 160mm outlets. Fittings match the 3m and 4m gutter lengths, including reducer tees for joining into an existing run of kommercial guttering.
Free delivery on orders over £150 inc VAT.
22 UK Branches
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Choosing Kommercial Guttering
Frequently Asked Questions
Match three things: the profile shape, the width across the top of the gutter, and the manufacturer's system. Two 112mm half round gutters from different makers can have seals that will not grip each other. If you are repairing rather than replacing, take an offcut or a clear photo of an existing union before ordering.
When the roof area draining into one run is more than a domestic profile can carry — typically a warehouse, farm building, industrial unit or a block of flats. Signs an existing run is undersized: it overflows at the back in heavy rain, or water sheets over the front edge rather than running to the outlet.
At the low end of the fall, above a gully or a suitable discharge point, and as close as practical to a downpipe route that can run straight down the wall. On a long elevation it is usually better to fall to an outlet at each end than to run the whole length to one, which needs more fall and a deeper drop.
Not reliably. Profiles that look alike often differ by a few millimetres across the seal, so a union from one system may not grip, or may leak, on another. Match the profile and size already on the building. If a run is being replaced piecemeal, bring an offcut or a photo of the union before ordering.