Crafted with Care, Built to Last
Heritage Sash is dedicated to the design, manufacture and installation of traditionally crafted timber sash windows and heritage joinery. Our work is rooted in proven craftsmanship, respect for period architecture and an understanding of how historic buildings should look, feel and perform.
Every project is approached with care and accuracy, combining traditional detailing with modern materials and finishes to ensure long-term durability, thermal performance and visual authenticity. Whether working on a listed property, within a conservation area or on a period home, we focus on solutions that sit comfortably within their surroundings while meeting today’s expectations.
Featured Work
Cathedral Rd
Cardiff
PV Joinery were commissioned to carry out a full like-for-like replacement of all windows and the front door at a period property on Cathedral Road in Cardiff. To preserve the building’s elegant Victorian character while improving overall performance, we crafted and installed heritage slimline sash box units, providing the traditional appearance of single glazing with the efficiency of modern technology.
The new front door was meticulously replicated to match the original design, ensuring every detail remained true to the property’s architectural heritage. The completed project delivers an authentic, beautifully finished upgrade that enhances both comfort and long-term value while staying faithful to the building’s historic charm.
New Look
Bovlington
The Bovlington project was a comprehensive exterior joinery programme carried out over a two-year period, involving the complete replacement of the property’s external timber elements. The scope of work included all sash windows, external doors and bay structures, each carefully designed and manufactured to suit the character and proportions of the house.
Particular attention was paid to joinery detailing, sightlines and finishes, ensuring that the new sash windows, doors and bays sat naturally within the architecture of the building. The result is a cohesive exterior where every element works together, delivering a long-lasting solution that respects the property’s character while meeting modern expectations.
Llangynidr Cottage
PV Joinery were commissioned to undertake a full window replacement at a beautiful period property in Llangynidr. To maintain the building’s traditional character while improving efficiency, we manufactured and installed heritage slimline sash box units, offering the appearance of single glazing with the performance of modern double glazing.
Each unit was carefully sealed using Hodgson Heritage Putty, ensuring an authentic finish in keeping with the property’s original detailing. The result combines timeless craftsmanship with discreet modern technology, preserving the home’s heritage charm while delivering enhanced comfort and performance for years to come.
Llantrisant
Replacement
The existing timber windows had begun to show signs of wear, and the owners wanted to improve efficiency without compromising on style. We replaced the original units with new slimline box sash windows, meticulously crafted to replicate the original proportions and detailing.
A standout feature of this project was the preservation and matching of the decorative stained glass panels, which were faithfully reproduced and integrated into the new sashes, maintaining the property's traditional charm.
Llandeilo Refresh
This elegant property in Llandeilo had begun to lose its visual impact, with weathered and aging sash windows detracting from its once-proud exterior. The homeowner approached us to help restore the property’s kerb appeal while remaining true to its period character.
We carried out a full replacement of the existing sash windows with bespoke timber sash units, designed to match the original style in every detail. From traditional mouldings to classic proportions, each window was crafted to enhance the property's historic charm while introducing the benefits of modern construction — improved insulation, smoother operation, and long-term durability.
