Aluminium vs UPVC Windows: A Homeowner’s Decision Guide

Aluminium vs UPVC Windows: Modern vs Traditional Design

New windows for your home might be on the cards if you’re looking to renovate the space this spring, which may lead you to question if it’s worth buying aluminium or UPVC windows.

Take your time over deciding, considering all the different factors involved first.

Cost is one of the foremost considerations and you should think about the impact of each on energy bills, what look they offer, and their sustainability.

We want to help uncomplicate the decision-making process for you, offering a written outline about UPVC vs aluminium windows.

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When to Choose Which

Select aluminium for:

  • Stability – aluminium is about as strong as you will get and won’t suffer from corrosion, warping or cracking.
  • Minimalism – enjoy incredible sightlines thanks to ultra-slim frames and maximum glazing.
  • Easy care – you only have to dedicate a brief few minutes to maintaining aluminium windows.
  • Energy efficiency – thermal breaks inside an aluminium frame help the material realise amazing insulation standards.

Select UPVC for:

  • Low cost – UPVC double glazing windows are less expensive than aluminium or timber-made designs.
  • Weatherproofing – UV exposure won’t cause quality UPVC profiles to fade and they’ll resist rain, snow etc.
  • Simple upkeep – there’s no need to repaint UPVC, as it doesn’t rust like traditional timber does.
  • Energy efficiency – UPVC insulates extremely well and lowers heat loss and energy bills.

Price Disparity Between Aluminium and UPVC Windows

Standard window sizes won’t be suitable for larger window openings. If your openings at home are oversized, be conscious that bigger sizes will use added material, require extra glazing support and need a more durable framework, increasing the end cost. Personalisation of windows also uplifts price.

What else can affect the cost of aluminium windows vs UPVC UK is the type of glazing selected and desired level of thermal efficiency. High-performance glazing means increased outlay, but it will assure you of markedly amplified warmth indoors.

To keep cost down, specify a standard colour finish, as colours outside of this group, as well as powder-coated finishes, tend to add expense. Dual-coloured finishes raise costs too.

A couple more things that might increase the price is any structural alteration, bespoke shaping and if site access is complex.

Aluminium windows are costlier than UPVC windows but try not to view it like that. Instead, think about how much they’ll save you in the long-term courtesy of the extreme resilience and strength they possess and will retain for years to come.

Are They Money-Saving Products?

Undoubtedly, they are. The extent to which they’ll keep costs down hinges on how much durability and energy efficiency they deliver, as this will play a crucial role.

What is a good u value for windows? In respect to modern UPVC double or triple glazed windows, they provide a U-value of about 1.2 W/m²K, signalling outstanding thermal performance. Modern thermally broken aluminium window systems often rival that U-value figure.

Generally, aluminium windows endure longer than UPVC windows by around a decade, with a lifespan of 30-40 years, owing to the superb weather-resistance they provide, to name one reason.

UPVC frames are by no means short lived, it’s just that aluminium frames don’t normally need to be replaced as quickly, which could influence your thinking.

Look at the bigger picture with aluminium rather than squarely concentrate on what it costs – it has a long life, it’s robust, and its maintenance requirements are low. Aluminium’s alluring appearance is something to ponder too.

There’s lots to like about UPVC if you’re unwilling or can’t afford to pay for aluminium, including its first-class thermal qualities and affordable running costs.

Which Have Most Longevity and Need Least Upkeep?

Aluminium windows come out as the winner for longevity when discussing how long to do windows last, but UPVC makes up for it by being similarly easy to maintain.

The life expectancy of an aluminium window is 30-40 years; however, it can surpass that estimate. Its remarkable strength is a bedrock of its longevity and ability to resist weathering. A powder-coated finish is fused into the aluminium profile so that fading, corrosion and peeling doesn’t manifest.

20-30 years is the average lifespan of UPVC windows. They’re robust enough and can combat weathering too. Be alert to substandard UPVC profiles, as they typically discolour, stain and become brittle upon prolonged exposure to sunlight and temperature changes.

Timber is way more difficult to preserve than aluminium and UPVC, which only need the following bits of treatment:

  • Clean the frames using a soft non-abrasive cloth and warm soapy water to remove marks.
  • Lubricate the different components every few months.
  • Check on the seals and gaskets occasionally.

Which Provides Greater Security?

Aluminium and UPVC windows are both capable of offering top-rate security when specified to include reliable locking mechanisms and solid glazing.

They’re almost always specified like that, with modern aluminium and UPVC energy efficient windows incorporating a multipoint lock to drastically reduce the possibility of a forced break-in.

Aluminium is too strong to ever bend or warp, a major deterrent for burglars. Despite not quite rivalling aluminium’s resilience, UPVC frames with robust hardware and reinforced locks do a fine job of protecting spaces.

Frames are a critical element of security, but they rely on quality hinges, locks and glazing to offer a proper safeguard.

Will They Improve Warmth and Create a Greener Home?

UPVC windows have a U-value of about 1.2 W/m²K and certain aluminium window systems match that, so yes, they will noticeably enhance home comfort.

Insulating gas sits between the glass panes, geared to restrict heat loss and subsequently increase warmth and energy savings. Thermal breaks are present within aluminium frames, and their job revolves around disturbing heat loss through the material, which is how it outclasses UPVC from an insulation standpoint.

All high-performance windows manage to elevate warmth in the winter months and cool down spaces in summer, relieving the need for excess heater or air conditioning usage. Money savings will arise from lower energy consumption, and this assists the planet’s health.

Choose either material and world-class thermal performance is a given.

You may find an old article we did about how to insulate windows an interesting read as it informs you of ways of increasing the thermal capabilities of energy-efficient windows.

Which Provides Most Energy Efficiency?

The thermal efficiency offered by both is fantastic and they realise great energy performance for differing reasons.

UPVC frames contain multiple chambers and they collectively collect air, slowing down the transference of heat, offering natural insulation.

Aluminium conducts heat very easily, hence the use of thermal breaks within the inner and outer parts of the frame to counter that, intercepting the filtering of excess heat.

Partner the two materials with high-performance glazing and these types of windows for a home will transform your property into an energy-efficient location.

What Look Do They Display and Will They Suit My Home?

When describing aluminium windows, you’ve got to reference their unbelievably slim and smart frames, which are occupied by giant glazed facets, magnifying views. It’s aluminium’s strength that allows for an ultra-sleek design with sufficient support for oversized panes. Most aluminium window installations occur at contemporary residences and when maximum light gain is desired.

UPVC windows are commonly used as a method of mirroring the appearance of classic wooden windows through the harnessing of woodgrain foil finishes. UPVC designs with a wood-like effect normally get fitted into traditional and period abodes and have the upside of limited maintenance, unlike old timber frames.

Most of the countless RAL colours can be chosen to be powder-coated onto aluminium frames, giving you heaps of options.

There’s not as many foil finishes for UPVC triple glazing windows as there are RAL colours for aluminium, but still, plenty of realistic woodgrains and current-day shades.

Some don’t consider the idea of combining the two materials – aluminium bi-folds or sliding doors can be paired with UPVC window frames if the hues of both match or complement one another.

How Do I Select the Most Appropriate Material?

We can’t overlook this question when discussing aluminium vs UPVC windows and the answer is to pick whichever will yield the benefits that most matter to you.

Decide which of these take precedence:

  1. Cost
    UPVC suits those on a lower budget, but it’s worth exploring aluminium, despite the higher cost, if a more robust construction and sleeker design hold greater appeal.
  2. Longevity
    Aluminium generally surpasses the life expectancy of UPVC windows in South Wales and its strength won’t diminish. Saying that, UPVC performs solidly in all areas.
  3. Upkeep
    There’s not much maintenance with both materials. A powder-coated finish ensures that aluminium doesn’t fade or corrode and UPVC only needs to be cleaned infrequently.
  4. Energy Efficiency
    Proper specification enables a modern thermally broken aluminium window and multi-chambered UPVC window to achieve exceptional thermal performance.
  5. Eco-friendly
    Continuous recycling of aluminium causes no reduction in strength, and UPVC provides insulation prompting a lowering of energy usage.
  6. Security
    A marriage of a toughened frame, secure hardware, a multi-point lock and resilient glazing help both to supply a robust defence.
  7. Aesthetics
    Aluminium frames look so classy and the sightlines are enormous. Timber windows can be mimicked with UPVC profiles.

A final few things to pay attention to…

  • Approach 3 installers for quotes to gauge what is a reasonable price and the specifications to expect.
  • Inquire about U-values, PAS 24 and the length of guarantee offered.
  • View the showroom of each installer for a look at their window products.

It’s for you to decide UPVC vs aluminium windows which is better, as all we can do is present you with the facts.

More guidance can be sought from a First Class design expert, who can also talk about soundproof windows, if they’re something you’re just as intrigued in.

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