Create practical service routes with controlled excavation and reinstatement planning.
Reliable services start with a clean, correctly sized trench, and Sutherland Shire Trenching is dug to your plans for water, gas, drainage and conduit. We control depth, width and grade so installers can work efficiently.
Send us your drawings, route and access details. Marking out in advance and checking for existing services helps us avoid conflicts, keep the trench safe and meet inspection requirements.
Across Sutherland, Jannali, Menai, Engadine and Cronulla, trench routes often cross lawns, driveways and rock. The right machine and a tidy backfill leave your property neat and ready for the next stage.
Explore the scope ↓We dig clean trenches to your specified dimensions for water, gas, drainage and conduit, keeping the trench base even and free of loose rock, giving installers a consistent workspace that meets installation and inspection requirements, saving everyone time and money.
Trench routes are marked in advance and checked for existing services, using Before You Dig plans and on-site locating where needed, helping us avoid conflicts, keeping the work safe and reducing delays on your project, saving you cost and stress.
After installation, trenches are backfilled and compacted properly in thin layers with suitable material to limit later sinking, leaving lawns, driveways and garden areas neat and ready for repair, resurfacing or planting, saving you the cost and trouble of repairs.
Poly water pipe to a new tap, shed or granny flat. Depth and bedding depend on the pipe type and the plumber. Keep it clear of power and gas runs, and lay warning tape above it to alert future diggers.
Stormwater needs a consistent fall to the discharge point, so the levels have to be right and not just approximately deep enough. The discharge point, whether kerb, easement or absorption pit, should be confirmed with the plumber or Council first.
Electrical and communications trenches follow the specifications of the installer and the network. See the dedicated cabling page for the details. The electrician or cabler should confirm depth, conduit and separation from other services in writing before the trench opens.
Gas lines are installed by a licensed gasfitter to their requirements, with separation from other services. Ask the gasfitter for the depth, bedding and route before digging starts, and expect hand digging near the meter and any live gas connection.
Shallow trenches with many branches. The key is mapping the layout first, so the machine does not cut across the same spots twice. Plan zones, valve boxes and controller wiring together, and photograph the runs before backfilling for future reference.
Slotted ag pipe in a gravel-filled trench collects groundwater behind retaining walls, along footings or under soggy lawns. It still needs a fall and a lawful outlet, and a filter sock or geotextile wrap stops fine soil from clogging it over time.
Most jobs use both. The machine does the open run and hands take over near existing services and retained tree roots.
Dial Before You Dig plans are indicative. Private pool plumbing, irrigation, private stormwater and old septic lines are not on them, so ask the owner and pothole where unsure. A private locator with detection equipment can trace many of these.
Dune and sandy soils near Cronulla fall in easily, even in shallow trenches. Keep the opening short and do not stand or stack spoil along the edge. Battering the sides or using trench shields protects workers and the new pipe.
After rain or on low ground, trenches can fill. Ask how it will be managed, and be careful when pipes or cables need dry bedding. Pumped water should be filtered so sediment does not reach the street or drainage pits.
Cutting major roots of a retained tree can damage or destabilise it. Re-route or hand-dig under roots, and check with an arborist. Council may also have rules covering significant trees, so confirm what applies before work starts near the trunk.
Loose, dumped backfill settles over months and leaves a visible dip in lawn or paving. Compaction in layers is what prevents it. A small plate compactor or rammer suits narrow trenches, with the topsoil kept aside for the final layer.
Much of the Shire has sandstone close to the surface, and a bucket alone may not get through it. Ask how rock will be handled, whether by breaker, rock saw or rerouting, and how it is priced if found partway along the run.
A clean, correctly sized trench makes every service installation easier, and our trenching experts deliver exactly that. We dig to your specified depth, width and grade for water, gas, drainage and conduit, marking routes in advance and checking for existing services. Safe working practices protect our team, your property and your neighbours. Clear communication keeps your plumber, electrician or installer informed and ready. With local knowledge of Sutherland Shire lawns, driveways, rock and tight access, we choose the right machine for each route, then backfill and compact neatly and thoroughly so your property is ready for reinstatement, resurfacing or planting.
Talk to our team ↗ Service plans, trench depth and access restrictions.
Ask us about your project ↗That is set by the pipe or cable specification, so it varies. Ask the plumber, electrician or installer for their requirements before the dig starts.
You can limit damage by cutting turf in strips, stockpiling topsoil separately and replacing it in order. Ask for this method if the lawn matters.
Work should stop so the service can be identified before it is damaged. That is why a Dial Before You Dig check and hand-digging near suspected lines are worth it.
It is useful for the start, to confirm routes and any private services. Photographs and a marked-up sketch can help if you cannot attend.
Share the address, the access and the result you need.
Details first. Then a plan that suits the site.