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Double Glazed Windows
Standard high-performance double glazing for thermal efficiency.
Double Glazed Windows
Why choose Double Glazed Windows?
Double glazed windows are the standard for modern UK home insulation. Featuring two panes of high-performance glass separated by an argon gas-filled cavity, they trap heat inside your home, block out external noise, and eliminate drafts. At Lux Windows, all our double glazing installations are FENSA-certified and carry our 10-year warranty.
Best suited for
Standard domestic properties looking for general insulation improvements and energy savings.
Key Product Features
- Argon gas filled cavity for superior thermal insulation
- Warm-edge spacer bars to prevent condensation along glass edges
- Low-emissivity (Low-E) glass coating that reflects heat back into the room
- FENSA-certified energy efficiency rating of A or above
Looking for something else? Browse all windows
Double Glazed Windows Benefits
Engineered for premium performance and complete peace of mind
Energy Efficient
Drastically cuts down heat loss, reducing household energy bills.
Highly Secure
Toughened safety glass option paired with robust frame lock bolts.
Low Maintenance
Durable PVC or aluminium profiles require only simple cleaning.
No More Draughts
Double weather-tight gaskets keep out cold wind and rainwater.
FENSA
Approved Installer
IWA Member
Consumer Protection
10-Year
Full Warranty
INSURED
Insurance-Backed Cover
PVC vs. Aluminium — Finding your perfect fit
We specialize in both high-grade PVC (our core product) and architectural-grade aluminium. Whether you seek traditional warmth or modern slimline designs, we have the ideal material configuration for your project.
High-Grade PVC (Core Range)
Our primary focus. Incredibly cost-effective, virtually maintenance-free, and delivers class-leading energy ratings to keep heating bills low.
Architectural Aluminium (Premium)
Strong, lightweight, and features ultra-slim sightlines. Ideal for large glass apertures, bi-folds, and contemporary architectural properties.
Quick Comparison
Our Simple Customer Friendly 4 Step Process
Free survey and quote
No obligation, no pressure
Tailored recommendation
Products suited to your home and budget
Expert installation
FENSA & IWA approved certified fitters
Warranty & aftercare
10-year and insurance-backed cover
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Ready to transform your home with Lux Windows?
Contact our FENSA-certified team today. We offer expert advice, bespoke design recommendations, and accurate, transparent quotes tailored to your budget.
FENSA & IWA APPROVED · 10-YEAR INSURANCE-BACKED WARRANTY