Pre-Purchase Plumbing and Leak Inspection

Make an Informed Decision Before You Buy

Buying a property is a major investment — and hidden plumbing or leak issues can turn it into an expensive problem. Sydney Underground provides comprehensive pre-purchase plumbing and leak inspections for homes, apartments, and commercial buildings across Sydney.

Our inspections identify existing and potential water or gas leaks, plumbing faults, moisture damage, and other hidden defects that may affect the property’s safety, value, or compliance.

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Non Destructive

Detect leaks with zero damage to your property. Our advanced technology pinpoints issues without drilling, cutting, or creating a mess, saving you time and costly repairs.

Fast & Affordable

We deliver quick, accurate leak detection at competitive rates. Get same-day service and clear results that keep your project on schedule and within budget.

Residential & Commercial

Whether it’s a home, office, or industrial site, we provide reliable leak detection solutions tailored to your property type and specific plumbing systems.

Why You Need a Pre-Purchase Plumbing Inspection

Hidden plumbing issues are one of the most common causes of property damage and unexpected costs for new homeowners. A detailed plumbing and leak inspection can help you:

Avoid costly surprises such as burst pipes, leaking showers, or corroded gas lines
Identify hidden water or gas leaks that may not be visible during a standard building inspection
Negotiate with confidence, armed with a clear understanding of the property’s true condition
Ensure plumbing and gas systems comply with current Australian standards
Protect your property’s long-term value and safety

What Our Inspection Includes

Our licensed technicians perform a full, non-invasive inspection using thermal imaging, acoustic listening, tracer gas detection, and moisture mapping to locate leaks with pinpoint accuracy.

We check all major plumbing and gas systems, including:

Water and gas supply lines for hidden or active leaks
Bathrooms, kitchens, and laundries for water ingress or drainage issues
Ceilings, walls, and slabs for moisture or pipe failures
Roofs, balconies, and gutters for waterproofing defects
Underground water or gas pipes and connections
Signs of damp, mould, or past water damage

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Leak Detection Experts You Can Trust

Sydney Underground delivers precise, non-invasive leak detection for homes, businesses, and trades. Our expert technicians use advanced technology to locate hidden leaks quickly, helping you prevent costly damage and unnecessary disruption.

Thermal Imaging Detection

Reveal hidden leaks using advanced infrared imaging for precise, damage-free results.

Acoustic Leak Detection

Trace leak sounds through pipes with pinpoint accuracy and zero disruption.

Tracer Gas Detection

Find tiny concealed leaks using safe tracer gas for exact results.

Moisture Detection

Detect trapped moisture early to prevent damage and protect your property.

Trusted Pre-Purchase Plumbing & Leak Inspections In Sydney

Sydney Underground is a specialist leak detection and repair company trusted by homeowners, plumbers, property managers, and real estate professionals across Sydney. We combine years of hands-on plumbing experience with advanced leak detection technology to deliver fast, accurate, and non-destructive results.

Whether you’re buying, selling, or managing a property, our pre-purchase plumbing and leak inspection gives you complete clarity before settlement — helping you make confident, informed decisions.

Our experienced team services residential, commercial, and strata properties, providing precise detection and reliable reporting for all types of water and gas leaks, underground faults, and plumbing defects.

No job is too small or complex — we support plumbing companies, builders, insurance providers, and property owners with the same commitment to accuracy and integrity.

Complete Pre-Purchase Inspection Reports

Sydney Underground provides detailed, insurance-ready inspection reports that meet professional and compliance standards.

Assessment

Identifying the leak, its location, and the extent of damage or risk.

Remedial Recommendations

Clear, practical steps to fix the issue and prevent recurrence.

Analysis of Cause

Technical insight into how the fault occurred, with notes on compliance and best practices.

Photographic Evidence

Thermal imaging and visual documentation for full transparency.

Our reports are designed for use by homebuyers, real estate agents, insurance companies, and builders, offering professional documentation you can trust.

“

Fantastic service from start to finish. The team found a hidden leak under our bathroom floor without having to tear anything up. They explained everything clearly and had it repaired the same day. Highly recommend them to anyone dealing with mystery leaks!
Michael T.

“

We’ve used them for multiple jobs now, and they’ve never let us down. Their detection tools are spot-on, and they always provide clear reports that make our repair work so much easier. Fast, professional, and great trade pricing.
Daniel R.

“

I was dreading a huge plumbing bill, but these guys located the leak in minutes with no damage to my walls. The technician was polite, knowledgeable, and got everything sorted quickly. Really appreciate the honest pricing too.
Sarah K.

“

Professional, efficient, and genuinely easy to work with. They located several leaks across multiple units with minimal disruption to residents. Clear communication, transparent pricing, and excellent results.
Rebecca L.

“

After weeks of water bills skyrocketing, we finally called in the experts, best decision we made! They identified the issue underground and fixed it without any digging. Excellent service and communication throughout.
Lisa W.

“

Our business relies on fast, accurate detection to avoid costly downtime, and this team delivers every time. Their reports are detailed, their equipment is first-class, and they always show up when promised. Couldn’t ask for better support.
Paul M.

Book Your Pre-Purchase Plumbing & Leak Inspection Today

Don’t risk hidden leaks or costly plumbing damage in your new property.
Call 0450 637 577 or email info@sydneyunderground.com.au to book a pre-purchase plumbing inspection in Sydney.

Contact Us

Get in touch with our expert team for fast, accurate, and non-invasive leak detection. We service homes, businesses, and trades across Sydney with precision and care.

P: 0450 637 577

E: info@sydneyunderground.com.au

We’re here to help you detect and repair leaks before they cause damage — no drilling, no mess, no stress.

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Please complete the form to submit an enquiry.