Gutters & Rainwater Goods
Protect your buildings with an efficient and functional rainwater dispersal system.
Bespoke Gutters & Rainwater Systems
We manufacture a comprehensive range of guttering solutions, including trimline gutters, heavy-duty box gutters, and membrane-lined gutters, all tailored to meet the specific requirements of your project.
To provide a complete rainwater management system, we also supply a full range of bespoke accessories, including hoppers, downpipes, swan necks, shoes, and brackets. All components can be manufactured in matching materials and finishes to ensure a consistent and professional appearance throughout the installation.
Every gutter system is custom-made to your exact specifications and can be manufactured in pre-finished steel, pre-galvanised steel, or aluminium. pre-galvanised steel and aluminium options can also be powder coated in a wide range of RAL colours, allowing you to achieve the ideal finish for your building.
Our guttering products are widely used across commercial, agricultural, and industrial sectors, where durability and performance are essential. However, many of our systems are equally suitable for domestic applications, providing a high-quality, long-lasting solution for residential projects.
Trimline Gutters
Trimline gutters, designed for high-capacity water flow, are ideal for industrial and agricultural buildings with profiled steel roofing and cladding. The gutters are designed to suit both roof pitch and roof sheet profile.
This range of gutters are typically manufactured in the same material as the roof and cladding sheets (plastisol or painted finishes) and can either match the colour or be a contrast for architectural aesthetics. The inside leg of the gutter is fixed to the underside of the box profile sheet, and a gutter support arm is used to extend the crown of the sheet and support the outside of the trimline gutter.
The gutters are typically supplied in 3m lengths which are joined using internal butt straps fixed in place using stitcher screws (or rivets) and sealant. Gutter outlets and stop ends are generally supplied loose for fitting on site.
Where a gutter runs around the perimeter of a building the gutter profile can be fabricated into external or internal corners eliminating the need for mitring and fixing on site, reducing labour time and the likelihood of leaks.
Hoppers, square downpipes, downpipe shoes and adaptors can be manufactured in the same material and colour as the gutters.
Heavy Duty Box and Valley Gutters
Heavy-duty box gutters, available in heavier gauge (1.5mm, 2.0mm or 3.0mm thick) galvanised steel or aluminium, are a versatile solution and used predominantly on industrial and agricultural buildings although they can be utilised on domestic properties.
The gutters are typically manufactured in 3m lengths as standard but can occasionally be folded in 4m lengths depending on material type and gauge and can be joined in two ways:
- Internal butt strap system using bolts, nuts and mastic, drilled on site as required.
- Joggle jointed system where a joggle is formed in one end of the gutter and the next length of gutter is laid inside fixing together through pre-punched holes using bolts, nuts and mastic. Captive nuts can be supplied where no underside access to the gutter is available.
Stop ends can be supplied either welded into place, in the workshop, or supplied loose for fixing on site.
Weir overflow ends can be incorporated into the stop ends if required.
Membrane Lined Gutters
We can also supply pre-bonded membrane lined gutters. These comprise a high performance 1.2mm thick PVC membrane factory bonded to a 1.2mm galvanised substrate. Incorporating an anti-slip tread pattern the membrane is designed to withstand extremes of weather and ponding water resulting in a virtually maintenance free gutter. A 75mm long flap is provided at the ends of the sheets for joining onto the next gutter.
All joins are heat welded on site, reducing installation time and providing a watertight seal.
Half Round Gutters
For half round steel gutters and accessories please click the below link to visit our sister company’s website.
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Gutters & Rainwater Goods related FAQ’s
Yes, all gutters that SEFAB manufacture are made to customer’s specific requirements.
There are several different types of commercial/industrial gutters that can be used, dependant on their location on the building, and the volume of water they will have to transfer from the roof. Please contact our sales team to discuss your options.
Typically, to match stock material, gutters are manufactured in 3m lengths, however a limited range of finishes and colours can be offered in 4m lengths.
Heavy duty gutters are usually used on agricultural/industrial buildings, but smaller gutters can also be used for domestic applications.
Trimline gutters are typically manufactured from 0.7mm thick pre-finished (plastisol or polyester) coated material. Heavy duty commercial/industrial gutters are typically manufactured from 1.5mm, 2.0mm or 3.0mm thick pre-galvanised sheet or aluminium, depending on application and budget.
All the gutters should last more than 15-20 years subject to quality of installation and maintenance periods. The lifespan of the gutters can be greatly increased by the application of a bitumen paint inside the gutter, particularly at any joints.
We can supply gutter outlets, hoppers, downpipes, swannecks, brackets etc to complete your rainwater system. Everything we manufacture is bespoke so please contact us with your requirements and we will be happy to talk through your options.
