Steel Look Windows
We manufacture steel look windows to create the perfect features for industrial estates and lofts. This popular look is both attractive and sleek, perfect for properties that are interested in contemporary renovations.
The steel look windows create a sense of sophistication, along with their unparalleled thermal efficiency. If you’re an architect, builder or main contractor, you can find more information from our Nottingham team, who would be happy to answer your questions.

01
Thermal Efficiency
The Decalu110 steel windows provide U-values as low as 1.1 W/m2K with double glazing. Triple glazed steel windows can offer U-values as low as 0.6 W/m2K. This can provide nearly unrivalled insulation against both heat and cold.
02
Marine Grade
Decalu110 steel windows boast marine grade as standard, meaning that they are suitable for high moisture environments, especially those with saline air.
03
Glazing
With the Decalu110 steel windows, you get the option of 12mm – 62mm glazing, to help with both thermal and acoustic insulation.
04
Improved Sound Quality
With the Decalu110, you can achieve noise insulation levels of: RW 47 ( -1; -2). Improving noise insulation is a benefit to both residential and commercial properties.
05
Weather Tested
Our windows are tested to the highest standards and reach
Air Permeability : Class 4 NBN EN 12207
Water Tightness : E 2250 NBN EN 12208
Wind Resistance : Class C5 NBN 12210
Improving Building Sustainably
We here at FastFrame are aware of the waste that is produced throughout the building and construction process. Which is why, as a manufacturing company, we’ve made every effort to reduce that waste with our choice of products, manufacturing Deceuninck.
In addition, shoppers are more appreciative of products that may be recycled. For this purpose, aluminium is ideal. Products made from aluminium may be recycled indefinitely. You may have heard of the circular economy if you’re concerned about environmental impact. Aluminium eliminates the need to save resources.
Please contact us so that we may offer assistance in making the most of our innovative goods.

Technical & Testing Coverage on Products
When it comes to quality control, no one is more stringent than FastFrame, which is why we always check that our products pass regulatory inspections.
We put our Decalu110 steel windows through rigorous testing, including for security and weather resistance, before they leave our factory.
Learn more about the evaluations we conducted on our original flush doors.
Choosing Fastframe
FastFramehas been serving the business community for 15 years as a fabricator and have specialised experience with commercial clients.
As such, we’re well connected to the industry’s leading general contractors, architects, and builders.
Our business has grown over the years, and our wholesale customers have benefited from our expertise in the field for over a decade. Discover the necessary accessibility and colour choices for products that stand out.
Since we’re the only manufacturer in the UK to offer Linktrusion, a technology that’s popular throughout the EU, we’ve earned a certain amount of respect. In addition, we have our very own cutting factory in the United Kingdom.
Contact a member of our helpful team right away if you have any questions.
Deceuninck Aluminium Brochure


Colours for Decalu110 Steel Windows
For our business customers working on huge projects, the ability to precisely match colours is essential. We don’t simply have a list of a few colours available for the Decalu110 and our other aluminium windows. We offer precision colour matching with any RAL colour. We offer the best.
















Our Latest Projects
Read through our latest projects to see how the Decalu110 steel windows have been implemented in installations. View our other products for more inspiration. Get in touch with us, if you’re an architect, main contractor, or builder looking for Decalu110 steel windows.
WANT TO SEE MORE?
Get in Touch
Speak with our Nottingham team for more information about our Decalu110 windows.


Frequently Asked Questions
Do you install?
No, FastFrame is a supply only company. We work specifically with architects, builders and main contractors.
Do you deliver?
Yes! Get in touch with our Nottingham office for more details regarding our delivery process.
What profiles do you offer?
If you’re interested in other aluminium windows, find out more about the Decalu88 and Decalu94 windows that we provide.
Do you recycle aluminium windows?
No, however when you get in touch with us, we may be able to give you information about recycling facilities.
How long for RAL colours?
We have established swift lead times for our aluminium windows. Get in touch with us today to find out more.