York House, Marble Arch
The client’s requirement was to form new staircase openings from Level 5 to Level 3 through 380mm-thick reinforced concrete slab – all within an occupied building.
The works were carried out at night; however, no percussion vibration was permitted due to the close proximity of residential premises.
This meant that a different method had to be employed, which was to diamond drill and saw cut (using 110v and 3 phase electric equipment) the 5m x 4m area into manageable sections. These could then be lifted and removed in a controlled and quiet method, suiting the client’s requirements and with minimal noise produced.

By Daniel Le+Gresley
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November 28, 2025
When installing electrical containment and cable routes , precision and cleanliness are key. Each hole or penetration must align perfectly with trunking, conduits, or risers (often through reinforced concrete or blockwork) without creating dust, vibration, or rough edges that complicate the installation. That’s why diamond drilling has become the go-to solution for electrical contractors and containment specialists. Its ability to form accurate, dust-free openings allows for cleaner cable routes, faster installation, and a safer working environment. In this article, we’ll explain how diamond drilling supports electrical containment works, its advantages over traditional drilling methods, and how our team helps contractors achieve clean, professional results across London.

By Daniel Le+Gresley
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November 26, 2025
Whether it’s HVAC pipework, chilled water lines, or plant room connections, installing new mechanical systems often requires precise penetrations through reinforced concrete, block-work, or steel. Traditional drilling methods can cause vibration, cracking, or dust contamination, which is unacceptable in modern building environments. That’s why diamond drilling has become the industry standard for creating clean, accurate openings for mechanical service installations. This article explores how diamond drilling supports mechanical works, the advantages it offers over conventional drilling, and how PCDD helps contractors deliver safe, high-quality installations across London.

By Daniel Le+Gresley
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November 19, 2025
Modern M&E (Mechanical & Electrical) projects often take place in complex, occupied, or high-specification buildings where maintaining structure and live services is critical. Creating openings for containment, pipework, or ducting can easily disrupt existing systems if not done precisely. That’s where diamond drilling stands apart. Its controlled, low-impact technique allows contractors to carry out essential penetrations safely, protecting both the building structure and surrounding utilities. In this article, we’ll explore how diamond drilling minimises structural and service disruption during M&E works, why it’s preferred over traditional methods, and how PCDD helps contractors achieve seamless results across London.





