What core drilling is for
Core drilling produces clean, cylindrical openings through concrete, masonry or asphalt — the bore comes out as a single removable core, leaving a finish-quality circular hole.
The vast majority of MEP penetrations in UAE high-rises are core-drilled rather than cut: faster, cleaner, less disturbing to the surrounding structure. Liberty drills 1,500+ cores per month across Dubai and Abu Dhabi.
Common applications
- HVAC penetrations — supply, return, refrigerant and condensate drops through floors and walls
- Plumbing risers — DWV, water supply, fire risers
- Electrical & data trays — power conduit drops, low-voltage cabling, fibre runs
- Structural anchors — chemical anchor holes, cast-in dowel locations
- Concrete sampling — cube and core extraction for compressive testing
- Manhole & utility tap-ins — sleeves through buried infrastructure
Drilling specs
Parameter Range Notes
Bore diameter 25 – 600 mm Standard increments
Bore depth ≤ 1,500 mm Per single setup
Placement accuracy ± 2 mm Laser-aligned
Plumbness ≤ 0.5° Vertical bores
Drilling method Wet diamond Dust-free, water-cooled
Power 110V / 230V / 415V Battery options for live floors
How we drill
- Mark up. Engineer marks bore centres from MEP drawings, verifies clearance to walls, beams, columns.
- GPR scan. Each bore location scanned for rebar, PT cables, conduits — repositioned within tolerance if a clash is found.
- Anchor & align. Drill rig anchored to floor or wall, laser-aligned to mark.
- Drill. Diamond bit advanced under controlled water flow. Spent water vacuum-extracted into containment drums.
- Extract core. Cylindrical core lifted out, hole inspected, cleaned, capped if not for immediate use.
- Document. Each bore photographed and logged with location, depth, encountered conditions.
Pricing
Bore size Per-bore rate (AED) Notes
25 – 75 mm 80 – 180 Anchor holes
100 – 200 mm 180 – 450 Most plumbing & HVAC
250 – 400 mm 450 – 1,200 Major risers
450 – 600 mm 1,200 – 2,800 Lift shaft sleeves
Volume discounts apply at 50+ bores per visit. Heavy rebar adds 30–50%.