Darwin’s Most Trusted Commercial Plumber
When you’re running a business, you don’t have time for plumbing problems to raise their head. AHG’s highly skilled and experienced team have been serving Territorians for more than 40 years and can take care of all your plumbing work – routine or emergency – so you and your staff can get back to work.



If your plumbing problem has caused other damage to your property, our multi-trade team can look after you. We’ve got carpenters, cabinet makers, roofers, tilers, painters and many more trades ready to go with one call. Don’t let plumbing problems stop you from running your business; give AHG Building Contractors a call for quick response and peace of mind.
All our plumbers are licensed and skilled in all aspects of commercial plumbing and civil and hydraulics. We have all the specialist equipment we need to help us identify and fix whatever is going on, fast and we’ve got the know-how to manage every commercial space from small retail spaces to large office blocks and industrial sheds.
We specialise in:
We provide a range of general plumbing services including hot and cold water supply, sanitary installation, pumped drainage systems, commercial grease traps, stormwater drainage systems and general sewer works. All work is completed by licensed plumbers and completed to the ISO 9001 quality assurance standard.
Our building maintenance team is available to carry out renovations and repairs to all types of commercial and industrial properties. Services include roof repairs, flood damage restoration, kitchen and bathroom renovations, building extensions and more. We offer a complete service including design, project management and installation.
Burst water pipes can cause structural damage if not dealt with quickly, while burst sewer pipes are a major health risk. We provide an emergency service to repair burst pipes across the Darwin area. All our plumbers are trained to use the latest pipe repair techniques so we can get your system back up and running quickly.
Roofs in Darwin have to put up with a lot during the wet season. Strong wind and rain can damage tiles, shingles, gutters, soffits and fascias. We provide a complete repair service for all types of commercial roofs. Our building maintenance team can also replace roofs that have been condemned or are showing signs of structural decay.
We can supply and install a range of conventional and solar-powered water heaters. Conventional heaters include gas and electricity-powered options. We also supply solar thermal hot water systems that use energy from the sun to heat water. Our experts can help you choose the right system for your property.
There is nothing worse than a blocked drain or toilet. For a small blockage, you can sometimes repair this yourself, but a more serious blockage will require the services of a plumber. We use the latest drain inspection equipment to locate and remove the blockage without causing any further damage to the drain lining or pipe.
We provide specialist gas and water leak detection services across the Darwin area. All our plumbers are trained to use the latest hi-tech leak detection equipment to locate leaks quickly. We can locate hidden water leaks, hot water pressure leaks, gas leaks, leaking pipes and more.
Water flowing in the wrong direction up the drainage pipe is a major health risk, so the sooner it is fixed, the better. Backflow occurs when there is an imbalance of pressure in the system or if the backflow preventer is faulty. We specialise in backflow prevention in commercial buildings across the Darwin area.
Thermostatic mixing valves (TMVs) regulate the temperature of flowing hot water in the property. Without a TMV, hot water coming out of the tap will be scolding hot. We have qualified TMV installers, which allows us to install and repair faults with your TMV. We can also carry out TMV testing in line with current legislation.
A pre-purchase building inspection provides you with the information you need to make sound financial decisions. A professional pre-building inspection can help you identify structural issues, plan for renovations and budget for repairs. We carry out pre-purchase building inspections for all types of commercial and industrial properties.
We provide hydraulic installation and testing services for a wide range of civil applications. Previous projects include water supply systems, plumbing and drainage systems and wastewater treatment plants. We offer a complete design and installation, inspection and commissioning service for all types of hydraulic systems.


