We make homes warmer
Up to a 60% reduction in heat loss
Premium glazing engineered for comfort, silence & lasting efficiency
FENSA Registered
All installations certified and fully compliant with UK building regulations
Rapid Installation
Minimal disruption — most homes completed in a single day
All Property Types
Period homes, modern builds, listed buildings and conservatories
10-Year Guarantee
Every installation backed by our comprehensive written guarantee
London's trusted glazing specialists
For over two decades, UltraGlass has helped London homeowners and businesses create warmer, quieter and more energy-efficient spaces. Our expert team brings precision craftsmanship and premium materials to every project.
From Grade II listed buildings in Mayfair to modern developments across the capital, we understand that every property is unique — which is why every solution we offer is bespoke.
Glazing solutions for every property
Whether you're upgrading a Victorian terrace, retrofitting a listed building or glazing a new conservatory — UltraGlass has the expertise to deliver perfection.
Secondary Glazing
Retain the character of your original windows while dramatically improving thermal and acoustic performance. The preferred choice for listed and heritage properties.
Double Glazing
Premium double-glazed units providing exceptional insulation, noise reduction and security for modern and period properties alike.
Triple Glazing
The ultimate in thermal performance. Our triple-glazed units achieve near-Passivhaus standards for maximum year-round efficiency.
Conservatory Glazing
Transform your conservatory into a comfortable, usable room year-round with our specialist roof and wall glazing systems.
Heritage & Listed Buildings
Conservation-compliant solutions that meet planning requirements without compromising on thermal efficiency or acoustic comfort.
Commercial Glazing
Office buildings, retail spaces and commercial premises — glazing solutions built for performance, longevity and low maintenance.
Engineered for the long term
We don't cut corners. Every UltraGlass installation is measured, crafted and fitted to the highest standard by our directly employed teams.
Bespoke Measurement & Design
Every window is custom-measured by our in-house surveyors. No off-the-shelf solutions — only precision-engineered glazing tailored to your property.
Premium European Materials
We source glazing units exclusively from Europe's leading manufacturers. Every product meets or exceeds current UK building and energy regulations.
Expert London Craftsmen
Our installation teams are directly employed — never subcontracted. Fully trained, DBS-checked and genuinely proud of their craftsmanship.
Frequently Asked Questions
Answers to the questions we hear most often about glazing for London homes.
Our glazing can reduce heat loss through windows by up to 60%, typically saving London homeowners £150–£400 per year depending on property size and current glazing. Secondary glazing and high-performance double glazing deliver the best return on investment for older properties.
Yes. Secondary glazing is the preferred solution for listed buildings as it sits inside existing windows and requires no planning permission in most cases. Our team has extensive experience working with conservation officers and listed building consent across all London boroughs.
Most residential installations are completed within one to two days. We always confirm a clear timeline at your survey so you know exactly what to expect — no surprises, no overruns.