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Licensed excavation, Thornleigh
Excavation & Earthworks Thornleigh
Thornleigh is leafy interwar-and-postwar housing on sandstone and bush gullies, rock-and-retaining pool territory. The regular jobs here are pool digs, retaining walls and knock-down rebuild site cuts. Services located first, sites left level and clean.
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✓ Licensed operators
✓ Dial Before You Dig
✓ Fully insured work
✓ Local Sydney crew
Rock
Digs handled
Mini to 35t
Machine range
4.9★
Average rating
Free
Site quotes
What we do in Thornleigh
Excavation for every Thornleigh job
From a knock-down rebuild to a new estate pad, each service has its own page with the detail.
Excavation in Thornleigh
What's different about digging in Thornleigh
Thornleigh, in short
Thornleigh sits about 25 kilometres north-west of the city. The markers are Thornleigh station, Thornleigh Marketplace, Lane Cove National Park and Comenarra Parkway. It's ringed by Pennant Hills, Normanhurst, Hornsby, Cherrybrook and Westleigh. What's changing: knock-down rebuilds, townhouses and pools on the leafy blocks.
The houses, and what they need
Most of Thornleigh is interwar and postwar homes on leafy sloping blocks, over by Thornleigh station. Near Thornleigh station, duplex and unit sites cluster near the centres. On a Thornleigh block that usually means pool digs, retaining walls and knock-down rebuild site cuts.
The ground under Thornleigh
Around Thornleigh station, Thornleigh is on Shale over Hawkesbury sandstone with rock outcrops and steep bushland gullies. On the Thornleigh blocks toward Thornleigh Marketplace the rock is shallow, so pools, piers and basements are sawn clean and broken rather than dug. Around Normanhurst, the clay is reactive, so fill goes in in compacted layers.
The council, access, and getting to you
Thornleigh is in Hornsby Shire Council; the Thornleigh station end carries bushfire and tree protection controls, so we dig to the approved plans. The crew reaches the Thornleigh job off the Comenarra Parkway or Phyllis Avenue, where the slope is worked in benches with retaining, past Pennant Hills.
How it runs
First call to clean handover
Every job follows the same sequence, whether it's a single trench or a full site cut.
A trench can be a day, a basement can be weeks. Dates come with the quote, not after.
Where we work
Where around Thornleigh we dig
Thornleigh and the streets around it, from the older estates to the new blocks.
Ryde & Hornsby
Excavation across Thornleigh
From the older streets to the newer blocks, Thornleigh and the suburbs around it. If you're anywhere in the Thornleigh area, we can get to you.
See the whole Ryde and Hornsby area →Recent work
Sites we've dug
Penrith Site cut
Castle Hill Pool dig
Ryde Basement
Liverpool Civil
“Very easy to deal with.
Excellent communication” Priya, Penrith
Excellent communication” Priya, Penrith
“Left the site spotless.” Dave, Castle Hill
“Would definitely recommend them!” Marcus, Ryde
“Great job thanks so much.” Lauren, Liverpool
“Very easy to deal with. Excellent communication” Priya, Penrith “Left the site spotless.” Dave, Castle Hill “Would definitely recommend them!” Marcus, Ryde “Great job thanks so much.” Lauren, Liverpool
“Very easy to deal with. Excellent communication” Priya, Penrith “Left the site spotless.” Dave, Castle Hill “Would definitely recommend them!” Marcus, Ryde “Great job thanks so much.” Lauren, Liverpool
Excavation in Thornleigh, answered
How much does excavation cost in Thornleigh?
It depends on the volume of material, the ground (shale over hawkesbury sandstone with rock outcrops and steep bushland gullies), access for the machine and how far spoil has to be carted. Every job gets a written quote after a site look, with the dig, cartage and cleanup spelled out, so you know what’s included before anything starts.
Do I need council approval before you dig in Thornleigh?
Usually, if the excavation is part of a build. Cut and fill beyond set limits, work near boundaries and anything on a lot with a flood, bushfire or heritage overlay needs approval as part of the DA or CDC. We work to the approved plans; check with your certifier before the dig is booked.
How long does an excavation job take in Thornleigh?
A trench, pool dig or single pad is a day or two; a knock-down site cut or a basement runs longer and depends on volume, ground and weather. Dates come with the quote, not after.
Is there rock in Thornleigh?
Yes. Shale over Hawkesbury sandstone with rock outcrops and steep bushland gullies. On the river slopes, in the gullies and across the Hornsby plateau, sandstone is usually within the first metre. It’s sawn at the boundaries and broken out, and it’s in the quote when the site look finds it.
My Thornleigh block is clay at the front and rock at the back. How do you price that?
That’s the most common ground in this region and it’s priced as two jobs: clay cut and compacted fill on the ridge side, saw and breaker where the block drops into rock. The site look finds where the change is so it’s in the quote from the start.
My Thornleigh block backs onto a bush gully. Does that change things?
Usually three ways: the back of the block is sandstone and steep, the bush carries a bushfire rating, and the trees are protected. The cut is benched, retaining is planned in, and the clearing and asset protection zone are done to the approved plan.
Why do slabs and driveways crack around Thornleigh?
Reactive clay. It swells in wet winters and shrinks in dry summers, and anything poured on loose or uncompacted fill moves with it. A pad cut and filled in compacted layers to the engineer’s spec is what stops the new slab doing the same thing.
Do you do knock-down rebuild site cuts in Thornleigh?
Yes. The old house down, slab and footings out, the block stripped and the new pad cut and compacted, as one run if you want the demolition handled too.
What happens next
Tell us the job. We'll size it up.
✓ Tell us the suburb, the access and what needs digging
✓ We'll come out and look before quoting anything
✓ You'll get a written quote with what's included spelled out
✓ The machine's matched to your access, not whatever's free
✓ Clear on spoil, cartage and cleanup before we start
✓ No obligation, no pressure
Free quote
Ready to get your dig underway?
Tell us about the job. We'll look at the site before quoting, so you know what's included before anything starts.
✓ Written quote after a proper site look
✓ Free quote after a proper site assessment
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