What a split door is good for, how it stays secure and how to choose between composite and uPVC.
Short answer: a stable door is split horizontally so the top half can open for air and light while the bottom half stays shut. It is most useful on kitchens, utility rooms and back doors in homes with children or pets, and a modern one locks as securely as a standard door because each half has its own multi-point lock.
The main decision after that is material. Composite and uPVC both work well; they differ in feel, weight and finish more than in function.
The appeal is simple: fresh air without an open doorway. Toddlers and dogs stay in, the kitchen stays ventilated, and you can talk to someone in the garden without leaving the room. They also add a cottage character that suits many older houses.
On the doors we fit, both halves lock independently with multi-point locking systems. When closed together they act as one door. When the top is open, the bottom half remains fully locked, which is what makes a stable door practical rather than just decorative.
A composite stable door has a solid timber core with a GRP skin. It feels heavier and more solid and holds a realistic grain texture. A uPVC stable door is lighter, low maintenance and comes in a range of colours. Both are available in timber-effect finishes.
Cottage-style designs with decorative glazing and period hardware are an option in either material if you want the traditional look to be more obvious.
Ask whether the bottom half has a letterbox or cat flap if you need one, because that affects the panel choice. Check the threshold height if anyone in the house uses a wheelchair or walking aid, and confirm which way each half opens so it clears worktops, radiators or a step outside.
A stable door is fitted much like any other external door, with a new frame, cill and weather seals. The difference is the extra hardware at the join between the halves, which needs setting so the two leaves line up and seal against each other when closed together.
Aftercare is light. Wipe the frame and panels with warm soapy water, keep the drainage slots in the cill clear and lubricate the locking points once or twice a year. If the halves start to catch, a small hinge adjustment usually puts them right. Our doors come with a 10-year guarantee, and we can advise on adjustments if the door drops over time.
We will measure your opening and send a fixed quote for composite or uPVC. Our doors come with a 10-year guarantee.
Not when both halves have their own multi-point lock, which is how we fit them. The bottom half stays locked even when the top is open.
Yes, although they are most often chosen for back and side doors where ventilation and keeping pets or children in matter most.
Composite has a solid timber core and GRP skin and feels heavier; uPVC is lighter, low maintenance and comes in a range of colours.
Yes. Glazed top halves, including decorative cottage-style glass, are a common choice to let more light into the room.