Business Details
27 Years
experience
Expert Groundworks & Concrete Frame Solutions
Established in 1999, J P Dunn Construction has built a reputation as a leader in groundworks and concrete frame contracting. Our approach combines meticulous planning, cost efficiency, and a commitment to collaboration, ensuring every project is completed to the highest standards of quality and safety. With decades of experience across London and the Southeast, we specialise in complex projects ranging from deep basements to landmark concrete frames. Our team works closely with clients from early bid stage through to project handover, delivering innovative solutions tailored to challenging urban environments.We maintain long-standing partnerships with leading main contractors and developers, underpinned by trust and a shared commitment to success. Our in-house design partner, Structemp, enables integrated temporary and permanent works solutions. Fostering a Zero Harm culture, we embed safety and precision in every aspect of our operations, supported by a clearly defined testing and inspection regime. Our social responsibility initiatives include employment, apprenticeships, and sustainable procurement practices that benefit the communities where we work.
Services
Groundworks
Concrete Frames
Preconstruction
External Works
Paving
Details
- Year established: 1999
Highlights and features
- We offer 25 years of experience in complex urban construction projects.
- Our in-house design partner provides integrated temporary and permanent works solutions.
- We maintain a Zero Harm safety culture embedded in all operations.
- Long-standing partnerships with leading main contractors ensure collaborative success.
- Our quality assurance regime guarantees defect-free results from day one.
What people say
Collaborative approach
Complex projects
On time delivery
Services
Groundworks
We deliver complex groundworks including deep basements, enabling works, and foundation packages across London. Our expertise covers propping, plunge columns, and CDP waterproofing design. Using our own plant and machinery, we maximise material reuse while ensuring structural integrity for constrained urban sites.
Concrete Frames
Our reinforced concrete frames form the backbone of residential towers and mixed-use developments. We integrate core construction techniques with post-tensioned solutions to optimise structural efficiency. In-house planning teams advise on sequencing and access strategies to reduce embodied carbon and improve buildability.
Preconstruction
Our preconstruction services optimise buildability and reduce risk through detailed methodology and value engineering. We provide cost guidance from early forecasting to Stage 4 sign-off, supported by in-house commercial and design teams to ensure transparent budget development.
External Works
We create durable external environments using premium paving materials and sustainable landscaping techniques. Our services include installing irrigation systems, architectural lighting, and bespoke water features tailored to each project's unique character and requirements.
Integrated Delivery
We seamlessly coordinate concrete frames with basement construction and external works to improve programme resilience. This reduces interfaces and enhances coordination across multiple project packages, ensuring efficient delivery of complex construction schemes.
Questions
What areas do you operate in?
We primarily work across London and the Southeast, delivering complex construction projects in urban environments.
What accreditations do you hold?
While not explicitly listed, our long-standing partnerships with major contractors demonstrate industry recognition of our standards.
How do you ensure project safety?
We maintain a Zero Harm culture through embedded safety processes and mandatory training for all site personnel.
Can you handle complex urban projects?
Yes, we specialise in challenging urban environments with deep basements and landmark concrete frames since 1999.
Do you offer integrated design solutions?
Yes, we collaborate with our in-house design partner Structemp for temporary and permanent works coordination.
How do you ensure quality control?
We implement a defined testing and inspection regime from day one to guarantee defect-free project delivery.
