Choosing new windows is one of the most important decisions you can make for your home. Not only do they affect how your property looks from the outside, they also play a significant role in energy efficiency, security and long-term value. Two of the most popular choices for UK homeowners are uPVC and aluminium, and both have a great deal to offer.
So, which one is right for you? We have put together this straightforward guide to help you weigh up the options.
What Is uPVC?
uPVC stands for unplasticised polyvinyl chloride. It has been the go-to material for window frames in the UK for several decades, and for good reason. It is low maintenance, cost-effective and performs exceptionally well as an insulator. Modern uPVC windows are a far cry from the plain white frames of the past. Today’s ranges include a wide variety of styles, finishes and colours, including realistic woodgrain effects and flush sash designs that suit both traditional and contemporary properties.
At Admiral Homespace, our uPVC windows are available in a broad range of configurations to suit your home and budget.
What Is Aluminium?
Aluminium is a premium material that has grown significantly in popularity over recent years, particularly among homeowners looking for a sleek, modern aesthetic. Aluminium frames are incredibly strong relative to their size, which means they can accommodate much larger panes of glass with far slimmer profiles. This results in a greater glass area, more natural light and a cleaner, more contemporary look.
Our aluminium windows at Admiral Homespace are available in a wide range of RAL colours and finishes, giving you real flexibility when it comes to the overall design of your home.
Key Differences at a Glance
Appearance and Style
uPVC frames tend to be slightly bulkier in profile, though modern flush sash designs have closed the gap considerably. They suit a wide range of property types, from Victorian terraces to new-build homes. Aluminium, by contrast, offers ultra-slim sightlines and a distinctly contemporary finish. If maximum glass area and a minimalist look are a priority, aluminium is likely to appeal.
Thermal Performance
Both materials can achieve excellent energy efficiency ratings when combined with high-quality double or triple glazing. uPVC has natural insulating properties and tends to perform very well as standard. Aluminium, being a naturally conductive material, requires a thermal break within the frame to achieve comparable insulation. Modern aluminium systems with quality thermal breaks perform to a very high standard and will comfortably meet current building regulations.
Durability and Maintenance
uPVC is highly resistant to moisture, rot and fading, and requires very little upkeep beyond an occasional wipe-down. Aluminium is equally robust and extremely resistant to corrosion. Its powder-coated finish holds its colour well over time and is unlikely to chip or peel. Both materials are built to last for decades with minimal maintenance required.
Cost
As a general rule, uPVC windows represent a more budget-friendly option upfront, making them a popular choice for full house replacements or larger projects. Aluminium windows sit at a higher price point, reflecting the premium materials and the engineering involved. That said, both offer excellent long-term value, and the right choice will depend on your priorities and your property.
Security
Both uPVC and aluminium windows can be fitted with high-quality locking mechanisms and toughened or laminated glazing to meet modern security standards. At Admiral Homespace, all of our windows are specified with security in mind as standard.
Which Should You Choose?
The honest answer is that it depends on your home, your budget and the look you are hoping to achieve. If you are prioritising value for money and a versatile style that suits a broad range of properties, uPVC is a brilliant choice. If you are looking for slimmer sightlines, a premium finish and a bold contemporary aesthetic, aluminium could be the perfect fit.
Our team at Admiral Homespace is always happy to talk you through the options and help you find the right solution for your home.
Talk to Admiral Homespace Today
Whether you are drawn to the practicality of uPVC or the sleek appeal of aluminium, we can help you choose with confidence. Visit our showroom in Alconbury to see examples of both in person, or get in touch to arrange a free home survey and quotation.
Call us on 01480 456789 or visit admiralhomespace.com to find out more.
We’re Federation of Master Builders Accredited
The Federation of Master Builders has been instrumental in leading the campaign for safer window treatments in the UK via its Make it Safe campaign.
to about 70% satisfaction. The installers were contracter’s that had no commitment to what they were doing and it showed. We needed a new set of patio doors, thinking here
we go again going to get another job done that I know I won’t be overall happy with. I passed Admiral Homespace by chance, popped in had a chat with one of the sales team
who was not a cheesy sales guy in fact nice and pleasant to talk with (good start). We arranged a site visit he came over I explained what I was after which was to limit the
amount of surround and centre join of the doors he offered me a new to the market product that gave a centre join of 20mm and minimal surround. To cut a long story short,
bought the product it has been fitted by an excellent team who are employed with the company so have vested interest in doing a good job which they did. overall from sales
to surveying to organising and fitting the whole team are excellent very professional and actually care, the fitters Andy & Wayne look genuinely pleased with the doors and the
fact I was so pleased. I would highly recommend them looking to get new windows fitted so am going back to them. Happy to pass on pictures to them to forward to potential
customers’
a very helpful sales process. We were able to move at a comfortable pace, arriving at the final solution, in a timely but very professional manner. All trades conducted themselves
in a very professional manner, on time and as described. Even late changes were accommodated without issue, we would have no hesitation in recommending Admiral and their
comprehensive professional approach throughout
Admiral installed our doors and windows in 2012. In 2026 our front door lock broke and the manufacturer didn't make them anymore nor had any spare parts !
Nadine and Andy road to our rescue. Andy researched a potential fix, Nadine ordered the parts and Andy promptly repaired our lock mechanism and then installed it back in the door.
Absolutely super service and support - even years after our initial install!
Admiral Homespace care for their customers !
and professionally and customer service is really important to me, particularly when I'm making a substantial purchase. I had a slight issue with the lock on my door and an engineer visit was arranged quickly and efficiently. The matter was resolved in a few minutes with a few adjustments. Very happy with the service.’
Installation went well and we are very happy with the result.
I'd definitely recommend Admiral Homespace to anyone looking for custom, handmade windows & doors for their project.
