ELEGANT Glass Room Lancashire, Accrington

Glass Box Extension on Timber Decking, North West UK

Location :

Accrington, Lancashire, North West England

Type:

Modern glass box with frameless sliding doors

Dimensions:

5m x 3.5m

Timeline :

Completed in 7 weeks from order to installation

1. Creating an Outdoor Space That Works All Year

Our client in Accrington had a well-maintained timber deck — perfect for sunny days, but often left unused due to the UK’s changeable weather. They wanted to make better use of this area, ideally by adding a stylish structure that wouldn’t block the view or natural light.

After some discussion, they chose a glass box — a modern, frameless structure offering shelter from the wind and rain, while maintaining an open, airy connection to the outdoors.

2. Tailored Sunroom Solution in Lancashire

We designed a bespoke structure using a clean, white aluminium frame (RAL 9003) paired with toughened safety glass throughout. The front was fitted with frameless sliding glass doors that can be fully opened in warmer weather.

A fully glazed glass roof allows sunlight to pour in, making the space feel light and open. Integrated dimmable LED lighting lets the client enjoy the space from early morning to late evening.

Project Highlights:

Finish: White (RAL 9003)
Materials: Quality aluminium and toughened safety glass
Features: Frameless sliding doors, integrated LED lighting
Roof system: Full-glass with solar control
Fixing: Posts anchored 0.5m below decking for stability
Details: Timber decking precisely cut and sealed around all structural bases

3. Clever Construction for Long-Term Strength

Building on top of an existing wooden deck meant everything had to be planned carefully. We cut openings into the decking and embedded each structural post deep into the ground below. This gave the glass room a rock-solid foundation without altering the deck’s original look.

The use of high-quality glazing panels and clean aluminium joints ensured the space looked sleek and modern, both up close and from across the garden.

4. A Sunroom That Complements the Way They Live

This glass box-style extension has given our client a brand-new way to enjoy their garden — rain or shine. It’s become their go-to space for breakfast, relaxing with a book, or enjoying dinner outdoors without worrying about the weather.

The floor-to-ceiling glass panels flood the space with natural light, creating a bright and calming atmosphere throughout the day.

5. Cost Guide

For a measuring 5m x 3.5m, complete with sliding glass doors and lighting, the total cost was approximately £15,700.

Keep in mind that prices can vary depending on size, roof options, materials and optional features like LED lighting or upgraded sliding systems. If you’re comparing glass box extensions or wondering whether you’ll require planning permission, we’re happy to advise.

6. Thinking About Your Own Sunroom?

If you’re in Lancashire or elsewhere in the UK, and considering a custom glass-covered patio, we can help bring your idea to life.

At G&A Gardens, we build modern glazed extensions with quality aluminium frames, sliding glass systems, and smart design details that suit your lifestyle.

Not sure where to buy a sunroom in the UK? We offer a free, no obligation consultation where we’ll walk you through ideas, layouts, and budgets — whether you’re ready to start or just exploring options.

Contact us today to discover how we can create a timeless outdoor space designed just for you — built with care, precision, and a passion for modern design.