West Siphonics Ltd · Company SC270582
Active, accounts up to date·subcontractor & consultant·Head office Newmilns
West Siphonics Systems Ltd are specialists in siphonic roof drainage and rainwater management, offering a comprehensive one-stop solution for design, manufacture, installation, project management, and maintenance. With a wealth of experience spanning over 50 years, the team possesses in-depth knowledge of the siphonic roof drainage industry.
The company operates the UK's largest Siphonic HDPE fabricating facility in Rotherham, South Yorkshire, setting industry standards in quality, training, innovation, and product development. West Siphonics' systems are designed using advanced analytical software and comply with BS EN 12056-3:2000 and BS 8490, offering significant cost savings over conventional gravity-based systems.
Solihull
This impressive site contains a 1,000,000 square foot warehouse and a multi-storey staff car park. The main warehouse roof consists of 2 eaves gutters & 14 valley gutters, the roof is also hip ended. The total roof area is approximately 91,950 m2, based on the specified rainfall intensity and geographical location of the project, this equates to a staggering 5,300 litres of rainwater per second.
West Siphonics Systems were appointed by Winvic Construction to design, supply & install the Siphonic drainage to all 5 Units. This 238-acre development will be home to Jaguar Land Rover, making this the UK's largest single occupier logistics park.
Client · Winvic Construction
Castle Donington
Project Triathlon is plot No. 12 on the EMG (East Midlands Gateway) site in Castle Donington. The project consists of a 35m tall high bay warehouse and a 20m tall low bay warehouse.
Manchester Airport
ICON 2 is strategically located at Manchester Airport City in close proximity to the World Freight Terminal. The 260m long warehouse is drained via Primary downpipes located at one end of the building.
Amazon, McLaren, Jaguar Land Rover, Winvic Construction.
This profile was compiled from public records. Claim it to add the things buyers ask for:
West Siphonics are siphonic roof drainage and rainwater management specialists. We provide a one-stop solution for the design, manufacture, installation, project management and maintenance of siphonic rainwater drainage systems. Their listed services include Drainage and Design & build.
West Siphonics Systems Ltd is registered at 94 Brown Street, Newmilns, KA16 9BP, in Scotland.
West Siphonics Systems Ltd states that it works across Nationwide.
Accounts filed for the year to 2025 report 13 employees, which places the company in the 10-49 employees band.
West Siphonics Systems Ltd does not disclose turnover: UK small-company accounts are not required to. Based on headcount and trade debtors in its filed accounts, turnover is likely to fall between £830k and £2.2m. This is an estimate, not a filed figure.
Companies House lists West Siphonics Systems Ltd as active, with accounts most recently made up to 2025-09-30.
West Siphonics Systems Ltd displays Constructionline, Builder's Profile, CHAS, SSIP, ISO 14001 and ISO 9001 on its website.
West Siphonics Systems Ltd works in Industrial, Commercial and Public.
West Siphonics Systems Ltd was incorporated on 2004-07-12.
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