The best aluminium windows for homes with contemporary designs
- 3 December, 2025|
- News
The best aluminium windows for modern homes
The biggest trend in recent years across the home improvement industry has been the rapid rise in popularity of aluminium products.
As property owners crave more natural light in their space, a modern aesthetic, and lower energy bills, aluminium has understandably become a go-to product for many.
If you’ve made the decision to upgrade your glazing, finding out the best aluminium windows for modern homes will help you to choose the right option based on your own unique priorities.
In this blog, we’ll explore popular styles, including the flush casement look that’s taking the industry by storm, admire trending colours such as the timeless anthracite grey, and analyse key performance benefits that could lead to cheaper energy bills and a more comfortable environment for your home.
What are the best aluminium windows for modern homes?
The “best” window depends on your style, how much natural light you want, and what performance matters to you.
Aluminium window styles
Casement windows
Casement windows are the UK’s most popular style of window, largely due to their simplicity and ease of use. They open outwards, usually from the side or top, in a similar manner to a door, and it’s likely that you operate one every day. They’re straightforward and effective, giving full control over ventilation. Slim aluminium frames mean more glass and better natural light, perfect for modern homes.
Flush casement windows
Flush casement windows sit completely flush with your exterior wall, creating incredibly clean, minimalist lines. We recommend our Alitherm 400 model, it achieves A+ BRE Green Guide ratings with u-Values as low as 1.4 W/m²K. Slim profiles mean maximum glass, maximum light.
Tilt and turn windows
These offer flexibility, tilt for controlled ventilation or swing fully open. Perfect for kitchens and bathrooms where you need precise, safe air control.
Fixed lights
Non-opening windows that let natural light flood in. Often combined with opening windows to create stunning contemporary designs.
Trending aluminium window colours
With over 200 RAL colours available, your options are genuinely impressive. Popular choices include:
- Anthracite grey – sophisticated and versatile
- Black – modern, dramatic, industrial
- Cream and off-white – light, airy, timeless
- Dark blue – moody and contemporary
- Dark red – personality and depth
You can even specify dual colour options, anthracite grey outside with white inside, for example. This gives you that sleek exterior look with bright, airy interiors.
Performance considerations
Energy efficiency and thermal breaks
Modern aluminium windows use thermal break technology, a polyamide layer that stops heat conducting through the metal frame. This means better insulation and lower energy bills.
Our best aluminium windows achieve A energy efficiency ratings with the right glazing, delivering genuine performance and comfort year-round.
Glazing options
Choose from double, triple or acoustic glazing in 24mm to 44mm options. Triple glazing offers elite thermal performance and noise reduction, which is ideal for new build properties.
Security and durability
Multi-point locking systems with PAS 24 accreditation give real peace of mind. Unlike timber frames, aluminium won’t rot or warp. We guarantee against peeling, warping and bowing for 25 years, they truly need little maintenance.
Design considerations
Heritage aluminium windows
Our Alitherm Heritage windows replicate traditional steel aesthetics with modern performance. B energy rating, available as casement, tilt and turn, or fixed lights. Perfect if you love that industrial look.
Flush windows
The pinnacle of contemporary design. Sitting flush with your exterior wall creates unbroken, premium lines. Maximum natural light through slim sightlines. Available in our complete range of colours and finishes.
Frequently asked questions
What’s the difference between aluminium and uPVC windows?
Aluminium offers slimmer frames (more glass, better light), superior strength, and unlimited colour options. uPVC is typically slightly cheaper. Both deliver excellent thermal performance, it’s about your priorities.
How long do aluminium windows last?
Usually 30+ years minimum. We guarantee against peeling, warping and bowing for 25 years. Sealed units are guaranteed 10 years against faulty seals; hardware is covered for 1 year.
Are aluminium windows expensive?
The cost of aluminium windows varies by size, style, and glazing. Generally more expensive than uPVC but less than timber. Energy efficiency and low maintenance make them genuinely cost-effective, with savings on energy bills over time. Get a free quote from us.
Can I get colours other than white and grey?
Absolutely. We are proud to offer over 200 RAL colour choices. Dual colour options are available too. If you are unsure which colour aluminium window frames you should opt for, our team will be happy ot share their expertise!
Do aluminium windows need much maintenance?
Barely any. Just regular soapy water cleaning. Unlike timber, they won’t rot or need repainting, so you do not need to worry regardless of weather conditions or your property type.
Who are Warwick Development?
We’re a Sheffield-based manufacturer, supplier and installer of quality aluminium and uPVC windows, as well as our door and roofing range. Trading for over 30 years as a family-run business, we service customers across the UK.
All our installations are FENSA registered with accreditation from CMS Quality Mark, PAS 24, BSI and others.
Our showroom is open Monday-Friday. We provide free design consultations and full installation services within 45 miles of Sheffield. Trade enquiries receive quotes within 8 hours; homeowner quotes within 48 hours.
Get in touch for your free quote today. Call us on 0114 257 1200 or use our online contact form.
Key findings
- Style matters – Casement, flush, tilt and turn, and fixed light options let you match your specific requirements and modern aesthetic
- Colour is endless – With 200+ RAL colours plus metallics and wood grains, you can create genuinely personal aluminium window designs
- Thermal breaks work – Polyamide thermal break technology delivers A-rated energy efficiency, lowering your energy bills significantly
- Low maintenance is real – Aluminium frames won’t rot, warp or peel, unlike timber windows, and need just occasional cleaning
- 25-year guarantee – Quality aluminium windows from reputable suppliers stand the test of time with proper accreditation and peace of mind
