Bifold doors are glazed panels that fold and stack to one side to open up a wide gap, while sliding doors glide past each other on tracks; both connect a living space to the garden and bring in more daylight.
We arrange bifold or sliding doors for homeowners in Mitcham and the wider London. The job is planned, priced and managed by us and carried out by tradespeople engaged under our contract, so there is one agreement and one contact. On a typical home the work takes 1–2 days to fit into a ready opening, and guide pricing in London is £3,900–£10,500, VAT included.
- Guide price
- £3,900–£10,500 inc VAT
- Time on site
- 1–2 days to fit into a ready opening
- Postcodes
- CR4, SM4, SM5, SW16 and SW17
- Planning rules
- England
- Local area
- Greater London
- Survey
- Free, with a written quote
How much do bifold or sliding doors cost in Mitcham?
What will bifold or sliding doors cost in Mitcham? Our guide range is £3,900–£10,500 including VAT. That figure is adjusted for London, about 30% above the national guide, and is intended for planning a budget. A firm written price for your chosen specification follows a free survey at your home.
| Type of job | What it usually involves | Guide in Mitcham |
|---|---|---|
| uPVC sliding or French doors | Standard uPVC doors fitted into an existing opening of up to about 2m. | £1,950–£3,900 |
| 3m aluminium bifold | A three-panel aluminium bifold in a standard colour, fitted into a ready opening. | £4,600–£9,100 |
| Wide bifold or slimline slider | Openings of 4m or more and slim-frame doors, often with a new steel above. | £9,100–£18,000 |
The main things that change the figure:
- Width and height of the opening and number of panels
- Frame material: uPVC, standard aluminium or slimline aluminium
- Glazing upgrades such as solar control or triple glazing
- Threshold type, colour choice and built-in blinds
What do you get?
- Measured survey of the opening, lintel and floor levels
- Made-to-measure bifold, sliding or French doors in your chosen colour
- Toughened double glazing as standard, with solar control options
- Level or low threshold options to suit your patio
- Opening widened with a new lintel or steel where agreed
- Weather seals, cills and internal trims finished neatly
What are homes like around Mitcham?
London's housing is dominated by Victorian and Edwardian terraces, often in yellow London stock brick, with Georgian terraces in central districts and mansion blocks across many inner areas. Outer boroughs have large belts of interwar semis, and there are extensive post-war council estates. Many houses have been split into flats, and conservation areas are widespread.
Terraces suit side-return extensions and rear dormer loft conversions; interwar semis commonly take hip-to-gable lofts. Shared party walls, restricted parking and conservation rules often shape the plans and the programme.
Knowing the typical building types in London helps, but a survey of your own home in Mitcham is what decides the right approach to bifold or sliding doors.
Permissions for bifold or sliding doors in Mitcham
Planning law differs across the UK. For a home in Mitcham, it is the England rules below that count, and we check them with the council ahead of any quote.
Replacing windows and doors on a house is usually permitted development in England when the new ones look broadly similar to the old. Flats, listed buildings and homes covered by an Article 4 direction can need consent, and conservation areas may limit materials or styles.
Replacement windows and external doors must meet Building Regulations for energy efficiency, ventilation and, on upper floors, escape. The work is either self-certified by an installer registered with a competent person scheme or signed off by building control.
Rules change and every property is different, so we check the planning history and constraints for your address before we quote.
The four stages
A visit to your home
Book a visit and we'll come to you. The survey covers measurements, the state of what's there now and any obvious constraints, so the price that follows is based on your actual home, not an average.
Written quote
After the survey we send a quote for bifold or sliding doors that fixes the price for the scope we've agreed. If you want to change materials or scope, we revise it in writing before anything is booked.
Booking the work
Before anyone starts, we confirm the programme in writing, check whether consents are required and arrange deliveries. If a skip or scaffolding on the road needs a permit, we apply for it.
Finish and handover
Our trades complete bifold or sliding doors while your point of contact keeps you updated. When everything is finished, we clear the site, take away waste and go through the result with you before handover.
How we work
Questions about bifold or sliding doors in Mitcham
How do I maintain bifold doors?
Bifold doors need simple, regular care to keep them running smoothly. Vacuum or brush grit out of the bottom track every few weeks, wipe the frames with warm soapy water and avoid abrasive cleaners. Once or twice a year, lubricate the rollers, hinges and locks with a silicone spray. If the panels start to drop or catch, the hinges can usually be adjusted rather than replaced.
Do you cover Morden, Wimbledon and Streatham?
Yes. As well as Mitcham, we cover Morden, Wimbledon and Streatham and the rest of London. Our coverage is UK-wide, so the process is the same wherever you are: a free site survey, a quote in writing that fixes the price for the agreed scope, and one point of contact while the work is planned and carried out.
Can you fit bifold doors where I have a window now?
Bifold doors can usually replace a window by cutting the wall down to floor level and, if the opening is being widened, fitting a new lintel or steel beam. A structural engineer sizes the beam, and building control approval is needed. Radiators, pipes and cables under the window may need moving. We check all of this at the survey and include it in a single written quote.
How long do bifold doors take to make and fit?
Aluminium bifold and sliding doors usually take several weeks to manufacture after the survey, depending on the supplier and colour. Fitting into a ready opening normally takes one to two days, including sealing and finishing trims. If we are widening the opening, allow a few extra days for the structural work and making good before the doors arrive. We give you the expected timeline with your quote.
Is the price fixed?
Yes, for the specification we agree. Your written quote sets out exactly what is included at a fixed price. It only changes if you ask for something different, or if a problem the survey could not reasonably reveal later needs extra work. In either case we explain the change and confirm it in writing before going ahead.
Also covering areas around Mitcham
We cover every part of Mitcham, including CR4, SM4, SM5 and SW16, and nearby Morden, Wimbledon and Streatham. Wherever you are within that patch, the survey is free and the quote comes to you in writing.