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Business Details
26 Years
experience
Trusted Civil Engineering Solutions in Tadworth
Established in 2000, O'Sullivan Civil Engineering has built a reputation for excellence in groundwork and civil engineering. Our expertise spans basement construction, formwork, and reinforced concrete structures, supported by over 30 years of industry experience. We prioritise site safety, environmental management, and quality control through rigorous staff training and certification. Our team holds CSCS cards and undergoes continuous professional development to maintain high standards. We specialise in value engineering and adapting techniques for challenging environments, including high water tables.

Operating across London and the South East, we deliver tailored solutions for residential, commercial, and infrastructure projects. Our commitment to client satisfaction is reflected in our collaborative approach and attention to detail. We partner with leading organisations and support charitable causes, reinforcing our dedication to community and industry leadership. With a focus on innovation and reliability, we ensure projects meet exacting specifications and deadlines.
Services
Basement Construction Groundwork Formwork RC Structures Temporary Works
Details
  • Year established: 2000
Highlights and features
  • Over 30 years of experience in civil engineering and basement construction.
  • CITB-registered with continuous staff training and CSCS-certified teams.
  • Specialise in challenging environments, including high water table areas.
  • Value-engineered solutions tailored to project-specific requirements.
  • Proven track record in London and South East infrastructure projects.
Associations and certifications
  • Construction Industry Training Board (CITB)
Services
Basement Construction
Specialist basement construction services using advanced techniques like piling and dewatering systems. We address complex challenges such as high water tables and underground rivers. Our solutions ensure structural integrity and compliance with building regulations.
Groundwork
Comprehensive groundwork solutions including foundations, drainage, and tunnelling. We deliver precision in substructure contracts, ensuring stability and adherence to project specifications for residential and commercial developments.
Formwork
Design and construction of reinforced concrete structures with expertise in exposed finishes. Our formwork services cater to both above and below-ground applications, prioritising durability and aesthetic quality.
People
Frank OSullivan
Founder
With decades of experience in civil engineering, Frank established the company in 2000. He oversees operations and ensures adherence to quality standards across all projects.
Questions
What areas do you serve?
We operate throughout London and the South East England, delivering projects in urban and rural locations.
What services do you specialise in?
Our core services include basement construction, groundwork, formwork, and reinforced concrete structures for residential and commercial clients.
How experienced is your team?
Our staff undergo continuous CITB-registered training, hold CSCS certifications, and bring decades of collective experience in civil engineering.
Can you handle complex construction challenges?
Yes, we specialise in value engineering and adapting techniques for environments with high water tables or underground rivers.