Slimline aluminium windows bring style, security and energy saving
Featuring high-security multi-point locking, our versatile slimline aluminium windows are both sleek and safe.
The ideal option for replacing old timber and steel-framed windows, we deliver quickly and direct-to-site for an uninterrupted installation process.
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Our slimline aluminium windows offer optimal thermal efficiency, achieving U-values as low as 1.2 W/m²K for a triple glazed aluminium window with a thermally broken frame.
Slimline aluminium windows are highly secure, with toughened safety glass and multi-point locking systems. Additionally, they are PAS 24 certified and Secured by Design accredited.
We exclusively use top-quality aluminium, which makes our windows strong and durable for decades. Aluminium can withstand pressure, harsh weather conditions and damage.
What our clients have to say
Very timely and professional
“We had a few issues with product manufacture. Brought to AluFold’s attention – problem solved and very timely and professional. Errors can occur, but it’s how they are dealt with!”Derek Aspinwall
Manufacturing IssueAmazing service
“Our windows and bifold are excellent quality. Jimmy who has just delivered some replacement windows for me was lovely, helpful and friendly a pleasure to deal with. Thank you!”Maxine Haycock
Replacement windowsResponded immediately to emails
Followed up all queries and appeared to be personally invested in helping us. Really wonderful against every single other company we have dealt with on our building project. Can't say enough good things. Thank you so muchMarcia Mihotich
Building project
Aluminium Slimline Windows
- Range of colour, cill and configuration options.
- Integrated deep head outer frame profile for trickle ventilation.
- Enhanced security, sound insulation and UV fade protection.
- 10-year guarantee.
Excited to work together on your next project?
Full-service support, from start to finish
We’re with you from idea to execution. Tap into your AluFoldDirect team for expert guidance at the critical early stages of compliance, and utilise our advanced 3D design tools. We’ll find the aluminium products to best suit your project, with transparent pricing and budget planning, before we power through to project management, installation and on-site support.
Frequently Asked Questions
Not the answer you were looking for? Our expert team are always on-hand for advice and inspiration!
How long is your delivery time?
We know you need to stay on track, which is why AluFoldDirect guarantees orders of our aluminium windows and aluminium doors are delivered direct-to-site in our unmarked vans within two weeks of placing your order.
Can I view your products before purchasing?
Yes, you can arrange a visit to our state-of-the-art showroom in Blackburn. Our Aluminium Glazing Design Centre features full-size working product displays, allowing you to see and feel our products first-hand, and tap into our expert team.
Are your products compliant with Building Regulations?
Yes, we can meet any thermal requirement. Our Solutions Series of aluminium glass doors, slimline aluminium windows, and custom rooflights offers U-values ranging from 0.8 W/m²K for passive performance to new build-ready 1.2 W/m²K and 1.4 W/m²K for UK Building Regulation compliance.
How do you work with installers, developers and architects?
Our customers don’t see us as a supplier. Partnering with AluFoldDirect means access to both residential and commercial opportunities, expert advice, training, advanced design tools, on-site support – and everything you need to deliver seamless and profitable aluminium projects.
Contact us
Our friendly team would love to hear from you.