Horsham · West Sussex
Bifold Doors in Horsham
Existing bifolds in Horsham dragging, dropping or refusing to lock? We can survey them and quote for adjustment or a new, made-to-measure set.
- RH12
- Guide from £3,595
Horsham: bifold doors
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.
Thresholds range from a raised weathered sill to a low or flush threshold for level access between floor and patio. Low thresholds rely on drainage outside, such as a slot drain, and some shelter from driving rain. The right choice depends on exposure, patio levels and how the doors are used.
In England, replacement doors with more than 60% of the internal face glazed should achieve a U-value of 1.4 W/m²K or a Doorset Energy Rating of band C under Approved Document L. New openings in extensions are assessed with the whole extension, and large glazed areas may need energy calculations.
Security on bifold doors comes from multi-point locks on the traffic door, shoot bolts top and bottom on the folding panels, internally glazed beads, anti-lift track design and hinges that cannot be removed from outside. Ask whether the system has been tested to PAS 24 and fit an anti-snap cylinder.
What you get
- Removal and disposal of any existing doors
- Toughened or laminated safety glass to every panel
- Fitting, levelling, adjusting and sealing the frame
- Made-to-measure bifold doorset in your chosen colour

Working in Horsham
- Postcodes covered
- RH12 and the surrounding area, including Crawley, Horley and Haywards Heath
- Coast
- Horsham is well inland, around 26 km from the nearest coast, so salt exposure is not usually a factor.
- Daylight and sun
- In Horsham the midwinter sun reaches about 16° above the horizon at noon, with roughly 7.7 hours of daylight, rising to about 62° and 16.3 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 Horsham
| 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
For shops and other non-domestic buildings in England, Approved Document M covers accessible entrances, and Approved Document K requires large areas of glass that people could walk into to carry manifestation (visible markings).
Specification choices
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.
Glass specification
Toughened low-E double glazing as standard, with triple glazing, laminated security glass or solar-control coatings available.
Bifold Doors in Horsham: questions
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.
What guarantee comes with bifold doors?
Manufacturer guarantees apply to the frames, coating, hardware, rollers and sealed units, and the terms are confirmed in writing. Cover for running gear can depend on regular cleaning and adjustment, so read the conditions. Guarantee terms for the installation are set out in writing with your quote, so you know what is covered before going ahead.
Bifold or sliding doors: which should I choose?
Bifold doors suit you if you want almost the whole opening clear in summer, because the panels fold and stack to the side. Sliding doors suit you if you want the fewest frames and the widest view when closed, because large panels glide past each other. Many people decide by how often they will fully open the doors.
How much do bifold doors cost?
The cost of bifold doors depends on the opening width and height, number of panels, material, colour, glass, threshold type and the condition of the opening. Aluminium usually costs more than uPVC, and wider sets, triple glazing and special finishes add more. See the guide prices for typical ranges; the written quote fixes the price for your specification.
Do you cover Horsham for bifold doors?
Yes. We can quote for bifold doors across Horsham and the surrounding West Sussex area, including postcode districts RH12, and nearby Crawley, Horley and Haywards Heath. 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 Horsham
Free survey for new glazing, clear guide prices and one point of contact for every glazing job.