Collection: Shower Kits

Almost every kit here is one of three things, and choosing right is more important than choosing a finish.

• Pressure-balance. Keeps the hot/cold ratio steady when someone flushes a toilet or starts the dishwasher. It stops you being scalded, but the temperature can still drift a little. One handle, one outlet. The right answer for a straightforward shower, and the least expensive.
• Thermostatic. Holds an actual set temperature rather than a ratio, and supports several outlets running at once. If you want a rain head and a handheld and body sprays, this is what makes that work — and it means the water is the same temperature every time you step in, without hunting for it.
• Thermostatic + pressure-balance. A combined valve with separate temperature and volume control. The largest group in this collection, and the usual choice for a well-specified main bathroom.

If you are replacing a single shower head with a single shower head, pressure-balance is enough. The moment a second outlet is involved, go thermostatic.

Kits are sold by the number of functions the valve can feed — commonly one, two or three. A diverter sends the water to one outlet at a time; a volume control lets you run two at once and set each independently. If the idea is a rain head overhead and a handheld for rinsing, you want to know which of those two you are buying, because a diverter cannot run both.

Retro-fit kits — Grohe's in particular — are designed to work with an existing rough-in, so an outdated shower can be modernised without tile work. Shower columns from Brizo do the same thing differently: the whole system mounts on the surface of the wall and feeds from the existing supply. Both are worth knowing about before you commit to demolition.

For everything else, check whether the kit includes the in-wall valve body or is trim-only. If it is trim-only, the valve is in Shower Rough-In Valves & Parts, and it must be the same manufacturer and series. If you are working with a shower that already exists, Shower Components & Trim Kits is the collection you want.

We are an authorized dealer for every brand on this page, so kits arrive with the manufacturer's full warranty and cartridges stay available a decade from now. Over 3,000 of our products ship free anywhere in Canada — look for the free-shipping badge on the product page. Everything ships free within Ontario, and any order over $3,000 ships free Canada-wide.

Not sure which valve your bathroom needs, or what your plumber has already roughed in? Send us the model number or a photo of the existing trim and we will confirm it before you order.

Also see: Shower Faucets & Trims · Shower Rough-In Valves & Parts · Components & Trim Kits · Steam Showers

What is included in a shower kit?
Typically the valve, the trim (handles and escutcheon), and a shower head — with a handheld and diverter on larger systems. Some kits are trim-only, with the in-wall valve ordered separately. The product page states what is included.

Thermostatic or pressure-balance — which do I need?
Pressure-balance is enough for a single shower head. Choose thermostatic if you are running more than one outlet at a time, or if you want the water to arrive at exactly the temperature you set every time.

Can I replace my shower without removing the tile?
Sometimes. Retro-fit kits are built to work with an existing rough-in, and surface-mounted shower columns feed from the existing supply. Send us a photo of what is there now and we will tell you whether either will work.

Can I use one brand's trim with another brand's valve?
No. Trim is engineered to a specific valve body from the same manufacturer, and often to a specific generation of it. Keep the whole system within one brand.

What does a diverter do?
It sends water to one outlet at a time — rain head or handheld, not both. If you want to run two outlets simultaneously, you need a volume control rather than a diverter.