Backflow Prevention
Save on your hot water
If you upgrade your hot water system, we’ll take $99 off the bill!
$99 off
Save 10% on Labour
Book online and save 10%.
Save 10%
Clear your drain
Clean your drains from $99*.
From $99

Backflow Prevention Adelaide – Protecting Your Water Supply
Keep Your Water Safe with Professional Backflow Testing
Clean, safe drinking water is something we tend to take for granted until something goes wrong. Backflow happens when tainted water reverses into the main water supply, possibly bringing chemicals, bacteria, and other dangerous substances into the water you and your family use daily.
At Alpen Plumbing & Gas, we are backflow prevention, backflow testing, and installation device specialists helping businesses and residents maintain clean water on their property. As a homeowner, business, or commercial property, we ensure your property complies with South Australian regulations so your water supply is safe and protected.
Who Needs a Backflow Prevention Device?
Backflow prevention is necessary for commercial properties and properties at risk of contamination. They are:
-
Cafes & Restaurants
Prevents chemicals and food waste from contaminating the supply.
-
Hotels & High-Rise Buildings
Large plumbing systems can generate backflow hazards.
-
Car Wash & Workshops
Chemicals, detergents, and filthy water can easily reverse back into the system.
-
Medical & Dental Clinics, Hospitals
Ensuring patient safety with clean, unadulterated water.
-
Industrial Facilities & Manufacturing
Heavy industry and processing plants often require strict backflow prevention.
-
Sporting Facilities & Swimming Pools
Pool chemicals and stagnant water must be separated from the potable supply.
Even residential properties may require backflow prevention, especially if they have:
- Irrigation systems
- Water storage tanks
- Rainwater harvesting systems
- Booster pumps
Our Backflow Prevention Services in Adelaide
Backflow Device Installation Adelaide
Annual Backflow Testing & Certification
The law requires annual testing to guarantee backflow devices are working properly. Our qualified plumbers perform thorough tests, complete council compliance paperwork, and provide certification for you.
Backflow Device Repairs & Maintenance
If your backflow preventer isn’t functioning properly, we can replace or fix it to ensure ongoing protection.
System Inspections & Risk Assessments
What Is Backflow and Why Is It a Risk?
-
A drop in mains pressure
This occurs when there’s a burst pipe, heavy water usage (like firefighting), or water main maintenance.
-
Back pressure
When pressure in your property's plumbing system is higher than the mains supply, forcing water in the wrong direction.

Why Choose Alpen Plumbing & Gas?
As your local licensed backflow specialists, we offer expert services to install and test backflow devices in Adelaide. Our highly qualified, experienced, and certified plumbing team is here to help you now and make your water safe and compliant. We also arrange all council and SA Water compliance, giving you absolute peace of mind. Our technicians use cutting-edge equipment, assuring long-lasting performance for all our installations. Have your backflow test or installation booked today. If you need a new backflow device, annual testing, or emergency service, Alpen Plumbing & Gas is here for you.
