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.
Every house in Muswell Hill is a little different, so we never price bifold or sliding doors from a brochure. We look at the structure, access and existing finishes first, then put in writing a fixed figure for the scope we settle on. As a rough steer, homeowners in London should budget £3,900–£10,500 including VAT, with work typically taking 1–2 days to fit into a ready opening.
- Guide price
- £3,900–£10,500 inc VAT
- Time on site
- 1–2 days to fit into a ready opening
- Postcodes
- N2, N6, N8, N10 and N11
- Planning rules
- England
- Local area
- Greater London
- Survey
- Free, with a written quote
How much do bifold or sliding doors cost in Muswell Hill?
The table below shows guide prices for bifold or sliding doors in Muswell Hill. They are based on rates in London, which run about 30% above the national guide, giving an overall range of £3,900–£10,500. All figures include VAT and are firmed up after a free site survey.
| Type of job | What it usually involves | Guide in Muswell Hill |
|---|---|---|
| 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 |
Your price depends mostly on:
- 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
- Widening the opening with a new steel beam
What’s included?
- 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
- Removal of existing doors or windows and disposal of waste
- Level or low threshold options to suit your patio
- Building regulations sign-off arranged for the new doors
Local housing and bifold or sliding doors
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.
London Clay shrinks and swells with the seasons, and street trees close to houses can contribute to movement, which affects foundation design.
In Muswell Hill, as elsewhere in London, we take the building's age and construction into account before recommending anything, because both can change what is involved in bifold or sliding doors.
Do you need permission in Muswell Hill?
As Muswell Hill is in England, read the following with that system of planning and building control in mind. We check what applies to your house with the council before you receive a 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
First, someone visits your home in Muswell Hill to see the space, take measurements and note anything that could affect the work, such as access or the condition of what is there. There is no charge for this visit.
Your fixed price
We turn the survey notes into a written quote. The price is fixed for the specification we agree, and the document sets out materials, scope and payment stages in plain language.
Getting ready
With the quote agreed, we book the work in and handle preparation: permissions where needed, building control notifications, material orders and access arrangements for your Muswell Hill property.
Build and hand over
During the work we protect the areas around it and tidy up at the end of each day. Once complete, we check the finish, remove our materials and hand over paperwork such as building control sign-off where it applies.
What you can expect from us
Common questions
Who do I deal with during the job?
One point of contact manages your project from survey to handover. They schedule the trades working under our contract, keep you updated on progress, and are the person to call with any question. You don't need to coordinate builders, electricians or decorators separately, because that is part of what we do.
Can I stay at home during the work?
In most cases, yes. Most people can live at home throughout, and we plan the work to keep disruption down by protecting floors, agreeing working hours and keeping access routes clear. Bigger jobs affecting kitchens, bathrooms or heating may mean a short spell with reduced facilities, and we talk this through with you at the survey.
How much do bifold doors cost?
Bifold doors cost £3,900–£10,500 for a typical 3m opening, supplied and fitted. As a rough guide, allow around £900–£2,000 per metre of width plus the fixed costs of fitting, depending on frame material and glass. uPVC sits at the lower end and slimline aluminium at the top. Widening the opening with a new steel adds to the price. We confirm a fixed figure after measuring.
Are bifold doors secure?
Modern bifold and sliding doors are designed to be secure, with multi-point locks, shoot bolts into the frame, internally beaded glass and toughened or laminated glazing. The traffic door, which you use day to day, has a cylinder lock that can take an anti-snap barrel. Sliding doors also have anti-lift features. We explain the locking on each option so you can compare like for like.
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.
Nearby towns
Muswell Hill and its N2, N6, N8 and N10 postcodes are part of our coverage. Homeowners in Wood Green, Archway and Finchley can also book a free survey with us and receive a written price for their job.