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Drainage

Drainage moves surface water away from an area. Drainage products from sump units, gratings, couplings, end caps and much more; Howarth have everything you need to complete your drainage system. 

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    Cascade Rainwater 68mm Lug Fixing Pack Black 205 x 275 x 390mm

    68mm or 75mm Round Plastic Cast Iron Style Lug Fixing Packs to perfectly complement the classic black colour of our Cascade cast iron effect rainwater system. Complete the look by removing ill matching unsightly fixing kits for your new stylish gutters...
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    Brett Martin Rainwater 114mm Squarestyle 135' Gutter Angle Black 120 x 120 x 79mm

    Brett Martin Rainwater 114mm Squarestyle 135' Gutter Angle Black 120 x 120 x 79mm is a quick & easy product to Install due to it's lightweight and durable nature. A range of quality uPVC Rainwater gutter and downpipe systems are suitable for both new...
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    Brett Martin Rainwater 65mm Square-Round Adaptor Black 60 x 65 x 65mm

    Brett Martin Rainwater 65mm Square-Round Adaptor Black 60 x 65 x 65mm is a quick & easy product to Install due to it's lightweight and durable nature. A range of quality uPVC Rainwater gutter and downpipe systems are suitable for both new build and...
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    Brett Martin Rainwater 68mm Round Downpipe 112.5' Branch Black 173 x 115 x 73mm

    Brett Martin Rainwater 68mm Round Downpipe 112.5' Branch Black 173 x 115 x 73mm is a quick & easy product to Install due to it's lightweight and durable nature. A range of quality uPVC Rainwater gutter and downpipe systems are suitable for both new build...
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    Brett Martin Rainwater 68mm Round Downpipe Connector Black 105 x 73 x 73mm

    Brett Martin Rainwater 68mm Round Downpipe Connector Black 105 x 73 x 73mm is a quick & easy product to Install due to it's lightweight and durable nature. Compatible with Brett Martin's 68mm round downpipe and used to join pipe lengths. All Brett Martin...
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    Cascade Rainwater 112mm Roundstyle Cast Iron Effect Running Outlet Black 194 x 135 x 130mm

    Cascade Rainwater 112mm Roundstyle Cast Iron Effect Running Outlet Black 194 x 135 x 130mm is a quick & easy product to Install due to it's lightweight and durable nature. The design of the 112mm running outlet allows it to be converted into a stopend...
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    Cascade Rainwater 112mm Roundstyle Cast Iron Effect Union Bracket Black 60 x 135 x 84mm

    Cascade Rainwater 112mm Roundstyle Cast Iron Effect Union Bracket Black 60 x 135 x 84mm is a quick & easy product to Install due to it's lightweight and durable nature. Used to join two lengths of gutter together. It features integral seals to ensure...
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    Cascade Rainwater 65mm Square Cast Iron Effect Socketed Downpipe & Lugs Black 2500 x 65 x 65mm

    Cascade Rainwater 65mm Square Cast Iron Effect Socketed Downpipe & Lugs Black 2500 x 65 x 65mm is a quick & easy product to Install due to it's lightweight and durable nature. Gloss effect uPVC 65mm square downpipe compatible with Brett Martin's 106mm...
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    Cascade Rainwater 68mm Round Cast Iron Effect 115mm Offset Black 240 x 183 x 70mm

    Cascade Rainwater 68mm Round Cast Iron Effect 115mm Offset Black 240 x 183 x 70mm is a quick & easy product to Install due to it's lightweight and durable nature. A range of quality uPVC Rainwater gutter and downpipe systems are suitable for both new...
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    Cascade Rainwater 68mm Round Cast Iron Effect Shoe & Lugs Black 140 x 92 x 73mm

    Cascade Rainwater 68mm Round Cast Iron Effect Shoe & Lugs Black 140 x 92 x 73mm is a quick & easy product to Install due to it's lightweight and durable nature. Fits to the base of the 68mm cast iron effect round downpipe to direct rainwater into the...
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    Brett Martin Rainwater 106mm Prostyle External 90' Angle Black 165 x 165 x 79mm

    Brett Martin Rainwater 106mm Prostyle External 90' Angle Black 165 x 165 x 79mm is a quick & easy product to Install due to it's lightweight and durable nature. A range of quality uPVC Rainwater gutter and downpipe systems are suitable for both new build...
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    Brett Martin Rainwater 106mm Prostyle Gutter Anthracite Grey 4000 x 114 x 62mm

    Brett Martin Rainwater 106mm Prostyle Gutter Anthracite Grey 4000 x 114 x 62mm is a quick & easy product to Install due to it's lightweight and durable nature. This modern and contemporary Prostyle gutter measures 106mm across and is ideal for bungalows...
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    Brett Martin Rainwater 106mm Prostyle Gutter Black 4000 x 114 x 62mm

    Brett Martin Rainwater 106mm Prostyle Gutter Black 4000 x 114 x 62mm is a quick & easy product to Install due to it's lightweight and durable nature. This modern and contemporary Prostyle gutter measures 106mm across and is ideal for bungalows and...
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    Brett Martin Rainwater 106mm Prostyle Left Hand External Stopend Brown 50 x 135 x 79mm

    Brett Martin Rainwater 106mm Prostyle Left Hand External Stopend Brown 50 x 135 x 79mm is a quick & easy product to Install due to it's lightweight and durable nature. A range of quality uPVC Rainwater gutter and downpipe systems are suitable for both...
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    Brett Martin Rainwater 106mm Prostyle Running Outlet Brown 179 x 135 x 130mm

    Brett Martin Rainwater 106mm Prostyle Running Outlet Brown 179 x 135 x 130mm is a quick & easy product to Install due to it's lightweight and durable nature. A range of quality uPVC Rainwater gutter and downpipe systems are suitable for both new build...
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    Brett Martin Rainwater 112mm Roundstyle 135' Angle Gutter Black 165 x 165 x 84mm

    Designed to allow the continuation of the 112mm Roundstyle gutter system at 135' right angles. It features rubber seals and integral clips at both sides for fixing to the gutter. All Brett Martin products are manufactured under a quality management...
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    Brett Martin Rainwater 112mm Roundstyle 90' Angle Gutter Black 170 x 170 x 84mm

    Brett Martin Rainwater 112mm Roundstyle 90' Angle Gutter Black 170 x 170 x 84mm is a quick & easy product to Install due to it's lightweight and durable nature. Designed to allow the continuation of the 112mm Roundstyle gutter system at 90' right angles...
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    Brett Martin Rainwater 112mm Roundstyle Cast Iron Effect Gutter Anthracite 4000 x 112 x 51mm

    Brett Martin Rainwater 112mm Roundstyle Cast Iron Effect Gutter Anthracite 4000 x 112 x 51mm is a quick & easy product to Install due to it's lightweight and durable nature. This classic 112mm roundstyle gutter is ideal for a range of single and...
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    Brett Martin Rainwater 112mm Roundstyle Cast Iron Effect Gutter Arctic White 4000 x 112 x 51mm

    Brett Martin Rainwater 112mm Roundstyle Cast Iron Effect Gutter Arctic White 4000 x 112 x 51mm is a quick & easy product to Install due to it's lightweight and durable nature. This classic 112mm roundstyle gutter is ideal for a range of single and...
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    Brett Martin Rainwater 112mm Roundstyle Cast Iron Effect Gutter Black 4000 x 112 x 51mm

    Brett Martin Rainwater 112mm Roundstyle Cast Iron Effect Gutter Black 4000 x 112 x 51mm is a quick & easy product to Install due to it's lightweight and durable nature. This classic 112mm roundstyle gutter is ideal for a range of single and multi-storey...
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    Brett Martin Rainwater 112mm Roundstyle Gutter Arctic White 2000 x 112 x 51mm

    Brett Martin Rainwater 112mm Roundstyle Gutter Arctic White 2000 x 112 x 51mm is a quick & easy product to Install due to it's lightweight and durable nature. This classic 112mm roundstyle gutter is ideal for a range of single and multi-storey dwellings...
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    Brett Martin Rainwater 112mm Roundstyle Gutter Black 2000 x 112 x 51mm

    Brett Martin Rainwater 112mm Roundstyle Gutter Black 2000 x 112 x 51mm is a quick & easy product to Install due to it's lightweight and durable nature. This classic 112mm roundstyle gutter is ideal for a range of single and multi-storey dwellings and is...
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    Brett Martin Rainwater 112mm Roundstyle Gutter Support Bracket Arctic White 45 x 135 x 75mm

    Brett Martin Rainwater 112mm Roundstyle Gutter Support Bracket Arctic White 45 x 135 x 75mm is a quick & easy product to Install due to it's lightweight and durable nature. This uPVC gutter clip is designed to hold the 112mm Roundstyle gutter in place...
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    Brett Martin Rainwater 112mm Roundstyle Gutter Support Bracket Black 45 x 135 x 75mm

    Brett Martin Rainwater 112mm Roundstyle Gutter Support Bracket Black 45 x 135 x 75mm is a quick & easy product to Install due to it's lightweight and durable nature. This uPVC gutter clip is designed to hold the 112mm Roundstyle gutter in place. It...

Drainage

The drainage of rainwater is significantly important when starting a construction project, as without any efficient drainage we would be prone to increased flooding, which could ultimately cause problems for buildings and the land itself.

Howarth Timber & Building Supplies works closely with ACO to provide solutions for surface water control, and our plastic drainage systems are lightweight and easy to use while offering flexibility and strength.

Our rainwater plastic plumbing systems are designed to collect and move rainwater to either allow for harvesting (ideal for watering the garden) or direct it into the main drainage system. This is especially important to do around buildings to prevent damage caused by a build-up of water. 

If you are interested in purchasing any drainage pipes or products, or are just seeking further advice, please contact your local friendly Howarth branch.

How to guides


Residential drainage solutions

Let’s look at the features to consider when installing residential water management solutions…


A Class Apart: Drainage Load Classes

A class apart: all you need to know when it comes to drainage.