How much does patio door replacement cost in the UK?
Patio doors cost £2,200 on average in the UK. Most jobs fall between £1,200 and £6,500 supplied and fitted. Size and material: uPVC sliding doors £1,200 to £2,500; Aluminium sliding doors £2,500 to £4,500; Large or premium aluminium £4,500 to £6,500. Prices reviewed July 2026.
Replacing sliding patio doors costs roughly £1,200 to £6,500 for a set supplied and fitted, typically around £2,200. uPVC is the budget choice, slimline aluminium costs more, and a wider or premium set the most.
Patio door replacement cost calculator
Use the calculator to price your patio doors in 2026. Adjust the options and area for a UK cost range. Nothing is sent anywhere.
Patio door replacement cost breakdown
Typical patio doors costs, by option:
| Size and material | Typical UK cost |
|---|---|
| uPVC sliding doors | £1,200 to £2,500 |
| Aluminium sliding doors | £2,500 to £4,500 |
| Large or premium aluminium | £4,500 to £6,500 |
What's included in the price?
Typical patio doors prices include:
- The sliding patio door set, frame and running gear
- Removal of the old doors and clearing the waste
- Fitting into the existing opening, sealing and making good
- Standard double glazing and a multipoint lock
What changes the price?
The things that move patio doors prices most:
Frame material: uPVC is cheapest, aluminium costs more and is slimmer
Overall width and whether it is a two or three pane set
Glass spec, such as low-e or solar-control glazing (safety glass in the doors is required anyway)
A coloured or dual finish instead of standard white
Whether the opening is being widened, which adds structural cost
These are why two quotes for the same job can differ, and the only way to know your price is to get prices from local firms (through Bark; we may earn a fee, at no extra cost to you).
How the price is built up
Most of the price is the door set itself, the frame, the running gear and the glazed sliding panes, plus roughly a day of fitting. A standard uPVC two-pane slider is the cheapest route and sits near the £1,200 floor, because uPVC costs less than aluminium. Moving to a slimline aluminium set lifts the frame cost to £2,500 to £4,500, and a wider three-pane or premium slimline run pushes toward £6,500, with very large spans higher still. Solar-control glass, a coloured or dual finish and better running gear each add to the total; safety glass in the doors is a requirement, so every quote should include it. Widening the opening is a separate structural job, so budget £800 to £2,500 on top for the lintel and making good. The door set and glazing are the bigger share on most jobs, usually around 60 to 70 percent of the total, with the day or so of fitting labour making up the rest. Labour only to fit a set you supply is typically £300 to £600, since sliding doors are heavier and fiddlier to align than a single door.
Ways to keep the cost down
- A uPVC slider is the cheapest route at £1,200 to £2,500, so if you do not need the slim aluminium sightlines, uPVC keeps you near the floor.
- Keep the existing opening. Widening it is a separate structural job at £800 to £2,500, so replacing like for like avoids the biggest add-on.
- Standard white costs less than a coloured or dual finish, so a plain finish trims the frame cost.
- Get two or three quotes and ask the fitter to state clearly whether removal, making good and waste are included.
Does where you live change the cost?
In London, patio doors typically cost around £2,600 supplied and fitted, about 20% above the UK average of £2,200. In the North, Scotland and Wales the guide figure is nearer £2,100.
| Region | From | Typical | Up to |
|---|---|---|---|
| Midlands / East (UK average) | £1,200 | £2,200 | £6,500 |
| London | £1,400 | £2,600 | £7,800 |
| South East / South West | £1,300 | £2,300 | £6,800 |
| North / Scotland / Wales | £1,200 | £2,100 | £6,300 |
Guide prices supplied and fitted, scaled with the same regional multipliers as the calculator. Not quotes.
Patio door replacement cost in major UK cities
| City | From | Typical | Up to |
|---|---|---|---|
| Belfast | £1,100 | £2,100 | £6,200 |
| Birmingham | £1,200 | £2,200 | £6,500 |
| Bristol | £1,300 | £2,300 | £6,800 |
| Cardiff | £1,200 | £2,100 | £6,300 |
| Edinburgh | £1,200 | £2,100 | £6,300 |
| Glasgow | £1,200 | £2,100 | £6,300 |
| Leeds | £1,200 | £2,100 | £6,300 |
| Liverpool | £1,200 | £2,100 | £6,300 |
| London | £1,400 | £2,600 | £7,800 |
| Manchester | £1,200 | £2,100 | £6,300 |
| Newcastle | £1,200 | £2,100 | £6,300 |
| Sheffield | £1,200 | £2,100 | £6,300 |
City guide estimates, scaled by local labour costs. Indicative averages for patio doors, not quotes.
The gap is mostly in the fitting. The doors cost much the same everywhere.
Compare this with a real quote
The figures above are guide prices. Two or three quotes for your patio doors tell you what it costs where you live.
Free and no obligation. You answer a few questions on Bark, local pros get in touch, and you decide who, if anyone, to hire. We may earn a fee, at no extra cost to you.Common questions
How much does it cost to replace patio doors?
Replacing sliding patio doors costs roughly £1,200 to £6,500 for a set supplied and fitted in the UK, typically around £2,200. A standard uPVC two-pane slider is £1,200 to £2,500, a slimline aluminium set £2,500 to £4,500, and a wider or premium aluminium run £4,500 to £6,500. That assumes fitting into the existing opening; widening it adds structural cost on top.
What changes the price of a patio door replacement?
Frame material is the biggest lever: uPVC is the budget choice, while aluminium costs more for slimmer frames and more glass. After that it is the overall width and whether it is a two or three pane set, the glass spec such as low-e or solar-control (safety glass in the doors is a building regulations requirement, not an extra), and any coloured or dual finish over standard white. The one item that can double a quote is widening the opening, which is a separate structural job with a lintel and making good, usually £800 to £2,500 on top.
Are aluminium sliding doors worth the extra over uPVC?
Aluminium has much slimmer frames and more glass for the same opening, and it is stronger, which suits wide spans and exposed walls. That is why larger sliders are usually aluminium. uPVC at £1,200 to £2,500 is the value pick and is fine for a standard back or garden doorway, so if you do not need the slim sightlines, uPVC saves a clear £1,000 or more.
Are sliding patio doors cheaper than bifold doors?
For the same opening a sliding patio door is usually a little cheaper than a bifold and keeps more glass in view because it has fewer frames. Bifolds fold the whole wall open, which sliders cannot, but the folded stack takes up part of the opening. A uPVC slider from £1,200 undercuts aluminium bifolds, which typically start around £2,000. See our bifold doors cost guide for that comparison.
Can I replace patio doors myself?
It is one of the harder DIY jobs and most people should not. Sliding sets are heavy and awkward, and getting the frame dead level and the panes running and sealing correctly is fiddly; a set hung out of true will stick, drop or let in draughts. Fitting is only about 30 to 40 percent of the total, so the saving is modest against the risk. A DIY fit also means applying to building control and paying its fee, because a door set that is more than half glazed has to be notified, and any structural opening work needs sign-off too.
How long do patio doors last, and how long does the job take?
A like-for-like replacement is usually a one-day job, longer only if the opening is being widened. A decent uPVC or aluminium sliding set lasts 20 to 30 years; the rollers, handles and multipoint lock tire before the frame and are all replaceable for far less than a new door. Sticking or draughty doors from the 1990s are the usual sign it is time to replace.
Do replacement patio doors have to meet building regulations?
Yes, in England, even for a like-for-like swap. Schedule 4 to the Building Regulations 2010 only lets you replace an external door without notifying building control if it is no more than 50% glazed, and a patio door set is nearly all glass. An installer registered with a competent person scheme, such as FENSA or CERTASS, self-certifies the work and gives you a certificate; otherwise you apply to building control and pay its fee. Glass in the doors up to 1500mm above the floor must be safety glazing. Replacing only a misted sealed unit in the old frame is not building work.
Check they are registered before they start
Replacement windows and doors have to comply with the building regulations. A fitter in an authorised scheme certifies their own work and gives you the certificate; without one you need a building control application. Checking takes about a minute and it is free.
- Find a FENSA approved installer FENSA · FENSA is one of the authorised schemes for replacement windows and doors, not the only one, so a fitter registered with Certass or another scheme can certify the work just as well
Official guidance and sources
The rules and schemes referenced on this page come from these official UK sources. The price figures are Costwise's own; see how we price.
- Doors and windows: building regulations Planning Portal · Replacement windows and doors must meet the building regulations, either self-certified by an installer in a competent person scheme or approved by building control.
- Building Regulations 2010, Schedule 4 legislation.gov.uk · Work that needs no building notice. A replacement external door qualifies only if it is no more than 50 per cent glazed, so a patio or French door set has to be notified or self-certified.
- Approved Document K: protection from falling, collision and impact GOV.UK · Glazing in critical locations, including doors and side panels up to 1500mm above the floor, must be safety glazing, and replacing a whole door set brings it under this requirement.
- Replacement windows and doors Building Control Partnership (Hampshire councils) · A council building control team's explanation of when replacement doors need an application and when a scheme installer's certificate covers it.
Cite this data
These figures are free to use in articles, reports and research under a CC BY 4.0 licence. All we ask is a credit to Costwise, and online a link. Where your style allows, please make "Costwise" the linked word so readers can check the figure for their own region.
Costwise (2026): Patio doors typically cost £2,200 in the UK, ranging from £1,200 to £6,500 supplied and fitted. Reviewed July 2026. costwiseuk.co.ukSource: Costwise (costwiseuk.co.uk)Costwise (2026). Patio door replacement cost. Costwise UK cost data, version 2026-10-12. https://costwiseuk.co.uk/patio-door-replacement-cost/2026-10-12 (158 jobs)Dataset DOI: 10.5281/zenodo.21159943 · also on Kaggle, Hugging Face and Figshare. Method: how we price. Downloadable CSV.
These are independent guide prices based on typical UK jobs in 2026. Your actual cost depends on your property, spec, access and where you live. Always get at least three written quotes before committing.