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Slimline steel replacement windows & doors

An excellent aluminium replacement for traditional steel windows and doors in a range of colours.

METICULOUS ATTENTION TO DETAIL

Our aluminium slimline steel replacement windows and doors are crafted to perfectly emulate the timeless appeal of traditional steel windows and “crittal” style windows (Please note that we do not supply the Crittall brand). Meticulously designed with a keen attention to detail, our windows and doors are so well-crafted that it’s difficult to distinguish them from steel windows. Our slimline steel replacement windows feature joints that closely resemble those found on traditional steel windows, further showcasing the exceptional craftsmanship that goes into their production.

Our slimline aluminium steel replacement doors and windows are extremely popular due to their ability to replicate the sleek look of some traditional steel windows while still maintaining the charm of your original heritage windows. We even offer french door styles that can be replicated to complement your existing aesthetic. Our steel replacement windows and doors can be used both externally and internally, making them a versatile and elegant choice for any property.

PERSONALISATION

Looking to add a personal touch to your new aluminium steel replacement doors and windows? We offer over 200 RAL colours to choose from, as well as 12 stock colours at no additional cost. Plus, with our twin colour options, you can create a unique look that perfectly suits your style. And for those who want to embrace the heritage feel, we have a bespoke range of handles to choose from. Visit our Brasted showroom to view our full range of windows and doors on display and discuss your project with our experts.

We also offer free onsite consultations and no-obligation quotations, with friendly and unbiased expert advice to help you make the right choice. All our steel replacement and art deco replica window and door products are on display in our Brasted showroom, which is easily accessible from Kent, Surrey, and Sussex.

With aluminium, you can achieve the contemporary art-deco look you want in a replacement steel window or door. Contact us today to find out more.

Why choose slimline steel replacement windows made of aluminium?

  • Low U Values + excellent thermal efficiency
  • Slim sightlines
  • Low maintenance
  • Over 200 RAL colours to choose from + stock colours
  • Complies with modern Building Regulations.

Our Google Reviews

  • Emma, Susanne and the team offer a first class service from start to finish. It's the second time we've used The Window Sanctuary, and we will continue to do so as we change more of our windows and doors. Great communication, great installation process, we love our windows! Thank you

    Annette F Avatar Annette F
  • I came to the Window Sanctuary after another window company had sold and fitted windows that were completely inappropriate for replicating the original 1920's Crittall windows, although this was the brief they had. The Window Sanctuary proved to have an entirely different approach: they could not have taken more care to ensure that every detail mirrored the Crittall originals, and that the windows were exactly what I wanted. I understand that the Window Sanctuary has generations of window making and fitting behind them, and it shows. Some of the new windows had to go into the original 1920's frames, and the WS fitting team's joinery skills were outstanding in being able to rout back the wood really carefully to make sure that the new windows had a completely solid fit. This was in contrast to the previous company's fitting team, who I can only describe as butchering the frames to get their windows in, causing a waterfall inside the windows when it rained. The Window Sanctuary are a team of very skilled craftsmen: I learned first hand how rare this is. Thank you.

    Lisa Blatch Avatar Lisa Blatch
  • We had a few quotes for 2 x black aluminium windows and French aluminium doors with fixed side panels. The Window Sanctuary were the most competitively priced and were quick to respond to our quote request and follow up questions. The timeline they gave for delivery and installation was accurate and the installers did a great job. We are really happy with our high quality and stylish looking doors and windows! Makes such a difference to our house.

    Anna Clarke Avatar Anna Clarke
  • The Window Sanctuary replaced all my old Crittal Windows with slimline heritage aluminium windows to retain the period look of my grade 2 listed property and furthermore replaced the old rotten timber sash windows with new hardwood timber sash windows bringing the property back to life. The guys were hardworking very knowledgeable and very professional I wouldn’t hesitate to recommend this firm highly enough Warm regards Fraser Owen

    Fraser Owen Avatar Fraser Owen
  • Really enjoyed dealing with the Window Sanctuary. The office team are very friendly and courteous and the installation team were good fun and very thorough. The finishing touches were beyond my expectations. We're delighted with our new windows and the enhanced view they provide.

    Tim Glynne-Jones Avatar Tim Glynne-Jones
  • From the start The Window Sanctuary were friendly and polite and a pleasure to deal with. They offered lots of advice, especially helpful as our installation was a little tricky. We also had lots of issues with our extension which caused delays our end, which The Window Sanctuary worked around, even though it meant the installation had to be carried out in two lots, when initially it was meant to happen in one go - they were very accommodating and patient, thank you! Would definitely recommend.

    Nicola Bandy Avatar Nicola Bandy
  • The Window Sanctuary supplied and installed a window in the current house we are restoring. We were extremely happy with the service and quality of the window. Would definitely recommend this company for your period windows.

    sheldon partridge Avatar sheldon partridge
  • Great family company. Quality workmanship. Highly recommended.

    Mark Childs Avatar Mark Childs
  • The Window Sanctuary supplied and installed our patio doors. We are extremely happy with the service they provided and couldn’t be happier with how the doors have turned out. They are exactly the look and quality that we were after.

    ben jeffree Avatar ben jeffree
  • Great customer service. Good quality product. We needed a door adjustment and they have sent someone the next day.

    Lucy NNN Avatar Lucy NNN

CONTACT US OR VISIT OUR SHOWROOM TO DISCUSS OUR
ELEGANT RANGE OF WINDOWS AND DOORS.