NSW Plumbing Licence 456767C
Sewer Pump Services operates under a current NSW plumbing contractor licence — licensed plumbing and drainage work, on record.
⚡ Same-day repairs available · Sydney
Sewer & stormwater pump repairs
Specialist repair of sewer, stormwater and grease trap pumps across Sydney. Diagnostic-led — megger and amp testing, mechanical inspection, and an honest call on repair vs replacement. Single-visit on most jobs, per-visit pricing, no subscriptions.
DIAGNOSEDMegger & amp tested, not guessed
ONE VISITMost repairs done on the spot
ON CALLAfter-hours emergencies across Sydney
Megger & amp testing every diagnostic
Parts on the van for common failures
Per-visit pricing, no subscriptions
Pump specialists since 1985
Diagnostic-led repair, not guesswork
Most pumps don't fail from old age — they fail from one of a handful of faults, and we see the same ones over and over: a fouled float, something flushed that's jammed the pump, breakdown in the motor's insulation, worn bearings, a failed non-return valve, or a worn rotor and stator on the older Mono units. The job of a repair visit is to find which one, fix it cleanly, and tell you honestly whether the rest of the pump has the lifespan left to make the repair worth it.
We've specialised in sewer and stormwater pumps since 1985 — across Sydney homes, strata buildings and food businesses. It's all we do, and that's what makes the diagnosis the difference: a megger test on the motor windings and an amp-draw reading at the panel on every visit, so the call to repair or replace is made on the numbers, not a hunch.
Most repairs are done in a single visit — we carry the parts that fail most often on the van, and quote the work on the day before we start it. If your pump's failing right now and the pit is filling, that's an emergency — see our emergency callouts page, or call us direct.
Common faults, and how we fix them
Pumps tend to fail from a handful of things — and most of them we sort in a single visit. Here's what actually goes wrong, and what we do about it.
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Float fouling
Fat, wet wipes and rag coat the float and weigh it down so it can't rise as the pit fills — the pump never gets the signal to start, the pit overflows, and the alarm trips. We free or replace the float, clean the pit, and replace the switch if the cable insulation has gone.
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Foreign objects jamming the pump
Rags, cloths, underwear, baby wipes — anything flushed that shouldn't be — wrap around or lodge in the impeller and bring the pump to a stop. On a system set up right, the overload trips it off before the motor burns out. We lift the pump, clear the blockage, check the impeller and float, and recommission.
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Motor insulation breakdown
Worn shaft seals let moisture into the motor windings. Insulation resistance drops and the motor eventually shorts to ground or trips its overload. It shows up on a megger reading before it takes the pump down — which is why we test every visit.
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Bearing wear
Bearings wear from age, grit ingress, or short cycling that runs the pump dry. You'll hear it before you see it — bearing rumble, rising amp draw, then heat. Caught early it's a rebuild; left too long the bearings collapse and take the windings with them.
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Non-return valve failure
A jammed or worn valve lets pumped water fall straight back into the pit the moment the pump stops, so the pit backwashes after every cycle and the pump works far harder than it should. We isolate the line, replace the valve, and watch a full cycle to confirm the pit holds.
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Worn rotor & stator — Mono pumps
On the older above-pit Mono pumps — progressive-cavity units with a chrome rotor turning inside a rubber stator — the stator wears like a tyre and the pump slowly loses its push. We fit a new stator — and the rotor too if it's worn — then recommission. Still common on older Sydney systems.
We also rebuild control panels and switchgear under our Restricted Electrical (Motors) endorsement, and where a pump's genuinely past saving we replace it like-for-like on the existing pit and pipework — see repair or replace below.
What a real repair looks like
A residential sewer pump choked with hardened fat. The float couldn't rise, fat had risen to the surface of the pit, and the pump had stopped keeping up before the call came in. Three photos from one job.
Sewer pump repairs
Sewer pumps cop the worst of what goes down the drain. Fat coats the float, wet wipes or rag wrap the impeller, and grease hardens in the rising main until the pump is working harder every cycle to shift the same volume. Wet wipes are the biggest culprit — they don't break down like paper, so the ones that slip past the trap end up fouling the float or jamming the impeller.
Most sewer repair work is float replacement, clearing a jammed or fouled pump, a non-return valve swap, or control panel work. Grease trap pits mostly run vortex pumps — it's only when the pit picks up other amenities as well and has to macerate stringy material that we move to a cutter or grinder. If the pit is cracked or seeping ground water, that's pit work, not pump work — see our pump pit installation page.
When a repair stops being worth it — end of service life, multiple failure points, a repeat repair history, parts no longer supported here — we tell you, and our sewer pump installation page covers what replacement looks like.
Stormwater pump repairs
Stormwater pumps fail differently. The water's cleaner — no fat, no wipes — but it carries silt, leaf litter and grit. They don't really sit idle between storms either: ground water can seep into the pit through the walls, so the pump keeps cycling and then cops a first-storm surge on top. Leaf debris can mat over the grill around the pump and choke the intake.
Most of our stormwater repair work is reconfiguring systems other plumbers left behind — floats that were never set to swing freely, sat at the wrong levels, or left fouling on the pit wall and cabling, so the pump short-cycles or won't cut in when it should. Sydney's wetter run of recent years has basement carparks, sub-floor sumps and strata stormwater systems working harder than they were sized for, and a badly set-up float shows up fast under that load.
When a repair isn't worth it — end of service life, undersized for current loads, or an alarm system that can't be retrofitted compliantly — see our stormwater pump installation page.
Signs your pump needs a repair
Pumps rarely fail without warning. The warning just tends to be subtle until it isn't.
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Pump alarm fired
Even if it stopped, it fired for a reason — the float saw the pit fill faster than the pump could empty it. Don't reset it and walk away.
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Drainage backing up
Toilets, showers or floor drains running slow or gurgling. The pump can't keep up with the flow, isn't pumping, or the float is firing late.
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Noise from the pit
Bearing rumble points to internal wear. No noise at all while the pit is filling points to the pump not activating — float switch, motor or panel side.
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Tripping the breaker
A stuck impeller drawing overload current, moisture in the windings dropping insulation resistance, or a failed non-return valve creating back-pressure.
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Constant running or short cycling
Run-stop-run-stop is normal. Continuous running or rapid short cycles point to non-return valve failure, float trouble or pit volume loss.
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Smell or wet area
A sealed pit shouldn't smell, and the ground around it shouldn't be wet. The lid seal, vent, or pit integrity needs attention before it gets worse.
When the pit is the problem, not the pump
Sometimes the pump's working perfectly and the system still fails — because the pit itself is the problem. Cracked walls, failed sealing at the riser, ground water seeping through deteriorated concrete, lid damage, or subsidence around an aging structure. A cracked pit or a failed lid seal also lets sewer gas escape, so often the first sign is a smell around the pit before anything else shows up.
The catch is that a failing pit reads like a failing pump. It runs longer every cycle, the alarm fires in heavy rain, and the pump cops the blame — but the diagnostics come back clean. Healthy megger and amp readings mean the pump itself is sound; it's just being made to clear ground water and stormwater leaking in through the pit, on top of the load it was sized for. Run that way for years and the pump does wear out early — but the pit was the problem all along.
Pit replacement is structural work — excavation, a new pit set, the pump and pipework reconnected, recommissioning. It's a project, not a callout. Our pump pit installation page covers what's involved.
On-site diagnostic, honest assessment, most repairs done in a single visit.
📞 0415 210 267Repair or replace?
There's no universal answer — it's a case-by-case call we make on site after a proper diagnostic. Here's the framework we work to.
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Leans toward repair
- The pump is in mid-life and was installed properly to begin with
- The fault is a single replaceable component — float, valve, impeller, capacitor, contactor
- Megger and amp-draw readings on the motor are still healthy
- The pit, rising main and pedestal are all in good shape
- The brand is still supported with parts in Australia
- It's the first significant fault on this pump
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Leans toward replacement
- The pump is at or past typical service life for its duty cycle
- Multiple failure points at once — bearing rumble and dropping insulation resistance together
- A repeat repair history on the same unit
- The brand or model is no longer parts-supported
- The pump was undersized or oversized for its actual load from day one
- The cost of the repair approaches the cost of a like-for-like replacement
We don't make that call from a phone description — we come on site, run the diagnostics, and tell you honestly which is the cheaper, longer-lasting option. If it's a repair, we repair it. If it's a replacement, we explain why and quote it before we touch anything. Our sewer pump installation and stormwater pump installation pages cover what replacement looks like.
Our pump repair process
Four steps, from the phone call to the written report — no chasing, no surprises.
01
Call in
Tell us what the pump's doing — alarm, smell, flooding, won't start, cycling odd. We lock in a date and time that works for both of us.
02
On-site diagnosis
Pit access, megger and amp testing, mechanical inspection. We find what's actually failed before we quote the repair.
03
Repair work
Most repairs done in a single visit. Parts on the van for common failures, same-day pickup from suppliers for the rest.
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Report & follow-up
Written report sent through — test readings, what we did, what to watch for, and your next service date so it doesn't repeat.
The credentials behind the repair
Repair work touches licensed plumbing, restricted electrical and confined-space entry — here's what backs every job we sign off.
AS/NZS 3500 standards
Plumbing and drainage work is carried out to the AS/NZS 3500 standard family — the benchmark for compliant work across Sydney.
Restricted Electrical Licence — Motors
Issued by NSW Fair Trading under the disconnect/reconnect framework (UEERL0004). We connect the pump and alarm, set up the control panel and fit the overload protection ourselves; your electrician runs the supply.
Confined Space Entry certified
Statement of Attainment from Pinnacle Safety and Training (RTO 40496). Deep pits and confined spaces are part of the trade — most residential pits never need it, but when one does, we're set up for it.
Fully insured
Public liability and workers compensation cover in place across all work, with certificates of currency available on request.
Specialist focus since 1985
A plumbing trade since 1985, focused on sewer and stormwater pumps since 2010 — the work we do day in, day out, not a sideline. You deal with the same operators from first call through to commissioning.
Pump repair FAQs
Straight answers about pump repair work in Sydney.
How long does a pump repair take?
Most repairs are completed in a single on-site visit, but the time on site varies with pit access, what's actually failed, and whether a part has to come from the workshop. A float switch swap is shorter than a control-panel rebuild; a full pump replacement on a tight basement pit takes longer than one in a side yard. We'll give you a clearer estimate once we've seen it.
How much does a pump repair cost?
The cost depends on what's failed, the brand and model of the pump, parts availability in Australia, the access to the pit, and whether the control panel needs work too. Every visit is quoted on the day, before we start. We don't run flat-rate pricing because no two pump pits are the same.
Should I repair or replace my pump?
Both can be the right answer — it comes down to the pump's age, what's failed, and the state of the pit, motor and rising main around it. As a rule, a single-component fault on a mid-life pump with healthy megger and amp readings leans toward repair; multiple failure points on an older unit, or a repeat repair history, leans toward replacement. We don't decide until we've run diagnostics on site. If replacement is the better call, see our sewer pump installation and stormwater pump installation pages.
Do you carry parts on the van?
We carry the parts that fail most often — float switches, common non-return valves, and the most common replacement parts for the brands we service most. Full replacement units are usually a same-day or next-day pickup from our supply partners.
What pump brands do you repair?
We repair Davey, Liberty, DAB, Grundfos, Mono, Flygt, Bianco, Zenit, Ultraflow, Saber and most other major brands. We keep stock on the most common residential pumps so most repairs and replacements are done in a single visit. If we don't have your pump on hand, we'll tell you up front before you commit.
Do you do same-day repairs?
Where we can, yes — we run a same-day booking system for repair work. If your pump is failing right now and the pit is filling, that's an emergency: see our emergency callouts page or call 0415 210 267.
Why is my pump tripping the circuit breaker?
Common causes are a clogged or jammed impeller drawing overload current; a stuck non-return valve creating back-pressure; moisture in the motor windings dropping insulation resistance; or a cracked housing letting water into the wiring. It's a diagnostic question, not a phone-fix one. If it's tripping right now and the pit is filling, see our emergency callouts page.
Why is my pump alarm beeping?
The alarm is telling you the pit level is too high — which means either the pump isn't running (power, float, motor) or it's running but not moving water (impeller wear, blocked discharge, jammed non-return valve). Don't keep flushing. If it's happening right now, see our emergency callouts page.
Why is water seeping into the pit from the ground?
That's usually pit failure, not pump failure — cracked pit walls, failed sealing at the riser, or ground-water ingress through deteriorated concrete. The pump may be working perfectly, but it's now pumping rainwater and groundwater alongside the waste it was sized for. Run-hours blow out, the pit never empties cleanly, and the pump wears out years early. The fix is pit repair or replacement — see our pump pit installation page for what's involved.
How do I avoid this happening again?
Most repair callouts could have been avoided with a service the year before. Float fouling, fat buildup, early bearing wear, dropping insulation resistance — these all show up on a service visit before they fail the pump. See our pump servicing & maintenance page for what regular servicing actually catches.
Do you repair strata pumps?
Yes — we work with strata managers and building managers across the Sutherland Shire, Eastern Suburbs, Inner West and Lower North Shore. Pump pits, rising mains, alarm panels and electrical switchgear in strata buildings are common property and the responsibility of the owners corporation. We issue reports formatted for committee minutes and AGMs. Our strata pump services page covers how we work with buildings.
Pump repairs across Sydney
Based in the Sutherland Shire, repairing sewer, stormwater and grease trap pumps across greater Sydney.
Sutherland Shire
Cronulla · Caringbah · Sutherland · Miranda · Bundeena · Burraneer · Lilli Pilli · Yowie Bay · Sylvania Waters · Como · Woolooware · Kangaroo Point
Northern Beaches
Manly · Mosman · Dee Why · Brookvale · Freshwater · Curl Curl · North Curl Curl · Collaroy · Whale Beach · Palm Beach
Lower North Shore
Cammeray · Longueville · Hunters Hill · Lane Cove · Northbridge · Chatswood
Eastern Suburbs
Bondi · Randwick · Coogee · Maroubra · Vaucluse
Inner West
Newtown · Marrickville · Leichhardt · Ashfield
Greater Sydney
Not listed? Call us — we cover all of metropolitan Sydney for repairs and same-day callouts.
Pump trouble? Get the specialists in.
Tell us what it's doing — alarm, smell, flooding, won't start, cycling odd. Diagnostic-led repair, an honest call on repair vs replacement, single-visit on most jobs.