EXPERT CIVIL ENGINEERING & GROUNDWORKS SERVICES
Based in Truro, we provide reliable groundworks services across Cornwall and the Southwest, managing projects from planning to structural phase with skilled staff, plant, and materials - delivered on time and on budget.

Groundworks & Earthworks
Comprehensive site preparation, excavation, and earthmoving services for all types of construction projects.
Drainage & SuDS
Expert drainage solutions and Sustainable Urban Drainage Systems (SuDS) designed to manage water effectively.
Groundworks & Earthworks
Groundworks & Earthworks
Comprehensive site preparation, excavation, and earthmoving services for all types of construction projects.



Road & Hardstandings
High-quality road construction, car parks, and hardstandings for industrial and commercial sites.
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Attenuation & Retaining
Structural solutions including attenuation structures and retaining walls for coastal and industrial sites.
Site Clearance
Safe, efficient clearance of existing structures, vegetation and waste to prepare your site for construction.
Drainage & SuDS
Expert drainage solutions and Sustainable Urban Drainage Systems (SuDS) designed to manage water effectively.
Drainage & SuDS

Concrete & Foundations
Specialist reinforced concrete and structural foundations for commercial and residential developments.
Concrete & Foundations


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Concrete & Foundations
High-quality road construction, car parks, and hardstandings for industrial and commercial sites.
Road & Hardstandings
Concrete & Foundations
Structural solutions including attenuation structures and retaining walls for coastal and industrial sites.
Attenuation & Retaining
Concrete & Foundations
Safe, efficient clearance of existing structures, vegetation and waste to prepare your site for construction.
Site Clearance
"The precision and reliability of RHOS in our drainage and SuDS works have been exceptional. They are truly the gold standard for specialist civil engineering in Cornwall."
Knights Piesold
Consulting Engineers
"A dependable partner for our commercial developments. Their local knowledge and self-delivery model ensure projects are delivered on time and within budget."
Pooley's
Commercial Client
"The quality of their work on the Roseland Parc expansion is outstanding. They have a grounded approach that is exactly what we needed for our multi-phase groundworks."
Natural England
Conservation Works
CONSISTENT QUALITY & PRECISION
30+ Years Expertise
Decades of structural engineering and civil construction knowledge applied to every phase of your project.
Technical Precision
We employ advanced techniques and modern plant machinery to deliver results with absolute dimensional accuracy.
Regulatory Mastery
Navigating UK building regulations and site-specific constraints to keep your development fully compliant and safe.
Get in Touch
30+ Years of Experience | £30+ Million in Projects Delivered
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