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Leak Detection Services in Sydney

Fast, Accurate & Non-Invasive Leak Detection

Hidden water leaks can cause major damage long before they’re visible. Whether you’ve noticed rising water bills, damp walls, or musty odours, finding the exact source of a leak requires professional expertise.

At On The Flow Services, we provide precise, non-invasive leak detection services in Sydney, helping local homeowners and businesses locate and repair hidden leaks before they cause costly structural or water damage. Our licensed Sydney plumbers use the latest leak detection technology to pinpoint leaks quickly — without tearing through walls or floors.


Why Choose On The Flow Services for Leak Detection in Sydney?

We understand that leaks can be stressful — especially when their source isn’t obvious. That’s why we combine advanced diagnostic tools with years of plumbing experience to find leaks fast and fix them right the first time.

Here’s why Sydney locals trust us:

  • Accurate, Non-Invasive Leak Detection: We locate leaks using advanced camera and acoustic technology.
  • Licensed & Insured Plumbers: Experienced professionals with proven results since 2021.
  • Comprehensive Inspections: We check pipes, fittings, and drains for visible and hidden leaks.
  • Upfront Pricing: No guesswork or hidden costs — just clear, honest quotes.
  • Fast Response Times: We service Sydney and nearby Sydney suburbs promptly.
  • Residential & Commercial Service: Leak detection for homes, strata, and commercial properties.

From minor leaks to major water loss, we provide accurate diagnostics and efficient repair solutions.


Common Types of Leaks We Detect

Our expert plumbers can find and fix leaks in almost any part of your property, including:

  • Leaking taps, toilets, and showers
  • Burst or damaged underground pipes
  • Hidden leaks behind walls or under floors
  • Roof and gutter leaks
  • Hot water system leaks
  • Pool, spa, or irrigation leaks
  • Sewer or stormwater leaks

We use advanced equipment such as thermal imaging, acoustic sensors, and CCTV drain cameras to identify the exact problem — without unnecessary damage.


Our Leak Detection Process

  1. Initial Assessment: We inspect the affected area and review signs of moisture or water loss.
  2. Advanced Testing: We use non-invasive tools to trace the leak source accurately.
  3. Confirmation & Diagnosis: We pinpoint the exact location and determine the cause.
  4. Repair Recommendations: We explain your options — whether simple repairs or pipe replacement.
  5. Leak Repair (Optional): Our plumbers can repair the leak immediately to prevent further damage.

We’re committed to providing long-lasting, cost-effective solutions — not temporary fixes.


24/7 Emergency Leak Detection in Sydney

Water leaks can escalate quickly, causing flooding or structural damage if left untreated. That’s why On The Flow Services offers 24/7 emergency leak detection in Sydney, ensuring your plumbing problems are handled immediately, day or night.

Emergency Line: 0403 419 992

Servicing: All Sydney regions & suburbs, All surrounding regions & suburbs

Trusted Since: 2021


Book Your Leak Detection Service Today

Don’t ignore the signs of a hidden leak — it could cost you thousands in repairs if left unresolved. Trust On The Flow Services for professional, accurate, and affordable leak detection services in Sydney.


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Your Trusted Partner for Quality Services

Our customers trust us because we prioritize their needs and deliver results that exceed expectations. Here’s why we’ve earned their confidence:

Proven Track Record

Commitment to Quality

Transparent Communication

Safety First

Your Trusted Partner for Quality Services

Our customers trust us because we prioritize their needs and deliver results that exceed expectations. Here’s why we’ve earned their confidence:

Proven Track Record

Commitment to Quality

Transparent Communication

Safety First

Testimonials

Hear What Our Satisfied Customers Have to Say

5 Star Rating

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"I highly recommend On the flow for any plumbing work! Michael was professional, reliable, and incredibly thorough. He arrived on time, quickly diagnosed the problem, and explained everything in a way that was easy to understand. His workmanship was excellent, and he left the area clean and tidy once the job was done. It’s rare to find someone who takes so much pride in their work and genuinely cares about helping people. I’ll definitely be calling Michael again for any future plumbing needs!"

5 Star Rating

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"Very professional very reasonable pricing and to top it off great customer service and quality highly recommend and would definitely use again"

5 Star Rating

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"On The Flow Services were fantastic quick responses fair price, and professional plumbing work Best plumber in Sydney for peace of mind."

5 Star Rating

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"Great communication, tidy workmanship, and honest advice. On The Flow Services are now our go-to Sydney plumbing company!"

5 Star Rating

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"I highly recommend the team from On The Flow Services, they were prompt, tidy, and cleaned up after themselves. Reasonable pricing and professional service, would recommend to family and friends."

5 Star Rating

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"On The Flow Services is easily a 5 star company for me. Michael is a brilliant person, he's very friendly and knowledgeable. Would 100% recommend On The Flow Services to anyone!"

5 Star Rating

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"I called on the flow services because I had no hot water, Michael came out within a few hours and installed a new hot water system for me."

5 Star Rating

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"I contacted Michael from on the flow services and he was really easy to work with and very friendly. The work was high quality and fairly priced. I would recommend this company to all my friends and family with no hesitation."

5 Star Rating

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"Michael was fantastic with fixing the hot water pipe leakage in our ensuite. It wasn't an easy job as he had to remove the vanity, cut the tile on the wall to gain access to the pipe where it snapped. He went above and beyond to fix the problem. Not only he changed the valve on hot water pipe, he proactively checked and fixed the cold water connections as well. He seemed genuine in his communications, and explained everything on the go. It was a pleasure dealing with him. My best wishes to Michael and his company."

5 Star Rating

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"Great service.
Fast and efficient.
Highly recommend."

5 Star Rating

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" Michael and Vis did a wonderful job, Honest, Polite, respectful, young men who worked diligently and very hard to complete the job. Had to get extra material that was no problem Can't wait to see how it stops the flooding in my yard. Would recommend Michael and On The Flow Services to any one and would be happy if other people employed him. Thank you so much Michael for your help and understanding. Regards Barbara"

5 Star Rating

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"On the flow was quick, efficient and very friendly and easy to work with.
I had a blocked sewer and they managed to clear the blockage that another mob couldnt.
I highly recommend this service and i will recommend this company to my friends and family"

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"Overall great experience using this company to satisfy my plumbing needs."

5 Star Rating

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"Just wanted to come on here and share my experience with on the flow services, Called Micheal on a Saturday afternoon due to having no hot water. Micheal attended my property within the hour( as promised) and managed to get my hot water up and running the same afternoon! Would highly recommend and use again next time."

5 Star Rating

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"Would highly highly recommend on the flow for all of your plumbing needs, Michael was great."

5 Star Rating

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"I would strongly recommend on the flow for all of your plumbing needs because, we have had issues with our drainage for many years now, the toilet would always be blocked. Micheal attended and put a special camera through the pipes and knew the issue immediately, we went inside and he ran me through my options to suit my budget, Micheal was very understanding as it is so close to Christmas time, we agreed to the quote and Micheal and his colleague attended the very next day. They spent the day digging and repairing the sewer line, even stayed overtime to ensure the job would be done the next day, thank you Micheal i would definitely use again!"

5 Star Rating

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"Micheal honestly changed my view on plumbers and proved to me that there is true and honest people still in this world, his upfront pricing was very reasonable and he stuck to the quote and the deadline, his work was neat. Would strongly recommend and use again."

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"Would definitely use again, thank you Micheal for fixing our hot water issue, very neat and efficient."

5 Star Rating

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"Called on the flow for a leaking pipe under my bathroom sink during the night, Micheal attended my property and inspected the problem and knew the solution, his quote was reasonable. Would definitely use again, thank you Micheal."

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"Micheal came to inspect my roof leak in Guildford, he offered me a very reasonable price and finished the job quickly and efficiently. I highly recommend him!"

5 Star Rating

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"On The Flow Services were fantastic. Super prompt, professional and fixed the issue quickly. Great communication and fair pricing. Highly recommend!"

5 Star Rating

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"On the Flow Plumbing Services was fantastic—quick response, fair pricing, and excellent workmanship. The team was professional, friendly, and got the job done right. Highly recommend!"

5 Star Rating

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"I had an amazing experience with this plumbing service. From the moment I called, they were professional, friendly, and quick to respond. Micheal the plumber arrived on time, explained everything clearly, and fixed the issue without any hassle."

5 Star Rating

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"I was highly impressed with the service provided by On The Flow Plumbing Service. Michael attended to install a new tap fixture and conducted the work with exceptional professionalism. He arrived on time, completed the installation efficiently, and ensured the workmanship was of a high standard. Michael communicated clearly throughout the process and left the area clean and orderly. I am very satisfied with the service and would confidently recommend Michael for any plumbing needs."

5 Star Rating

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"Great communication. Goes above and beyond for customer satisfaction. Highly recommend Michael for all your plumbing needs!"

5 Star Rating

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"Michael arrived on time was pleasant and explained the whole process. Reasonable priced, and will be using him again."

5 Star Rating

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"Highly recommend Michael.
Arrived promptly, good pricing, explained everything.
Would definitely use again."

5 Star Rating

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"Michael from Flow Services did my gas cooktop installation and was extremely professional and tidy. The work was done efficiently, everything was left clean, and he clearly takes pride in what he does. Highly recommend — quality workmanship like this is hard to find these days."

FAQs

Frequently asked questions

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Are you available for emergency plumbing issues?

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How much does your services cost?

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What plumbing services do you offer?

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Do you offer guarantees on your work?

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How do I know if I need to replace my water heater?