We’re not a plumbing company — and that’s the point.
Buying a home? A pre purchase plumbing inspection could save you from costly surprises. While building and pest reports cover structural issues, most overlook what’s beneath — plumbing, drainage and stormwater systems.
At GemArk, we provide independent plumbing and drainage inspections that help homebuyers understand exactly what they’re getting before they commit.
No repairs. No upsells. Just risk-focused, licensed inspections by experienced master plumbers.
We work for you — not the seller, the agent, or the builder.
What Building & Pest Miss
When buyers choose a targeted plumbing assessment
Some buyers commission a pre-purchase plumbing risk assessment for older, altered or high-value properties — particularly where drainage, stormwater or legacy systems may not be fully understood at inspection time.
This page explains why pre-purchase plumbing inspections and plumbing risk assessments are increasingly considered by buyers in Brisbane and South-East Queensland.
Inspection & Reporting Services
- Pre-Purchase Plumbing Reports
- Insurance Plumbing Assessments
- Technical Plumbing Investigations
- Expert Witness Reports
- Independent Second Opinions
- Property Condition & Risk Assessments
Compliance Testing & Certification
- Backflow Prevention Testing & Certification
- Residential Gas Safety & Compliance
- Caravan & RV Gas Roadworthy Certificates
Property Advisory & Preventative Services
- Annual Plumbing Health Checks
- Rental & Investment Property Compliance Packages
- Pre-Renovation Plumbing Advisory
- Maintenance Forecasting & Risk Planning
Featured in National Property Media
Gemark Consultancy has been referenced by national property media for highlighting a growing blind spot in residential plumbing risk — issues that often remain hidden until years after settlement, despite systems appearing compliant at the time of purchase.
Buying an older or renovated property? Learn how a targeted pre-purchase plumbing inspection can reduce post-settlement risk.
Independent Plumbing & Gas Inspections Brisbane
Need a trusted inspection or report in Brisbane?
At GemArk, we specialise in independent plumbing and gas consultancy services, delivering fully licensed, unbiased, and evidence-based reporting across South East Queensland.
Whether you’re buying a property, renewing insurance, or need compliance for your caravan or home, we provide professional, fast and detailed assessments that meet all regulatory requirements — and give you peace of mind.
Why Choose GemArk for Plumbing & Gas Consultancy?How Our Process Works
We’re Independent
We don’t profit from repairs or installation — our reports are 100% objective, designed to give you clear, honest insights into your plumbing and gas systems.
Fully Licensed & Insured
Our inspectors are QBCC-licensed and fully insured for your protection and confidence. All reports are compliant with current Queensland legislation.
Detailed, Fast Reports
Every inspection comes with same-day or next-day digital reports, featuring annotated photos and a clear summary of required actions.
Turn uncertainty into confidence with a single inspection.
Our Brisbane Plumbing & Gas Services
We offer a comprehensive range of inspection and compliance services, ideal for:
Pre-Purchase Plumbing Inspections
Avoid costly surprises when buying a property. Our licensed pre-purchase inspections uncover hidden plumbing issues — before you commit. this is why a pre purchase plumbing inspection is vital
Gas Compliance Certificates
Selling or renting a caravan, RV, or home? We handle gas compliance certificates in full alignment with QLD law — including caravan gas checks.
Backflow Testing
Ensure your property is protected and water systems are compliant. We test, certify, and submit results directly to your council.
Expert Consultancy & Reporting
Need a second opinion for insurance, legal, or safety concerns? Our consultancy delivers detailed expert witness reports, defect assessments, and more.
Brisbane & Surrounding Areas We Serve
We proudly serve clients across:
- Brisbane Northside & Southside
- Ipswich
- Moreton Bay
- Gold Coast
- Sunshine Coast
- Lockyer Valley
- Toowoomba
If you’re in South East QLD, we’ll come to you.
Common Questions About Plumbing & Gas Inspections
How long does a typical inspection take?
Most inspections take 60–90 minutes, depending on property size and scope. Reports are sent digitally within 24 hours.
Are your reports legally compliant?
Yes. All our reports meet current QLD regulations and can be submitted for insurance, council, or legal use.
Do you offer caravan gas certificates?
Absolutely — we perform gas compliance checks and issue certificates for caravans, RVs, and mobile homes.
Our Purpose
We built GemArk Consultancy to give families, homeowners, and investors a fighting chance in a difficult market. To help people avoid unnecessary debt, stress, and heartbreak. And to give you the power to make informed, confident decisions about the most important investment of your life.
Because when it comes to your home…
you deserve more than guesswork.
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