Bespoke timber casement windows and French doors installed throughout this Horsham barn conversion, complementing its natural stone and wood cladding.


Angled head casement windows and a custom front door designed for energy efficiency, security, and a seamless architectural fit.
Featured Ranges in Our Horsham Installation
These flush casement windows provided a clean, traditional appearance. Crafted from FSC-certified timber, the windows delivered natural insulation, reducing heat loss and improving the property’s overall thermal performance.
The angled head casement windows were custom-built to accommodate the barn’s unique roofline, requiring precise craftsmanship to ensure a perfect fit.
The timber French doors with side lights were installed at the rear of the property. Their traditional frame design, combined with large glass panes, allowed natural light to flood into the living space while maintaining thermal efficiency.
The RAL 7023 Concrete Grey finish was chosen to match the casement windows and front door, creating a cohesive look throughout the home.
The bespoke timber front door was designed to complement the rustic character of the barn conversion while providing modern security and insulation.
Fitted with rumbled chrome ironmongery, including a secure multi-point locking system, the door maintained both aesthetic integrity and functionality.

Timber Doors & Windows in Horsham
This barn conversion on Nuthurst Road, Horsham underwent a full window and door replacement. We installed bespoke timber casement windows, angled head casement windows, French doors with side lights, and a custom front door, all designed to complement the property’s natural stone and wood cladding.
Finished in RAL 7023 Concrete Grey with rumbled chrome ironmongery, the new windows and doors preserved the home’s character while improving insulation and security. This project demonstrates how timber French doors, casement windows, and bespoke front doors can complete both period and contemporary properties.
Project Details & Challenges
The barn required bespoke timber windows and doors to complement its natural stone and wood cladding. The project involved a full window and door replacement, ensuring that every element matched the building’s architectural character while offering improved insulation, durability, and security.
One of the biggest challenges was crafting angled head casement windows to fit the unique roofline while ensuring they functioned efficiently. These custom timber windows required precise measurements and expert joinery to maintain a seamless fit without compromising the barn’s structure.
The Impact of Angled Head Casement Windows
Angled head casement windows are a bespoke solution designed to fit the unique rooflines and architectural features of barn conversions and other distinctive properties. Unlike standard rectangular windows, these custom-shaped timber windows allow for maximum natural light in spaces where traditional designs wouldn’t be suitable.
Beyond their practical benefits, these windows add a striking architectural detail. Whether for period restorations or contemporary designs, angled head casement windows offer a tailored, functional, and visually appealing solution for unique spaces.
Why Choose Our Horsham Services
With extensive experience in crafting timber casement windows, French doors, and front doors, our team ensures that each installation complements your home’s character. Every project is approached with attention to detail and a commitment to high standards. From angled head casement windows designed to fit unique rooflines to double-glazed French doors that maximise natural light, every element is crafted with care.
We pride ourselves on offering a clean and tidy service, minimising disruption and ensuring a smooth installation process. As a FENSA-certified company, we work to make sure that all work complies with building regulations, delivering high-quality, energy-efficient solutions that stand the test of time.
For homeowners in Horsham and West Sussex, choosing Sash Windows London means working with a team of skilled professionals dedicated to quality craftsmanship.
Speak to Our Experts About Your Renovation

If you’re looking for expert window and door installation services in Horsham and West Sussex, Sash Windows London provides bespoke timber casement windows, French doors, and front doors tailored to your home’s style.
Get in touch today for expert advice and a free, no-obligation quote to discuss your project.