Profile: Griffin Windows Ltd specializes in the manufacture & supply PVCu windows, doors and conservatories. Our windows include casement, tilt & turn, vertical sliders and cavity closers. Our tilt & turn window features a dual opening mechanism for security, safety and practicality. By twisting the handle 90 degrees the vent tilts inwards to provide gentle ventilation, when turned to 180 the side hinges engage to enable the window to be fully opened for ease of cleaning and fire escape. They can be coupled to produce bay and bow windows as well as used in conservatories. All of our tilt and turn windows are produced from 100 percent calcium organic material. Custom conservatories features white locking handles, pilkington K glass, concealed drainage and 150mm cill.