Before I could stump grind they had to ensure where the services were.
Vac-U-dig can also be used for root pruning etc to expose roots so they can be clear cut and treated. Also for making trenches without cutting roots or services and pipes can be slid in. There really is no reason for the trenching and hacking of the past, but it does cost, approx $150/hour and callouts but a lot cheaper than broken services and hacked tree roots.
1.30min and 7.2mb WMV
www.palmtreeservices.com.au/video/vacudigga.wmv