
Construction Company
in London
Clarks Construction Ltd is a leading construction company in London. A third-generation, family-owned principal contractor based in St Albans, we deliver commercial, education, residential and heritage construction projects valued up to £10 million across London and the Home Counties.
Your Trusted Construction Partner in London
For over fifty years, Clarks Construction has delivered construction projects across London - from the transformation of the historic 1926 Reptile House at London Zoo in Regent's Park, to the sensitive refurbishment of a Grade II listed Georgian townhouse in Belgravia, mixed-use developments in Islington, and luxury residential refurbishments in Ealing. Our directly employed site management team and long-standing subcontractor network ensure consistent quality and programme delivery on every project.
We are a principal contractor - not a builder, not a subbie. That means we take full accountability for your project from pre-construction through to handover. Whether your project is a £1 million office fit-out or a £10 million mixed-use development, we bring the same commitment to quality, programme and budget.
We are CHAS Elite accredited, ISO 9001, ISO 14001 and ISO 45001 certified, and members of the Guild of Master Craftsmen. We work to CDM Regulations 2015 and maintain full safeguarding compliance on all education sector projects.

Why London Chooses Us
50 Years of Excellence
Three generations of the Clark family have built this company since 1976. We are one of the longest-established construction companies serving London.
Principal Contractor
We manage complex projects from £1m to £10m as principal contractor, with directly employed site teams and a trusted subcontractor network.
London Expertise
From Belgravia to Islington, we understand the logistics of construction in dense urban environments - party wall matters, neighbour relations, and tight site access.
Accredited & Certified
CHAS Elite, ISO 9001, ISO 14001, ISO 45001 and Guild of Master Craftsmen accredited. Fully compliant with CDM Regulations 2015.
Construction Services in London
We deliver construction projects across four core sectors, each backed by decades of specialist experience and a directly employed team.
Construction Services Across London
From our base in Redbourn, St Albans, we deliver construction projects across every corner of London.
Notable Projects in London

Furlong Road, Islington
5 Apartments & 3 Commercial Units

Mattock Lane, Ealing
Luxury Residential Refurbishment

Hobart Place, London
Grade II Listed Refurbishment

London Zoo - Reptile House
Heritage Restoration & Transformation

Surge Gyms, Richmond
Commercial Gym Fit-Out

Jennings Street, London
High-End Residential Refurbishment
Planning a Construction Project in London?
Whether you're a quantity surveyor assembling a tender list, a school bursar planning a new building, or a private client building your dream home - we respond the same day.
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