Sunday  February 25, 2018
Professional indemnity Insured and Licensed Company ABN: 20 054 540 395 ACN: 054 540 395

In 1976, at Strathfield Sydney, Robert Speirs-Ferrari established a licensed building and design company providing building advice solutions, architectural designs and hands-on construction. In 1986 at Lane Cove Sydney, Robert established a Building Diagnostic Consultant firm. In 1989, Building Diagnosis Centre Pty Limited for Building Engineering Consultants and Building Dispute Consultants.

Our Experts
Our Experts

Building Diagnosis Centre chartered fellow and accredited building inspector and building consultants have a wealth of court expert knowledge. Specialists forensic building consultants, eliminate faulty waterproofing, concrete corrosion, building faults, disputes, issues with asbestos and building access for people with disabilities. Call Robert Speirs-Ferrari to discuss your building complaint.

Expert Advice
Expert Advice

Our senior building consultants will give you expert advice how to prevent building damage, resolve construction problems, causes of corroding waterproofing damage, faulty concrete and steel structures. We supervise remediation, inspect faulty construction work and handle building contract disputes regarding costs and faulty work complaints. Call us today and talk about it with Robert Speirs-Ferrari.

We give best expert building advice Established 40 Years


Building Diagnosis Centre – building consultants founder in 1986. Are leading Sydney Manly based Australian forensic building, waterproofing, and engineering consultancy firm. Building experts regularly examine heritage to modern residential, commercial, industrial, and local government properties.

Known for their expertise, knowledge and experience, offer first class objective investigative analysis on faulty buildings, property condition and compliance. Technical reports are communicated in ‘Plain English’ together with photographic evidence.

Contact us now for specialist building and waterproofing advice and expert witness testimony in building and waterproofing disputes. We customise our regular remedial solutions to suit individual needs and certify properties sound on completion.




Building, Waterproofing & Engineering Advice

The building and design specialists each have 30+ years professional and hands-on experience. Have the acquired skills to successfully investigate damaged coastal, suburban and city properties. Offer genuine expert advice and inspections to resolve building and waterproofing issues and disputes in relation to:



We leave no stone unturned!

Our consultants are professional members of:


Building Engineering Consultants


Information on Building Complaints 

By Company Director

Robert Speirs-Ferrari FAIB NBPR MMBA MBDA AffilIEAust


Clients Guaranteed To Receive Best Practice Advice 

Building Diagnosis Centre seasoned chartered accredited specialists consultants and building experts, provide best practice advice. Best practice advice on building faults and damage is critical. This includes when giving evidence as court expert witness in building waterproofing disputes. We have the advantage i.e.:



Client satisfaction list of advantages



Summary information – of our consulting service

“Solutions for faulty buildings, building design issues, deterioration and construction complaints.”



Diagnostic building investigations

As passionate multi-disciplinary building problem solvers, our aim is always to achieve what is best for our clients’ buildings and structures. Properties need to comply and to continue to perform satisfactory for their intended use and when selling to new owners. We achieve this by best practice property inspection surveys, investigating construction work in progress, checking condition and suitability of materials including containing bonded fibro asbestos cement.

We evaluate specifications, architectural and engineering drawings, contract documents, and local council approvals. Properties are also assessed against the National Construction Code Building Code of Australia (NCC/BCA), Australian Standards and manufacturers’ technical data sheets. When necessary, we assist clients in dispute and litigation as expert witness opinion evidence in NSW Fair Trading NCAT and Courts.



Expert Reports  &  Specifications

Verbal Reports

Clients receive verbal reports at the property that contain best expert opinion evidence and practical advice. Advice includes explaining causes of contract dispute issues, reasons faulty work occurred, remedies and solutions of building and waterproofing defects as well as construction damage that occurred and if damage is due to normal ‘wear and tear’. Advantages – includes given in person immediately at the property allowing clients to discuss and fully understand the situation. Advice also given by phone conference whilst at the property or afterwards.

Photographic Evidence Reports

Photographs we take of our inspection areas and relied upon for future evidence, as well as for preparing a quick turnaround photographic evidence report with captions and a covering letter of our findings. Advantages – photograph documents can be served on the other party as a stand alone evidence document as a strategy to settle a building issue. Forms part of the more expensive comprehensive written expert report.

Written Reports

When required, our expert written reports fully document our observations, testing, opinions, and with our practical solutions. Solution specify necessary scope of work for costing by experienced independent remedial builders – we recommend and can project manage remedial works instructed by client.



Project Manage Waterproofing Issues

Our chief expert Robert Speirs-Ferrari*, project manages our clients’ works for quality control inspections of waterproofing membranes roofs, roof and wall flashings and remedial work at critical stages to certify compliance and progress payments. Common complaints and remedial work is water related defects to strata units’ balconies, terraces, flat roofs, wall flashings and rising/penetrating damp. We commonly give advice on the effects of water ingress from strong wind-driven rain, due to faulty waterproofing membranes; a key factor requiring expensive rectifications. Robert continues to put people in safe and sound waterproofed buildings and structures.



Project Manage Spalling Concrete Issues

Coastal Corrosion Strata Damaged Buildings

Our chief expert Robert Speirs-Ferrari*, project manages our clients’ works by inspecting remedial work at critical stages to certify compliance and progress payments. Common complaints and remedial work is water related defects. We commonly give advice on the effects of water ingress from strong wind-driven rain, due to faulty waterproofing membranes; a key factor requiring expensive rectifications. Robert continuously puts people in safe and sound waterproofed buildings and structures.



Building Expert Litigation Consultant

*Robert Speirs-Ferrari FAIB MMBA MBDA NBPR AffilIEAust chartered fellow building professional, accredited building consultant, waterproofing consultant, consulting building designer, licensed builder and licensed asbestos inspector with 40-years’ career experience in the building and construction industry. Robert gives general and specialist building construction advice on causes of building waterproofing complaints and disputes together with practical solutions.



Building Disputes Experts 

Technical inquires for expert solutions to building disputes, are handled by our chief forensic expert Robert Speirs-Ferrari*. Robert is a leading building and design expert, advising clients on best solutions to damaged building construction and claims made under Home Warranty Insurance – NSW Home Building Compensation Fund. Robert represents clients at NSW Fair Trading mediation, NSW Civil and Administrative Tribunal (NCAT) and Courts. As expert witness Robert complies with all requirements of the Expert Witness Code of Conduct.



Our Consultants  Proven Diagnostic Procedure

Our professional procedures provided by our qualified experienced multi-disciplinary chartered and accredited building consultants, waterproofing consultants and structural engineers, suits all properties in residential and commercial strata buildings (and industrial and local government structures). Our proven systematic approach identifies construction concerns, complaints, damage, faulty work and materials. This results in our building experts properly diagnosing and determining building damage sustained, causes, and required solutions resolving building and construction disputes. Part of our building inspectors and forensic building and waterproofing experts proven systematic approach is our 10-point methodology listed below.



Our 10-point service methodology

We leave no stone unturned!

1 Discussion – we need the full history of the building waterproofing issue.

2 Inspection – we undertake our visual building inspections.

3 Testing – we perform moisture meter tests for rising damp, water ingress through walls, balconies or roof membranes.

4 Examination – physical exploratory intrusion into wall cavities determines root causes / problems.

5 Assessing – we analyse and evaluate our findings and provide research.

6 Reporting – prepare expert’s report and photographic evidence.

7 Remedial work – conclusion includes comprehensive scope of rectifications.

8 Recommendations – we advise on remedial building contractors for quotations.

9 Contracts and manage – we arrange NSW Fair Trading building contracts. Project inspection of work, certify at critical stages, progress payments, and on completion.

10 The Results – Once done, the benefits to our clients is a sound, safe, waterproofed property.


Get in touch today with your enquiry or building complaint


Telephone Sydney Manly on 0408 911 210, or office (02) 9402 0140

Robert Speirs-Ferrari FAIB MBDA MMBA NBPR AffilIEAust

M.Dsgn(UTS), GradDip.Dsgn, GradCert.Dsgn, Cert.ArchHerit,
Dip.BldgConst, Cert.Lic’d Bldg, Cert.Lic’d Asbestos Superviser, Cert.WaterproofConst,

Managing Director, Principal MBA Accredited Building Consultant, BDA Building Design Consultant, FAIB Chartered Fellow Builder, FAIB Chartered Fellow Building Professional, WCA Asbestos Inspector, OFT Licensed Builder and Waterproofing Consultant