Welcome to RJK Civil Builders UK
We honour our legacy while using our experience to build a better future for generations to come.
Our Legacy
At the heart of RJK Civil Builders UK lies a legacy of passion, integrity and dedication. Founder Renier Johan Keller was immersed in the world of construction from his earliest memories, guided by the unwavering principles of hard work and honesty passed down through his family.
From civil works and general contracting in the UK to consultation and project advisory across international markets, RJK Civil Builders UK was established to bring a better approach to construction — one that combines British standards of delivery with empathy, care and compassion for everyone involved.
Full-service development & contracting
As a full-service project development and general contracting firm, we offer a broad range of services and options. We operate in the public and private sectors, focusing on bringing extraordinary value to our clients through design-assist and partnering contracts in commercial, residential and civil markets.
Quality
Our projects are a testament to meticulous attention to detail and unwavering commitment to quality. We craft spaces people proudly call home and work, blending functionality with aesthetics.
Delivered on time & budget
We recognise the importance of deadlines and budgets. Our projects complete on schedule, and our seasoned team approaches every engagement with an owner's perspective.
Integrity & collaboration
Our work is driven by integrity, collaboration and innovation. We place a high value on transparency and open communication with clients and partners alike.
- Lump Sum
- Guaranteed Maximum Price (GMP)
- Construction Manager at Risk
- Cost-Plus Contracts
- Design & Build
- International Consultation
- Single source of accurate project data
- Early-stage design collaboration
- Live scheduling & budget tracking
- Automated workflows & reporting
- Digital handover & asset lifecycle
Technology that connects the whole team
RJK Civil Builders UK utilises a comprehensive platform to manage the design, pre-construction and construction of all our projects. This advanced technology combats the traditional divide between project stakeholders by bringing the entire team — from design consultants to specialist contractors — into collaboration early in the design phase.
The flexibility of our open-API platform provides a single source of accurate, up-to-date data that connects you directly to your team and ongoing projects. Our construction management software helps ensure your project stays on schedule and budget.
One founder, one promise
With a single point of accountability and a professional leadership culture, every project is carried by an owner's mindset — led by our Founder, Renier Johan Keller.
Renier Johan Keller
Renier Johan Keller is the Founder of RJK Civil Builders UK. With deep roots in construction and a global outlook, Renier leads the company's mission to build great projects — improving the communities we build in and leaving the world better than we found it.
As a UK-based construction professional with international consulting experience, he has worked in the presence of recognised industry leaders, witnessing first-hand some of the greatest transformations within the construction industry. His professional career spans field supervision, project management, estimating and business operations across civic, government, commercial, industrial, residential and civil works.
Renier shares strategies on how to leverage technology into bottom-line business, advising clients in their industries and having an impact on builders, architects, engineers, owners and developers. He has earned his scars through hard-won processes that are more than a checklist — every project teaches something, and those efficiencies are passed on.
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Building people, creating memories
We strive to provide high quality construction and superior customer service, creating unmatched value for our clients. We are more than builders — we are creators of thriving communities where people flourish.