Bi-fold and patio doors in Selly Oak

Before your bi-fold or patio doors in Selly Oak

This kind of work rarely needs planning permission, but it does have to comply with Building Regulations, and some parts must be certified by a registered installer or signed off by building control. In Selly Oak, building control is provided by Birmingham City Council or a registered building control approver (formerly an approved inspector).

With a traffic door on a bi-fold set, you don't have to open every panel to step outside.
Widening an opening needs a structural engineer's design and building control approval.
A flush threshold needs the outside ground set lower, with drainage in front of the door.

Postcode district: B29
Planning and building control: Birmingham City Council
From our West Bromwich base: 6 miles

Which options suit homes in Selly Oak?

Sliding patio doors

Two or more large panels slide past each other on a track, so nothing swings into the room or onto the patio. Sliders give the biggest uninterrupted panes and the narrowest frames, which makes them a good choice where the view matters more than opening the whole wall. Aluminium sliders also suit wide openings.

Widening an opening

Turning a window into doors, or making an opening wider, means cutting the wall and fitting a new lintel or steel beam sized by a structural engineer. Building control must approve the structural work. We organise the calculations, temporary supports, steel and making good, and show these costs on their own lines in your quote.

Bi-fold and patio doors prices in Selly Oak

Expect to budget between £1,200 and £8,500 per doorset in Selly Oak. Three-panel aluminium bi-fold, about 2.4 m wide, in an existing opening: typically £3,200–£4,800 per doorset.

Guide prices for bi-fold and patio doors
Option	Guide price	Good to know
uPVC French or sliding doors	£1,200 – £2,400 per doorset	Openings up to about 1.8 m
Three-panel aluminium bi-fold	£3,000 – £5,000 per doorset	Openings of about 2.4–3 m
Four- or five-panel aluminium bi-fold	£4,800 – £8,500 per doorset	Openings of about 3.6–4.8 m

Guide ranges include VAT where it applies. A free survey turns this guide into a fixed, itemised price.

Bi-fold and patio doors in Selly Oak: common questions

Which is better, bi-fold or sliding doors?

It depends on how you use the space. Bi-folds open almost the whole width, which suits summer living and wide openings onto a patio. Sliders have fewer, larger panes and slimmer frames, so they give a better view when closed and never take up room when open. Sliders are often the better pick where the doors stay shut for most of the year.

How do I book a survey in Selly Oak?

Send the form on this page, use the guide-price tool or call 0800 088 6248 free. We'll ask a few questions about your bi-fold or patio doors and arrange a time to visit.

What should I check before ordering?

Think about the floor level inside and out: a flush threshold needs the patio set lower, with drainage at the door. Decide which side the panels should stack and where the everyday traffic door goes, keeping furniture in mind. If the doors face south or west, ask about solar control glass to keep the room cooler.

Who approves bi-fold and patio doors in Selly Oak?

You won't usually need planning permission, but the work must meet Building Regulations. Building control in Selly Oak is provided by Birmingham City Council or a registered building control approver, and some work is self-certified by registered installers.

Bi-fold and patio doors near Selly Oak

Other work we do in Selly Oak

Not sure whether bi-folds or sliders suit your room? We'll talk it through on site in Selly Oak, with no obligation.