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Are you looking for a highly experienced professional building company to tackle your upcoming project? Get guaranteed quality results with Onyx Build. Based in West Oxfordshire, we offer professional and reliable services for a wide variety of building needs. We work with dedication and skilled craftsmanship that has earned us a reputation for excellence. 

Leo the company director has over 22 years of experience in his trade and takes a comprehensive approach to project management, providing his clients with a wide range of services to cover their needs. Get in touch with the team today to learn more about what we can offer you and to arrange a meeting.  


Building: When you’re looking for top-quality work, Onyx Build is here to help. Our team of bricklayers can provide a wide range of building skills, all guaranteed to meet and exceed expectations. Leo has over 22 years of experience in bricklaying and the building trade, giving him a wealth of knowledge and skill. He has managed and worked on hundreds of projects of all types and is confident and extremely capable in his trade.  

Carpentry: Looking for a reliable Building Contractor Company with extensive experience for your next project? At Onyx Build, we stand by the excellence of our work and provide clients with personalised attention based on their specific needs. We fit kitchens, bathrooms, convert lofts and everything else in between. If you’re looking for high-quality workmanship, Onyx Build are your team. 

Electrical and plastering: When you’re looking for top-quality work, Onyx Build is here to help. We pride ourselves on working closely with several other trades such as electricians and plasterers all of whom we have brilliant working relationships with. This enables Onyx to get your whole project completed stress-free for its entirety. 

Onyx Build is ready to fulfil your specific project’s needs. Whether you’re looking for a new landscaped garden or need an experienced professional to fully manage a project — we’ve got the tools and experience to guarantee success.  get in touch for an estimate today. 

We undertake all aspects of building, including: 

  • New Builds 
  • Extensions and alterations 
  • Garden rooms 
  • Kitchen renovations 
  • Garage office conversions 
  • Landscaping 


Contact us 


Onyx Build – design built to last.