Home Extension

Anthracite Grey Bifold Doors & Roof Lantern Installed in Modern Swansea Extension

This homeowner in Swansea wanted to transform the back of their property with a modern kitchen-diner extension. They were looking for maximum natural light, slim sightlines, and a seamless indoor–outdoor connection. We supplied and installed a stunning set of aluminium bifold doors, a large roof lantern, and matching energy-efficient windows.

Swansea, South Wales
Detached Home Installed May 2025 2 weeks

🔨 Project Overview

The customer was expanding the rear of their detached home to create a spacious open-plan kitchen and dining area. Natural light and contemporary aesthetics were key priorities.

Working with the builder’s plans, we designed a glazing package that provided:

  • Clean, slim aluminium profiles

  • Excellent thermal efficiency

  • Secure multi-point locking

  • Maximum opening space for summer use

  • A dramatic central feature above the dining table


Products Installed

1. Aluminium Bifold Doors

  • Configuration: 4-panel, opening right

  • Colour: RAL 7016 Anthracite Grey, inside & out

  • Glazing: Energy-efficient double glazing

  • Hardware: Brushed chrome

  • Features:

    • Ultra-slim frames

    • PAS24-rated security

    • Thermally broken aluminium

    • Low threshold for smooth transition into the garden

These doors created a full-width opening across the extension, transforming how the space connects to the outdoor patio.


2. Aluminium Roof Lantern

  • Size: 2m x 3m

  • Frame: Anthracite Grey

  • Glass: Self-cleaning, solar-control blue tint

  • U-value: 1.2 W/m²K

The roof lantern floods the room with natural light all year round and adds a premium architectural feel to the extension.


3. uPVC Casement Windows

  • Style: Modern flush casement

  • Colour: Anthracite Grey (external) / White (internal)

  • Glazing: A-rated, toughened in critical locations

  • Trickle vents included

These windows tie in perfectly with the bifold doors for a cohesive exterior look.


🏗️ Installation Details

  • Installation Duration: 3 days total

  • Date Completed: July 2024

  • Work Included:

    • Removal of old units

    • Supply and installation of all glazing

    • Full sealing, finishing and internal trims

    • Alignment and weather-testing

    • Clean-down and builder handover

 

Products Used

Flow Collection
Bi-Fold Doors

2 Panel 1300 x 2100

Quantity: 3

3 Sliding Doors

View product