Best Drainage & Septic Specialists in Australia 2026
The top drainage & septic specialists across every Australian state, ranked by our composite reputation score.
Updated October 2026 · Based on 11,728 real Google reviews
Top Drainage & Septic Specialists Nationally
The short answer
As of October 2026, the 3 highest-ranked drainage & septic specialists in Australia on the Starworks directory are Sherlock Drains (5.0 stars from 244 Google reviews), Maxfield’s Wastewater (5.0 stars from 219 Google reviews) and Jet Blaster Man Plumbing & Blocked Drain Specialist (4.9 stars from 288 Google reviews).
Starworks ranks the 472 highest-rated drainage & septic specialists in Australia, holding 11,728 Google reviews between them. Across those 472 the median rating is 5.0 stars from a median of 7 reviews. Of those 472, 408 are rated 4.5 or better and 18 have passed 100 reviews. The most-reviewed carries 1,377 reviews, more than the top-ranked drainage specialist holds, which is why rating alone does not set the order.
Every figure here is computed from Google review data that Starworks collects for drainage & septic specialists in Australia, recalculated when this page rebuilds. Placement on this list cannot be bought.
Jet Blaster Man Plumbing & Blocked Drain Specialist
Read 288 reviews · Score: 91/100
Drain Fixers - Sewer Pipe Relining
Read 126 reviews · Score: 82/100
Scooper Plumbing Drainage Gasfitting
Read 85 reviews · Score: 81/100
Sunshine Coast Wastewater Specialists
Read 61 reviews · Score: 81/100
Johnny Drains - Blocked Drains 24/7 Sydney
Read 57 reviews · Score: 81/100
Salisbury Drains24 - Your Local Drainage Experts
Read 59 reviews · Score: 75/100
Master Blaster Drain Camera & Jetter Service
Read 48 reviews · Score: 73/100
All Kind Wastewater - Septic, Wastewater, Grease Trap and Pump Station Specialists
Read 43 reviews · Score: 73/100
Trendy Plumbing Solutions - Stormwater Drainage Newcastle
Read 39 reviews · Score: 73/100
Plendrive Liquid Waste Services Pty Ltd
Read 38 reviews · Score: 73/100
Childers Waste & Domestic Water Service Pty Ltd
Read 30 reviews · Score: 73/100
Showing the top 50 of the 472 highest-rated drainage & septic specialists.
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Frequently Asked Questions
Who are the best drainage & septic specialists in Australia?
As of October 2026, the 3 highest-ranked drainage & septic specialists in Australia on the Starworks directory are Sherlock Drains (5.0 stars from 244 Google reviews), Maxfield’s Wastewater (5.0 stars from 219 Google reviews) and Jet Blaster Man Plumbing & Blocked Drain Specialist (4.9 stars from 288 Google reviews). Every figure here is computed from Google review data that Starworks collects for drainage & septic specialists in Australia, recalculated when this page rebuilds. Placement on this list cannot be bought.
How many drainage & septic specialists does Starworks rank in Australia?
Starworks ranks the 472 highest-rated drainage & septic specialists in Australia, holding 11,728 Google reviews between them. Across those 472 the median rating is 5.0 stars from a median of 7 reviews. Of those 472, 408 are rated 4.5 or better and 18 have passed 100 reviews. The most-reviewed carries 1,377 reviews, more than the top-ranked drainage specialist holds, which is why rating alone does not set the order.
How does Starworks rank drainage & septic specialists nationally?
To rank drainage & septic specialists across Australia, Starworks combines each business's Google star rating, its review volume, and whether customers can reach it by website and phone. Volume is weighted because it shows how much evidence stands behind a rating, so a 4.9-star drainage specialist with 200 reviews ranks above a 5-star one with 5 reviews. Placement cannot be bought. For scale, the median rating across the 472 highest-rated drainage & septic specialists in Australia is 5.0 stars from a median of 7 reviews.
Where can I find the best drainage & septic specialists in my city?
Starworks publishes a separate ranking for drainage & septic specialists in every Australian city and suburb it holds enough data for, each built from that place's own Google review record rather than from this national list. Browse by city below.
Why does my drainage specialist business not appear in these national rankings?
Starworks ranks public Google Maps data, so a business needs a Google profile in the drainage specialist category carrying at least one review and a rating to be eligible. This national ranking of drainage & septic specialists in Australia lists the top 50 of the 472 highest-rated drainage & septic specialists; a business ranked outside them appears on its own city page wherever Starworks holds enough data for that city.
Drainage & Septic Specialists by city
Ranked in 36 locations. The number is how many rated businesses each list is built from.