Aluminium Windows – What are the pros and cons?

Aluminium Windows

Aluminium windows have become a popular choice for many homeowners due to their sleek, classic appearance and low maintenance requirements.

Whilst they offer numerous benefits, it’s good to understand the potential drawbacks that come with this type of window. So what are the pros and cons of aluminium windows for your home?

Known for their durability and resilience, aluminium windows can last up to 30-40 years without signs of warping, corrosion, or flexing. Their lightweight frames provide excellent sight lines and durability and are more cost-effective compared to timber windows.

However, as with any product, there are certain disadvantages to consider, such as thermal performance and environmental impact. This article will help you to highlight all the important aspects of this much-admired type of window.

Aluminium Windows – Overview

Aluminium windows have gained popularity in recent years due to their sleek and modern appearance, as well as their durability and low maintenance requirements. They are often used both in residential and commercial settings, offering a contemporary look combined with practical benefits.

One of the main advantages of aluminium windows is their resistance to outside weather elements, giving you longevity and value for money.

Aluminium is also a lightweight material, making it easy to manoeuvre and install.

However, there are some drawbacks to aluminium. The material is a poor insulator, which can impact the energy efficiency of your home. This issue can be mitigated by using weather-stripping and thermal treatments.

It’s important to be aware that aluminium windows are usually more expensive compared to UPVc windows due to the manufacturing process. Yet, you may believe the increased costs are justified as you are gaining enhanced durability and unique aesthetics with your aluminium product.

Pros of Aluminium Windows

One notable advantage of aluminium windows is their durability and low maintenance requirements.
Unlike timber windows, they are resistant to warping and rotting and can withstand various weather conditions, making them a cost-effective choice in the long run.

Aluminium’s malleability and flexibility offers a vast range of design possibilities. With various colours, finishes, and glazing options available, you can customise your windows to fit the aesthetic of your home seamlessly.

Energy efficiency is another key factor. To help reduce heat transfer, aluminium windows can feature thermal breaks offering the conscientious homeowner improved insulation and energy-saving benefits.

Home security can also be improved aluminium windows as they provide a robust, sturdy frame structure. You may want to pair this with high-quality locks and glazing, to give you further protection against potential intruders.

Lastly, aluminium windows have a more sustainable profile compared to other window materials. They are 100% recyclable, reducing their environmental impact and allowing homeowners to make a greener choice for their property.

Cons of Aluminium Windows

One major disadvantage of aluminium windows is their poor thermal insulation. Aluminium is a good thermal conductor, meaning that heat can be lost through the frame, making them less suitable if you happen to live in a colder climate.

The manufacturing process for aluminium frames is also more expensive, making them a costlier option for homeowners.

Whilst aluminium is known for its durability, it isn’t completely immune to corrosion, especially in coastal areas with high humidity and salt levels. Oxidation can occur on the surface, leaving you with an unappealing look to your windows.

Whilst today’s modern designs are embracing the ‘industrial look’, aluminium undoubtedly has a common association with commercial use and may not be the preferred aesthetic for some homeowners.
Aluminium windows offer certain advantages when compared with other window types, notably UPVc and timber.

Let’s compare their performance and key features to help you make an informed decision.

  • Cost – Aluminium windows are usually more expensive than UPVc windows, with costs around £400 – £600 per window. Timber windows can be even more expensive, depending on the type of wood used. However, it’s essential to consider the long-term benefits of durability and energy efficiency, when comparing costs.
  • Durability and Maintenance – Aluminium is known for its low maintenance requirements. Unlike timber, aluminium doesn’t warp, rot, or require regular painting or staining. UPVc windows require minimal maintenance, yet they may become discoloured and deteriorate over time. Aluminium has a longer lifespan, potentially lasting for decades with proper care.
  • Energy Efficiency – Both aluminium and uPVC windows can offer good thermal performance when properly designed and installed. Timber windows tend to have naturally good insulating properties; however, aluminium windows with thermal breaks are equally energy-efficient. Careful homeowners will want to look for windows with a high energy rating for the best performance.
  • Aesthetics – Aluminium windows offer slimmer frames, giving a sleek, modern appearance. This allows for more natural light and larger glazed areas. Timber windows provide a traditional, warm look and can be customised with paint or stains. UPVc can look a little chunkier by comparison although today’s technology offers vast improvements.
  • Customisation and Colours – One of the advantages of aluminium windows is the wide variety of colours and finishes available. This enables homeowners to match their windows with their property’s overall design. Timber windows are also highly customisable, but UPVc window customisation options may be limited by comparison.

Maintenance and Care

One of the notable benefits of aluminium windows is their low maintenance requirements. Unlike wood, aluminium does not rot, warp, or develop mould, making it a more suitable option for long-term use. Most aluminium windows available today feature a factory-baked or anodised finish, which further reduces the need for regular maintenance.

To keep aluminium windows looking their best, all that is generally needed is regular care. Simply clean with a soft cloth and a non-abrasive cleaning solution, ensuring that dirt and grime do not accumulate on the surface.
Despite their low maintenance needs, you’ll want to carry out regular checks on the window seals and glazing to ensure their energy efficiency remains optimal.

Aluminium windows are known for their durability, but like all windows, they can benefit from occasional adjustments and repairs.

In summary, aluminium windows are an excellent choice if you’re interested in seeking a low-maintenance window option. Their durability and resistance to common issues faced by wooden windows make them a smart investment for any home.


Aluminium windows are a popular choice for many homeowners due to their durability, low maintenance, and design flexibility. They offer a modern aesthetic with a wide variety of colours and finishes to choose from.

Energy efficiency is another key consideration, and with advancements in thermal breaks, such windows can meet and often exceed, industry standards.

However, it is vital to consider both the advantages and drawbacks when deciding on aluminium windows for your home as outlined in this article.

By weighing up all the factors; the pros and cons, you’ll be able to meet your specific needs and preferences.
In comparison to wood and PVC windows, aluminium certainly stands out – it’s strong, durable and adaptable to design styles.

Weigh up all the pros and cons, decide upon your specific needs and preferences, before finally making this important architectural decision for your home.

Looking for more aluminium? Check out our guide to aluminium doors.

Matt James
Matt James

Hi, Matt here! I started out almost 20 years ago as a teenager working in the family business fitting doors, windows and conservatories. I now run this website to share the best tips and advice for anyone looking to get a good deal on double glazing.

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