Westco’s areas of expertise

At STH Westco, we provide merchants, plumbers, and heating installers with the products they need to service every job.

With an ever-growing range of over 5,500 product lines, we are responsible for bringing some of the world’s most iconic heating and plumbing parts to market. And we’re continually introducing new and improved products that meet the needs of our customers.

With many of our products BS, A-rated and WRAS approved, we’re proud of our reputation in the industry. In particular, we are renowned for four key areas of expertise.

Thermostatic and manual radiator valves

The valves and fittings in our highly acclaimed heating series range from stylish chrome TRVs to hardwearing everyday products which have become toolkit essentials for installers throughout the UK.

Our range includes our ever-popular Westherm TRV, which boasts an ergonomic, hand-friendly shaped head, neat vents, and easy-read controls. One of our best-selling products, the Westherm has a contemporary design that complements a wide range of radiators and is now available in Anthracite black.

See our full range of radiator valves here.


Our durable, high-performing valves include standard products for everyday plumbing and heating maintenance alongside a series of innovative vales designed explicitly for additional safety and efficiency.

See our full range of brassware products here.


At Westco, we invest a great deal of time and energy in developing and sourcing products that satisfy the most demanding plumbing requirements.

Manufactured to the highest standard, with many WRAS approved, our range includes several innovative fittings only available to Westco.

To meet the needs of busy installers, we also supply a carefully selected range of Pre-Packed Plumbing Parts, which have some of our most popular products.

See our full range of fittings here.

Taps, Mixers & Showers

Combining style with practicality, our market-leading products are designed, developed, and manufactured using the best materials available. We also apply stringent quality control standards to ensure outstanding reliability and the assurance of a long and robust working life.

With an exclusive range of taps for bathrooms and kitchens, the stunning Francis Pegler design solutions are stylish and functional.

Committed to energy efficiency, our tap range includes products that use the latest technologies, such as aeration or flow limitation, to reduce water consumption by 50% without impacting user comfort.

Ordering from Westco has never been easier.

All our products are available for immediate dispatch. In addition, with a pre-packaging plant on-site and accurate delivery updates, we provide an end-to-end nationwide distribution service for our customers.

Open from 8.30am till 5pm Monday to Friday, you can call us on 01942 603 351. We endeavour to offer a next day delivery service. Simply mark your request as ‘next day’ and communicate this to our sales office before 12.00pm.

On the end of the line to take your orders and answer any questions you might have, it has never been easier for you to get the great products you need, as and when you need them.

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