General Plumber in Mount Cotton
What Mount Cotton owners can check first: pressure at two times of day, the main they sit on, and whether the block is on sewer or septic.

Pressure is modelled lower at morning peak than overnight: test both before replacing parts
Looking for a plumber in Mount Cotton? Jim Monger Plumbing and Gas is a family-run plumber and gasfitter with its base at Victoria Point, serving the Redlands, Logan and south-east Brisbane. We handle leaking taps and toilets, fixture installs, burst pipes, hot water and gas connections for homeowners, landlords and property managers. Council describes the suburb as semi-rural, with extensive bushland and conservation areas, and says some properties have water tanks, on-site wastewater systems or gas bottles. So the useful first question is what your home is connected to, because that decides who to ring and what is worth paying for. Call us for a free quote.
Two things change the advice here: when you test your taps, and whether your block is on mains or tank, sewer or septic. Council’s 2016 plan divides the area into four supply zones across very different ground levels, but it does not settle any one address, so the checks below start at your own property.
Council’s 2016 Water Supply Master Plan models Village zone pressure at about 24 m of head in the morning peak and about 72 m overnight, using projected 2036 demand. Those are modelled worst-case points, not readings at your address, yet they change the first step for a weak shower: note how it runs at both times before paying for parts. The overnight figure sits above Council’s own 55 m service standard, so a strong late-night flow proves little about the morning. A gauge reading at the property is the proper test, because the plan’s four supply zones span ground levels from 10 to 105 m, and a neighbour’s reading may come from a different zone.
In the Mt Cotton Road zone, the same plan models water ages above 20 days in cul-de-sacs and dead ends, against 3 to 6 days in the Village. At the end of one of those mains, raise a taste change with Council before assuming a house fault; Council says chlorine level changes are normal and the water is still safe to drink. The plan draws no link to filters or pipe wear, so water age alone is no reason to buy either.
Houses here also run big and busy: the 2021 Census recorded four or more bedrooms in 78.3% of dwellings, against 50.5% across Redland, and 90.0% of households were families. Count how many taps and people a fault takes down before agreeing to replace anything. With 66.3% of dwellings owned with a mortgage, against 39.9% across Redland, the bill usually lands on the household living there, so get a free quote before work starts and ask us to weigh repair against replacement.
Where your wastewater goes decides who to ring. Council’s 2016 sewer plan lists six pump stations in the catchment, including at Hardwood Drive, German Church Road and Paperback Street, moving flows from low-lying areas. A nearby pump station does not prove your home is sewered. On a sewered home, an overflow relief gully running with no water in use may be a network problem, so report it to Council on (07) 3829 8999 first. In the upper Native Dog Creek catchment, Council says many rural non-urban properties use septic or on-site systems, so that test may not apply and the first check is the system on your own land. We handle septic tanks and trenches as well as household plumbing.
Tank, septic, slope or meter: who to ring first
Tank supply stops in a power cut
Council warns that water tank systems may not operate during extended power outages. After a storm, a stopped supply on a tank may be a power problem rather than a failed part, so check the power before paying for a new part. Council lists 13 62 62 for reporting power outages. If the power is back and the tank plumbing still misbehaves, ring us about our rainwater tank services.
Extra water at the septic disposal area
Council tells septic owners to divert stormwater away from the disposal area and repair leaky toilets immediately, and storm runoff on sloping ground can reach that area. Council’s routine is a tank check every year, and it recommends sludge removal every two to three years for the older systems that need it. Our septic services cover tanks and trenches, so tell us where the water sits after rain when you call.
Changing drainage on a hillside
Council says local waterways start in the Mount Cotton hills from about 230 metres, and names overland flow and localised creek flooding in heavy rain as the primary flood risks. Council also rates the suburb moderate to high for landslide risk because of its hilly terrain, with high to very high areas between West Mount Cotton Road and Mount Cotton Road, which is a reason to get advice before changing drainage on a slope. Council says owners must drain to a lawful point of discharge and must not concentrate flows onto neighbours. Our stormwater drainage work includes seepage trenches and pump-out lines, and it should be judged on your block’s own levels rather than a rule of thumb.
Tank downpipes when fire threatens
Council rates much of the suburb as high to very high bushfire hazard. Queensland Government advises disconnecting rainwater tank downpipes as soon as a bushfire threat is apparent, reconnecting only after the roof and gutters are cleaned, and draining and cleaning a tank if ash was washed in. Work out how your downpipes come apart before fire season, and ring us for the tank plumbing side. Water quality questions go to a Queensland Health public health unit.
Bottled gas: who looks after what
Some properties here use gas bottles, so a fault can sit with the cylinder or with the appliance and pipework. Queensland Government says your LPG distributor maintains and tests connected cylinders, and only a licensed gasfitter can carry out gas work. If you smell gas, turn off the appliance, ventilate, avoid flames and switches, and call 000 if the smell persists after turning off the gas supply. We do gas fitting and gas appliance connections under gas licence L90908.
Meter dial spinning with the taps off
On a dial-type meter, Council says a small dial that keeps spinning with no water in use may indicate a leak on the property, though the test only helps if you are on mains. Council takes leaks outside the boundary, and sends those inside it to a licensed plumber, landlord or rental agency, or body corporate. Only 13.7% of dwellings here were rented at the 2021 Census, against 22.9% across Redland, so that call usually starts with the owner. We do leak detection and burst pipe repairs.
General plumbing services in Mount Cotton
General Repairs and Fixtures
Leaking taps, toilets and fixtures, plus installing vanities, toilets, dishwashers, fridges and water filters.
Hot Water Systems
Repairs, replacements and new installations across gas, electric and heat pump units. Homes here run large by Redlands standards, so tell us how many people use the home before we size a replacement.
Blocked Drains
Blocked drain clearing with a jet rodder and electric eel, with CCTV drain camera inspections. Council’s 2016 sewer plan describes a catchment draining towards southern and eastern low points, but that catchment is not the suburb boundary and does not by itself show your home is sewered, so tell us if your block has a septic system when you ring.
Burst Pipes and Leak Detection
Burst pipe repairs and leak detection.
Septic Systems
Septic system services including tanks and trenches.
Rainwater Tanks
Rainwater tank services.
Stormwater Drainage
Stormwater drainage solutions including seepage trenches and pump-out lines.
Gas Fitting
Gas fitting and gas appliance connections under gas licence L90908.
Pre-Purchase Inspections
Pre-purchase plumbing inspections. Some properties here have water tanks or on-site wastewater, so confirm which the home runs on before you buy.
Emergency Plumbing
Emergency calls taken 24/7 including weekends, for burst pipes, overflowing drains and gas problems.
TMV and Backflow
Thermostatic mixing valve and backflow prevention installation, testing and yearly maintenance.
Property Maintenance
Plumbing maintenance for homes, rental properties and commercial properties.

Why choose us: a plumbing licence you can check, plus Google reviews
Jim Monger Plumbing and Gas holds QBCC plumbing licence 15504687 and gas licence L90908. You can check the plumbing licence number on QBCC’s register or on 139 333. Our ABN is 72 684 573 242, and we are a member of the Master Plumbers Association of Queensland. The business had a Google rating of 4.9 from 100 reviews as of 28 October 2026. One Google reviewer wrote that a call to us saved them buying a new hot water system they did not need. Another wrote that they had used us twice for outdoor water leaks and that the problem was resolved as soon as possible. A third wrote that the team replied quickly and fitted them in on short notice so a stone benchtop install was not delayed. These reviews speak to the business as a whole rather than to any one suburb.
When you call, tell us when the flow seems weakest, whether the block is on sewer or septic, and how many taps are affected. It gives us more to go on for your free quote, and we take emergency calls 24/7.
Frequently asked questions
Can’t see your question? Call us and we’ll talk it through.
Call 0418 871 269Is all of Mount Cotton connected to town water?
Not necessarily. Council’s 2016 water plan says the Mt Cotton Trunk supply zone, which may reach past the suburb, is predominantly rural, 'so not all the areas are connected to the water supply’, and the network may have changed since. Council also says some properties in the suburb have water tanks, so tell us which supply you are on when you ring.
Where can I fill a water tank in Mount Cotton?
Council runs a water filling station at 11 Valley Way, one of five across Redlands Coast. Users bring their own hose, tank and fitting and pay by card, so a tank fixed at your home cannot be filled there directly. For a fixed tank, the practical step is to ask a water carrier about this station as a source. If your tank is dry, the first job is water rather than a new pump.
The water has stopped. Is it my plumbing or Council’s?
Council’s 2016 plan says Mount Cotton’s mains supply comes from the Heinemann Road Reservoirs, some directly and some through the Mt Cotton Reservoir, so on a mains home start with the network. Check Council’s service interruptions list for your suburb, and if nothing is listed, report it on 07 3829 8999 at any time. If Council’s side is clear, ring us.
I have a tank and mains water. Do I need a backflow device?
You may. Council lists an alternate water supply among the installations that may need a testable backflow device, and registered testable devices must be tested yearly. Council can confirm what applies to your property. Backflow prevention installation, testing and yearly maintenance are among our services.
Which jobs can I do myself on a tank or septic property?
Queensland Government lists some plumbing an unlicensed person may do, such as changing a shower head, replacing a tap washer, or maintaining an irrigation system that disposes of effluent from an on-site sewerage facility. QBCC says regulated work, including unblocking or repairing pipes, water heaters and maintaining on-site sewage systems, must be done by a licensed plumber or drainer.
Where are you based, and do you cover Mount Cotton?
Yes. We serve Mount Cotton from our base at 3 Jordan Dr, Victoria Point, along with the rest of the Redlands, Logan and south-east Brisbane. Quotes are free, and we take emergency calls 24/7.
Plumbers in nearby areas
Not listed? We probably still cover your area, so give us a call.
Related services
More ways we can help around your home or business.
Guides
What to check yourself first, and when it needs a plumber. All guides
Tested twice and still unsure? Call 0418 871 269.
Free quotes, and emergency callouts 24 hours a day.
