Aluminium Windows and Doors Suppliers

08th May 2025

Trusted Aluminium Windows and Doors Suppliers in the UK

Why the right aluminium supplier saves time, money, and stress.

Not all aluminium window and door suppliers in the UK offer the same level of service. Some deliver on time, to spec, and with lasting performance. Others? They cut corners, which leads to missed deadlines, surprise costs, and poorly fitting frames. Sadly, issues like these can derail your project.

That’s where Alimax makes a difference.

Our team has over 20 years of experience working with South England homeowners, architects, and contractors. We know trust is earned through action, so we produce every product in-house with honest guidance and delivery timelines. We’re here for you, whether you’re building from the ground up or upgrading an existing space.

In this guide, we’ll explain how to find a reliable aluminium supplier. We’ll cover what to look for, what to avoid, and how to pick the right partner for your project.

Why Choose Aluminium Over uPVC or Timber?

Renovating a home or specifying materials for a new development? No matter which, aluminium delivers where other options fall short.

If you’re on this page, you likely know that aluminium is strong yet slim and offers more glass and less frame. Due to this, it’s ideal for contemporary extensions or light-filled garden rooms. Unlike timber, aluminium won’t swell, rot, or need repainting. And unlike uPVC, it resists discolouration, lasts longer, and provides a more refined finish.

Modern aluminium frames also meet today’s energy standards. Aluminium windows and doors use thermal break technology and high-performance glazing. This helps cut draughts, boosts insulation, and lowers heating bills. According to GOV.UK’s Energy Saving Materials guidance, upgrading to energy-efficient doors and windows is one of the most effective ways to improve home energy ratings. At Alimax, every frame is fabricated for performance, longevity, and style. This makes aluminium the smart choice for domestic and trade clients across the South.

Types of Aluminium Windows and Doors We Supply

At Alimax, every window and door we supply is fabricated in-house and made to order, giving you complete control over size, style, and finish. If you’re working on a character property or a new-build extension, we can help you find the right system to fit your vision and performance goals.

Aluminium Doors

Our aluminium door systems balance style and security. They are trusted by homeowners and contractors throughout the South.

• The MAXi fold bi-folding system opens up wide spans, creating seamless flow between indoor and outdoor spaces.
• The MAXislide sliding door system maximises natural light with minimal sightlines. It’s perfect for garden-facing living areas.
• We also fabricate designer aluminium entrance doors. These are engineered for strength, weather resistance, and long-term durability. They come with standard multipoint locking and high-performance coatings.

Whether you need a single custom entrance or a full system for a multi-plot site, we’ll ensure your doors are made to fit, built to last, and delivered on time.

Aluminium Windows

Our aluminium windows fit all styles, from sleek modern designs to classic homes needing careful updates.

• Flush and standard casement windows provide a sleek, modern appearance. They also offer great thermal efficiency, making them perfect for home extensions or office upgrades.
• Vertical sliding windows mimic the classic sash style. They are often used in Georgian and Victorian homes to maintain original aesthetics.
• Steel-look heritage windows are a popular choice for barn conversions and listed buildings. They blend vintage charm with the modern performance of aluminium.

All Alimax windows offer a variety of choices. You can choose from different glazing options, such as double, triple, and acoustic. There are also RAL colour finishes, including dual aspect, and various hardware styles to choose from.
 

What to Look for in a Reliable Aluminium Supplier

Choosing the right supplier isn’t just about the product. It’s also about knowing that what arrives will fit perfectly, work well, and come with genuine expertise.

At Alimax, we build long-term relationships with clients because we understand what matters:

• Custom fabrication: Each frame is made to your exact dimensions, with no compromises or awkward adjustments on site.
• UK-standard compliance: Our systems are made to meet PAS 24 security standards. They also meet thermal performance targets set by Part L of the Building Regulations.
• Direct support: With over 20 years of real-world experience, we provide clear, helpful advice.
• Controlled lead times: Because we fabricate in-house, we’re not at the mercy of third-party delays. That means fewer hold-ups, better coordination, and smoother installs.

Whether it’s a one-off home or a large housing development, you can rely on us. We’re here for you technically, professionally, and personally. Alimax is trusted by contractors, developers, and trade installers across Dorset and Hampshire.

Get It Right the First Time with Alimax

Trust, timing, and technical precision are built in just for you.

When sourcing aluminium windows and doors, you need more than a product. You need a partner who understands the pressures of site timelines — someone who grasps the need for reliable specs and the importance of long-term performance.

That’s exactly what we deliver at Alimax. Our local expertise, in-house manufacturing, and quick support ensure you get custom systems. We’ll deliver these on time, in perfect working order, and custom-fit to your space, whether you’re upgrading one door or handling a whole project.

If you’re ready to take the guesswork out of supply and get the job done right, we’re here to help.

Call 01425 205465 or contact our expert team. Let’s sort out your aluminium windows and doors properly and professionally.