CDL Specialist Contractors deliver a comprehensive portfolio of specialist maintenance, inspection, testing, and installation services to clients across the United Kingdom. Operating nationwide, our engineering teams are fully trained, accredited, and experienced in the design, installation, and lifecycle management of lightning protection and earthing systems in accordance with current British Standards.

Our core expertise includes the installation and certification of structural lightning protection systems compliant with BS EN 62305, ensuring that buildings, infrastructure, and critical assets are safeguarded against the damaging effects of direct and indirect lightning strikes. We provide detailed condition assessments, continuity testing, and periodic inspections to maintain system integrity, identify deterioration, and ensure ongoing regulatory compliance.

In addition to installation and maintenance, CDL Specialist Contractors offer:

• Advanced system testing, including earth resistance measurements, bonding verification, and surge protection device assessment

• Remedial and upgrade works to bring legacy systems up to modern standards

• Specialist earthing solutions for commercial, industrial, and high‑risk environments

• Comprehensive reporting, including risk assessments, compliance documentation, and asset condition records

Our engineers operate with a strong focus on safety, precision, and technical excellence. Using industry‑approved equipment and best‑practice methodologies, we ensure every system we install or maintain performs reliably under real‑world conditions.

CDL Specialist Contractors are committed to delivering high‑quality, compliant, and cost‑effective solutions that protect people, property, and operational continuity. Whether supporting new construction projects, refurbishment programmes, or ongoing maintenance frameworks, we provide a dependable, specialist service tailored to the needs of each client.