Bifold doors · Kent
Triple glazed bifold doors in Swanley
From the first measure to the handover pack, we handle triple glazed bifold doors for homes in Swanley and the rest of Kent.
Slim, strong bifolds rated for heavy triple glass. Bifold doors are made of several panels hinged together that fold and slide to one or both sides, opening almost the full width of the opening.
Winter light and glass choice in Swanley
In Swanley, midday sun in late December sits around 15° high, with roughly 7 h 50 min of daylight. For windows facing north or shaded by neighbours, cutting heat loss matters more than solar gain; on open south-facing glass, ask about a higher solar-gain unit.
Guide prices in Swanley
| Guide | Supply and fit, inc VAT |
|---|---|
| 3-panel bifold about 2.4 m wide, aluminium | £4,295 – £5,395 |
| 4-panel bifold about 3.2 m wide, aluminium | £5,295 – £6,695 |
| 5-panel bifold about 4 m wide, aluminium | £6,295 – £7,895 |
Guide prices. Your written quote after the free survey fixes the price for the specification shown.
Rules for bifold doors in England
In England, replacement external doors must meet 1.4 W/m²K, or a door set energy rating of band C (more than 60% glazed) or band B (other doors). Replacement external doors fall under the same energy rules: a competent person scheme installer (such as FENSA or Certass) self-certifies the work and notifies the council, or a building control body approves it.
Planning: Replacing doors on a house is normally permitted development if the new ones look similar. Flats need planning permission for a change that alters their appearance, an Article 4 direction may mean permission is needed, and listed buildings need listed building consent.
How it works
We start with a survey, not a sales pitch: measurements, the structure above any bays, trickle-vent needs and escape windows. The quote that follows fixes the price, and anything unexpected on the day is agreed with you first.
- Every opening measured, including escape and vent needs
- Frames rated for the weight of triple glass
- Old windows removed and taken away
- Each opening closed up the same day
Questions from Swanley
Do I need building regulations for new bifolds?
Replacing an existing door is covered by the replacement rules. A new or widened opening is structural work that needs building control approval.
How much are triple glazed bifold doors?
Our guide starts at £4,295 fitted for a 3-panel aluminium bifold about 2.4 m wide and £6,295 for 5 panels, inc VAT.
How long does it take to get triple glazed bifold doors fitted in Swanley?
After the survey, typical manufacture time is 5 to 8 weeks, and a door is usually fitted in a day.
Do you fit triple glazed bifold doors in Swanley?
Yes. We arrange surveys and fitting in Swanley and across Kent. Send your postcode and the windows or doors you want replaced, and we will book a free survey.
Nearby
Nearby towns on our list include Bexley (5 km), Dartford (6 km), Welling (9 km) and Eltham (10 km).
Other products in Swanley
- uPVC windows
- Aluminium windows
- Timber windows
- Alu-clad timber windows
- Casement windows
- Flush casement windows
- Tilt and turn windows
- Sash windows
- Bay and bow windows
- Fixed and picture windows
- Composite front doors
- French doors
- Sliding patio doors
- Glass-only replacement
- Acoustic triple glazing
- Security glazing
- Whole-house replacement
- New builds and self-builds
- Period homes and conservation areas
- Flats and apartments
- Passivhaus and EnerPHit
Bifold doors in Swanley: book your free survey
Written quote fixed for the specification, after a free survey. Building Regulations sign-off by a competent person scheme installer or building control, as the law requires in England.