Leak Detection Sydney
Non-Invasive. Evidence-Based. Fast.
Hidden leaks don’t announce themselves. By the time you notice a damp patch, a spike in your water bill, or a musty smell, water may have already been silently damaging your property for weeks. Evolution Plumbing’s specialist leak detection team locates the exact source of any water leak — anywhere across Sydney — using advanced technology that causes minimal disruption to your home or business.
Sydney’s Trusted Leak Detection Specialists Since 2011
Evolution Plumbing has been proudly serving Sydney property owners, businesses and strata managers since 11 November 2011. Over more than 13years, our licensed team has built a reputation for finding the leaks that others miss — using non-invasive detection equipment and delivering clear, documented evidence of every finding. We work across all property types: residential homes, commercial buildings, apartment complexes and strata-managed properties —covering more than 35 suburbs right across Sydney.
What sets us apart: 
- Evidence-based results backed by thermal imagery, acoustic data and gas readings — not
guesswork - Five professional-grade detection technologies on every job
- Non-invasive methods that preserve your property and reduce repair costs
- Same-day and 24/7 emergency response available across Sydney
- Free on-site quotes with transparent, upfront pricing.
Our Leak Detection Services
Water Leak Detection
Hidden water leaks inside walls, under floors and through building structures are among the most damaging and costly problems a Sydney property can face. Left undetected, they cause water damage, structural deterioration, timber rot and mould growth.
Our team uses thermal imaging cameras and moisture detection equipment to map moisture activity behind surfaces — locating the precise leak source without unnecessary cutting, drilling or demolition. Whether the leak is in a residential wall cavity, a commercial ceiling void or a multi-story building, we find it accurately and document it in full.
Shower & Bathroom Leaks
Leaking showers are one of the most common plumbing issues in Sydney homes and apartment buildings. They are also one of the most misdiagnosed. Water can travel significant distances from the original source before becoming visible, making accurate detection essential before any repairs begin. Our shower leak detection service assesses all potential failure points: waterproofing membranes, grout and silicone joints, waste pipes and puddle flanges, shower screen seals, drain connections and shower recess gradient. We also check basins, toilets and cisterns for related leaks that may be contributing to the problem. By identifying the true cause rather than treating symptoms, we help you avoid costly repeat repairs.
Underground Pipe Leaks
Leaking underground supply lines and stormwater pipes are notoriously difficult — and expensive — to find without the right equipment. Signs include soggy ground, unexplained drops in water pressure, or a water meter that keeps ticking when every tap is off. Our electro-acoustic and tracer gas technology allows us to pinpoint underground leaks to within centimeters, without excavating large sections of your yard, driveway or paving. We confirm the exact position before any digging begins — saving you significant cost and property disruption.
Roof Leak Detection
Roof leaks are deceptive. They often only appear during heavy or directional rain and the water entry point can be located well away from where the stain appears on your ceiling. Our team inspects all critical areas of the roof system: flashing, roof surfaces, joints, fixtures, gutters and downpipes. We identify leak paths caused by weather-dependent conditions and trace water intrusion back to its source. All findings are documented with photographs and a written report.
Slab & Under-Floor Leaks
Warm or wet spots underfoot, cracked or lifting tiles, or a persistently high water bill may all point to a leaking pipe beneath your concrete slab. Slab leaks require fast action — left unaddressed, they can undermine foundations, damage flooring and cause significant structural harm. Evolution Plumbing uses thermal imaging cameras and electro-acoustic equipment to locate under-slab leaks precisely. By confirming the exact position before recommending any concrete breaking, we keep the repair area as small as possible.
Moisture, Mould & Water Damage
Persistent moisture trapped inside walls, subfloor spaces or roof cavities leads to more than just water damage. Over time it causes structural rot, failure of insulation, health risks from mould spores, and reduced property value. Our moisture detection equipment measures the moisture content of timber, plasterboard, masonry and screed across all affected building elements. We identify the extent of moisture infiltration, trace it to the source, and provide recommendations for both leak repair and remediation of any resulting damage.
Our Leak Detection Technology
At Evolution Plumbing, we use five professional-grade detection technologies to ensure every leak is found accurately, efficiently and with minimal disruption.
Thermal Imaging Camera Thermal cameras detect the temperature differential caused by evaporating or pooling water, creating a precise visual map of moisture activity behind walls, ceilings and floors. Completely non-invasive, thermal imaging is one of the most powerful tools available for identifying hidden leaks in both residential and commercial buildings.
Electro-Acoustic Technology Water escaping from a pressurised pipe produces a distinctive sound signature — higher frequency for smaller leaks, lower frequency for larger ones. Our electro-acoustic listening equipment amplifies and analyses these sounds through surfaces and soil, pinpointing the exact leak location along buried or concealed pipework.
Tracer Gas Detection A non-toxic, non-flammable tracer gas is injected into the pipe under test. Our electronic detector then traces where the gas escapes at the surface, enabling highly accurate detection of even micro-leaks in deeply buried or inaccessible pipework — through concrete, paving, soil or landscaping.
Electronic Leak Detector Used in combination with tracer gas, our electronic leak detectors measure gas concentration at the surface with pinpoint precision. This combination is particularly effective for detecting small leaks in pipes running beneath concrete slabs, driveways or tiled courtyards.
Moisture Detection Calibrated moisture meters measure the moisture content in timber, plasterboard, screed and masonry. They are essential for mapping the extent of water infiltration and identifying building elements at risk of rot, mould or structural failure — guiding effective, targeted repairs.
How Our Leak Detection Process Works
Step 1 — Contact Us Call, text or submit our online form. We confirm your booking, provide an upfront quote and schedule a time that suits you — including same-day and emergency appointments across Sydney.
Step 2 — On-Site Inspection Our technician arrives with a full equipment kit and conducts a systematic, non-invasive assessment of the affected areas. We take the time to understand the problem before selecting the most appropriate detection method.
Step 3 — Pinpoint the Leak Using thermal imaging, electro-acoustic or tracer gas methods — or a combination — we precisely identify the leak source. All findings are documented with on- site photographs and notes.
Step 4 — Report & Repair You receive a clear written report detailing the leak location, likely cause and recommended repair scope. We carry out or coordinate the repair and can provide documentation suitable for insurance claims or strata records.
Why Sydney Property Owners Choose Evolution Plumbing
Over 13 Years of Local Experience Since 11 November 2011, Evolution Plumbing has been one of Sydney’s most experienced leak detection providers. We understand the region’s building stock, climate and common plumbing failure points — knowledge that only comes from years of real on-the-ground work.
Evidence You Can See and Use Every leak we find is backed by documented evidence — thermal images, acoustic readings or gas test results. Our reports support insurance claims, strata
dispute resolution and council compliance records.
Minimal Disruption to Your Property Non-invasive detection means we confirm the leak location before recommending any access work. No unnecessary tile removal, wall cutting or yard excavation. When repairs are required, the affected area is kept as small as possible.
Transparent, Fair Pricing We discuss costs before starting any work. Free on-site quotes, no hidden call-out fees, and clear written scope — so you always know what you’re paying for and why.
24/7 Emergency Response Water leaks don’t keep business hours. Our team is available around
the clock for emergency leak detection and response across all Sydney suburbs.
Signs You May Have a Hidden Water Leak
If you notice any of the following, contact Evolution Plumbing for an inspection:
- Your water bill has increased unexplainably
- You can hear the sound of running water when all taps and appliances are off
- Damp, discoloured or stained patches on walls, ceilings or floors
- Musty odours or visible mould growth in rooms without obvious moisture sources
- Tiles that are cracking, lifting or becoming loose
- Warm spots on a concrete floor or slab
- Soft, wet or unusually green patches in your garden or lawn
- A water meter that continues to move with all water supply turned off at the meter
These signs all point to a hidden leak that should be professionally assessed before further damage occurs.
Leak Detection Across All Sydney Suburbs
Evolution Plumbing provides leak detection services right across Sydney, including:
- Auburn · Bankstown · Blacktown · Bondi · Campbelltown · Castle Hill · Chatswood · Concord ·
- Cronulla · Croydon Park · Dee Why · Edensor Park · Epping · Fairfield · Hornsby · Hurstville ·
- Kirribilli · Lane Cove · Leichhardt · Liverpool · Macquarie Park · Manly · Menai · Milsons
- Point · Mosman · North Rocks · North Sydney · Oatley · Parramatta · Penrith · Ryde · Sans
- Souci · South Hurstville · Strathfield · Surry Hills · Sutherland
Not sure if we cover your area? Contact us — we travel for commercial and strata jobs across
Greater Sydney.
Frequently Asked Questions
How much does leak detection cost in Sydney?
The cost depends on the type of leak, property size and the technology required. Evolution Plumbing provides free on-site quotes before any work begins. We are fully transparent about pricing with no hidden fees or surprise call-out charges.
Will you need to break walls or dig up my yard?
In the vast majority of cases, no. Our thermal imaging, electro-acoustic and tracer gas equipment allows us to confirm the exact leak location non-invasively. We only recommend targeted access — drilling, tile removal or excavation — once the precise position is confirmed, keeping the disruption area as small as possible.
How do I know if I have a hidden water leak?
Common signs include an unexplained rise in your water bill, damp patches on walls or ceilings, running water sounds with all taps off, mould or musty odours, cracked floor tiles and wet spots in the yard. If you notice any of these, contact us for a professional assessment.
Do you provide reports for insurance claims?
Yes. Every inspection is documented with photographs and a written report covering the leak location, probable cause and recommended repairs. These reports are accepted by home insurers and strata managers across Sydney.
Do you work in strata and apartment buildings?
Absolutely. We regularly work with strata managers, owners corporations and building managers to investigate inter-tenancy leaks, common area water ingress, and roof or balcony waterproofing failures in multi-unit buildings.
Are you available for emergency leaks?
Yes — 24 hours a day, 7 days a week. If you have an urgent leak anywhere across Sydney, call us and our team will respond as quickly as possible.
How long has Evolution Plumbing been operating?
Evolution Plumbing PTY LTD was founded on 11 November 2011 and has been serving Sydney properties for over 13 years. We are a fully licensed and insured business registered under ABN 58 154 227 255.
Book a Leak Detection Inspection
Don’t let a hidden leak become a major repair bill. Contact Evolution Plumbing today for a free on-site quote and fast, professional leak detection anywhere across Sydney. Call us 24/7 Book online — free quote, no obligation.