Thermostatic Mixing Valve servicing — annual, evidenced, healthcare-grade.
Annual TMV2 and TMV3 servicing, thermal disinfection, in-line strainer cleaning, calibration and component replacement — across NHS, care, schools and commercial estates. Asset registers, valve-by-valve evidence, no missing tickets.
TMV Servicing & Maintenance
TMVs blend hot and cold water to a safe temperature at the outlet — but they're also a Legionella risk in their own right. The blending chamber sits between 30–46°C, exactly where Legionella thrives, and a TMV that's failed open on the cold side delivers scald-risk water from the same outlet.
Annual TMV servicing to HTM 04-01 and BuildCert TMV2/3 is the standard — and on every service we strip, clean, replace the cartridge or seat as required, run a failsafe test, thermally disinfect the valve and outlet, and log it against the asset register.
We do this across NHS estates, care providers, schools and commercial sites — typically 50 to 5,000 valves at a time — with a per-valve evidence record that closes out the asset register cleanly every year.
Our Birmingham base means TMV servicing across Birmingham and the West Midlands is easy to schedule around clinical and operational demands — with UK-wide delivery for national estates.
When you need it
- Your TMV asset register hasn't been serviced in over 12 months
- You operate in healthcare (mandatory under HTM 04-01) or augmented care (more frequent cycle)
- A TMV has failed open or closed and you need investigation + replacement
- Outlet temperatures are reading outside the TMV2/3 envelope (typically 38–46°C)
- You don't have a TMV asset register and need one built from scratch
- An auditor or insurer has flagged missing TMV servicing evidence
What's included as standard.
A typical engagement covers every line below. Where your scope needs more — multi-site rollout, white-label delivery, framework KPIs — we build it on top of this baseline.
Asset Register
Build or verify your TMV asset register — location, type, manufacturer, model, install date, last service.
Annual Service
Strip, clean, descale, replace cartridge/O-rings/strainers per manufacturer schedule.
Failsafe Test
Cold supply isolation test — verify outlet temperature drops to safe within manufacturer time/temperature limits.
Thermal Disinfection
Thermal disinfection of valve and outlet at ≥ 60°C for prescribed contact time.
Temperature Verification
Pre and post-service outlet temperature recording — within TMV2/3 envelope.
Per-Valve Evidence
Photograph, asset tag, signed service card, asset register update — all in the digital portal.
The compliance map for tmv servicing.
Built around the sector's compliance picture.
From brief to audit-ready evidence in five steps.
Brief & Survey
Free site walk-through with a senior engineer — scope, plant, risk, gaps.
Quote & Scheme
Itemised quote plus written scheme of control, dosing logic and reporting cadence.
Mobilise
Risk assessments, method statements, HSE paperwork and induction — turnkey.
Deliver
Engineers on-site with digital reporting, photos, lab links and live PPM tracking.
Evidence
Certificates, logbooks and HSE-ready audit packs — issued within 48 hours.