19 Feb Best Plumbing Guide | Property Managers
If you manage commercial or residential properties in Brisbane, plumbing is one of those things that sits quietly in the background until it suddenly becomes your most urgent problem. I have been working with property managers across Brisbane for many years now, and the conversations I have most often fall into two categories: the proactive ones who want to understand what they should be doing, and the reactive ones calling me at 8pm on a Friday because something has gone wrong.
This guide is for both groups. Whether you are looking to get ahead of your maintenance obligations or you are trying to understand why the same problems keep recurring in your properties, what follows is a practical overview of what commercial plumbing management actually involves for Brisbane property managers, what your obligations are, and how to build a maintenance approach that protects your clients’ assets and keeps tenants happy.
Understanding Your Plumbing Maintenance Obligations
Property managers in Queensland operate within a framework of obligations that extends across the Residential Tenancies and Rooming Accommodation Act, the Body Corporate and Community Management Act for strata properties, and the broader requirements of the Queensland Building and Construction Commission. Understanding where your obligations begin and end matters, and so does understanding what falls on the property owner versus what the tenant is responsible for.
As a general rule, the landlord and their property manager are responsible for ensuring that plumbing and drainage systems are functional and in good repair at the start of a tenancy and throughout it. Tenants are responsible for reporting issues promptly and for not causing damage through misuse. In practice, the line can get blurry around things like blocked drains, and a consistent approach to documentation and communication helps enormously when disputes arise.
For commercial leases, the obligations are often more explicitly defined in the lease terms. Commercial tenants may have responsibilities for maintenance of certain systems, particularly in food service or industrial tenancies where their operational activities directly affect the plumbing. Understanding what is in the lease and how it translates to day-to-day maintenance management is worth spending time on.
Planned Preventative Maintenance: The Case for Being Proactive
I am going to be direct about this: the property managers who have the most stressful working lives are generally the ones managing their plumbing reactively. Every repair becomes an emergency. Every inspection throws up surprises. Tenants are frustrated because the same problems keep recurring. The property owner is unhappy about unexpected costs.
Planned preventative maintenance (PPM) changes this dynamic. It means scheduling regular inspections and maintenance tasks at appropriate intervals, catching small issues before they become expensive failures, and building a documented record of the property’s plumbing condition over time. For property managers, that documentation is also your protection when disputes arise with tenants or owners.
For a typical commercial property in Brisbane, a basic PPM program for plumbing would include annual inspection of all accessible plumbing, annual backflow prevention device testing (a legal requirement in Queensland), regular grease trap servicing for food service tenancies, hot water system servicing and temperature checks, and drain cleaning at intervals appropriate to the building’s usage.
The cost of a planned maintenance program is almost always less than the cost of emergency repairs and the associated damage. A grease trap that overflows into a tenancy is not just a plumbing problem. It is a health issue, a lease dispute, and a significant cleaning cost rolled into one.
Common Plumbing Problems in Commercial and Residential Properties
After 30 years in the industry, there are patterns I see repeatedly in Brisbane properties. Understanding these helps property managers know what to look for and what questions to ask.
Blocked drains are the most common call I receive from property managers. In residential properties, the typical culprits are tree roots in older sewer lines, build-up of grease and soap in internal drainage, and wipes or sanitary products that should not have been flushed. In commercial properties, particularly food service tenancies, grease is almost always the primary issue. Regular grease trap servicing and drain cleaning is not optional in a commercial kitchen environment. It is the difference between a functioning operation and a phone call from a panicked cafe owner.
Hot water system failures are the second most common issue. Commercial properties often have ageing hot water systems that have been maintained minimally or not at all. When they fail, they fail at the worst possible time. An annual inspection of hot water systems, including checking the anode rod, pressure relief valve, and thermostat, extends system life significantly and gives you advance warning of units approaching end of life.
Water leaks, both visible and concealed, are a significant source of property damage and disputed responsibility. Slow leaks in wall cavities or under slabs can cause substantial damage before they are detected. If a property has unexplained increases in water bills or damp patches appearing in walls or floors, early investigation is almost always less expensive than waiting to see what develops.
Backflow prevention device failures are less visible but legally significant. Queensland regulations require that backflow prevention devices on properties connected to the public water supply are tested annually by a licensed plumber. This is a compliance obligation, not just a maintenance recommendation, and property managers need to ensure it is documented and up to date for their properties.
Managing Plumbing in Strata and Multi-Tenancy Properties
Strata properties add a layer of complexity to plumbing management because the responsibility for different parts of the system is divided between the body corporate and individual lot owners. Understanding where common property plumbing ends and lot plumbing begins is important, and it varies depending on the specific body corporate rules and the building’s configuration.
Generally speaking, the main building drainage, common area plumbing, and shared hot water systems are body corporate responsibility, while the plumbing within individual lots is the lot owner’s responsibility. In practice, the division is not always clean, particularly when a drain blockage could be located anywhere along a shared line.
For property managers handling strata work, having a plumbing contractor who understands this dynamic and can work effectively within body corporate governance processes is genuinely helpful. We regularly work on strata properties across Brisbane and understand the documentation and communication requirements that come with that context.
Apartment buildings also have specific challenges around hot water systems. Central hot water systems serving multiple units need to be managed carefully to ensure adequate supply, appropriate temperatures, and compliance with the Legionella management requirements that apply to large warm water systems.
Emergency Commercial Plumbing: Having a Plan Before You Need One
No matter how good your preventative maintenance program is, emergencies happen. A water main bursts. A drain backs up during a tenant’s busiest trading period. A hot water system fails in a residential building on a cold night. How quickly and effectively you respond to these situations reflects directly on your reputation as a property manager.
Having an established relationship with a commercial plumber before an emergency occurs is one of the most practical things a property manager can do. When you already have a contractor who knows your properties, who has a documented history of the systems in each building, and who you can call at any hour knowing they will respond, the whole process is faster and less stressful.
We provide 24/7 emergency plumbing and gas services for our commercial clients across Brisbane and South East Queensland. For property managers who want to set up a relationship before they need it, I am happy to talk through what that looks like.
Gas Fitting in Managed Properties: What Property Managers Need to Know
Gas systems in managed properties require the same planned maintenance approach as plumbing, and in some respects the stakes are higher because gas faults carry safety risks. At Alexander Gas and Plumbing Co, we hold both plumbing and gas licences, which means we can manage both systems under one contractor relationship. This is genuinely useful for property managers because it reduces the number of contractors you need to coordinate and ensures consistent documentation across both systems.
For residential properties with gas appliances, the landlord has an obligation to ensure that gas appliances are safe and functional. Annual servicing of gas hot water systems, heaters, and cooking appliances is best practice. In Queensland, any gas work must be carried out by a licensed gas fitter. Our gas licence is L31 902.
For commercial properties with gas cooking equipment, the requirements are more intensive. Commercial kitchens require regular inspection and servicing of gas appliances, and any modifications to gas lines or appliance installations must be permitted and inspected. If your commercial tenants have changed appliances or extended their cooking setups without involving a licensed gas fitter, that is a compliance issue worth addressing.
What to Look for When Choosing a Plumbing Contractor for Your Portfolio
Property managers are relationship managers as much as they are administrators, and the quality of your contractor relationships directly affects your ability to do your job well. When it comes to choosing a plumbing contractor for your Brisbane property portfolio, a few things are worth looking at carefully.
Licensing and insurance are the non-negotiables. Any plumber working in Queensland must hold a current Queensland plumbing licence. For gas work, a gas licence is required separately. QBCC licensing provides an additional layer of protection. Always verify that your contractor’s licences are current rather than taking their word for it. Our licences are Queensland Plumbing Licence 28840, Gas Licence L31 902, QBCC 12 654 79, and Building Assets and Services Contractor 860 066.
Commercial experience matters. A plumber whose background is predominantly residential may not have the same familiarity with commercial drainage systems, large hot water installations, backflow prevention compliance, or the specific requirements of food service or healthcare tenancies. Ask about the types of properties they work on regularly.
Communication and documentation are often overlooked but critically important for property managers. You need a contractor who provides clear, timely reports on work completed, who can produce compliance certificates when required, and who communicates proactively when they identify issues during a maintenance visit. Good documentation protects you, protects the property owner, and makes your job easier.
Finally, emergency availability. A contractor who only works business hours is of limited use when a pipe bursts at 9pm on a Sunday. Confirm what the after-hours arrangements are before you need them.
Working with Alexander Gas and Plumbing Co
We work with property managers across Brisbane and South East Queensland managing everything from single commercial tenancies through to larger property portfolios with multiple buildings. Our approach is straightforward: we get to know the properties we manage, we document what we find, we communicate clearly, and we are available when you need us.
We carry government contracting qualifications which means our standards for compliance, safety, and documentation have been assessed at a high level. For property managers who need confidence in their contractors, that track record is relevant.
If you are a property manager in Brisbane looking to establish a maintenance relationship or you have a specific issue that needs attention, give us a call or reach out through alexandergasandplumbing.com.au.
Frequently Asked Questions for Property Managers
What plumbing maintenance is legally required for commercial properties in Queensland?
Queensland regulations require that backflow prevention devices are tested annually by a licensed plumber and that plumbing systems are maintained in a safe and functional condition. Beyond these specific requirements, the obligations depend on the type of property and tenancy. Food service properties have additional obligations around grease trap servicing. Healthcare facilities have water quality and temperature management requirements. Your lease terms may impose additional maintenance obligations on either the landlord or the tenant.
How often should grease traps be serviced in commercial properties?
The frequency depends on the volume and type of cooking occurring in the tenancy. A busy restaurant or commercial kitchen may need grease trap servicing every four to eight weeks. A lighter food service operation may manage with quarterly servicing. Brisbane City Council has specific requirements around grease trap maintenance for food service businesses, and property managers should ensure their food service tenants are complying with these. Failing to maintain a grease trap can result in council infringement notices and significant damage to the building’s drainage system.
Who is responsible for drain blockages in a commercial property?
This depends on where the blockage is located and how it was caused. Blockages in the internal drainage that serves an individual tenancy are generally the tenant’s responsibility if caused by their operations. Blockages in shared or common building drainage are generally the landlord’s responsibility. Tree root intrusion in the main sewer line is a building maintenance issue. In practice, determining responsibility often requires a CCTV camera inspection to identify the location and cause of the blockage, which we can provide.
What is a backflow prevention device and why does it need annual testing?
A backflow prevention device is a plumbing fitting that prevents contaminated water from flowing back into the public water supply. Queensland regulations require these devices to be tested annually by a licensed plumber, with a compliance certificate issued after each test. If your property is connected to the Brisbane City Council water supply and has a backflow prevention device, annual testing is a legal requirement, not optional maintenance.
Can one contractor manage both plumbing and gas for my property portfolio?
Yes, provided they hold both a plumbing licence and a gas licence. At Alexander Gas and Plumbing Co, we hold both, which means we can manage plumbing and gas systems for your properties under one contractor relationship. This simplifies your administration, ensures consistent documentation, and means a single point of contact for maintenance and emergencies.
What should I do if a tenant reports a gas leak?
A suspected gas leak should be treated as an emergency. Advise the tenant to evacuate the area, avoid using any electrical switches or open flames, and contact the gas supplier to have the gas isolated if safe to do so. Then call a licensed gas fitter. We provide 24/7 emergency gas services across Brisbane. Do not delay on suspected gas leaks. The risks are too significant.
With over 30 years in the plumbing industry he provides a level headed and experience approach to all client related work.He is genuine person with a keen interest in family, friends and helping others.
He holds Queensland Plumbing Licence 28840, Gas Licence L31 902, QBCC License 12 654 79, and Building Assets and Services Contractor licence 860 066.
Rich believes in educating clients about their plumbing systems and providing honest advice about when professional help is needed.
He founded Alexander Gas and Plumbing Co in 2013 to provide personal, trustworthy service to Brisbane families and businesses.
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