Specialist mechanical & systems
TMV diagnostics and repair
Thermostatic mixing valve testing, servicing and repair, with temperatures recorded for your compliance file.
What we do
Thermostatic mixing valves protect occupants from scalding by blending hot and cold water to a safe outlet temperature. They need periodic testing and servicing to prove they are still failing safe.
We test outlet temperatures, check the fail safe shut off, descale and service the valve, and replace cartridges or complete valves where performance has drifted. Results are recorded by outlet so the works stand up as evidence in a water safety file.
What is included
Typical scope on this trade.
- Outlet temperature testing
- Fail safe shut off checks
- Descaling and valve servicing
- Cartridge and valve replacement
- New TMV installation
- Results recorded by outlet location
Where it fits
Instructed in care settings, HMOs, student accommodation and any managed property with a water safety regime.
See all specialist mechanical & systemsHow it works
How a TMV service visit runs
- 1
Asset check: every valve is confirmed against the water safety log, with missing outlets added.
- 2
Temperature testing: hot, cold and blended outlet temperatures are measured and recorded per outlet.
- 3
Fail safe check: the cold supply is isolated to prove the valve shuts off the hot side.
- 4
Service and descale: strainers are cleaned, the valve is descaled and cartridges replaced where performance has drifted.
- 5
Re-test and record: post service temperatures are logged against each outlet reference.
- 6
Report: a per outlet record is issued for the water safety file, with failed valves quoted for replacement.
What to expect
Typical turnaround
A typical block of ten to twenty outlets is tested and serviced in a single visit. Failed valves can usually be replaced from van stock on the same day.
How pricing works
Priced per outlet on a schedule of rates for planned programmes, with replacement valves quoted individually once diagnosed.
Completion documents
- Per outlet temperature records before and after servicing
- Fail safe shut off result for every valve
- Cartridge and valve replacement log
- Updated asset register for the water safety file
Common questions
Frequently asked questions
What clients say
5.0 on Google from 230 reviews“Susanna is an absolute gem. She is incredibly efficient at getting everything booked and sorted quickly, and always keeps us in the loop. The maintenance teams are equally fantastic, the work is consistently completed to a high standard.”
Ask us to take a look.
Whatever's come up across your portfolio, a single repair or a full refurbishment programme, we'd welcome the chance to quote. Site surveys and quotes are free, so there's no cost or commitment in simply asking us to take a look.