We look after thermostatic mixing valves. That's the job.

What we do

TMVs are small, fiddly and easy to forget about until one sends out water that's too hot, or a resident complains the shower's gone cold. We spend our days on them: servicing and in-service testing, installing and replacing valves, and building asset registers so you know where every valve is and when it's next due.

Most of our work is for care homes, healthcare buildings, schools and nurseries, housing providers, hotels and leisure sites. You can read more about the sectors we work in.

How we work

We measure rather than guess. Every valve gets its supply and mixed temperatures recorded with a calibrated thermometer, a fail-safe test and a check of its strainers. If something needs more than a service, we explain why and agree the price before doing it. You get the readings, a certificate and an updated register after every visit. The step-by-step version is on our how it works page.

The guidance we work to

We follow the test method in Chapter 11 of the HTM 04-01 D 08 supplement and the operational guidance in HTM 04-01 Part B. We also work to HSE's ACOP L8 and HSG274 Part 2 for Legionella control, and HSE's guidance on hot water in health and social care. Where your site has its own written scheme or Water Safety Group requirements, those come first. Our HTM 04-01 and D 08 guide explains it all in plain English.

Where we work

We cover the whole of the UK. Being based in Chiswick means London and the Home Counties are home turf, and that's where we do most of our work. For sites further afield we plan visits so a trip covers as much as possible.

If you're only in London, our sister brand TMV Servicing London is set up just for the capital.

Get in touch

Ring us on 020 3633 6064 or use the quote form and tell us roughly what you've got. Our office is at The Lightbox G16, 111 Power Road, Chiswick, London W4 5PY.