Aluminium Windows & Doors Cost UK (2026 Price Guide)
Discover the real cost of new windows and doors in the UK. Learn what affects pricing, typical ranges, and how to avoid hidden costs.
Transparent Pricing · Informed Decisions
Understanding Aluminium Window & Door Costs
Understanding the cost of aluminium windows and doors isn’t always straightforward. Prices can vary considerably depending on the products, specifications and installation requirements, making it difficult to know whether you’re comparing like for like.
This guide explains what influences aluminium window and door prices in the UK, what to look for in a quotation and how to assess long-term value — helping you make an informed decision with confidence.
Why Window & Door Prices Aren’t Always Advertised
Unlike off-the-shelf products, windows and doors are made to measure.
The final price depends on:
- Size and configuration
- Material (aluminium, uPVC, timber)
- Colour and finish
- Glass specification
- Installation complexity
That’s why most companies don’t list fixed prices online.
Aluminium Windows Cost by Type
| Window Type | Typical Cost (Installed) |
|---|---|
| Casement window | £600 – £1,200 |
| Sliding window | £500 – £1,000 |
| Tilt & turn window | £600 – £1,200 |
| Large feature window | £1,000 – £2,500+ |
Larger sizes and slimline systems increase costs significantly.
Typical Price Ranges (UK Guide)
Here’s a realistic overview of what homeowners typically pay:
Windows (per unit installed)
- uPVC windows: £500 – £900
- Aluminium windows: £800 – £1,500
- Timber windows: £1,200 – £2,000+
Doors (supply & install)
- uPVC front door: £900 – £1,800
- Aluminium door: £1,500 – £3,000+
- Bi-fold doors: £3,000 – £8,000+
- Sliding doors: £4,000 – £10,000+
These are guide prices—your exact cost will depend on your project.
Real Aluminium Glazing Cost Examples 2026
£1,998.00
Classic Heritage Door
1290mm x 2090mm
£1,695.00
Aluspace Heritage Interior Double Door 1100mm x 1800mm
£3,048.00
Heritage Door with Side Lights
2990mm x 2090mm
£2,150.00
Heritage Interior Door
1200mm x 1800mm
£3,852.00
Heritage Aluminium Double Door Top and Side Lights 2990mm x 2490mm
“From the day work started through to completion, they have been first class and they came through on all the promises made at the pre-contract stage discussions. We are delighted that we chose to appoint Marlin Windows to the contract and we would not hesitate in working with them again in the future.”
Rob Storton, Ilkley – Home Owner
What Actually Affects the Price?
-
- Material Choice
-
- uPVC → most affordable
- Aluminium → mid to premium
- Timber → premium
- Aluminium tends to cost more upfront—but lasts longer and offers slimmer frames.
-
- Size & Design Complexity
-
- Larger openings = higher cost.
- Things that increase price:
- Floor-to-ceiling glazing
- Multiple panels (e.g. bi-folds)
- Bespoke shapes
-
- Glass Specification
-
- Glass plays a huge role in performance and price.
- Options include:
- Double vs triple glazing
- Solar control glass
- Acoustic glass
- Higher-spec glass = better comfort, but higher cost.
-
- Installation Requirements
Not all installs are straightforward.
Costs can rise due to:
-
- Structural work (e.g. removing walls)
- Difficult access
- Older properties needing adjustments
-
- Compliance with UK Standards
-
- All installations must meet Building Regulations, which can influence specification and cost.
Why Quotes Can Vary So Much
It’s common to get quotes that differ by thousands.
This is usually due to:
Product quality differences
Installation standards
Warranty coverage
Brand/manufacturer used
Important: Not all quotes are comparing like-for-like.
How to Compare Quotes Properly
When reviewing quotes, ask:
- What system/brand is being used?
- What’s the energy rating?
- What warranty is included?
- Is the installation fully covered?
This helps you make a fair comparison.
Are Aluminium Windows Worth the Cost?
Aluminium is typically more expensive than uPVC—but offers:
Longer lifespan
Slimmer, more modern frames
Higher durability
Lower maintenance
For many homeowners, it’s a long-term investment rather than a short-term saving.
…..Judge for yourself
Explore some of our spectacular projects
Hidden Costs to Watch Out For
Some quotes look cheaper—but don’t include everything.
Check for:
- Installation costs
- Disposal of old windows
- Internal finishing (plastering, trims)
- VAT
Great service and great sliding doors.
From meeting Karl to discuss our requirements, to the doors being delivery the process was simple and smooth. Even measuring the size of the doors myself.
If you want high quality and competativly priced doors I would recommend Marlin windows.
John Roman – Queensbury
Final Thoughts
Pricing for windows and doors isn’t always straightforward—but understanding what drives cost helps you make a smarter decision.
The key is to focus on:
- Transparency
- Quality
- Long-term value
Rather than just the cheapest initial price.
Latest projects
CONTEMPORARY WINDOWS
Contemporary Aluminium Glazing, Louper Weir, Lake District – New Build
CONTEMPORARY SLIDING DOORS
Ilkley Contemporary Sliding Patio Door Installation
BI FOLD DOORS
Bi-fold Doors Ben Rhydding – Ilkley
Frequently Asked Questions
If you require any support, please don’t hesitate to review our FAQ’s below or drop us a message on our contact form here
Are aluminium windows more expensive than uPVC?
Yes—typically 20–40% more, depending on specification.
How much do aluminium windows cost per window?
Most homeowners pay between £600 and £1,500 installed.
What’s the cheapest way to buy aluminium windows?
Supply-only is cheaper—but professional installation is recommended.
Come and explore…
Aluminium Bi-fold Doors, Sliding Doors, Contemporary Glazing, Aluminium Heritage Windows and Traditional Steel Replacement Doors
