When wall sawing wins
Wall sawing is the gold standard for any rectangular opening in a reinforced wall — doorways, windows, lift shafts, stair penetrations, services voids. The diamond blade rides a track bolted to the wall, producing a perfectly straight, square-edged cut at any angle.
Compared to hand sawing or hydraulic crushing, wall sawing offers:
- Vibration low enough for adjacent occupied space (< 5 mm/s ppv)
- Square corners — no chipping, no over-cut
- Depths up to 740mm in a single pass
- Repeatability — multiple identical openings, predictable schedule
How a wall saw works
The track is anchored to the substrate with M12 anchors. The saw head — typically 800–1200mm blade — runs along the track on a hydraulic carriage. Water cools the blade and flushes slurry; spent water is vacuum-recovered.
For deep cuts the saw makes multiple passes, advancing 50–100mm per pass. The final cut is verified with a laser line and the section is rigged out — typically broken into manageable lifts and craned or trolleyed away.
Technical specs
Parameter Range
Cut depth 100 – 740 mm
Blade diameter 800 / 1000 / 1200 mm
Wall material RC, plain concrete, masonry
Cut tolerance ± 0.5 mm
Vibration ppv < 5 mm/s
Pricing
Wall depth Rate (AED / lm)
≤ 200 mm 200 – 350
200 – 400 mm 350 – 650
400 – 600 mm 650 – 1,200
Standard doorway (2×1m, 200mm RC) 1,500 – 3,000