Exposed shower valves are quick and easy to install. This is because the working parts are enclosed within the body of the valve and not hidden within the wall.
What’s more, an exposed shower valve can be thermostatically controlled, meaning they control the temperature safely and effectively. Alternatively, they can be manually controlled.
The latter is more cost-effective, but you may risk fluctuating temperatures when other taps are used around the home. This may not be suitable if you have young children.