How to Install a Thermostatic Mixer Shower | Top Trade Tips

Learn how to fit or replace a thermostatic mixer shower with this simple step-by-step guide. In this video we'll show you how to properly measure up, drill for fittings, and fully install a mixer shower.
The products in this video are provided by Bathroom Mountain, for more information please visit - www.bathroommountain.co.uk
0:00 - Introduction
0:22 - Products and Tools Required
1:07 - Fixing the Wall Covers
2:10 - Installing the Thermostatic Valve
3:38 - Measurements for Sliding Rail
6:20 - Fitting the Sliding Rail
7:44 - Attaching the Shower Head
8:28 - Mixer Shower Reveal and Outro
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[@kerryreilly6209]

Really clear and helpful - thank you!

[@MrandMrsDIY]

Thanks Kerry!

[@zallone7810]

Hi craig ,
Will be replacing mixer shower soon , you're video has been very helpful . Thank you .

[@MrandMrsDIY]

Great stuff! No problem, if you get stuck let us know!

[@stephenblair5236]

Aww man this is great, makes the job simple. I struggel with the placement of the upper shower support. surely this should be flipped 180 degrees so the allen key is mostly hidden, facing up and into the corner.

[@MrandMrsDIY]

Thanks mate, They do it like this way because of water getting onto the surface which could potentially lead to rust/other difficulties!

[@thomascoyne157]

Was fitting a mira shower on Sunday made a mistake trying to upgrade the fixing on the wall of the Mary shower that holds a copper pipe in place only had one screw hole per pipe so I bought a set from Amazon with Ford screw holes similar to the ones that you put on there but when I connected the base of the shower unit the pool was I want to dip towards the wall for the showerhead so I had to undo it all and put the mirror shower bits on his tender moments taken them Olive’s off but got there in the end.
Great volg 👍👍👍👍

[@MrandMrsDIY]

Great work

[@10dianet]

Hi, Our Biggest issue we have.. how do we ensure the accurate position of the drilling holes in the wet wall for the pipes behind it leading from the thermostat bar?🤷‍♀️When using plaster board we had numerous attempts several holes made to get it right …but at £150+a wet wall panel we don’t want any mistakes .. any helpful advice for an easy way to do this please . We plan to put up the wet wall tomorrow eek

[@MrandMrsDIY]

When you purchase a mix shower there should be template which has the sizers on that you hold to the wall to mark were each pipe will be fitted, or you can purchase a back plate that covers the wall and has the holes already in place for most mixer showers
Hope that helps

[@fistoffurystreetkingz2430]

How do you turn off the cold water? Usually the hot can be done from the combi boiler

[@MrandMrsDIY]

From the main house stop tap

[@LucidComposureUk]

What do you do about the exposed threads after you’ve tighten up the bar?
Is it normal to leave them showing?

[@MrandMrsDIY]

It is in most cases, you'll often see the threads at the rear

[@user-qm3dt1qe8p]

Any idea what brand/type of shower this? I need to replace exactly the same one.

[@MrandMrsDIY]

Hi Guy,
It was this one - www.bathroommountain.co.uk/galway-premium-matt-black-square-thermostatic-shower-set-23015?parent=V23014
Cheers

[@user-qm3dt1qe8p]

Great, thanks very much!

[@zeezee3194]

should the shower bar tight?
my currently moves but there are no leaks, does it need tightening up?
Thanks in advance

[@MrandMrsDIY]

Hi mate, yes it should be tight as it shouldn't move, I would contact a local plumber just to make sure! Cheers

[@hamid.yusefzai]

I have issue with shower thermostatice how do turn off the constant water temperature its on 38 but if i change it to 25 or less the water stops. Any help would be appreciated

[@MrandMrsDIY]

Hmm not sure, sounds like a problem that may require a local plumber to take a look

[@user-ne3dn5or2n]

Hi Craig,
I’m installing a very similar fixture. The issue I’m having is I get either very hot or very cold water. I have since discovered that the original plumber installation has the hot and cold pipes in the wall reversed. For this fixture I should have hot on the left and cold on the right, but the pipes in the wall are not that orientation. Any help would be appreciated. Do I need to rectify the pipe issue behind the wall to match what the fixture is indicating?
Thanks

[@MrandMrsDIY]

Yes I would fix the pipes before you mess around with the valves, or call a plumber who will sort it out for you!

[@Dovestonedipper]

Did you get get the hot and cold feed the wrong way round at 1:30 ?

[@MrandMrsDIY]

Nope!

[@Dovestonedipper]

@@MrandMrsDIY The mixer bar image at 2:30 would disagree, red dot is on the left blue right.

[@MrandMrsDIY]

Thanks, I better look closer @@Dovestonedipper

[@Adam.666.]

I am from India plis give me I pad😭

[@MrandMrsDIY]

Good luck