Are metal windows right for your home? Experts explain the pros and cons you’ll need to weigh up before deciding

Metal windows and doors can be a great way to update your home, whether you are looking for something to suit a contemporary home or to maintain the style of a period property.

When it comes to replacement windows, you might be weighing up a few different types of window to see which suits your property and your budget the best. Metal windows are increasingly popular and can suit a variety of projects, but they need careful thought to make sure they are the right fit.

We've spoken to metal window experts to create this ultimate guide, covering everything from the different materials you can get and how much they cost, through to the pros and cons and ultimately, whether they are a good solution for your home.

What types of metal windows can you get?

Metal windows tend to be made using steel or aluminium, but composite versions are also available that have the metal frame externally and a wooden frame internally.

Metal window frames are available in a variety of colours (and you may even get them colour matched to suit your home exactly), but grey and black frames tend to be the most popular.

You might hear black steel windows in particular referred to as Crittall windows. Legally however, this term should only be applied to windows made by the company Crittall Windows.

While the focus of this article may be on windows in particular, metal-framed glazing also extends to patio doors and roof windows as well as internal solutions, like fixed partitions and screens.

Are metal windows a good idea?

In the past metal windows may have earned a bit of a bad reputation, but manufacturing advancements mean they can be a really good idea for your home, as Russell Ager, MD of Crittall Windows, explains: 'Unfortunately, more often than not, metal windows aren’t considered a viable option for homeowners because historic issues with their performance continue to have a strong influence. However, modern steel windows are worlds away from those that were manufactured decades ago.

'For instance, while there’s a misconception that metal windows can’t keep homes well insulated, this isn’t the case. In fact, steel windows, that have been made to the highest standard, achieve exceptional thermal performance that deliver the same results as uPVC alternatives.'

And it's worth weighing up their pros and cons before you decide either way. Thomas Oldham, Co-Founder of UK Construction Blog adds: 'Metal windows are known for their long lifespan, often lasting 40 to 50 years with the right care. Their slim frames let in plenty of natural light, which can really brighten up a room. Plus, they offer great security and fire resistance, giving you peace of mind. However, without thermal breaks, they can conduct heat, which can hurt energy efficiency, especially in coastal areas. Special coatings can help with corrosion, and condensation is something you’ll want to keep an eye on too.'

Ian Richardson, owner of GFD Homes, agrees: 'Metal windows also offer the benefit of being finished in countless different colours and styles, allowing extensive customisation to suit a variety off home styles. Their sleek, slim frames create a modern and sophisticated aesthetic, which is particularly appealing in contemporary homes.

If you are weighing up uPVC versus aluminium windows, Ian says: 'Additionally, metal is a very strong material, far stronger than uPVC, so much bigger panes of glass can be used without the need for bulky frames, to enable the most amount of natural light and views.'

Pros of metal windows

• Available in bespoke sizes and colours to match or complement your property
• Can suit contemporary and period homes, and are ideal for creating an industrial look
• Can be resistant to warping and rust
• Powder coated frames won't need to be repainted
• Aluminium frames are a lightweight alternative to steel
• Frames are slim, maximising views and light ingress
• Metal windows offer good fire resistance
• Frames can feature thermal breaks that prevent heat loss or gain that can affect the ambient temperature in your home.

Cons

However, there are a number of drawbacks to keep in mind, as Ian explains: 'The most notable disadvantage is the cost - metal windows tend to cost more to install than options like uPVC. Their lifespan and longevity, however, guarantee that they frequently end up being a good investment in the long run.'

• Metal windows are more expensive than uPVC
• Steel frames can be heavier than other types of windows, which can affect installation and opening
• If you live by the coast, the salty air could cause corrosion
• Without thermal breaks, they can make your home hotter in the summer and colder in the winter

How much do metal windows cost?

The amount you pay for your metal windows will depend on frame material, glass specification, size and configuration.

Amelia Gaughan, Head of Marketing at Affordable Windows Group, parent company of Decorio, adds: 'Traditional steel windows sit at the top end of the market, which is why many homeowners are turning to aluminium alternatives that offer the same aesthetic at a more accessible price point.' Metal windows are bespoke, which tends to command a higher price tag and a longer lead time too.

In terms of cost, Thomas says: 'Aluminium windows usually cost between £320 and £960, including installation, while steel windows can set you back anywhere from £800 to £3,200. For a home with 10-15 windows, you’re looking at around £6,400 to £12,000 for aluminium or £16,000 to £36,000 for steel. Prices will vary based on the specifics of your project and where you live, so it’s worth shopping around for the best deal.'

If you want frames in a bespoke colour, that may cost more too. You may also pay more if you want triple glazing, and some suppliers may charge additional fees for frames that feature specific coatings, so make sure you get quotes from multiple suppliers and make sure you are comparing like-for-like.

Are metal windows more expensive than uPVC?

Upfront costs for metal windows are usually more expensive than uPVC windows, as the materials and manufacturing process incur higher costs.

But with their long-life span and low maintenance, metal windows could last longer than uPVC alternatives, which may make them cheaper in the long run.

Do metal windows need a lot of maintenance?

In general, metal windows tend to be incredibly low maintenance, but this may depend on the manufacturing process. Frames that have been galvanised are resistant to rust, while those that have been powder coated will not need to be repainted.

But it's still important to keep an eye on them, as Thomas says: 'They’re low-maintenance, but it’s still a good idea to regularly check the weather seals to make sure everything’s holding up.'

Will metal doors and windows suit my home?

Whether metal-framed glazing will suit your home depends on a couple of different factors including your home's architectural style.

Metal windows can look particularly authentic on Victorian and Georgian style homes, maintaining the sought-after character that comes with these homes.

If you are after a much more modern aesthetic, then metal windows can also be ideal. Teamed with contemporary white render, grey metal frames can create a striking look.

But you should also take into account whereabouts you live and the climate the metal frames may be exposed to. Thomas explains: 'When picking metal windows, it’s important to consider the climate. If you're in a place with extreme temperatures, thermal breaks and good weatherstripping are definitely worth looking into.' He adds: 'If you live by the coast, marine-grade finishes are a smart choice to protect against harsh weather.'

Where to buy metal windows

• Clement Windows
• Crittall Windows
• Everest
• Fabco
• ID Systems
• IQ Glass
• Origin
• Schueco
• The Heritage Window Company
• Vufold
• You can also look for a member of the Steel Window Association

Once installed, make sure you know how to clean windows so they'll last as long as possible.