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National Leak Detection

4.6 (90 reviews)

Carrum Downs, VIC · Small local business

About this business

National Leak Detection provides nationwide insurance-focused leak detection services, specialising in locating hidden water, gas and sewer leaks for residential, commercial and strata clients. They use advanced non-invasive technology, including thermal imaging, acoustic listening and CCTV, combined with qualified plumbers and customised reporting to minimise disruption and support insurance claims.

Works on
Residential and Commercial
Job types
Strata and insurance

Get in touch

Visit websiteCall 1800 346 353Email

Service areas

Servicing Carrum Downs and surrounding locations.

  • Carrum Downs

See what local homeowners are saying

  • FCFirst H3 Dec 2025

    Really impressed. The two gentlemen that came and assessed and found the leak at my home were fantastic. They were friendly, professional, informative and offered valuable advice. Most importantly the...

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    Really impressed. The two gentlemen that came and assessed and found the leak at my home were fantastic. They were friendly, professional, informative and offered valuable advice. Most importantly they found the source of the leak within 30min, something 3 other trade companies were not able to do.

  • CGCarol G11 Nov 2025

    Jesse came out and was nothing short of professional and perfect. I am actually glad my drain needed help. Jesse is a true credit to the company and I hope this recognised.

  • MTMichael T5 June 2023

    Liam demonstrated the very highest professional standards. Response time was exceptional. Liam's punctuality and preparedness immediately put my mind at ease. Not only was Liam's technical knowledge i...

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    Liam demonstrated the very highest professional standards. Response time was exceptional. Liam's punctuality and preparedness immediately put my mind at ease. Not only was Liam's technical knowledge impressive, but his problem-solving skills were also top-notch. He carefully assessed the situation, thoroughly explained the problem to me, and outlined the steps he would for a solution. His attention to detail and ability to communicate complex concepts in a clear and understandable manner were truly remarkable. Throughout the entire process, Liam's workmanship was outstanding. He demonstrated exceptional skill and precision in repairing the plumbing problem, ensuring that everything was functioning flawlessly before completing the job. I appreciated his dedication to delivering high-quality results. Moreover, his professionalism and respect our property was very evident. He took great care to protect our home, leaving no mess behind after completing the repairs. It's refreshing to have someone who values cleanliness and treats your property with the same level of care as their own. Overall, I am very impressed with Liam's professionalism, and commitment to customer satisfaction - truly commendable.

  • ELE L12 Mar 2021

    Paul from National leak detection was great. I had 7 tradesmen come out in the past to look at the roof and none of them found the issues Paul did. He found the issues very easily and explained how to...

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    Paul from National leak detection was great. I had 7 tradesmen come out in the past to look at the roof and none of them found the issues Paul did. He found the issues very easily and explained how to fix them. No nonsense, honest and trustworthy. I highly recommend! I will definitely be contacting them again when I need roof/plumbing works done as they have shown to be honest.

  • RFRobert F7 Dec 2023

    Fantastic experience and result with this company. Recently moved to a house in Yarragon only to receive astronomical water bill. Paul arrived bang on time and got straight into finding the leak which...

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    Fantastic experience and result with this company. Recently moved to a house in Yarragon only to receive astronomical water bill. Paul arrived bang on time and got straight into finding the leak which he did within 30 minutes. Top man! He was polite, courteous and very efficient. This was a very big cloud hanging over our heads, thinking it maybe under the slab but with Paul's help it was located outside which was a huge relief. He even recommended a plumber in the area. Thank you Paul and thank you National Leak Detection. Kind regards Robert Fogarasy

  • JDJade D12 Dec 2019

    Such a fantastic experience with National Leak Detection! We had a reoccurring leak in the ceiling which would come after heavy rain (for years it would keep coming back) and after 3 different service...

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    Such a fantastic experience with National Leak Detection! We had a reoccurring leak in the ceiling which would come after heavy rain (for years it would keep coming back) and after 3 different services being unable to find the source of the leak, National Leak Detection were able to find the issue and fix it on the spot. They definitely know what they’re doing, and the customer service was very refreshing. Beautifully mannered guys who cleaned up after themselves and were very respectful when in our home. Such an easy experience. Strongly recommend!

Frequently asked questions

How much do plumbers typically charge?
Plumbing costs vary significantly depending on the type of job and its complexity. Simple fixture repairs are generally much less than jobs involving pipe replacement, excavation or gas appliance work. Most quotes include a call-out fee, hourly labour and parts, with after-hours or emergency attendance usually attracting higher rates. This page shows live pricing for jobs in your area.
Do plumbers charge call-out fees?
Call-out fees are common and are often used to cover travel and the initial assessment. Plumbers typically add hourly labour and any materials or replacement parts to the call-out fee. After-hours, weekend or emergency attendances are usually charged at higher rates and some small jobs may have a minimum charge.
Do plumbers need a licence in Australia?
Yes. Plumbing work must be carried out by a licensed plumber in every Australian state and territory, and in NSW the regulator is NSW Fair Trading (Building Commission NSW). Plumbers will generally provide their licence number and should be able to supply compliance certificates for regulated work. Look for an ABN, public liability insurance and relevant industry memberships as additional trust signals.
How do I get a quote from National Leak Detection?
National Leak Detection lists phone, email, or through their website on this profile, so you can contact them directly for pricing and availability. Share a short scope and photos to get a faster quote.
What areas does National Leak Detection service?
National Leak Detection services Carrum Downs and surrounds. Contact them to confirm service areas.
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