Radial Joinery manufactured and installed a replacement heritage timber sash window for a Grade II listed property in Carlton-le-Moorland, near Lincoln.
The window formed part of a wider programme involving five sash windows on the front elevation. Years of paint build-up and limited maintenance had trapped moisture within the original joinery, causing extensive timber decay.
Because of the building’s listed status and prominent front elevation, the replacement window needed to reproduce the proportions, mouldings, glazing bars and traditional appearance of the original.
Heritage Timber Sash Windows for a Listed Property
Original windows are an important part of a listed building’s character. Their frame sections, glazing arrangements and moulding details were made for the individual property and may not be reproduced accurately by standard replacement products.
Where repair is no longer practical, a purpose-made replacement can be manufactured using the surviving joinery and recorded measurements as a reference.
For this Carlton-le-Moorland project, the new sash window was designed to match the original as closely as practical while providing sound, serviceable joinery for the property.
This type of work forms part of our heritage and period property joinery service for listed buildings, period homes and character properties across Lincolnshire.
Why the Original Window Required Replacement
The existing window had been covered by many layers of paint over its working life. When coatings are repeatedly applied without dealing with failed joints or trapped moisture, deterioration can continue beneath the surface.
On this window, the decay had progressed beyond the point where localised repairs would provide a suitable result. A complete replacement was therefore required.
Repair should still be considered first when enough sound timber remains. Our separate timber joinery repair and restoration service covers splice repairs, resin repairs and replacement components for windows that can be retained.
Matching the Original Sash Window
The replacement window was set out using the original joinery and opening as a reference. Careful recording helped us reproduce the details that mattered to the appearance of the front elevation.
These details included:
- The overall frame proportions
- The size and arrangement of the sliding sashes
- The original glazing-bar layout
- Traditional moulding profiles
- The relationship between the window and surrounding opening
- The single-glazed appearance required for the front elevation
Reproducing these elements allowed the new window to sit naturally alongside the remaining joinery rather than appearing as an unrelated modern replacement.
Single Glazing and Heritage Requirements
The window shown was one of five on the front elevation that needed to remain single glazed. Other windows at the property could be considered differently, but the prominent front windows had to follow the heritage requirements applying to the building.
Glazing decisions for listed properties should always be made for the individual building and agreed before manufacture begins. Permission to alter or replace windows can depend on their age, significance, position and existing construction.
Where modern glazing is not suitable or permitted, careful joinery design remains essential to achieve the correct appearance and reliable operation.
Purpose-Made in Our Lincoln Workshop
The replacement sash window was manufactured in our Lincoln workshop. Producing it in-house allowed us to control the dimensions, jointing, glazing bars and moulding details throughout manufacture.
Traditional joinery knowledge was combined with accurate workshop machinery to reproduce the required components consistently. The completed window was checked before being taken to the property for installation.
Our wider bespoke timber window service includes traditional sliding sash windows, casement windows and specially shaped windows manufactured for individual properties.
Installation in Carlton-le-Moorland
The finished window was installed into the original opening at the Grade II listed property in Carlton-le-Moorland.
Careful fitting was important because older masonry and surrounding finishes are not always perfectly square. The new frame needed to fit the opening correctly while maintaining the position and proportions of the original window.
Once installed, the replacement restored the appearance and operation of the sash window while remaining consistent with the other joinery on the front elevation.
Repair or Replacement for Listed Sash Windows
Not every decayed sash window requires complete replacement. Localised deterioration around sills, joints or lower sash sections can often be repaired using new timber splice sections or an appropriate epoxy repair system.
Replacement becomes more appropriate when deterioration is extensive, important structural sections have failed or earlier repairs no longer provide a sound basis for further work.
The decision should consider:
- How much original timber remains sound
- The extent and position of the decay
- The importance of the existing joinery
- The listed-building or conservation requirements
- Whether accurate replacement details can be recorded
- The long-term performance of the proposed work
Where consent is required, the repair or replacement proposal should be agreed with the relevant authority before manufacture begins.
Heritage Window Work Across Lincolnshire
Radial Joinery is a bespoke joinery manufacturer based in Lincoln. We repair existing timber windows where practical and manufacture accurate replacements where deterioration makes repair unsuitable.
We undertake suitable heritage-window projects for listed buildings, period homes and character properties across Lincoln and the surrounding Lincolnshire villages.
Photographs of the complete window, close-up images of damaged areas, approximate measurements and the full property address will help us understand the project.
Related Heritage Window Projects
- Replacement timber sash windows near Market Rasen
- Sash-window repairs for a listed property in Lincoln
- Accoya windows and doors for a listed property in Martin
- Timber windows and doors for a Grade II listed property in Metheringham
You can also view more completed Radial Joinery projects.
Discuss Your Listed-Building Window Project
If you require heritage timber sash windows, repairs or purpose-made replacement joinery for a listed or period property, please send us photographs, approximate measurements and the full property address.
Call 01522 801760, message us on WhatsApp at 07368 659085, or use our project enquiry form.