How much does replacing a drain cost in Sydney?
Prices verified October 2026 · How we price
Excavate and replace a drain in Sydney typically costs $10,000–$30,000 in business hours, and most quotes land around $17,000. Block Drains gives a fixed written quote after a $249 camera diagnostic, credited to the job.
Excavating and replacing the full drain is the most expensive option, mostly because of what has to be dug up and put back.
Prices by area
Business-hours ranges. Inner and harbourside suburbs quote higher because of access and labour costs.
| Northern Beaches | $10,500–$31,500 |
| North Shore | $10,600–$31,800 |
| Hills District | $10,000–$30,000 |
| Western Sydney | $9,500–$28,500 |
| Eastern Suburbs | $10,800–$32,400 |
| Sutherland Shire | $10,000–$30,000 |
| Inner West | $10,400–$31,200 |
| South West Sydney | $9,400–$28,200 |
| St George | $10,000–$30,000 |
What a fair quote should include
Dig and replace is booked as scheduled work, so after-hours rates don't normally apply. Ask for each of these to be listed separately.
- CCTV and locating
- Excavation, new pipe and backfill
- Reinstatement of driveways, paving or gardens itemised
- Council or Sydney Water approvals if needed
What pushes the price up
- Reinstatement: concrete and paving add thousands
- Depth and soil (sandstone is slow and costly)
- Trees and services in the way
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Related guides
Questions
- How much does replacing a drain cost in Sydney?
- Typically $10,000–$30,000 in business hours, with most quotes around $17,000 (October 2026). Block Drains gives a fixed written quote after a $249 camera diagnostic, credited to the job.
- How much more is it after hours?
- Most Sydney plumbers add 20–50% for nights and weekends and 50–100% on public holidays, plus a call-out of $0–$200.
- When is digging the right call?
- When the pipe has collapsed so badly a liner can't pass, or the line needs re-routing or a new fall.
- How long does it take?
- One to three days for most homes, plus time to reinstate surfaces.