24 September 2026
About us
SIVAL is a UK supplier of architectural aluminium systems: thermally broken windows and entrance doors, lift-and-slide and minimal-frame sliders, bi-folds, curtain walling, balustrades and shading. Every system is engineered around EN standards and CE/UKCA marking — so specifiers select with confidence, fabricators build without compromise, and homeowners live with glazing that performs for decades.
Request a free quote
How we can help
One team from first drawing to final fit
01
Supply & specification
Twenty-nine EN-tested systems from one catalogue — windows, doors, sliders and facades — with per-project U-value reports for effortless Part L evidence.
Explore the range02
Fabrication support
Cutting lists, machining data, hardware schedules and same-day technical answers keep our 180+ partner fabricators building accurately, first time.
Talk to technical03
Installation network
Vetted installers across the UK, trained on our systems and covered by insurance-backed workmanship guarantees — quality that stays local and accountable.
Start your project01
Enquiry
Send sizes, drawings or an architect's schedule — by form, WhatsApp or phone. We respond within 2–3 working days.
02
Survey & quotation
A free, itemised, no-obligation quotation, with a technical survey where installation is required. The price you approve is the price you pay.
03
Fabrication
Made to measure on EN-tested systems by our partner fabricators — typically 4–6 weeks from approved survey to delivery.
04
Installation & guarantee
Fitted by approved installers and covered by insurance-backed guarantees, with coating warranties of up to 25 years.
Questions & answers
Essential answers for future clients
How long does a typical project take?
Made-to-measure windows and doors typically run 4–6 weeks from approved survey to installation; stocked profile orders dispatch in 5–10 working days. Your quotation confirms a firm date before anything is fabricated.
How much do aluminium systems cost?
Every project is priced individually — size, glazing, finish and security specification all move the number, which is why quotations are free, itemised and without obligation. Send your sizes and we'll price it within 2–3 working days.
Do you work with homeowners as well as the trade?
Both. Homeowners can order supply-only or be matched with an approved installer; architects and contractors get specifications, CAD details and project engineering support from the same team.
More on thermal breaks, guarantees and regulations on our FAQ page.
Tested & certified
Standards behind every system
CE Marked
Windows and doors type-tested to EN 14351-1 for air, water and wind performance.
UKCA
Full UK conformity assessment across the range, documented for every specification.
PAS 24
Enhanced security testing on entrance doors and windows — engineered in, not bolted on.
Qualicoat
Architectural powder coating to a minimum 60 microns, guaranteed for up to 25 years.
Our blog
All articles 
