Our aluminium steel replacement windows are designed to replace existing steel frame windows. We have a number of aluminium steel replacement window products to suit, namely stepped look or putty line profiles in Royale, Heritage and Beaufort. They replicate the appearance and slim sight-lines of traditional Steel frame windows, using a thermally broken aluminium profile. They provide an authentic appearance with much improved security, thermal efficiency and of course are double glazed.
While it is possible to use new double glazed steel windows to replace your existing steel single glazed windows, we prefer the advantages of aluminium steel replacement windows, which are double glazed with argon or krypton gas filled sealed units and have a polyamide thermal break to improve thermal efficiency.
Our aluminium steel replacement windows come with many standard security features such as:

From a georgian bar matrix to art deco look to plain window design
Use our aluminium stepped look steel replacement windows to match your original stepped look steel window profile.
At You Choose, we offer a 10 year insurance backed guarantee as standard and your installation will also come with a FENSA certificate unless you are part of a building that is higher than 18m, in which case we can assist you in obtaining building regulations instead
If you are thinking or replacing your old steel frame windows you can, of course, install new double glazed steel frame windows, but this may still leave you with an issue – poor thermal efficiency.
Our aluminium steel replacement windows come in a variety of styles and options to replicate your original steel frame windows. They have very slimline profiles and have a polyamide thermal break, which allows the windows to meet or exceed thermal building regulations. They come with a choice of different powder coated colour finishes and many different handle options.
Double glazed sealed units come with argon gas as standard and we also use krypton gas for our Royale windows.
They have many security features such as multi point locking, key locking handles and all our openers and dummy openers are internally glazed, meaning that we can install these windows from the inside of your property. We have recently developed a safe method of installing your new windows from the inside, which can save literally thousands of pounds on expensive scaffolding costs, particularly on a block of flats.
Couple this with our expert installers and friendly professional approach, why not request a call to see how we can help you?
A massive thank you to you & your team for the work last week. The new windows look fantastic and I can see great care has been taken to refit the secondary glazing.
J Cage, London, SE1
As an absentee landlord I very much appreciated hearing from the tenant at my flat, of the care taken with their technical equipment by the team at YouChoose. We found them to be tidy, professional and swift technicians. Thank you for a job well done. I am delighted with the result.
W Thomson, SE1
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After living in my flat for 18 months with the old windows, the new ones provided by You Choose made a huge difference in the quality of life. The condensation is now almost non-existent, the thermal protection in the flat is much better and you don’t feel a draft close to the windows. I am also grateful to Tim and Matt who took care of all small details/requests I had throughout the process!
Z Gjorgievski, London, SE1Choosing new aluminium steel replacement windows can be a tricky task so we have put together some popular FAQ, which you may find helpful.
We can usually match the design of your old steel windows depending on how big the openers are. Our slim sight lines mean that they can be a very close match.
A thermal break is a non-conducting material (polyamide) which separates the inside from the outside of the frame. This improves the thermal characteristics of the window.
Aluminium windows are strong and can match the steel windows sight lines compared to say a pvc-u window which is much chunkier. They are much more thermally efficient than steel as they have a thermal break made from polyamide. They are also less expensive.
All things being equal our new aluminium steel replacement windows will have less condensation than original steel windows, see eighth photo in gallery above, but condensation is caused by the relationship between temperature and relative humidity, so it is still possible to get some condensation with your new windows, depending on what happens inside your property. There are a few actions you can take to minimise condensation, which we can advise upon.
Our aluminium replacement steel windows come with shootbolt locking and key locking handles and many other security features as standard, so are very secure.
Firstly, we will be installing new double glazed casement windows that are no longer drafty, which is going to make a huge improvement. Secondly, if not using our Royale window, you can consider installing 6.4mm or 6.8mm stadip laminate acoustic glass on one of the two panes of glass, the other being 4mm. This will improve the acoustic impedance by a further 10% to 15%.
We now specialise in installing windows without the need for scaffolding in blocks of flats. We have a safe methodology to do this, which has been approved by our safety consultant.
We can reproduce your horizontal bars using astragal bars which consist of duplex bars in between the glass and plant on bars on the inside of the inside pane and the outside of the outside pane. They create the illusion of separate panes, but in reality they are not!
We recommend going out or being away while we are installing your new windows so that we can keep disruption to a minimum. We will make good any damage to plaster work up to decorating standard.
You will need to check with the local planners, which we can help with but the chances are likely that it will be allowed, depending on your product choice, which we can assist with.
As all of our aluminium windows are powder coated you can have them in any RAL colour, You can even have dual colour, that is a different colour inside and out if you wish!
