Premium protection for the Built Environment

Premium protection for the Built Environment

Certified sealing systems for civil, commercial and infrastructure projects. CSD delivers high-performance sealing solutions that safeguard buildings and infrastructure from fire, water, gas and smoke ingress. Trusted across data centres, transport hubs, utility networks and commercial developments, our systems ensure long-term safety, compliance and operational resilience in complex built environments.

Why CSD for Built Environment projects?

Engineered for both new-build and retrofit applications, our products provide proven multi-hazard protection while allowing easy re-entry for future upgrades or maintenance. From underground ducts to high-rise service risers, CSD systems help maintain the integrity of every structure, keeping people, assets and operations protected.
Our Case Studies

Multi-hazard protection

One system defends against fire, water, gas and smoke.

Certified performance

Independently tested to meet global safety standards.

Versatile design

Suitable for concrete, steel and composite structures.

Trusted by engineers and contractors

Installed across major UK infrastructure projects.

Long-term reliability

Maintenance-free, re-enterable, and proven to last 50+ years.

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The Complete Service Solution

We’re more than a product provider – we’re your complete technical partner:

  • Product solutions
  • Consultancy and design services
  • Installation services
  • Training programmes
Man and woman with PPE under pipework

Protect the Built Environment with confidence

Contact us today to discuss tailored solutions for your assets.

Electric relay station
“The service provided by CSD was excellent. The installation crew were skilled, hard-working and resourceful. The team at CSD also integrated with our own men, supporting them with the external duct sealing.”

CSD client

Offshore