Casement Window Restoration – How Does It Work?

Restoring Elegance: Casement Window Restoration Unveiled

Casement windows are beautiful and practical. In design, they even pre-date sash windows, having first appeared in the UK in the 18th century. The problem with casement windows (especially in a period home) is often they can be old, and if not properly looked after, they may be draughty or the wood may have started to rot. Original casement windows will also not have the benefits of modern glass technology for thermal and noise insulation. If you have casement windows in need of some TLC, then Ventrolla can help! Ventrolla is an expert in sash and casement window restoration.

Unlocking the Beauty of Casement Windows

The Timeless Allure of Casement Windows

Casement windows, with their classic charm and versatile design, have graced homes for centuries. However, as time takes its toll, these windows may fall victim to wear and tear. Casement window restoration emerges as the key to preserving their elegance while enhancing functionality.

Understanding Casement Window Restoration

The Need for Restoration

Casement windows, characterized by their hinged sashes that open outward, are susceptible to a range of issues over time. These may include wood rot, operational difficulties, or deterioration of the original hardware. Restoration becomes imperative to breathe new life into these architectural gems.

The Art of Balancing Tradition and Modernity

Casement window restoration is a delicate dance between tradition and modern techniques. Skilled artisans aim to retain the historical authenticity of the windows while introducing subtle upgrades to improve their performance and energy efficiency.

What does a casement window restoration involve?

measuring casement window

Ventrolla survey

Survey and Measurements

First, one of the team will visit your property to see the windows and guide you through the process in more detail. At this point you would receive a quote for the work, and a technical surveyor would visit the property to take exact measurements for the work to be done.

The Casement Window Restoration Process

Step-by-Step Restoration

Preliminary Inspection

The restoration journey begins with a thorough inspection. Trained professionals assess the condition of the window frame, sashes, hinges, and other components. This initial step identifies the scope of work needed for a comprehensive restoration.

Wood Repair and Replacement

Wood is a central element of casement windows, and over time, it may succumb to rot or decay. Restoration often involves targeted wood repair, where damaged sections are meticulously replaced or reinforced to restore structural integrity.

window needing repairwindow renovationwindow renovation

Repairing and replacing the wooden frame

When wooden casement window frames begin to rot or become misshapen, our experts use traditional carpentry skills to replace sections with new wood to millimetre perfection.

green casement windows


Hardware Refurbishment

Original hardware, such as hinges and handles, contributes significantly to the aesthetic appeal of casement windows. Skilled artisans carefully refurbish or replicate these elements, ensuring they function seamlessly while retaining the charm of the period.

Glass Restoration

The restoration of casement windows includes addressing issues related to the glass. This may involve reglazing to replace damaged panes or upgrading to modern, energy-efficient glass while maintaining the window’s historic character.

New Glass

21st-century performance double-glazed panes will ensure an improved window energy rating for thermal and noise insulation.

Draughtproofing Integration

To enhance energy efficiency without compromising authenticity, draughtproofing solutions are often integrated during restoration. This involves discreetly sealing gaps and cracks to prevent unwanted drafts, making the windows more comfortable and sustainable.

Perimeter Sealing System

Using the innovative Ventrolla Perimeter Sealing System (VPSS) our craftsmen will eliminate all drafts and rattles.


The Artistry of Casement Window Restoration

Bringing Craftsmanship to Life

Meticulous Attention to Detail

Casement window restoration is an art that demands precision and attention to detail. Every aspect, from the choice of materials to the alignment of hinges, is executed with a commitment to reviving the window’s original splendour.

Customization for Period Authenticity

Restoration experts understand the importance of period authenticity. Customization is often employed to match the unique architectural features of the window to the era in which it was crafted, ensuring a seamless blend with the overall aesthetic of the home.

Benefits of Casement Window Restoration

Rediscovering the Advantages

Enhanced Energy Efficiency

Restored casement windows, with the incorporation of modern materials and draughtproofing techniques, contribute to improved energy efficiency. Homeowners experience reduced energy consumption and lower utility bills while enjoying a more comfortable living environment.

Preservation of Heritage

Casement window restoration goes beyond practical benefits; it is a commitment to preserving architectural heritage. By breathing new life into these windows, restoration enthusiasts contribute to the longevity of historical structures.

Preserving the Legacy of Casement Windows

A Revival of Timeless Elegance

Casement window restoration is a journey that transcends mere repairs; it’s a revival of timeless elegance. Through a meticulous process that honours tradition and embraces modernity, these restored windows become not just functional elements but cherished pieces of architectural heritage that continue to tell stories for generations to come.


white timber casement window


To see examples of Ventrolla’s work on casement window restoration, see this period Victorian property in Cambridge, or this impressive Georgian town-house.

If you’d like more information about casement window restoration, please contact our team.