Since UK records began in 1910, seven of the wettest years have been recorded in the past two decades, peaking just below 1350mm in 2000 and 2012.

MetOffice data shows only two other years where UK annual rainfall came within 100mm of this, in the late 1920s and early 1950s. With such extreme weather cycles becoming normal, the UK building industry is having to adapt and use fit-for-purpose rainwater products.

Low maintenance building products manufacturer, Kalsi Group, offers builders, contractors and installers ultimate flexibility in tackling these challenging weather conditions with its supply of robust rainwater and drainage solutions. Homeowners, landlords and residents can also benefit from high-quality, high-capacity rainwater systems, as large volumes of rainwater and snowmelt can damage homes and properties.

With 10 rainwater systems, the Kalsi Aquaflow range suits all applications and building types including domestic, commercial and industrial. Colour and finish options include black, white, grey, brown, light oak and cast-effect. For details of the complete Aquaflow range visit

With investment in manufacturing tooling, many of the Kalsi rainwater gutter profiles are co-extruded with colour coded interiors. This allows the finished product to retain a high gloss finish, it has greater weathering performance and provides a consistent colour match to the fittings.

All Kalsi profiles are manufactured to BS EN 607:2004 (gutters and fittings), BS EN 12200-1:2000 and BS EN 1329-1:2000 (downpipes and fittings) and BS EN 1462:2004 (gutter brackets); within a quality management system that meets the requirements of BS EN ISO 9001:2008.

Kalsi ensures complete peace of mind with the testing and assessment of its products, securing British Board of Agrément (BBA) certification and Kitemarks across its ranges.

All Kalsi Group products are readily available from a network of stockists across the UK and Ireland. The Birmingham-based business is a National Merchant Buying Society (NMBS) supplier and member of the Builders Merchant Federation (BMF).

For details of the complete Kalsi Aquaflow range visit or contact a member of the team on 0121 693 0373 or email

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