What is a modular glass extension?

A modular glass extension is a pre‑engineered, factory‑finished structure delivered in modules and assembled on site. This allows installation to be watertight in just 2‑3 days, with minimal disruption and consistent premium quality.

How much does a modular glass extension cost?

Modular glass extensions typically range from £30,000 to £70,000+ depending on size, specification, and site complexity. Room Outside offers all‑inclusive pricing – design, building control, installation, and warranty.

What is New Generation Glass technology?

New Generation Glass is Room Outside's exclusive advanced glazing technology, originally developed in America and available in the UK only through us. It delivers superior thermal performance, keeping the space warm in winter and cool in summer – even in full sun.

Do modular glass extensions need planning permission?

Many modular glass extensions fall under Permitted Development Rights, but we always review your property’s status. Room Outside includes full planning guidance and building regulations compliance with every project.

How long does installation take?

Our modular glass extensions are typically watertight in 2‑3 days on site. The complete project, including internal finishing and decoration, usually takes 3‑4 weeks from delivery.

What is the difference between modular glass and a traditional extension?

Modular glass extensions are precision‑engineered in our factory, then assembled on your property. This ensures higher accuracy, better insulation, and significantly faster installation compared to traditional brick‑and‑block builds. They also feature invisible structural glazing for a frameless look.

Modular Glass Brochure – Complimentary Download

Complimentary Download

Modular Glass Brochure

Name: Room Outside Modular Glass Brochure
Brand: Room Outside
Availability: InStock

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