Specialist Leak Detection Perth

Accurate, Non-Invasive Leak Detection for Homes, Businesses & Strata

When it comes to finding hidden leaks, you need more than a general plumber. Expand Plumbing & Gas are Perth’s leak detection specialists, trusted by homeowners, businesses, and strata managers for accurate, non-invasive results.

Rating + “24/7 | WA-licensed | Family-owned

Why Choose a
Specialist Leak Detection Company?

Our Specialist Leak Detection Services

Water Leak Detection Perth – ceiling, walls, floors, underground
Gas Leak Detection Perth – safe, WA-licensed gas fitters
Bathroom & Shower Leak Detection – stop mould, grout & waterproofing issues
Roof & Pool Leak Detection – protect structures from hidden water damage
Commercial & Residential Leak Detection – tailored for homes, strata, and businesses

Our Specialist Process – Non-Invasive & Accurate

1. Initial
Assessment

check water meter, signs of leaks.

2. Advanced
Tools

thermal imaging, acoustic listening, electronic sensors.

3. Pinpoint
Detection

identify the exact leak location.

4. Transparent
Quote

upfront costs, no hidden fees

5. Repair or
Referral

we fix leaks or coordinate with trusted contractors.

Why Choose
Expand Plumbing & Gas?

WA-licensed & fully insured

Over 25 years’ leak detection experience

Family-owned, Perth-local

Transparent, competitive pricing

24/7 emergency response

Backed by 5-star Google Reviews

      EXCELLENT  
   Based on 181 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Wray Ave 
 
 
 
 Trustindex verifies that the original source of the review is Google. Thanks Scott for an excellent job installing my new gas stove-top and mixer tap. Really fast response and service. Much appreciated. Anton
  
 
      Posted on Google  
   
   Lina Platts 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great service with very friendly service men. Thanks
  
 
      Posted on Google  
   
   Indrawati Sunarja 
 
 
 
 Trustindex verifies that the original source of the review is Google. Had issue with having cold shower, was thinking of replacing the water tank (5 years old). Called Expand Plumbing (based on good reviews they have) and they sent Ben to our place within hours. He then simply clean the valve and we got hot water again with very reasonable fee (no call out fee). Ben was fantastic and explained to us the problems clearly. Highly recommended!!
  
 
      Posted on Google  
   
   Delta Slug 
 
 
 
 Trustindex verifies that the original source of the review is Google. Outstanding and prompt service. Staff are friendly and knowledgeable. Recommend unreservedly. Glenn BullCreek
  
 
      Posted on Google  
   
   HS 
 
 
 
 Trustindex verifies that the original source of the review is Google. Thankyou Alex for the quick response to send out the plumbers. Very efficient and nice people to deal with. Highly recommended
  
 
      Posted on Google  
   
   Nina Ahmad 
 
 
 
 Trustindex verifies that the original source of the review is Google. This is the second time using Expand plumbing.  Both times the work was done promptly and professionally. Ben was very courteous and explained the fault and how it was to be fixed. Thank you for a great job and I will recommend you to others.
  
 
      Posted on Google  
   
   A Triggered Boi 
 
 
 
 Trustindex verifies that the original source of the review is Google. My gas System needed certification, and James was all over it. He double checked everything and made sure it was up to spec Service was excellent, on time and quick. Would absolutely recommend Plumbdog and their services
  
 
      Posted on Google  
   
   nicole schnitzler 
 
 
 
 Trustindex verifies that the original source of the review is Google. Thank you Alec and Sarah! I know diddly squat about water pipes, so when our front water meter was going off like a frog in a sock, and it was almost 5pm - needless to say, I got a bit panicked. Sarah sent me the easy-to-navigate booking form, and instantly, Alec was on his way. Alec figured it was a water corp issue and he very accommodatingly called them for me and explained the issue. The nicest, fastest and professional service I have had in a long time. Expand to the rescue!
  
 
      Posted on Google  
   
   Shayne Smith 
 
 
 
 Trustindex verifies that the original source of the review is Google. I recently had a fantastic experience with Expand Group Plumbing! They sent out a couple of young guys who were not only well-mannered but also efficient and professional. They got the job done quickly and made sure to clean up thoroughly before leaving. I couldn't be happier with the service I received. Highly recommend Expand Group Plumbing for anyone in need of reliable and quality plumbing services!
  
 
      Posted on Google  
   
   Claud Lin 
 
 
 
 Trustindex verifies that the original source of the review is Google. Ben and Ryan helped fix a leak in my kitchen caused by cracks in the drain. We also discovered that the drain was blocked, and they assisted with clearing the blockage. Their service was very professional. Thank you very much!