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Business Details
We founded True Carpentry & Construction in 2012 in Falmouth, Cornwall. Our founder Oto Seiler brings over ten years of timber construction experience, including a four-year apprenticeship with Kumakura Construction in Kyoto. We specialise in Japanese and European timber architecture, combining ancient carpentry methods with modern design precision. Our expertise extends to green oak framing, bespoke joinery, and general building contract work. We work closely with local sawmills, architects, and trusted tradesmen to deliver high-quality finishes on any scale. We manage full builds or collaborate on larger projects, ensuring seamless integration with project teams. Our portfolio includes restoration projects, oak frame extensions, custom interiors, and garden structures.

We are honoured to have completed our first National Trust commission in 2015, reflecting our professional standards. We commit to beautiful, interesting structures through a passion for timber and its diverse applications. We prioritise close client relationships, offering advice and knowledge sharing throughout every project phase. Our problem-solving capability stems from deep understanding of both traditional and contemporary construction techniques. We maintain rigorous quality standards by blending Japanese aesthetic principles with robust British building practices.
Highlights and features
  • We combine Japanese apprenticeship mastery with British construction standards.
  • Our founder trained four years at Kyoto's renowned Kumakura Construction.
  • We delivered our first National Trust project in 2015.
  • We manage full builds or integrate seamlessly with existing teams.
  • Our timber frames fuse ancient carpentry with modern precision engineering.
Services
Timber Framing
Our timber framing service combines Japanese and English carpentry traditions to construct green oak and diverse timber frames to exacting standards. We specialise in hardwoods while also offering curved, round, or regularised frames using softwoods and glue-laminated materials. Clients receive precision-engineered structures that blend ancient joinery techniques with modern design accuracy.
Bespoke Wooden Designs
Our bespoke wooden designs service creates one-off garden structures, gazebos, and porches tailored to individual client visions. We collaborate closely from initial concept through to construction, ensuring each piece reflects unique aesthetic and functional requirements. The result is a handcrafted, site-specific feature that enhances outdoor living spaces with distinctive timber craftsmanship.
Modern Construction
Our modern construction service manages entire builds or specific project phases while maintaining direct client communication throughout. We leverage extensive experience from planning to completion, ensuring seamless coordination with architects and tradespeople. Clients benefit from a single point of accountability that delivers projects on schedule and to exacting quality standards.
Restoration & Renovation
Our restoration and renovation service revitalises historic and period properties using sympathetic timber techniques and traditional joinery. We combine Japanese precision with British conservation principles to repair or adapt existing structures without compromising character. Property owners gain renewed, structurally sound buildings that honour original craftsmanship while meeting modern performance expectations.
Oak Frame Extensions
Our oak frame extensions service designs and erects bespoke green oak additions that integrate seamlessly with existing architecture. We employ traditional mortise-and-tenon joinery alongside modern engineering to create light-filled, durable living spaces. Homeowners receive a tailor-made extension that enhances property value and aesthetic appeal through authentic timber craftsmanship.