COST GUIDES
How much do aluminium sliding doors cost in 2026?
Updated 07/26
Fast Facts
Average aluminium sliding door cost: Around £3,000 installed
Typical price range: £1,800–£4,200
Supply and installation: Around £720 per m²
If you're planning to install aluminium sliding doors, you'll probably want to know how much to budget before you start comparing styles and manufacturers.
Aluminium sliding doors are one of the more expensive external door options, but they offer slim frames, large uninterrupted panes of glass and excellent durability.
They're particularly popular for rear extensions, garden rooms and contemporary homes where maximising natural light is a priority.
This guide explains typical aluminium sliding door costs, what affects the price and how they compare with other aluminium door styles.
How much do aluminium sliding doors cost?
Aluminium sliding doors typically cost £1,800–£4,200, with an average installed price of around £3,000. Larger openings, premium glazing and slimline frames all increase the overall cost.
In general, for supply and installation, budget around £720 per m².
| Type of door | Cost + VAT (Range low - high) | Average cost |
|---|---|---|
| Standard aluminium sliding doors | £1,800–£4,200 | £3,000 |
| Slimline aluminium sliding doors | - | from £5,000 |
| Supply & installation | £720 per m² | |
| Last updated: July 2026 Our costs are ballpark averages - get a local tradesperson to quote now | ||
All figures include supply and installation unless otherwise stated.
Get quotes from checked aluminium door installers
Comparing quotes from checked installers is the easiest way to understand what your project is likely to cost.
When requesting quotes, let installers know the size of the opening, your preferred door configuration and whether you're considering double or triple glazing.
Find checked aluminium door fitters near you
Costs by type of aluminium sliding door
Standard aluminium sliding doors
Standard aluminium sliding doors cost around £3,000 on average. This typically covers a two- or three-panel configuration with double glazing and a powder-coated aluminium frame.
Slimline aluminium sliding doors
On average, slimline aluminium sliding doors generally start from £5,000 .
Their ultra-thin frames maximise the amount of visible glass but require more advanced engineering, making them one of the most expensive sliding door options available.
What affects the cost of aluminium sliding doors?
Several factors influence the final cost of aluminium sliding doors.
Door size: Larger openings require bigger glass panels and stronger frames, increasing both material and installation costs
Frame profile: Slimline systems cost more than standard aluminium frames
Configuration: Two-panel sliding doors are generally less expensive than three- or four-panel systems
Glazing: Triple glazing, solar control glass and acoustic glazing all increase costs
Frame finish: Standard powder-coated colours are usually cheaper than bespoke RAL colours or anodised finishes
Security features: Premium locking systems and anti-lift mechanisms can add to the overall price
Installation complexity: Difficult access, upper-floor installations or structural alterations may increase labour costs
Removal of existing doors: Some installers charge separately for removing and disposing of your old doors
On Checkatrade, you'll only find trades who meet our high standards and pass up to 12 checks.
Additional costs
Depending on your project, you may also need to budget for:
Structural alterations to widen an opening
New lintels or structural supports
Making good internal plasterwork or decorating
Electrical work if sockets or lighting need relocating
Scaffolding for difficult access
Removal and disposal of existing doors if not included within the quotation
We check the reviews on Checkatrade are from real people, and that trades meet our high standards.
Budget reality check
Large sliding doors can span several metres, meaning the glass panels become significantly heavier and the supporting structure more demanding. Bigger openings often require stronger lintels or additional structural support, so costs can increase considerably compared with a standard-sized installation.
Why choose aluminium sliding doors?
Aluminium sliding doors are a popular choice because they combine modern styling with impressive durability.
Some of the key benefits include:
Slim frames that maximise the glass area
Large uninterrupted views of the garden
Smooth sliding operation
Excellent durability without warping or rotting
Low maintenance requirements
Available in a wide range of colours and finishes
Suitable for both contemporary and traditional homes
Alternative aluminium door options and their costs
If sliding doors aren't the best fit for your home, there are several other aluminium door styles to consider.
Standard aluminium sliding doors (patio doors)
Traditional aluminium patio doors (two panels, one sliding, one fixed) average around £3,000.
These suit openings under 3m where a straightforward sliding operation is preferred. See our patio door replacement cost guide for more on this option.
Aluminium French doors
Basic aluminium French doors cost around £2,200 for a standard double-door set. They suit narrower openings where a sliding track would be impractical.
Aluminium bifold doors
Aluminium bifold doors average around £5,000 for a standard three- or four-panel set. They fold flat against the frame when open, giving a full-width opening, but they need clear wall space on either side to fold into.
Our bifold doors installation cost guide covers this in more detail.
Standard aluminium sliding doors are often referred to as patio doors. They typically consist of one fixed panel and one sliding panel. Larger sliding door systems can include three or more panels and span much wider openings.
How long does installation take?
Installing aluminium sliding doors is usually completed within one to two days once the doors have been manufactured and delivered.
Straightforward replacements are often finished within a day, while larger openings or projects involving structural alterations can take longer.
Your installer will be able to advise on the expected installation time after surveying your property.
Aluminium door cost calculator
The calculator below provides a guide price based on previous Checkatrade jobs.
Job Estimate Calculator
This calculator provides a guide price only. For a more accurate cost, compare quotes from a selection of checked aluminium door fitters working in your area.
Find checked aluminium door fitters near you
Can I install aluminium sliding doors myself?
Installing aluminium sliding doors is not a suitable DIY project.
The frames must be installed perfectly level to ensure the doors slide smoothly, seal correctly and remain weatherproof. Even small installation errors can affect performance and shorten the lifespan of the doors.
The glass panels are also extremely heavy and usually require specialist lifting equipment to install safely.
Replacement external doors must comply with building regulations and should normally be installed by a FENSA or CERTASS registered installer, who can provide the relevant certification once the work is complete.
Aluminium sliding doors cost checklist
Before requesting quotes:
Find a checked aluminium sliding door installer near you
A professional installer can help you choose the right sliding door system, measure your opening accurately and ensure the doors comply with building regulations.
When comparing installers:
Check they're registered with FENSA or CERTASS
Read verified customer reviews
Compare a selection of itemised quotations
Ask which manufacturers they supply
Confirm what's included in the price
Check the guarantees offered on both the product and installation
Providing accurate dimensions and as much information as possible will help installers prepare more accurate quotations.
Browse checked aluminium door installers working in your area
Enter your postcode to find a top tradesperson near you
- P
Pearl Windows & Doors Ltd
10.00
(44 reviews)Services & skills
Windows / Doors / ConservatoriesAluminium Doors InstallationTriple Glazing InstallationPatio Doors InstallationSecondary Glazing Aim Windows Ltd
10.00
(49 reviews)Services & skills
Windows / Doors / ConservatoriesAluminium Doors InstallationExterior Doors InstallationPatio Doors InstallationBifold Doors InstallationSurrey Alpine Windows
10.00
(53 reviews)Services & skills
Windows / Doors / ConservatoriesAluminium Doors InstallationLoft Windows InstallationExterior Doors InstallationDouble Glazing InstallationBexley Glass Limited
10.00
(89 reviews)Services & skills
Windows / Doors / ConservatoriesAluminium Doors InstallationDouble Glazing RepairWindow FittersTimber / Wooden Windows InstallationLondon & Local Window Design Ltd
9.84
(425 reviews)Services & skills
Windows / Doors / ConservatoriesAluminium Doors InstallationExterior Doors InstallationGlass ReplacementUPVC Doors InstallationBest Glazing Limited
9.75
(59 reviews)Services & skills
Windows / Doors / ConservatoriesAluminium Doors InstallationDouble Glazing InstallationAluminium Windows InstallationBay Windows Installation
Aluminium sliding doors FAQs
The average supply and installation cost for aluminium sliding doors is around £720 per m², although larger or premium door systems may cost more.
Aluminium doors have thinner frames, which means larger glass panels and better views. They are also more durable and corrosion-resistant than uPVC, and typically last longer. uPVC may suit smaller openings or tighter budgets. For a side-by-side comparison, see our guide to aluminium vs uPVC windows.
A straightforward like-for-like replacement typically takes one day. If structural work is required (widening the opening, adding or upgrading a lintel), allow two to three days. Bespoke and slimline doors are usually made to order, so expect a lead time of 4 to 8 weeks from order to installation.
In most cases, no: replacing existing doors like-for-like doesn't require planning permission. If you're creating a new opening or making structural changes to a wall, building regulations approval is needed. Listed buildings or properties in conservation areas should check with their local planning authority first.
If aluminium sliding doors don't suit your budget or layout, the main alternatives are uPVC sliding doors (lower cost, thicker frames), timber sliding doors (premium cost, more maintenance), aluminium bifold doors (fold flat for a full-width opening), aluminium French doors (suit narrower openings), or pivot doors (statement option for wide openings with a contemporary look).
Aluminium windows start from around £350 per window, depending on size and specification. For a full cost breakdown, see our aluminium vs uPVC windows cost guide.
More Aluminium Doors Installation Articles
See the tradespeople we've checked for your job