Collis Bros Plumbing
The team other plumbers hand jobs back to — Collis Bros regularly takes on drainage and gas work that competitors turn away.
The named technicians aren't interchangeable: Blake is the one reviewers call for careful pipe leak detection, Jack for gas line work in older homes, Liam for precise scheduling, and Ben for project oversight on larger multi-day jobs. Response time is genuinely fast by any measure, with documented Christmas and New Year callouts answered the same morning. One review in the sample raises a concern about a pump replacement that failed within 16 months and aftercare that felt inadequate — worth asking the team directly about their warranty position on equipment they supply before committing to a larger installation job.
Their work
What it's like working with them
Based on a sample of Google reviews (134 total)
“you call Collis Bros and ask for Liam he is great”
“After others basically ran away from the job in the too hard basket”
“Good quote, no unexpected variations even though job was more complex”
What they help with
Based on what their customers hired them for
Credentials & background
Sourced from 5 public records so you don't have to look them up yourself
About Collis Bros Plumbing
Ben Collis leads a multi-technician plumbing operation that punches well above its sole-trader classification — reviews name at least ten individual plumbers (Ben, Blake, Liam, Ollie, Josh, Will, Noah, Jack, Sam, Tully, Reece) each praised for distinct strengths. Blake is repeatedly called out for careful excavation work and leak detection in buried pipes; Liam earns mentions for punctuality so precise that one customer noted he arrived 'not early, not late, on the dot'; Jack specialises in gas line diagnosis and copper pipe replacement; and Ollie is the go-to for systematic pressure diagnostics and whole-house inspections. Beyond standard plumbing, the team handles complex box gutters, stormwater drainage redirections, ag-line installations with concrete cutting, rainwater tank commissioning, and roof plumbing — jobs that multiple reviewers say other plumbers flat-out refused. They're particularly well-suited to older Sydney homes with compounding drainage or gas issues, and to commercial clients (a coffee shop mentions them as the fast-response fix for a blocked grease trap, and a commercial property manager cites years of roof plumbing mystery-solving). Same-day and next-day turnaround on urgent jobs — including Christmas Eve and New Year's Eve callouts — is a recurring pattern, and the crew consistently wear shoe covers, clean up after themselves, and send SMS arrival notifications.
Best for: complex drainage and stormwater jobs that other plumbers decline, gas leak detection and pipe replacement in older homes, same-day emergency plumbing callouts, and multi-tradesperson renovation plumbing coordinated across bathrooms and tank systems.
Location
Often needed together
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Claim This Profile — Free →Common questions about Collis Bros Plumbing
Does Collis Bros Plumbing handle emergency or after-hours callouts?+
Based on the reviews, yes — and meaningfully so. Multiple customers describe same-day responses to urgent problems, including a leaking toilet the day before New Year's Eve and a job attended over the Christmas break. One reviewer called in the morning and had a plumber on-site by noon. It's worth confirming current availability and any after-hours rates directly, but responsiveness to urgent work is one of the most consistent patterns across the review sample.
What kinds of drainage and stormwater work do they take on?+
This is arguably their strongest speciality. Reviews describe completed jobs including box gutter reconstruction with overflow pipes cored through a block wall, full stormwater drainage redirections to street frontage, ag-line installation with concrete cutting and replacement, and sub-floor drainage systems. Several customers specifically note that other plumbers refused these jobs before Collis Bros agreed to take them on. If you have a complex drainage problem or a backyard flooding issue, this team appears to have more experience with that category than a typical suburban plumber.
Which technician should I request for my type of job?+
Reviews name specific technicians for specific strengths: Blake is praised repeatedly for careful pipe leak detection and excavation work that avoids collateral damage; Jack is mentioned for gas line diagnosis and copper pipe replacement in older homes; Liam is noted for precise scheduling and thorough on-site work; Ollie comes up for whole-house pressure assessments and inspections; and Ben (the principal) oversees larger multi-day projects. Asking the office to match your job type to the right team member is a reasonable request given how the business appears to operate.
What do customers say about Collis Bros' pricing?+
Pricing feedback across the sample is broadly positive — reviewers use words like 'fair,' 'reasonable,' and 'no hidden costs,' and several mention receiving upfront quotes before work begins. One review notes that on a complex drainage job the final cost matched the original quote despite unforeseen ground conditions. One customer acknowledged they couldn't be certain they got the lowest possible price but felt the professionalism justified the cost. For larger or multi-stage jobs, getting the scope documented in the quote before work starts is always worth doing.
Do they work on older Sydney homes with legacy plumbing or roofing issues?+
Yes — and this seems to be where the team earns the most praise. Reviews specifically mention work on homes built in the 1960s with original galvanised pipe, properties with years-long unresolved roof leaks, and houses with compounding sub-floor drainage problems. A commercial property manager notes years of collaboration on 'mystery leaks' in old buildings. If you have an older Northern Beaches or Lower North Shore property with a problem that's stumped other tradespeople, this team's diagnostic approach and willingness to tackle unusual jobs makes them a reasonable first call.