Shower Mixer Valve Repair
Shower Mixer Valve Repair
Temperature swinging hot to cold, a stiff control or a shower head that keeps dribbling after you turn it off all point at the mixer valve cartridge behind the wall.
About this service
Shower Mixer Valve Repair in South West London, done properly the first time
Thermostatic cartridges scale up and stick, which is why a shower suddenly runs cold or refuses to reach temperature. We identify the valve brand, source the correct cartridge and service the valve body, filters and check valves at the same time — the filters are blocked far more often than people expect.
Where a valve is obsolete or the body is corroded we replace it, matching the existing plate and pipe centres wherever possible so there's no tiling work. We cover Kingston upon Thames, New Kingston upon Thames, Putney, Richmond, Surbiton and the wider South West London area.
Why Maxfix
Why choose Maxfix for shower mixer valve repair
Premium workmanship, fixed pricing and a service experience built around you.
Thermostatic and manual cartridges identified and sourced
Inlet filters and check valves cleaned as part of the job
Replacement matched to existing pipe centres to avoid re-tiling
Temperature re-calibrated and tested before handover
12-month guarantee on parts and labour
How it works
A calm, four-step process
From the first call to a tidy handover — no surprises, no jargon, no mess.
Get in touch
Call us or send a quick enquiry — we'll respond within an hour during working hours.
Free survey & quote
An engineer assesses the work and gives you a clear, written, fixed-price quote.
Book a date that suits you
Choose a slot that fits around your schedule — we work evenings and weekends.
Work completed cleanly
Uniformed engineers carry out the work, tidy up fully and walk you through everything before leaving.
Get a fast quote for shower mixer valve repair
Free, no-obligation quotes. Most calls answered within 30 seconds.
Trusted experts
Why choose Maxfix
Gas Safe Registered
Every engineer registered & ID-checked
Manufacturer Accredited [to be confirmed]
[accreditations to be confirmed]
Open 24 Hours, Every Day
Call any time — including nights and weekends
Fixed Price, Always
Agreed before we start — no hourly creep
Frequently asked
Your questions, answered
Why does my shower go cold when a tap is used?
Either a failed thermostatic cartridge or low, unbalanced pressure. We test both — sometimes the real fix is a shower pump or pressure correction rather than a new valve.
Can a shower valve be repaired or must it be replaced?
Most branded valves can be repaired with a new cartridge and clean. Replacement is only needed when the body is corroded or parts are discontinued.
Will you have to remove tiles?
Usually not. Concealed valves are serviced through the face plate, and replacements are matched to the existing pipe centres wherever possible.
The shower drips after turning off — is that the valve?
Yes, typically a worn cartridge seal or a failed check valve. Both are replaced during a standard repair visit.
Which areas of South West London do you cover for shower mixer valve repair?
We provide shower mixer valve repair across the whole of South West London, including Kingston upon Thames, Richmond, Wimbledon, Twickenham, Surbiton, Fulham, Putney, Teddington, New Malden, Molesey, Hounslow, Brentford, Isleworth, Long Ditton, Worcester Park, Roehampton, Raynes Park, Morden, Petersham, Motspur Park and the surrounding KT, TW and SW postcodes. Local engineers means short call-out times wherever you are.
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Ready when you are
Book shower mixer valve repair with a Gas Safe engineer — fixed pricing, open 24 hours.
Related repairs
Common bathroom & wc plumbing faults we fix in Kingston upon Thames and across South West London — plus the wider room-by-room services these repairs sit under.
Shower Mixer Valve Repair near you
Ready to book?
Book shower mixer valve repair today
Free quotes, fixed pricing and Gas Safe engineers across Kingston upon Thames, Richmond, Wimbledon, Twickenham and the rest of South West London.