Inline patio doors move on a set of tracks from side to side and stay within the confines of the outer frame. Bifolding doors (www.cheapupvcbifolddoors.co.uk/how-much-do-upvc-bifold-doors-cost) use an accordion or concertina method to slide to the side
Why UPVC Doors?
There are a number of very good reasons to use UPVC for your patio new patio door.
- UPVC is energy efficient
- it’s a light weight material
- Hardly any maintenance will be needed