Replacement power showers
When a power shower finally gives up, the good news is that replacing it is usually far simpler than a first-time install: the plumbing and the electrical supply are already in place.
The job is to choose a unit that lines up with what is already on the wall, so you minimise re-plumbing and re-wiring. That is easiest with a like-for-like replacement, matched to your old model. This page helps you decide whether to repair or replace, identify the unit you have, including legacy names like Galaxy, Showerforce and Aquastream, and pick a replacement that drops in with the least fuss.
Repair or replace?
Start by deciding whether the unit is worth saving. If the shower is otherwise sound and the failed part is still available, a spare is often the cheaper, quicker fix. If it is old, leaking internally, or the parts are no longer made, a replacement is usually the better long-term answer. Age matters too: a unit that has worked hard for ten years or more may be near the end whatever you do, so putting money into it can be a false economy. As a rough steer: one simple, available part, repair; multiple faults, scarce parts or a tired old unit, replace.
To check whether your part is available before deciding, see power shower spares, and the spares and replacement guide weighs up repair versus replace in more detail (both linking when live). If you are replacing because the shower is simply old rather than broken, it is also a chance to upgrade, for example to a thermostatic model with a steadier temperature and a safety stop.
Identify your old model
Getting a like-for-like replacement starts with knowing exactly what you have. Work through these:
- Look for the brand and model on the badge on the front of the unit, often near the controls (for example Mira, Aqualisa Aquastream, Galaxy or Showerforce).
- Check the manual or any paperwork from when it was fitted, which usually names the model and its specification.
- If there is no badge, note the shape, the control layout and where the pipes and cable enter the unit, and photograph it.
- Search the brand and model, or ask our team, to find the current direct replacement or the nearest equivalent.
Legacy lines such as Galaxy, Showerforce and Aqualisa Aquastream are exactly the ones people most often need to replace, so there is usually a clear modern equivalent. If yours is discontinued, the aim is a current unit with a similar pipe and cable entry. Our team can help match an old model to its nearest current replacement if you are not sure, so it is worth asking before you buy rather than guessing.
Like-for-like: what fits, what changes
A like-for-like replacement is chosen to match the connections you already have, so the existing pipework and cable can often be reused with minimal change. What you are matching is the position of the water inlets and the electrical entry, and roughly the size, so the new unit covers the same footprint on the wall. What may change is the look and the controls, since a modern replacement can be smarter or add thermostatic control, and small adjustments to pipe or cable routing are sometimes needed. The electrical connection should always be made by a qualified electrician to meet bathroom wiring regulations, even on a straight swap.
Matching the footprint matters for more than neatness. If the new unit covers a slightly different area, you may be left with marks or holes where the old one sat, so a replacement of similar size saves making good the tiles behind. Where the inlets line up closely, a competent plumber can often complete the plumbing side quickly, with the electrician making the final connection. The closer the match, the less disruption, which is the whole point of choosing like-for-like rather than a completely different model.
| Usually reused | May need adjusting |
|---|---|
| Existing hot and cold pipework | Minor pipe routing to meet the new inlets |
| The existing electrical supply | Final connection (by a qualified electrician) |
| The same wall position | The look and controls (often an upgrade) |
Replacement power shower FAQs
Should I repair or replace my power shower?
If parts are available and the unit is sound, a spare may be cheaper. If it is old, leaking internally or parts are scarce, a like-for-like replacement is usually the better long-term fix. The spares and replacement guide helps you weigh it up (linking when live).
How do I find a like-for-like power shower replacement?
Identify your old model from the badge, the manual or the unit's shape, then match a current model with a similar pipe and cable entry to minimise re-plumbing and re-wiring. Our team can help match a discontinued unit to its nearest current equivalent.
Can I replace a Galaxy or Showerforce power shower?
Usually yes. These legacy lines are among the most commonly replaced, so there is normally a current unit that fits a similar position. Identify your exact model first, then choose the closest modern equivalent to keep the work to a minimum.
Do I need an electrician to replace a power shower?
Yes, for the electrical connection, even on a like-for-like swap. The plumbing can often be reused, but the final electrical connection should be made by a qualified electrician to meet the regulations for electrical work in a bathroom.
Shop replacement power showers for a like-for-like fit, or read the spares and replacement guide first. Free UK delivery, price match and 365-day returns. Big brands, small prices.