Tonbridge · Kent
Bifold Doors in Tonbridge
Existing bifolds in Tonbridge dragging, dropping or refusing to lock? We can survey them and quote for adjustment or a new, made-to-measure set.
- TN9
- TN10
- TN11
- Guide from £3,595
Bifold doors in Tonbridge
Creating a new bifold opening in an external wall is structural work that needs building regulations approval and a correctly sized lintel or steel beam. Replacing existing doors in the same opening is simpler. Planning permission may also be needed for new openings in listed buildings, flats or conservation areas.
Bifold doors take longer to manufacture than standard doors because each set is made to the opening and coated to order. Fitting a typical set usually takes one to two days, depending on width, removal of old doors and any making good to plaster, flooring and the patio outside.
Bifold door tracks need keeping clean: vacuum or brush grit from the bottom track and drainage slots regularly, wipe frames with mild soapy water and lightly lubricate the locking points. Panels that drag or catch usually need adjustment at the hinges or rollers, which a glazier can carry out.
Bifold door panels have wider frames where they meet than a sliding door, because each panel needs its own frame and hinges. A five-panel set shows four vertical sightlines when closed. If the view matters more than a fully open wall, a sliding door may suit better, so compare both.
What a typical job includes
- Toughened or laminated safety glass to every panel
- Made-to-measure bifold doorset in your chosen colour
- Written guarantee terms and advice on building regulations sign-off
- Fitting, levelling, adjusting and sealing the frame

Working in Tonbridge
- Postcodes covered
- TN9, TN10, TN11 and the surrounding area, including Tunbridge Wells, Sevenoaks and Crowborough
- Coast
- Tonbridge is well inland, around 29 km from the nearest coast, so salt exposure is not usually a factor.
- Daylight and sun
- In Tonbridge 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 Tonbridge
| 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
Approved Document Q applies to new homes in England, where doors and windows are expected to meet PAS 24 or an equivalent standard. It does not apply to replacements in existing homes, but PAS 24 products are still a sensible choice.
Choosing your bifold doors
Integrated blinds
Blinds sealed between the panes of each unit, controlled by a magnetic slider, so they never need dusting or catch on folding.
Low or flush threshold
A low-profile track for near level access between inside and out, paired with drainage outside and some shelter.
Timber bifolds
Engineered hardwood or softwood panels for a natural finish, factory coated and needing periodic re-coating over their life.
Bifold Doors in Tonbridge: questions
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.
Should bifold doors open inwards or outwards?
Outward-opening bifold doors are more common because the stacked panels sit outside and leave the room clear. Inward opening suits balconies, raised decks or tight patios where outward panels would block the space. The direction also affects weather performance and furniture layout, so it is decided at survey with the room plan in mind.
Do bifold doors leak or let in draughts?
Well-made bifold doors fitted level and square should keep out wind and rain, but they rely on accurate installation, a sound lintel and working drainage. Leaks usually come from blocked track drainage, a flush threshold on an exposed elevation or panels that have dropped out of adjustment. Keeping the tracks clean prevents most problems.
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.
Do you cover Tonbridge for bifold doors?
Yes. We can quote for bifold doors across Tonbridge and the surrounding Kent area, including postcode districts TN9, TN10 and TN11, and nearby Tunbridge Wells, Sevenoaks and Crowborough. 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 Tonbridge
Free survey for new glazing, clear guide prices and one point of contact for every glazing job.