One handle, two hinge positions, and a set of practical consequences worth understanding before you order.
Tilt and turn is an operation, not a style. The same window can be uPVC or aluminium, plain or foiled, double or triple glazed. What defines it is a geared handle that gives you two completely different openings from one sash.
Understanding what each position is for tells you very quickly whether it suits your rooms, because tilt and turn is superb in some places and genuinely the wrong answer in others.
Turn the handle to horizontal and the sash swings inwards on side hinges, like a door into the room. Turn it further, usually to vertical, and the gearing switches the pivot so the sash tilts inwards from the top instead, held at the bottom.
The order matters. Always return the handle to the closed position before switching between the two, because forcing the change mid travel is what damages the gearing on a badly used window.
In the fully open turn position you can reach the entire outer face of the glass while standing in the room. On a first or second floor, or a flat with no safe external access, that turns window cleaning from a paid job into a ten minute one.
It is the same reason they are so common in apartment blocks across Europe. Anything above ladder height and the maintenance argument makes the decision on its own.
The tilt position gives a controlled gap at the top of the window. Warm moist air rises, so venting at high level clears bathroom and bedroom moisture more effectively than cracking a window open at the side.
It also means you can leave ventilation on overnight or in light rain without an open sash swinging about, which is where a lot of casement windows get left shut and the condensation problem never gets solved.
The tilt gap sits at high level, so it is the position most families leave the window in. Where you want certainty, removable and key lockable handles stop the turn function being used at all.
Restrictors are available too, but the honest point is that tilt itself is the safety feature: the sash is retained on hardware at the bottom and the opening is nowhere near floor level.
The sash comes into the room, so anywhere the internal space in front of the window is occupied is a poor fit. Kitchen worktops, a sink run, a desk pushed under the cill, blinds and heavy curtains all fight it.
The other case is a front elevation in a conservation area or on a listed building, where the modern operation and sightlines may not be accepted. Rear and side elevations are often a different conversation.
We will walk the house with you, say which openings suit it and which do not, and price it either way.
In the turn position the full sash opens, so the clear opening is generally generous. Whether a specific window meets escape requirements depends on the opening size and cill height, which we check on survey rather than assume.
The hardware is engineered for heavier sashes, which is why triple glazed and acoustic units are common in this style. Like any geared window it benefits from an annual clean and a spot of lubricant on the mechanism.
Yes, but they need to be integral to the glazing unit or fitted to the sash rather than the reveal, otherwise the sash cannot open inwards. Tell us at survey and we will specify accordingly.
The compression seal around the sash and the ability to take thicker laminated acoustic glass both help. It is the glass specification that does most of the work, and we will quote the acoustic option separately so you can see what it costs.