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Licensed excavation, Duffys Forest
Excavation & Earthworks Duffys Forest
Duffys Forest is a bush-and-acreage plateau on sandstone deep in national-park country, high-bushfire rock work on big blocks. The regular jobs here are basement digs, pool digs and retaining walls. 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 Duffys Forest
Excavation for every Duffys Forest job
From a knock-down rebuild to a new estate pad, each service has its own page with the detail.
Excavation in Duffys Forest
What's different about digging in Duffys Forest
Duffys Forest, in short
Duffys Forest sits about 26 kilometres north-east of the city. You'll recognise it by Ku-ring-gai Chase National Park, Duffys Forest reserves and Cottage Point Road. It's ringed by Terrey Hills, Ingleside and Cottage Point. What's changing: knock-down rebuilds, pools and basement garages cut into the rock, and retaining on the steep blocks.
The houses, and what they need
Most of Duffys Forest is mid-century and newer homes on steep sandstone blocks, with knock-down rebuilds throughout, over by Ku-ring-gai Chase National Park. Near Ku-ring-gai Chase National Park, knock-down rebuilds are the running theme. On a Duffys Forest block that usually means basement digs, pool digs and retaining walls.
The ground under Duffys Forest
Around Ku-ring-gai Chase National Park, Duffys Forest is on Hawkesbury sandstone with rock close to the surface on headland and ridge blocks. Sandstone sits close to the surface around Duffys Forest reserves, so a Duffys Forest cut is sawn at the boundaries and broken out for anything deep. Around Ingleside, the sandstone is sawn at the boundaries and carted out as rock.
The council, access, and getting to you
Duffys Forest is Northern Beaches Council ground; near Ku-ring-gai Chase National Park, bushfire and tree protection controls apply and we dig to the approved plans. The Duffys Forest crew comes in off Waratah Road or McCarrs Creek Road, where the block is rural with room to stage from.
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 Duffys Forest we dig
Duffys Forest and the streets around it, from the older estates to the new blocks.
Northern Beaches
Excavation across Duffys Forest
From the older streets to the newer blocks, Duffys Forest and the suburbs around it. If you're anywhere in the Duffys Forest area, we can get to you.
See the whole Northern Beaches →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 Duffys Forest, answered
How much does excavation cost in Duffys Forest?
It depends on the volume of material, the ground (hawkesbury sandstone with rock close to the surface on headland and ridge blocks), 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 Duffys Forest?
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 Duffys Forest?
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 Duffys Forest?
Yes. Hawkesbury sandstone with rock close to the surface on headland and ridge blocks. On the headlands, the plateau and the slopes, sandstone is at or near the surface, so pools, basements and garage cuts are rock jobs: sawn at the boundaries, broken in the middle, carted as rock. It’s in the quote from the site look.
Can you dig a pool into the rock on my Duffys Forest block?
Yes, and it’s the standard slope pool. The shell outline is sawn into the sandstone, the middle is broken out, and the rock is craned or barrowed out where there’s no side access. Slower than sand and priced for it.
My Duffys Forest block backs onto bush with a bushfire rating. What does that mean for the dig?
Asset protection zones set how far the bush is cleared back and the BAL rating changes the build. Clearing is done to the approved plan, and on the plateau the ground under the bush is usually sandstone, so the pad is rock work as well.
Do you do knock-down rebuild site cuts in Duffys Forest?
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.
Do you do duplex site cuts in Duffys Forest?
Yes. One house down, the block stripped, and two pads cut and compacted to the engineer’s spec, with the basement dug if the design has one.
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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