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Aluminium Windows
Six systematic casement and sliding window series engineered for UK climates — up to 45 dB acoustic, typhoon-rated, German engineered hardware.
Overview
Engineered for UK architects and specifiers
MAZLOKS aluminium windows combine ultra-narrow sightlines with thermally broken profiles to deliver gallery-grade daylight, premium acoustic performance and AAMA-grade weather-tightness. Each series is engineered around a different brief — from heritage replacement to acoustic retrofit and panoramic new-build openings — so specifiers can match performance to project without compromise.
- Heritage replacement with slim sightlines
- Acoustic upgrade near rail, road or flight paths
- Panoramic openings on contemporary new-builds
- High-rise and coastal exposure (typhoon rated)
- Passive house and low-energy retrofit
Performance at a glance
- Acoustic
- Up to 45 dB Rw
- Air tightness
- Class 4 (×10 baseline)
- Water tightness
- Class E1200 (×5 baseline)
- Wind load
- Class C5 / +9 industry
- Thermal
- Uw from 1.0 W/m²K
- Hardware
- German engineered, 25-yr cycle tested
Series catalogue
6 engineered series

Casement window
110-117 Systematic Casement
Triple-seal casement window with German engineered hardware and 304 stainless mesh screen.
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Large acoustic casement
110-117 Acoustic
Large 5-chamber acoustic casement delivering up to 45 dB sound reduction.
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Inward-opening casement
90 Casement System
Inward-opening casement with micro-ventilation and TPS, TP, PS variants.
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Side-press sliding window
ES118 Side-press Window
Side-press sliding window engineered for subtropical climates, 150–250 kg sash.
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Panoramic sliding window
CT140 Panoramic Sliding
Panoramic sliding window with typhoon-resistant adjustable rollers, 250 kg sash.
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Powered lifting window
Electric Lifting Window
Powered lifting window with 50% opening area and remote control.
View specsFrequently asked
Aluminium Windows — specifier questions
Are MAZLOKS aluminium windows suitable for UK Building Regulations?+
Yes — every series is supplied with U-values, PSV ventilation calculations and CE/UKCA documentation compliant with Approved Document L (energy), F (ventilation), Q (security) and B (fire) where applicable.
What acoustic performance can I expect?+
The 110/117 acoustic series reaches 45 dB Rw with laminated acoustic glass — typically a 30–35 dB reduction at the listener compared with single-glazed units. We supply project-specific acoustic certificates on request.
What is the lead time?+
Standard finishes ship in 8–10 weeks ex-works, custom RAL adds 2 weeks. UK delivery and survey are coordinated by our trade desk.
Ready to get started?
Request a Aluminium Windows Quote
Free consultation | Competitive pricing | Nationwide installation
