North West Metal Sections
Steel uPVC Window Reinforcement
Fabricators need window reinforcement that performs to specification, arrives on time, and fits the profile exactly. Off-the-shelf sections create production delays when dimensions don’t match. At NW Metal Sections, we manufacture bespoke and standard galvanised steel uPVC window reinforcement to your exact requirements. We offer 24-hour delivery across the UK and BBA certification recognised by all major system houses.
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uPVC Window Reinforcement
When your production line depends on consistent and correctly specified steel reinforcement, you require a supplier with not only the sector knowledge to get it right, but the logistics capability to keep your project on track.
At NWMS, we’ve spent years working directly within the uPVC window systems and fabrication sector. The knowledge we’ve built up in that time means we can identify the correct standard section for your system, or develop a bespoke profile where one doesn’t exist.
We can ensure durability, structural integrity, corrosion resistance, and more. Call 01744 886980 to speak to our team.
Why choose NWMS for reinforced uPVC windows?
At NW Metals Sections, we’re proud of our years of service to the window and door reinforcement industry. Not only are we reliable, but we’re certified and compliant with all the latest UK regulations.
- BBA Certified — We hold BBA certification, which is the accreditation required by most system houses for approved supplier status. If you're working from an approved supplier list, we're already on it.
- BS EN 10142 and BS EN 10143 Compliant — We purchase prime galvanised steel directly from UK steel mills. All coils and sheets are accredited to BS EN 10142, with tolerances conforming to BS EN 10143 and steel grade and coating conforming to DX51 D&Z and DX51 D&ZF.
- ISO 9001:2015 Accredited — Every order is fulfilled to a documented, auditable quality management process, giving your procurement team the assurance they need.
24-Hour Nationwide Delivery — Using our own dedicated transport fleet, we deliver multiple loads of sections to window and door manufacturers across the UK, with 24-hour delivery available to keep your production schedule running.
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Steel uPVC window reinforcement applications
NWMS galvanised steel sections are used by fabricators across the UK in:
- Residential window and door systems – Casements, tilt-and-turn, sash, and bi-fold door frames requiring PAS 24 enhanced security performance.
- Commercial and high-rise glazing – Curtain wall and unitised glazing systems where structural integrity is load-bearing.
If your application isn’t listed, contact the team. We regularly develop profiles for non-standard requirements.
Custom steel reinforcement profiles for non-standard window systems
Standard profiles don’t always suit non-standard windows. We work directly with fabricators to develop custom cold-roll-formed steel reinforcement sections where off-the-shelf solutions won’t work – matching wall thickness, corner radius, and coating grade to your system house specification.
Every profile is manufactured to BS EN 10142/10143, galvanised to DX51 D&Z/ZF grade, and produced under ISO 9001:2015 – the certifications your procurement team needs to sign off on a new supplier.
Our in-house team handles design and manufacture, working directly with you to engineer a cost-effective solution that meets your strength and dimensional requirements. To discuss a bespoke profile requirement and get an indication of lead times, get in touch with our friendly team on 01744 886980.
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Steel vs aluminium window reinforcement – which is right for your system?
| Factor | Galvanised steel (NWMS) | Aluminium |
|---|---|---|
| Tensile strength | Higher – better structural performance in wide spans | Lower tensile strength for equivalent section size |
| Weight | Heavier | Lighter |
| Corrosion resistance | DX51 D&Z galvanised coating – suitable for standard UK installations | Naturally corrosion-resistant – preferred in coastal or exposed environments |
| Cost | Lower material cost at equivalent structural performance | Higher cost per kg and per section |
| Thermal conductivity | Higher conductivity – thermal break design needs attention | Higher conductivity – the same consideration applies |
| System house approval | BBA certified, approved by major system houses | Varies by supplier and system |
| Bespoke profiling | Cold-roll-formed to custom dimensions – minimum lead times | Extrusion tooling required – higher setup cost |
| Recyclability | Fully recyclable steel | Fully recyclable aluminium |
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If our standard profiles do not exactly meet your requirements, please contact us. We would be pleased to advise you!
Frequently Asked Questions
What steel grades do NWMS window reinforcement sections come in?
How long does bespoke profile development take?
Can NWMS manufacture reinforcement for a custom profile?
Are NWMS reinforcement sections BBA certified?
Do you offer nationwide delivery for uPVC steel reinforcement?
Custom & Bespoke
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Get In Touch
If you need more information then please don’t hesistate to get in touch with us via our online contact form or give us a call on: 01744 886980