If you’re thinking about replacing your windows, one of the first decisions you’ll face is what material to choose.
In Newcastle, where the weather can swing from cold, damp winters to warm, breezy summers, your windows need to do more than just look good. They need to insulate, protect, and last.
So, what’s the difference between uPVC, aluminium, and timber windows—and which is right for your home?
At Windows and Doors Newcastle, we’ve installed all three types across homes in Jesmond, Gosforth, and throughout the North East. In this guide, we’ll explain the key differences, pros and cons, and real-world performance of each option, so you can make a confident, informed decision.
What are the three main window frame materials?
Here’s a quick summary of the main contenders:
- uPVC – Modern, affordable plastic frames that dominate the UK window market.
- Aluminium – Slim, strong metal frames with a sleek, contemporary look.
- Timber – Traditional wooden frames, popular in period homes and conservation areas.
Each has its strengths. Let’s explore them in detail.
uPVC Windows: Affordable and Low Maintenance
uPVC (unplasticised polyvinyl chloride) is the most common window material in the UK—and for good reason.
Pros of uPVC
- Affordable – One of the cheapest options on the market, without compromising performance.
- Low maintenance – Doesn’t need painting or staining. Just wipe it down occasionally.
- Good insulation – Offers strong thermal performance to reduce heat loss.
- Weather resistant – Handles rain, frost, and strong winds without warping or rotting.
- Variety of styles – Available in white, grey, wood-effect finishes, and more.
Cons of uPVC
- Thicker frames – Bulkier than aluminium, which can reduce glass area slightly.
- Can discolour – Lower quality uPVC may yellow over time, especially in direct sun.
- Not ideal for period homes – May not match the look of traditional timber frames in conservation areas.
uPVC is the go-to choice for most homeowners in Newcastle, especially for properties built after the 1980s. It’s cost-effective, easy to maintain, and widely available.
At Windows and Doors Newcastle, our most popular installations are A-rated uPVC windows in custom colours—balancing energy savings with modern style.
Aluminium Windows: Sleek, Strong, and Modern
Aluminium windows are increasingly popular in contemporary homes and commercial builds.
Thanks to advancements in thermal technology, they now offer performance that rivals uPVC—with a completely different aesthetic.
Pros of Aluminium
- Slim profiles – Thin frames allow for more glass and better views.
- Strong and durable – Resistant to warping, rotting, and impact.
- Modern appearance – Perfect for minimal, architectural styles.
- Low maintenance – Powder-coated surfaces don’t require repainting.
- Available in many colours – Custom finishes available, including matt black, anthracite grey, and dual colour.
Cons of Aluminium
- More expensive – Typically costs more than uPVC, especially for large openings.
- Lower insulation (without breaks) – Older or cheaper models can allow heat transfer, though modern systems now include thermal breaks.
- Harder to match traditional styles – Doesn’t always suit period homes or heritage buildings.
We often recommend aluminium for large glass areas—like bifold doors, sliding doors, or modern extensions. If you live in a newer property or want a contemporary update, aluminium is a strong contender.
We’ve fitted aluminium frames in properties from central Newcastle to new-build estates in Kingston Park—offering a clean, high-end finish with lasting performance.
Timber Windows: Classic Style and Natural Warmth
Timber windows are the most traditional choice, and they’re still widely used in older or listed homes.
They offer a warm, natural look that other materials can’t fully replicate. But they do require more care.
Pros of Timber
- Authentic appearance – Ideal for Georgian, Victorian, and Edwardian homes.
- Natural insulation – Wood has excellent thermal performance.
- Fully customisable – Paint, stain, and hardware can all be tailored to your taste.
- Suitable for conservation areas – Often required in protected zones.
Cons of Timber
- High maintenance – Requires repainting or restaining every few years.
- More expensive – Generally the priciest option due to material and labour costs.
- Can be affected by moisture – If not properly maintained, wood can swell, warp, or rot.
We only recommend timber windows to homeowners who are ready to commit to the upkeep. They’re beautiful, but they do need regular attention.
For listed homes in Jesmond, Tynemouth, or Durham city centre, we’ve fitted custom timber sash windows that match heritage requirements while improving energy efficiency.
Head-to-head comparison
Here’s how the three materials compare across key factors:
| Feature | uPVC | Aluminium | Timber |
|---|---|---|---|
| Cost | £ (low) | £££ (high) | ££–£££ (varies) |
| Maintenance | Very low | Low | High |
| Insulation | Good | Moderate–Good | Excellent |
| Style options | Good | Excellent | Excellent |
| Durability | 20–30 years | 30–40 years | 30+ years (with care) |
| Suitability for period homes | Limited | Limited | Excellent |
| Eco-friendliness | Moderate (plastic) | High (recyclable) | High (renewable) |
Which is best for your Newcastle home?
Here’s a simple guide based on property type:
Modern semi or detached home –
uPVC is often the best value option. It’s reliable, energy efficient, and suits a range of styles. You can upgrade to aluminium for a sleeker finish.
Contemporary new build or extension –
Aluminium offers a stylish, high-end look. Slim sightlines, bold colours, and excellent strength for wide spans.
Period or heritage property –
Timber is the top choice for listed buildings or traditional homes. It maintains the original character and can meet conservation regulations.
Budget-conscious homeowners –
uPVC is the most affordable and offers plenty of choice in colour and design. Perfect for whole-house replacements.
Eco-conscious buyers –
Aluminium (fully recyclable) or sustainably sourced timber (renewable) are better long-term environmental choices than uPVC.
Final thoughts
So, what’s the difference between uPVC, aluminium, and timber windows?
In short:
- uPVC is cost-effective, reliable, and low-maintenance.
- Aluminium is modern, strong, and sleek, but more expensive.
- Timber is classic, natural, and heritage-friendly, but requires ongoing care.
Your choice should reflect your property style, your budget, and how much time you’re willing to invest in maintenance.
At Windows and Doors Newcastle, we supply and fit all three materials—and we’ll always give honest advice based on what suits your home best.
Need help deciding?
Book a free consultation with our local team. We’ll visit your home, talk you through the options, and show you real samples—so you can see the difference for yourself.
No pressure. Just expert advice and quality workmanship from a company that knows Newcastle inside and out.
