Business Details
15 Years
experience
Your Trusted Partner for Construction and Joinery Solutions in Oxford
Established in 2011, Greenoak has built a reputation for delivering high-quality, sustainable building solutions rooted in over two decades of industry experience. Our expertise spans extensions, renovations, listed building works, and bespoke joinery, supported by an in-house team and trusted subcontractors. We prioritise craftsmanship, environmental responsibility, and client collaboration, ensuring every project meets exacting standards from concept to completion.Our 3,600sq ft workshop enables tailored timber solutions, while our commitment to transparency and reliability has earned enduring client trust. With a focus on Oxfordshire and surrounding areas, we combine technical precision with creative vision to create enduring, functional spaces.
Services
Construction
Joinery
Extensions
Renovations
Listed Building Works
Timber Solutions
Loft Conversions
Garden Buildings
Details
- Year established: 2011
Highlights and features
- We offer 23 years of combined construction and joinery expertise.
- Our in-house workshop ensures custom timber solutions with precision.
- We prioritise sustainable practices and environmental responsibility.
- Our team provides end-to-end project management for seamless delivery.
- We maintain a proven track record in listed building and complex structural works.
What people say
Exemplary craftsmanship
Reliable and professional
Transformed our home
Attentive to aesthetic detail
First-class experience
Services
Construction
We deliver end-to-end construction projects, from initial design consultation to completion. Our expertise includes extensions, renovations, and complex structural works, with a focus on quality and sustainability. Utilising in-house trades and trusted subcontractors, we ensure seamless execution tailored to client specifications and local regulations.
Joinery
Our bespoke joinery service creates custom windows, doors, and cabinetry using sustainably sourced materials. Advanced machinery and a dedicated finishing room enable precision and durability. We specialise in matching existing features and crafting unique storage and kitchen solutions to enhance both aesthetics and functionality.
Extensions
We design and build single or double-storey extensions to expand living spaces while maintaining structural integrity. Our process includes planning advice, detailed costing, and phased construction to minimise disruption. Clients benefit from seamless integration with existing properties and adherence to building regulations.
Listed Building Works
Specialist restoration and renovation of listed buildings using traditional techniques and materials. We navigate planning constraints and conservation requirements to preserve historical integrity while modernising functionality. Our experience ensures compliance with strict heritage guidelines and client expectations.
Garden Buildings
We construct bespoke garden offices, studios, and timber-framed buildings tailored to client needs. Using durable, sustainable materials, our designs blend with outdoor spaces while providing functional, weather-resistant environments. Projects include insulation, electrical integration, and custom finishes for year-round use.
People
Mark Glendinning
Director
With 23 years in construction, Mark founded Greenoak in 2011 after establishing a landscaping business. His expertise spans structural works and joinery, with a focus on quality and sustainability. He leads projects from concept to completion, ensuring client vision and technical excellence align.
Questions
What areas do you serve?
We primarily operate in Oxford, Oxfordshire, and surrounding regions, delivering projects tailored to local architectural and environmental contexts.
Do you handle listed building projects?
Yes, we specialise in renovations and restorations of listed buildings, adhering to strict conservation standards while modernising functionality.
Can you assist with design and planning?
We offer full design consultation, collaborate with architects, and guide clients through planning and building regulations to ensure project viability.
Are your joinery products custom-made?
Yes, our workshop crafts bespoke windows, doors, kitchens, and storage solutions to match client specifications and existing architectural features.
How do you ensure project quality?
We employ in-house trades and trusted subcontractors, maintain rigorous quality checks, and prioritise sustainable materials for enduring, precise results.
Do you offer aftercare services?
We provide post-completion support, including maintenance advice and addressing any concerns to ensure long-term client satisfaction.
