Professional Groundworks Services Across Hertfordshire
Groundworks are the foundation of every successful construction project — they determine stability, drainage, durability and the long-term performance of the entire structure. Caltom Construction deliver high-quality groundworks for domestic, commercial and industrial projects across Hertfordshire, ensuring every site is properly prepared, levelled and structurally ready for the next phase of construction.
Whether you're planning a new build, an extension, a driveway, a commercial slab or a full site development, our team provide safe, compliant and precise groundworks that set the stage for reliable and long-lasting construction.
Reliable Groundworks for Safe, Stable & Long-Lasting Construction
Every strong building starts with the right groundwork. Poor preparation can lead to structural movement, drainage failures, cracking, subsidence and costly long-term repairs — which is why groundworks must be carried out by skilled professionals who understand soil conditions, load requirements and engineering specifications.
Caltom Construction deliver comprehensive groundworks solutions that cover everything from excavation, grading and levelling to sub-base installation, drainage preparation, trenching, footings and site formation. We take a technical, methodical approach to every project, ensuring the ground is stable, properly compacted and fully prepared for whatever structure comes next.
Our team work across both small-scale domestic projects and large commercial developments, supporting homeowners, builders, developers and civil engineers with accurate, safe and compliant groundworks. From the first dig to the final reinstatement, we ensure your project begins on a reliable foundation that supports long-term structural performance.
Our Core Groundworks Services
We specialise in delivering precise, fully compliant groundworks that prepare your site for construction safely and efficiently. Our services are focused on building strong, stable foundations, managing water flow, supporting structural loads and ensuring your project meets engineering requirements.
We carry out excavation for foundations, drainage, trenches, utility installations and full-site preparation. Our team remove soil, debris and unsuitable ground, shaping and levelling the site exactly as required. With proper machinery, controlled digging and safe working practices, we leave every site ready for accurate construction and prevent issues such as uneven settling or poor compaction.
A stable sub-base is essential for slabs, driveways, footpaths and hardstanding. We supply and install high-quality MOT Type 1 and other engineered aggregates, compacted in layers to ensure maximum stability and load-bearing performance. Whether it’s for a domestic driveway or a commercial yard, we create strong and durable sub-bases that prevent sinking, cracking and water retention.
Proper drainage protects your property and prevents long-term structural damage. We install surface water systems, soakaways, pipe runs, manholes, gullies and service trenches for utilities. Our team ensure all drainage gradients are correct, flows are unobstructed and the system integrates seamlessly with your property or development. Effective underground preparation reduces the risk of flooding, blockages and future remedial work.
Why Customers Choose Caltom Construction for Groundworks
Groundworks require precision, planning and compliance — qualities that define every project we handle. Customers trust us because we deliver reliable results, honest communication and careful workmanship that ensures their structure begins on the best possible foundation. From small residential jobs to large commercial sites, we approach every project with professionalism and technical expertise.
Accurate, Safe & Compliant Ground Preparation
We follow engineering drawings, safety protocols and best practices to ensure all excavations, trenches, sub-bases and formations are correctly installed and ready for construction. Accuracy now prevents costly issues later.
Experienced Team With Commercial & Domestic Expertise
Our groundworkers have hands-on experience across a wide range of projects — from simple excavations to major site formations. We understand soil conditions, drainage requirements and structural preparation at every scale.
High-Standard Workmanship That Lasts
We complete groundworks with long-term performance in mind. Proper compaction, level finishing, water management and structural preparation ensure your build remains stable and durable for years to come.
Clear Pricing, No Hidden Costs
We provide transparent quotes, detailed breakdowns and accurate timelines. You always know exactly what you're paying for — without unexpected extras or unnecessary add-ons.
Your Local Groundworks Specialists in Hertfordshire
Groundworks Built for Structural Strength & Stability
We ensure the ground beneath every structure is stable, properly compacted and built to withstand long-term stress. Our preparation techniques prevent movement, cracking and subsidence — giving your project a foundation that truly lasts.
Safe, Controlled & Fully Compliant Excavation
Every excavation is carried out safely and to regulatory standards, with correct depths, angles and protective measures in place. This ensures the site remains safe for workers and produces a reliable foundation for upcoming construction.
A Dependable Partner for Builders & Developers
We work seamlessly with construction teams, architects and engineers, offering reliable scheduling, consistent communication and accurate groundwork that prevents delays and keeps projects running smoothly.
Prepared for Any Project Size or Complexity
Whether you're upgrading a driveway, installing footings for an extension or preparing a full commercial site, we adapt our approach to meet your project’s needs. No job is too big or too technical — we deliver the same standard of precision every time.
Need Groundworks for a Major Build or Full Site Development?
Large-scale developments require reliable groundwork that supports heavy structures, manages water effectively and sets the stage for efficient construction. Caltom Construction provide full-service groundworks for new builds, commercial sites, civil projects and complex structural installations.
From initial excavation to final levelling and reinstatement, we handle every stage with precision and care. Whether you need deep foundations, drainage networks, slab preparation or complete site formation, our team deliver consistent, high-quality groundworks you can depend on.
We support projects across Hertfordshire and surrounding areas, and can often assist those slightly outside our main coverage zone depending on project requirements and availability.
Testimonials
What our clients say
Caltom construction are a well run and efficient company. I have used them for the last 10 years and they have always done good work. Colin and his lads are always helpful and professional and know what they are doing. I will continue to use them.
Have used Caltom on several projects over the last few years. Colin and his team have always been professional, productive and knowledgeable. Great work ethic and Colins vast knowledge of construction bring different ideas and angles on how to deliver the project.
I've used Caltom Construction for 5 years now, they have built basements, large reinforced slabs and reinforced footings.
They have been 100% professional, helpful and kept within budget, i wouldn't hesitate to recommend them.
Robert Drew
Need Professional Groundworks You Can Depend On?
Based in Hertfordshire, Caltom Construction provide reliable, safe and technically accurate groundworks for homeowners, builders, developers and commercial clients. Whether you're preparing a site, installing drainage, laying foundations or developing a full property, our team is ready to help.