Ensure accurate openings for construction and infrastructure works

In construction projects where speed, accuracy and minimal disruption are essential, diamond core drilling is the only choice.

It’s a precise, non-percussive rotary drilling method that uses a diamond-tipped drill bit to create clean, accurate holes in tough materials like reinforced concrete, brick and stone.

Contractors throughout the UK and Ireland rely on Confast for professional diamond core drilling services. With over 35 years’ experience, we’ve completed drilling projects of all sizes from domestic installations to reservoirs, bridges and water treatment plants.

Contact our drilling experts today to arrange trusted diamond core drilling services for your construction project.

What projects need diamond core drilling?

There are dozens of applications of diamond core drilling in construction projects. But some of the most common include:

• Mechanical and electrical installations: Precision drilling creates accurate openings for pipes, conduits or cables to pass through walls and floors. This allows contractors to install services exactly where planned without damaging nearby structures
• Structural testing cores: Engineers often extract core samples from concrete or masonry to analyse material strength and integrity. Using diamond drill bits makes laboratory testing more reliable by preserving the material’s original properties
• Anchor-fixing holes: The long-term stability of heavy-duty anchors and bolts demands exact hole geometry. By matching the hole precisely to the anchor, diamond core drilling prevents loosening and extends the life of the fixing
• Ventilation and HVAC openings: Ductwork and ventilation systems need true-size circular openings with smooth edges. The clean penetrations of diamond core drilling help prevent air leakage and reduce the need for costly sealing
• Utility access drilling: Gas, water and drainage lines must often pass through reinforced materials like brick and concrete. Accurate diamond core drilling ensures pipes align correctly and maintain full flow capacity

Horizontal, vertical and angled drilling

Horizontal and vertical drilling allow services to pass through walls, floors and ceilings.

But a diamond drilling company can also create holes at various angles.

This solves access issues in confined and obstructed spaces in a way that other methods of drilling simply can’t.

The flexibility of core drilling services from professional drilling contractors lets you overcome site constraints without compromising safety or precision.

Wet vs dry drilling

Another huge benefit of diamond core drilling is that it can be carried out using two different methods to suit site conditions.

Wet drilling uses water to cool the bit and suppress dust. This improves cutting performance, extends tool life and keeps debris under control. So it’s ideal for larger penetrations and exterior work.

Dry drilling is recommended where water is impractical or prohibited, such as in interior fit-outs or sensitive environments. When paired with high-efficiency extractions, it maintains a clean and compliant workspace without sacrificing accuracy.

If you’re not sure which option is right for your project, contact the professional drilling contractors at Confast for expert advice.

Choosing the right size drill bit

As a leading diamond drilling company in the UK and Ireland, we offer core drilling services with bit diameters from 12 mm up to 1 metre.

This gives you plenty of choice depending on your project:

• Smaller diameters (12 mm-50 mm) are ideal for cable conduits, anchors and small fixings where a tight, precise hole is required
• Mid-range diameters (50 mm-250 mm) are commonly used for plumbing, HVAC and electrical pipework, offering clearance without overcutting
• Large diameters (250 mm-1 metre) are specified for major penetrations such as utility access points, industrial ventilation ducts or structural openings that need wide clearance

We can cut smaller holes with handheld equipment, even in tight spaces.

But larger cores demand heavier rigs and more powerful extraction.

Considering how drill size impacts access, equipment needs and site logistics is key to avoiding unexpected delays.

The benefits of diamond core drilling for contractors

• High precision: Diamond core drilling creates clean, smooth-edged holes that typically require no additional finishing before services are installed
• Non-percussive technique: Because it doesn’t rely on impact, core drilling minimises stress, cracking and vibration transfer into the structure
• Speed and efficiency: This approach is faster than conventional impact methods, helping your programme stay on schedule and reducing labour time
• Material versatility: Diamond drilling can penetrate reinforced concrete, masonry, blockwork and natural stone reliably across a wide range of site conditions
• Reduced disruption: There’s much less noise, dust and mess compared to hammer drilling, particularly when water is used to suppress debris at source
• Suitable for sensitive environments: Low vibration and excellent dust control make diamond core drilling appropriate for hospitals, schools, data centres and occupied buildings where downtime must be minimised

Why contractors nationwide choose Confast as their diamond drilling company

With more than 35 years in the industry, the drilling experts at Confast know how to plan and deliver drilling that fits seamlessly into your construction project.

We use advanced handheld and rig-mounted devices to cut anything from small precision holes to large-diameter cores in restricted access areas.

Safety is central to everything we do. And our operators are fully trained and compliant with UK health and safety standards.

That means you can expect us to handle your Risk Assessment and Method Statement (RAMS), dust suppression and site-specific requirements professionally from start to finish.

With a proven track record across commercial, residential and infrastructure projects, Confast is the trusted choice for contractors who need accurate drilling without compromise.

Enhance your project with reliable diamond core drilling services

Diamond core drilling is one of the most effective techniques for precision cutting. It combines speed, accuracy and adaptability to accelerate your project and prevent costly reworking.

And with Confast as your professional drilling contractors, you get the reassurance of approved experts, state-of-the-art equipment and decades of experience.

Contact us today to arrange clean, accurate diamond core drilling services.