- March 27, 2026|
- News
Aluminium vs uPVC windows
Since the demise of timber as a viable option for life in 2026, homeowners across the UK have usually had to choose between these two frame materials when looking to upgrade their glazing, and the truth is that both are pretty good solutions, all things considered.
Whilst uPVC certainly dominated the market in the 2000s (you can hardly walk down any UK street without seeing a white uPVC window or door), things aren’t as clear nowadays, in large part due to the rise of aluminium.
Nowadays, we’re finding that the public are becoming more conscious of both sustainability and health, and as such are looking for thermally efficient windows that let plenty of light into their home. This is where aluminium, a metal widely used in construction, transport and even electronics, has come in. We’ll compare it to uPVC in this article, and explore which may be the right option for your unique requirements.
Introducing aluminium windows
Aluminium is a lightweight, strong metal used in everything from cars and aircraft to modern office buildings. In the window industry, it’s prized for its durability, strength, and sleek, modern look.
Its rise in popularity is partly due to the trend for minimalist, contemporary homes, and also because its slim aluminium frames let in more daylight, helping create healthier indoor environments. Offices and homes alike are now embracing aluminium for its flexibility and stylish appeal.
What are the benefits of aluminium windows?
At ClearView, all our aluminium windows are manufactured in-house. This means we control quality at every stage, reduce lead times, and independently test each product to ensure it performs exceptionally well. Here’s what makes aluminium windows stand out:
Increased natural light
Aluminium’s slim frames allow larger panes of glass, filling rooms with daylight. This has real benefits: improved mood, better sleep, reduced stress, and higher productivity, especially useful if you work from home. Your whole family enjoys a brighter, healthier home environment.
Strength
Aluminium is extremely strong, which is why it can support large glazing panels without bulky frames. This strength ensures your windows last for decades, often 40+ years, without warping or sagging, even in harsh weather conditions.
Low maintenance
Unlike timber, aluminium doesn’t rot, warp, or need regular painting. A simple damp cloth is enough to keep it looking pristine. It also holds up better than uPVC, maintaining its finish and shine for years.
Thermal performance
Older aluminium windows were criticised for poor insulation.
Modern thermal break technology combined with double and triple glazing options now makes aluminium highly energy-efficient, reducing heat loss and energy bills.
This is why offices and new builds increasingly choose aluminium for superior thermal insulation and lower costs.
Versatility
Aluminium offers a wide range of colours, including popular shades like anthracite grey, and a variety of window styles. Whether you want contemporary casements or heritage sash windows, aluminium can meet your specific needs.
Environmentally friendly
Aluminium is 100% recyclable, and recycling it saves up to 95% of the energy needed to produce new aluminium, helping reduce your home’s carbon footprint.
Introducing uPVC
uPVC stands for unplasticised polyvinyl chloride, a type of plastic that’s lightweight and durable. Introduced for windows in the 20th century, it’s now ubiquitous across UK streets, often in a plain white finish. It’s also used in piping, guttering, and other construction applications.
What are the benefits of uPVC?
Cost-effective
uPVC windows are generally the lowest-cost option for replacement windows, making them accessible for budget-conscious homeowners.
Thermally efficient
uPVC frames have historically offered good thermal performance, helping to keep homes warm in winter and cool in summer.
Low maintenance
uPVC requires minimal upkeep, just a wipe down with a damp cloth, so it’s convenient for busy households.
Comparing aluminium vs uPVC windows
Here’s how the two materials stack up:
| Feature | uPVC windows | Aluminium windows |
| Strength | Moderate, can warp over time | Very strong, holds large panes |
| Lifespan | ~20-25 years | 40+ years |
| Thermal efficiency | Good | Excellent with thermal breaks |
| Maintenance | Low | Minimal, easy to clean |
| Appearance | Often plain, thicker frames | Slim profiles, modern or heritage looks |
| Colours | Dependent on supplier | Wide range of colours, including RAL colour options |
| Environmental impact | Plastic-based, less recyclable | 100% recyclable, reduced carbon footprint |
| Natural light | Less due to thicker frames | Slim frames maximise natural light |
| Cost | Lower initial outlay | Higher initial cost, better long-term value |
Verdict: Aluminium is the best choice for homeowners seeking long-lasting, thermally efficient windows that flood the home with natural light and require minimal maintenance. It also promises to raise the value of your home.
Choose aluminium if
- You want more natural light indoors
- You need durable, long-lasting windows
- You prefer a modern look or heritage style
- You want minimal maintenance and superior thermal efficiency
- You care about your home’s environmental impact
Choose uPVC if
- You’re on a tight budget
- You want standard, low-maintenance windows
- You don’t require large panes or custom colours
Aluminium windows from ClearView
Our aluminium windows are proudly manufactured in Yorkshire. We offer a complete in-house service from survey to installation. Our range includes:
- Casement windows: The UK’s most popular, open inwards or outwards from a single hinge
- Tilt & turn windows: Inward opening either securely from the top or fully from the side, easy to clean, ideal for apartments
- Heritage aluminium windows: Slim profiles for period properties and conservation areas
- Flush sash windows: The glass sits perfectly level with the frame, a trend that’s in demand.
- Slim sash windows: Ultra-slim profiles for maximum glass area and light
All options can be specified with triple glazing for added thermal efficiency.
FAQs
Q: Are aluminium windows energy efficient?
A: Yes, modern aluminium with thermal breaks and triple glazing provides excellent insulation.
Q: How long do aluminium windows last?
A: They can last 40+ years with minimal maintenance.
Q: Can I choose any colour for my aluminium windows?
A: Yes, we offer a wide range of colours, including RAL finishes.
Who are ClearView?
For over 15 years, ClearView has supplied and installed premium aluminium windows and doors across Yorkshire, Derbyshire, Lancashire, Cumbria and beyond. We manufacture in-house, offer full project management, and provide a 10-year guarantee. Visit our Leeds or Huddersfield showrooms or call 0800 907 8658 to find the right windows for your home.
We’re incredibly proud of our five-star average rating on Google, collated from almost 70 reviews! You can read them for yourself here, focusing on a variety of products from stunning bifold installations to new windows.
In summary
- Aluminium windows allow more natural light than uPVC
- Modern aluminium is highly thermally efficient
- Aluminium lasts longer, often 40+ years
- Low maintenance with wide colour options
- ClearView manufactures and installs bespoke aluminium windows with full project support and peace of mind
