🏠Aluminium Windows 🚪Aluminium Doors 🪟Sliding & Bi-Fold Systems 🌡️Energy Efficient Solutions 🌧️Weather Resistant Frames 🛠️Custom Made to Measure 🎨Modern & Slimline Designs 🔒High Security Locking Systems 🏢Residential & Commercial Projects ♻️Low Maintenance & Long Lasting 🇬🇧UK Manufactured Quality 📞Get a Free Quote Today
🏠Aluminium Windows 🚪Aluminium Doors 🪟Sliding & Bi-Fold Systems 🌡️Energy Efficient Solutions 🌧️Weather Resistant Frames 🛠️Custom Made to Measure 🎨Modern & Slimline Designs 🔒High Security Locking Systems 🏢Residential & Commercial Projects ♻️Low Maintenance & Long Lasting 🇬🇧UK Manufactured Quality 📞Get a Free Quote Today

Alitherm Range

Proven Reliability

GB Trade Alitherm 700

The G.B Trade Aluminium Alitherm 400 Window combines timeless aesthetics with advanced thermal performance. Perfect for both new build and refurbishment projects, it brings clean, contemporary styling and superb energy efficiency to any property.
Price Starting From +

Single pain £450

Dual Pain £800

Color Choice +

White, Black, Grey, Custom Colors

Energy Performance +

High energy efficiency with insulated glass options.

Size Min - Max +

Min: 600mm | Max: 3000mm

Why Choose Precision Aluminium Alitherm 700 Windows

The Alitherm 700 system builds on the success of Smart’s high-performance range, featuring enhanced polyamide thermal breaks and deep-profile sections for larger openings. It offers exceptional energy efficiency, robust security, and a sleek architectural appearance. The design allows for side-hung, top-hung, and tilt-before-turn configurations, giving ultimate flexibility without compromising on style or performance.

Effortless Quoting & Installation

Precision’s in-house fabrication and tailored quoting process make ordering straightforward. Each Alitherm 700 window is built to measure, fully tested, and ready for seamless installation. Our technical team are always on hand to guide you through specification, delivery, and after-care support.

    Request a FREE Estimate









    Sleek Sightlines & Design Flexibility

    With slim sightlines and an extensive colour range, the Alitherm 700 enhances any property—from modern architectural builds to high-end refurbishments. The system delivers superior thermal insulation, weather resistance, and acoustic performance, ensuring year-round comfort and peace of mind.

    Fast Lead Times & Reliable Support

    Expect quick turnaround times and dependable communication throughout every stage of your project.

    FREE ESTIMATE

    Why G.B Trade Aluminium?

    Powder Coated

    The powder-coated exterior of our aluminium doors not only offers a wide range of colours, but also provides a thicker, smoother, and more durable finish compared to standard coatings, ensuring long-lasting beauty and resilience in every climate.

    Multiple Colours

    We offer over 150 colours in matt, satin, or gloss, with the flexibility to choose different shades inside and outside for a completely customised finish that complements your home’s style perfectly.

    Low Maintenance

    From weather-resistant powder-coated aluminium to precision-engineered bearing-guided rollers, every detail is carefully designed to minimise upkeep and ensure your doors remain reliable, easy to use, and low maintenance throughout years of daily living.

    Frequently Asked Questions ?

    Who are GB Trade Aluminium ?

    GB Trade Aluminium is a UK-based specialist in high-quality aluminium solutions for homes and businesses. We combine expert craftsmanship with precision engineering to deliver exceptional results.

    We are located in Newtown, Cheshire serving customers across Greater Manchester, Cheshire, Lancashire and Derbyshire.
    Yes, we provide aluminium solutions for homeowners, builders, architects, and commercial property owners.

    Yes, we provide aluminium solutions for homeowners, builders, architects, and commercial property owners.

    Yes, we provide free, no-obligation quotes tailored to your requirements.

    Absolutely. We can work with you to refine your design ideas, recommend the best aluminium solutions, and ensure everything meets building regulations.

    Simply contact us via phone, email, or our online form and we’ll arrange a consultation to discuss your project.

      Request a FREE Estimate