Caterham · Surrey
Bifold Doors in Caterham
Homeowners in Caterham can get a written bifold door quote that fixes the price for the panels, glass, threshold, colour and locks shown.
- CR3
- CR6
- RH9
- Guide from £3,595
Aluminium bifold doors in Caterham: what to know
Bifold doors run on rollers along a track, either top-hung with the weight carried by the head or bottom-rolling with the weight on the threshold. Top-hung systems depend on a strong, stiff lintel or steel above, so the glazier checks support before ordering, because sagging heads cause doors to bind.
Bifold doors are glazed down to floor level, so every pane needs safety glass. In England, Approved Document K treats glazing in doors within 1500mm of the floor as a critical location. Units are usually toughened, with laminated glass added where extra security or protection against falls is wanted.
The price of bifold doors depends on overall width and height, the number of panels, material and profile system, colour, glass specification, threshold type and the condition of the opening. Wide or very tall sets and triple glazing add cost. See the guide prices for typical ranges; the written quote fixes your figure.
The number of panels sets how the doors open. Odd numbers, such as three or five panels, usually include a traffic door that opens on its own for everyday use. Even numbers can split to both sides. Panels can fold inwards or outwards, and outward folding keeps the room clear.
Included as standard
- Survey of the opening, support above and floor levels
- Fitting, levelling, adjusting and sealing the frame
- Written guarantee terms and advice on building regulations sign-off
- Removal and disposal of any existing doors

Caterham at a glance
- Postcodes covered
- CR3, CR6, RH9 and the surrounding area, including Coulsdon, Purley and Redhill
- Coast
- Caterham is well inland, around 36 km from the nearest coast, so salt exposure is not usually a factor.
- Daylight and sun
- In Caterham the midwinter sun reaches about 15° above the horizon at noon, with roughly 7.6 hours of daylight, rising to about 62° and 16.4 hours in midsummer. A wide bifold opening on a south or west-facing wall brings in strong sun and can overheat a room, so solar-control glass or integral blinds may help. North-facing bifolds benefit from high light-transmission low-E glass to make the most of winter daylight.
- Access and setting
- Rural gardens often slope or sit lower than the floor, so threshold height and drainage need careful planning. Exposed open sites benefit from stiffer aluminium systems, raised thresholds and outward-opening doors that seal against the wind.
- Rules in England
- Approved Document K requires safety glass in critical locations in England: glazing in doors and in side panels within 300 mm of a door, up to 1500 mm above floor level, and any glazing in walls or partitions up to 800 mm above floor level.
Guide prices in Caterham
| Typical job | Guide price inc VAT |
|---|---|
| Aluminium bifold, 2400 mm wide | £4,295 – £5,495 |
| Aluminium bifold, 3000 mm wide | £5,095 – £6,595 |
| Aluminium bifold, 4800 mm wide | £7,495 – £9,595 |
| uPVC bifold, 3000 mm wide | £3,595 – £4,595 |
Get a guide price for your size
Listed buildings in England need listed building consent for most changes to historic windows or glass, and conservation areas can restrict changes visible from the street. Speak to the council's conservation officer before ordering.
What you can choose
uPVC bifolds
A lower-cost option with bulkier frames, suited to smaller openings with fewer panels, available in white, grey and woodgrain foils.
Panel configuration
From two to seven or more panels, folding left, right or splitting both ways, with or without a separate traffic door.
Integrated blinds
Blinds sealed between the panes of each unit, controlled by a magnetic slider, so they never need dusting or catch on folding.
Bifold Doors in Caterham: questions
Can bifold doors have a level threshold?
Yes, most bifold systems offer a low or flush threshold for near level access between inside and out. It works well with a drainage channel outside and some shelter from wind-driven rain, because a flush track is less weather resistant than a raised sill. The glazier checks the patio and floor levels and exposure at survey.
Can I fit bifold doors in a conservation area or a flat?
Possibly, but you may need permission first. Flats and maisonettes do not have the same permitted development rights as houses, and listed buildings need consent for significant works. Conservation areas and Article 4 directions can restrict changes visible from the street. Check with your council before ordering; the council can tell you what an application needs, and we can provide product details and specifications to support it.
Are bifold doors secure?
Good bifold doors are secure when the traffic door has a multi-point lock and anti-snap cylinder, the other panels have shoot bolts top and bottom, the glass is internally beaded and the hinges and track resist lifting. Ask whether the system has been tested to PAS 24, and consider laminated glass for ground-floor doors.
Do bifold doors need building regulations approval?
Yes. Fully glazed replacement doors like these are controlled fittings, and in England an installer registered with a competent person scheme can self-certify them, or building control approves the work. A new or widened opening is structural work and needs building control approval for the lintel or steel. Wales, Scotland and Northern Ireland set their own requirements.
Do you cover Caterham for bifold doors?
Yes. We can quote for bifold doors across Caterham and the surrounding Surrey area, including postcode districts CR3, CR6 and RH9, and nearby Coulsdon, Purley and Redhill. Start with your postcode on the quote form and a glazier will arrange a free survey before giving you a written quote.
Get a written quote in Caterham
Free survey for new glazing, clear guide prices and one point of contact for every glazing job.