Building Inspection Services Perth

Inspection	Best suited for	Main purpose	Relevant requirements	Report
Pre-purchase	Existing property buyers	Identify significant defects and safety hazards	AS 4349.1–2007	Within 24 hours
Building + pest	Existing property buyers	Building defects plus timber pest assessment	AS 4349.1 + AS 4349.3	Within 24 hours
Stage inspection	New homes	Check construction before work is concealed	NCC + relevant Australian Standards	Within 24 hours
PCI	New homes before handover	Defects, incomplete work and workmanship	NCC, plans and relevant standards	Within 24 hours
Structural inspection	Owners/buyers with specific concerns	Investigate cracking, movement, roof issues etc.	Relevant standards depending on defect	Written report
Dilapidation report	Properties near construction	Document existing condition	Photographic condition record	Written report

Why Choose Master Building Inspectors

Master Building Inspectors provide expert building inspections for homebuyers, owners, and investors. Our licensed WA registered builders identify defects, safety hazards, and poor workmanship, delivering detailed photo-documented reports within 24 hours. Whether you’re purchasing a property or checking your existing home, our building inspections give you confidence and peace of mind.

✅ Licensed WA Builders, not just inspectors
✅ Fully insured with Public Liability & Professional Indemnity
✅ Extensive trade and construction backgrounds
✅ Detailed photo reports delivered within 24 hours
✅ Serving Perth homeowners, buyers, and investors with integrity

Trusted by Perth homeowners and investors — over 20,000 inspections completed.
Rated ⭐⭐⭐⭐⭐ by clients for accuracy, reliability, and clear reporting.

Building inspections in Perth start from just $480. Combined building and timber pest inspections are also available for complete protection.

Understanding the Property Purchase Process

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When purchasing a property in Perth, defects may not be obvious during a standard property viewing and can result in unexpected repair or maintenance costs after settlement.

A professional pre-purchase building inspection can identify significant defects, safety hazards and other visible building concerns before you commit to the purchase. Our reports are written in clear language, supported by photographs and conducted in accordance with AS 4349.1–2007.

Arranging a building inspection before settlement can help you better understand the condition of the property. Where defects are identified, the findings can be discussed with your settlement agent, conveyancer or seller, subject to the terms of your contract.

With Master Building Inspectors, your inspection is carried out by an experienced WA registered builder with extensive knowledge of Perth construction methods and building standards.

Book your pre-purchase building inspection in Perth and make a more informed property decision.

⭐⭐⭐⭐⭐ They identified a critical brickwork issue during our pre-purchase inspection. The owner fixed it before settlement — saving us thousands!
— Sarah, Fremantle

Building Inspection Services Perth – Australian Standard 4349.1

AS 4349.1–2007 Inspection of Buildings – Part 1: Pre-purchase Inspections – Residential Buildings sets out the minimum requirements for pre-purchase building inspections and reports.

Our residential pre-purchase building inspections are conducted in accordance with AS 4349.1–2007 – Inspection of Buildings, Part 1: Pre-purchase Inspections – Residential Buildings, published by Standards Australia.

The standard requires the inspection to be carried out by a suitably qualified and experienced person who can provide appropriate advice to prospective property buyers.

AS 4349.1 applies to residential buildings including detached houses, semi-detached homes, terraces, villas, townhouses and multi-unit residential buildings.

Before the inspection takes place, a pre-inspection agreement should be provided to the client. This agreement defines the purpose and scope of the inspection, any limitations and the acceptance criteria used when assessing the property.

The condition of the property is assessed relative to buildings of a similar age and construction type that have been reasonably maintained. The inspection also considers the construction practices and standards generally accepted at the time the building was constructed.

                              

Significant Items Relating to Building Inspections & Property Inspection Reports

The significant items identified within a pre-purchase building inspection report may include:

Safety Hazard: An item that may present a serious or immediate risk to occupants and requires appropriate attention.

Major Defect: A significant defect that may affect the structural integrity, safety or serviceability of the building and may require substantial rectification.

Minor Defect: A defect that is generally less significant and may include items such as minor cracking, corrosion, deterioration or general maintenance issues.

Where appropriate, recommendations may also be provided for further assessment by suitably qualified trades or specialists.

Where cracking is identified to masonry walls, the damage may be assessed with reference to AS 2870–2011 Residential Slabs and Footings.

AS 2870 classifies wall damage from Category 0 – Negligible through to Category 4 – Severe. Crack width is an important factor when determining the damage category; however, the location, number of cracks and effect on the building may also be considered. For easily repaired plasterboard or similar framed partitions, the crack-width limits may be increased by 50%.

Master Building Inspectors provides clear, photo-documented reports with evidence-based conclusions explaining the overall condition of the property and any significant defects identified during the inspection.

Local Service Areas

We provide building inspection services throughout the Perth metropolitan area, including Joondalup, Fremantle, Rockingham, Mandurah, Ellenbrook, Wanneroo and Canning Vale.

Wherever your property is located, our inspections are carried out by experienced WA registered builders and supported by clear, photo-documented reports.

Common Defects We Identify

During building inspections across Perth, some of the most common defects we identify include:

• Cracking to walls and ceilings
• Inadequate roof tie-downs or bracing
• Waterproofing defects in wet areas
• Poor brickwork or mortar joints
• Termite or timber pest damage
• Visible electrical or plumbing concerns requiring further assessment by an appropriately licensed contractor

Identifying these issues early can help buyers and homeowners better understand the condition of the property and any potential repair or maintenance requirements.

Book your Perth building inspection today — reports generally provided within 24 hours.

Cracking to Masonry Walls – What Is Considered Defective During a Building Inspection?

Cracking to masonry walls is commonly identified during building inspections in Perth. However, not all cracking is considered structurally significant.

The significance of cracking depends on factors such as the crack width, location, pattern, extent and whether there are other signs of building movement. Where appropriate, cracking may be assessed with reference to the damage categories contained within AS 2870 – Residential Slabs and Footings.

Perth homes commonly use masonry construction for both external and internal walls. Masonry is a relatively rigid building material, so minor movement within the building, changes in moisture conditions and normal thermal movement can result in visible cracking.

Cracking can also occur where different building materials meet. A common example is cracking at the junction between plastered masonry walls and plasterboard ceilings or cornices.

The WA Guide to Standards and Tolerances recognises cracking at cornice joints and at junctions between dissimilar materials and provides tolerances for determining when this type of cracking may be considered defective.

Cracking can also occur in newly constructed homes as the building materials dry, settle and respond to normal movement. However, larger, progressive or unusual cracking may require further assessment to determine the cause and whether remedial work is necessary.

If you are concerned about cracking to walls or ceilings, Master Building Inspectors can assess the visible condition of the property and provide recommendations where further investigation is required.

Perth’s Building Inspection Industry – Is It Regulated?

Pre-purchase building inspectors in Western Australia are not currently subject to a specific government licensing or registration scheme for building inspection services.

This means the experience and qualifications of building inspectors can vary considerably.

When choosing a building inspector, it is important to check their construction experience, professional qualifications, insurance and whether they have the technical knowledge required to properly assess the property.

Master Building Inspectors uses experienced WA registered builders to carry out building inspections throughout Perth. Our inspectors have extensive building and construction backgrounds and are supported by Professional Indemnity and Public Liability Insurance.

For a pre-purchase inspection, choosing an inspector with recognised building qualifications and practical construction experience provides greater confidence that significant defects and building concerns will be properly identified and clearly explained.

Combined Building & Pest Inspections

Our combined building and timber pest inspections are carried out by two suitably qualified inspectors, generally attending the property at the same time and working together throughout the inspection.

This provides separate building and timber pest expertise while allowing any related issues to be assessed and discussed during the inspection.

You will receive a clear, comprehensive and photo-documented building and timber pest report, generally within 24 hours of the inspection.

Where significant structural concerns or major defects are identified, our inspectors can also discuss these findings with you before the completed report is issued.

Our pre-purchase building inspections are conducted in accordance with AS 4349.1, while timber pest inspections are conducted in accordance with AS 4349.3.

 

Master Building Inspectors reports include a clear conclusion providing an overall assessment of the property relative to buildings of a similar age and construction type that have been reasonably maintained.

Building inspection reports are generally provided within 24 hours of the inspection, with same-day reporting available by arrangement where required.

Perth property buyers may also choose to include a combined building and timber pest inspection as part of their property purchase conditions. This can provide important information about visible building defects and evidence of timber pest activity before settlement. Buyers should discuss appropriate inspection conditions with their settlement agent or conveyancer.

Further information and practical advice for Perth property buyers can be found on our Master Building Inspectors blog.

Building and timber pest inspections are available throughout the Perth metropolitan area from Monday to Saturday, subject to availability.

Inspection Process Explained

Our building inspection process is simple and transparent:

1. Booking – Select the inspection type required and provide the property details.
2. On-Site Assessment – An experienced WA registered builder carries out the inspection in accordance with the agreed scope.
3. Photo-Documented Report – A clear report is generally provided within 24 hours, with relevant Australian Standards and NCC requirements referenced where applicable.
4. Follow-Up Support – We are available to discuss the findings and answer questions about your report.

This process provides a clear understanding of the inspection findings and any significant issues identified at the property.

Frequently Asked Questions About Building Inspections Perth

Are your building inspection reports compliant with AS 4349.1?

Our residential pre-purchase building inspections are conducted in accordance with AS 4349.1–2007.

Other inspection types, including Practical Completion Inspections and construction stage inspections, are assessed against the relevant NCC requirements, approved plans and applicable Australian Standards. The WA Guide to Standards and Tolerances provides guidance on acceptable standards of workmanship and tolerances for residential building work in Western Australia.

How long does it take to receive a building inspection report?

Reports are generally delivered within 24 hours of the inspection and include photographs of significant defects and areas of concern.

Do you service all Perth suburbs?

Yes. Our building inspectors service the Perth metropolitan area, including Joondalup, Fremantle, Rockingham, Mandurah, Wanneroo, Ellenbrook and surrounding suburbs.

Can I combine a building inspection with a timber pest inspection?

Yes. We offer combined building and timber pest inspections, with the building inspection conducted in accordance with AS 4349.1 and the timber pest inspection conducted in accordance with AS 4349.3.

How much does a building inspection cost in Perth?

Building inspections in Perth start from around $480. The final cost depends on the property size, inspection type and whether a timber pest inspection is included.

See our Building Inspection Costs page for current pricing and further information.

Who is qualified to carry out a building inspection in Perth?

Western Australia does not currently have a specific government licensing category for pre-purchase building inspectors.

For this reason, it is important to check an inspector’s building qualifications, construction experience and insurance before engaging them.

At Master Building Inspectors, our inspections are carried out by experienced WA registered builders with extensive building and construction backgrounds.

Where can I find more information about AS 4349.1?

AS 4349.1–2007 is the Australian Standard covering pre-purchase inspections of residential buildings. Further information about the standard is available through Standards Australia.

Where can I find more building inspection advice?

Explore our latest building inspection articles for information about inspection costs, common defects, property purchasing and building inspections throughout Perth.

Technical content reviewed September 2026 by Master Building Inspectors – WA Registered Builders.