OUR VALUES
At Derwen Joinery, we take pride in our craftsmanship and dedication to quality. With over ten years of experience, we specialise in creating high-quality doors, windows, and staircases.
We combine traditional joinery techniques with modern approaches, fostering a culture of accuracy, teamwork, and ongoing improvement. This ensures every piece we produce is durable and carefully crafted. Whether it’s timber-framed windows, or hand-finished doors, our team shares a passion for making beautiful, functional works that endure.
Our Values
Reliability
We deliver on our commitments. Our clients trust us to get the job done, and we honor that trust with full accountability. From the initial design phase to the final handover, we adhere to timelines and consistently exceed expectations.
Craftsmanship
We take pride in every cut, joint, and finish. Our craftsmanship is rooted in a deep understanding of timber and a passion for excellence. Each door, window, and staircase we create reflects our attention to detail and dedication to quality.
Partnership
We partner closely with clients, architects, and contractors to ensure a seamless, coordinated process. Within our team, collaboration involves exchanging expertise, tackling challenges collectively, and supporting each other to achieve the best outcomes.
Dedication
We value the quality of our work, the happiness of our clients, and the wellbeing of our team.
The latest from our blog
Ty’n Llan; Where Tradition and Modern Design Meet
Over a two-year period, Derwen Joinery worked alongside main contractor T.G. Williams to transform Ty’n Llan in Llandwrog into a beautifully revitalised community pub. Our bespoke internal and external timber work blends modern craftsmanship with the building’s historic character, creating a warm and enduring space for the local community.
Bespoke Joinery for Gilfach Ddu, Llanberis
We were appointed by T.G. Williams Builders Ltd to deliver a specialist joinery package for the historic Gilfach Ddu site in Llanberis. Our work included robust Douglas Fir external door sets built with traditional mortice and tenon joinery, bespoke Welsh Larch louvred screens engineered for natural ventilation, and fire-rated internal door sets.
Each element was crafted in-house to blend heritage-led design with durable, high-performance materials, ensuring long-term reliability and a cohesive finish across the site.
High-Performance Timber Windows and Doors with PassivGlas™
We’re proud to offer PassivGlas™, a premium glazing system that delivers the perfect
balance of performance, sustainability, and design freedom for timber windows and doors.