Cracking, structural failure or a building dispute? You're in the right place.
RPEQ Forensic & Structural Engineers - Brisbane, Logan, Ipswich, Gold Coast & Adelaide
Independent forensic and structural engineering across South East Queensland and Northern NSW. Our RPEQ-registered engineers investigate building defects, cracking and structural failures and provide clear reports for repairs, insurance claims and disputes. We also handle structural design, inspections, Form 12 & 15 certifications, dilapidation surveys, remedial inspections and pre-purchase reports, backed by over 20 years of combined experience across Brisbane, Logan, Ipswich and the Gold Coast, now servicing Adelaide too.
OVER 20 YEARS OF FORENSIC & STRUCTURAL ENGINEERING KNOW-HOW
Experienced RPEQ Forensic & Structural Engineers Across Brisbane, Logan, Ipswich & the Gold Coast
With over 20 years of combined experience, DNR Engineering Services investigates building defects and structural failures and delivers structural design, inspections and certifications across South East Queensland. Our RPEQ-registered engineers provide clear, independent reports for repairs, insurance claims and disputes, plus practical support for builders, homeowners and developers.
We specialise in:
- Forensic investigations and expert reports for building defects and structural failures
- Structural inspections for cracks, movement or damage
- Form 12 & 15 certifications for council or private certifiers
- Structural design for new builds, extensions, carports and patios
- Dilapidation surveys and pre-purchase structural reports
- Remedial inspections for existing structural issues
We work closely with clients to get projects approved faster, keep builds on track, and make sure everything complies with Queensland building codes. Whether you are investigating a problem, building, buying or fixing, our team is here to help.
quality Services
Forensic & Structural Engineering Services Across Brisbane, Logan, Ipswich & the Gold Coast
Looking for help with a building defect, structural failure, or your next build? We provide expert forensic and structural engineering services across South East Queensland, backed by over 20 years of experience and RPEQ registration. Whether you need a problem investigated, a property assessed, or reports for approval, our team is here to help.
Forensic Engineering
We provide independent forensic engineering services to investigate structural damage, building defects and failures. Our engineers assess the cause of issues such as cracking, movement and construction defects, delivering clear reports suitable for insurance, legal matters and rectification planning.
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Structural Design Engineering
We provide custom structural design services for residential builds, home extensions, retaining walls, patios and carports. All drawings and calculations are prepared and signed by RPEQ engineers, ensuring full council compliance and peace of mind for your builder.
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Structural Inspections
Our team carries out thorough structural inspections across Brisbane, Logan and Ipswich for homes showing cracks, sinking or movement. You’ll get a clear, no-nonsense report that identifies the issue and outlines your next steps.
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Form 12 & Form 15 Certifications
We issue Form 12 and Form 15 certificates for structural design and completed works. These documents are required for council sign-off and must be completed by an RPEQ-certified structural engineer in Queensland.
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Dilapidation Surveys
Our dilapidation reports document the condition of neighbouring properties before nearby excavation or construction work. Ideal for builders and developers, these reports help protect against damage claims and provide legal protection.
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Remedial Inspections
If your structure has shifted, cracked or failed, our team can provide a remedial structural inspection to assess the issue and recommend safe, cost-effective repairs. Reports are clear and practical—ready for your builder or contractor.
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Pre-Purchase Reports
Buying a house or investment property? Our pre-purchase structural reports give you a clear picture of the structure’s condition before you commit. Know the risks upfront and avoid costly surprises later.
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Technical Reporting & Documentation
We prepare detailed engineering reports and technical documents for private certifiers, council applications and insurance purposes. Everything is signed by an RPEQ engineer and tailored to your project needs.
Explore moreWhether you’re investigating a problem, building, or buying, DNR Engineering provides practical forensic and structural advice, backed by local experience and RPEQ registration. We work across Brisbane, Logan, Ipswich and the Gold Coast and we’re ready to help with your next project.
Need help with inspections, certifications or engineering reports?
Independent Forensic Engineering - Brisbane & Adelaide
When a building cracks, moves, leaks or fails, you need to know why, and what to do about it. Forensic engineering is the independent investigation of structural and building failures. We inspect, test where needed, and set out our findings in a clear report you can use for a repair, an insurance claim, a body corporate matter or a dispute. We work across all property types, from homes and residential developments to commercial and industrial buildings.
What we investigate
- Cracking and structural movement in walls, slabs and beams
- Foundation movement, subsidence and settlement
- Retaining wall failure
- Concrete cancer, spalling and reinforcement corrosion
- Water ingress affecting structure
- Facade and cladding issues
- Structural failure or collapse
- Structural adequacy and change of use
Our process
- Site inspection – we attend and assess the structure and the damage.
- Investigation – document and drawing review, and testing where required.
- Report – a clear report: the cause, the responsibility, and the recommended fix.
- Rectification – we can provide the remedial design and act as an expert witness (QCAT in Queensland, SACAT in South Australia) if the matter goes to a tribunal or court.
Who we help
Insurers, lawyers, strata and body corporate, builders and developers, homeowners, and commercial and industrial owners.
Testimonials
Looking for reliable help with your build, inspection or council approvals? We provide expert structural engineering services across South East Queensland—backed by over 20 years of experience and RPEQ certification. Whether you’re planning a new build, buying a property, or need reports for approval, our team is here to help.
EXCELLENT Based on 16 reviews Posted on Google Eileen JacobTrustindex verifies that the original source of the review is Google. We found Ash excellent in providing advice on a retaining wall project and a report on a bathroom leak. He was thorough in his investigation and clear in his communication and we will definitely be using him again.Posted on Google MTrustindex verifies that the original source of the review is Google. Called several structural engineer companies to do a pre purchase inspection for us in the Building+Pest period so we needed it asap, Ash and his team were the only ones who efficiently organised everything and were easy to reach, showed up on a Saturday and gave us a detailed report promptly. Highly recommend these guysPosted on Google Nicholas LordTrustindex verifies that the original source of the review is Google. Highly recommend Ash from DNR! He was extremely helpful and polite from the first phone call and was clear he has a lot of experience in the field.Posted on Google Harinda WewalaTrustindex verifies that the original source of the review is Google. We recently spoke with a structural Engineer (Ash) at DNR Engineering Services regarding concerns about retaining walls and possible movement around a property, and I was very impressed with the level of support provided. Even over the phone, Ash took the time to listen carefully, ask the right questions, and explain things in a way that was easy to understand. His advice felt genuine, practical, and based on real experience rather than trying to upsell unnecessary work. Ash gave clear guidance on what to monitor, what signs to look out for, and when a further inspection may be needed. It was reassuring to speak with someone knowledgeable who was willing to help and provide honest advice without rushing the conversation. I would definitely recommend DNR Engineering Services to anyone needing structural or retaining wall advice.Posted on Google Annie YueTrustindex verifies that the original source of the review is Google. We engaged DNR for a structural inspection after finding termite damage in our home. They were great to deal with – very thorough inspection and a clear, detailed report that helped us understand what’s going on and what we need to do next. Communication was smooth and professional the whole way through. Definitely recommend them if you need a structural inspection, especially for termite damage or before renovation.Posted on Google Caron DrewettTrustindex verifies that the original source of the review is Google. Ash from DNR Engineering was great to deal with from our first phone call. He was very knowledgeable and understood all aspects of the issue. He provided a prompt and efficient service and was a pleasure to deal with.Posted on Google Jono WoodTrustindex verifies that the original source of the review is Google. Ash was extremely helpful, willing to have a chat on the phone and talk through all the questions we had. Highly recommendPosted on Google Zonair NaeemTrustindex verifies that the original source of the review is Google. Ash provided great structural engineering advice for my new buildPosted on Google Bradley JordanTrustindex verifies that the original source of the review is Google. I can't rate Ash from DNR highly enough. He recently completed a structural assessment of my house that had been experiencing some cracking. Ash was very thorough with his report and clearly outlined the cause of the cracking, along with some practical solutions to rectify the issue and prevent it happening again in the future. Ash was very timely in his responses, exceptional service overall.Posted on Google Elijah SpurwayTrustindex verifies that the original source of the review is Google. Ahsin helped me out with some extensions on my house and provided good detailed drawings and certification. Highly recommendVerified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
NOW SERVICING SOUTH AUSTRALIA
Forensic & Structural Engineering in Adelaide
We are now bringing independent forensic and structural engineering to Adelaide and South Australia. National Engineering Register (NER) registered and servicing Adelaide and the surrounding areas, with clear, independent reports for building defects, cracking and structural failure.
Get in touch!
Contact DNR Engineering Services today and speak directly with an engineer. We’ll help you keep your build safe, approved and moving forward.talk to us
Let’s Talk Structural Engineering
Need a structural inspection, a quick Form 15, or help with plans for your next build? We make it easy to get expert advice—fast.
📍 Based in Browns Plains and working across Brisbane, Logan, Ipswich and the Gold Coast, we’re ready to visit your site, review your documents or chat through the next steps.
✅ RPEQ-certified
✅ Fast response
✅ Clear pricing
✅ No tech talk—just solid advice
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0429 304 104

