New Construction Inspections

✅ Licensed Builders – All inspectors are registered with the WA Building Commission.

✅ Fully Insured – Public Liability & Professional Indemnity cover underwritten by Lloyds of London.

✅ Trade Backgrounds – Inspectors with hands-on residential and commercial construction experience.

✅ Photo-Documented Reports – Detailed findings with NCC and Australian Standard references.

✅ Fast Turnaround – Reports delivered within 24 hours of inspection.

✅ Local Experts – Serving Perth and all surrounding suburbs.

Why Stage Inspections Are Essential

Independent construction stage inspections give homeowners peace of mind. Identifying issues early prevents costly rectifications later. Our inspectors reference the NCC, Guide to Standards and Tolerances, and AS 4349.1 in every report, ensuring accuracy and compliance.

Benefits of staged inspections include:

• Detecting defects when they are easiest to fix.

• Ensuring quality workmanship before milestone payments.

• Protecting your investment throughout the build.

• Reducing stress by having a licensed builder on your side.

Regulated Building Standards – New Construction Inspections in Perth

The regulated standards for building a new home in Western Australia are for the most part covered within the National Construction Code (Building Code of Australia), which all builders are required to comply with.

Hierarchy of Building Standards in WA

There is a hierarchy for building standards, which starts with the Act of Parliament, regulations under the Act, the National Construction Code, then the Australian Standards and additional documentation referenced by the B.C.A.

Guide to Standards & Tolerances in New Builds

During new construction inspections, the Guide to Standards and Tolerances 2018 is commonly referenced for workmanship issues that fall outside of the Australian Standards requirements.

It is important to note though, that this is only a guide and not a regulated standard. Most builders however, recognise this advisory document and rectify the defective workmanship itemised in each report to a suitable standard.

Where there is any disagreement over defective work, the BCA or building contract takes precedence.

How Our Reports Differ from Competitors

Our new construction inspection reports differ from competitors. Each defect is referred back to the applicable Building Code or Australian Standard requirement, with the specific clause number (e.g. AS 1684 clause 7.2.4) listed for clarity.
Each building element is assessed in detail, and defects are noted where tolerances exceed the allowable minimum or maximum.

Each building element is assessed to note any apparent deviations and defected if found to exceed the allowable minimum or maximum tolerances.

Building Inspections Perth.  Given the Western Australian new build housing industry is largely self-regulated, the builders will generally rectify these issues without question, once they receive the new construction inspection report.

Defects categorised as Sub-standard workmanship in each report, includes all works undertaken by contractors or sub-contractors employed by the builder.

Blemishes & Variations in New Homes

Defective finishes such as paintwork and render are another common complaint. When viewing blemishes and variations, they must be viewed and/or visible from a normal viewing position during new construction inspections.

Normal Viewing Positions Explained

A normal viewing position is defined as a distance of 1.5 m or greater and 600 mm for fixtures and appliances.

Light Conditions for Inspections

The surface inspected must have diffused light that is not parallel or glancing. This is classified as non-critical light.

It is highly advised that after final handover of the build, the owner performs regular maintenance to ensure the structure continues to perform as intended. By adopting simple landscaping techniques, owners can also reduce the risk of damage and cracking to the buildings structure.

Typically, maintenance plans include the following items to be considered: blocked gutters, faulty sprinkler systems, overflows from air-conditioners, proximity of trees to house, resealing of shower recesses, downpipes unconnected to stormwater and paving sloping towards building.

A video regarding New Construction Building Inspections can be found via the Master Building Inspectors Youtube channel.

Stages We Inspect

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Inspections in Perth start from just $480 per stage with fixed bundled rates available. Our staged new construction inspections cover every critical phase of the building process, from slab preparation to final handover. Each inspection is carried out by a licensed builder and includes a photo-documented report with references to the National Construction Code and Australian Standards. By checking every stage carefully, we give Perth homeowners confidence that their new build is progressing correctly, meets compliance requirements, and avoids costly defects later. If you need a full assessment beyond stage checks, our Perth building inspection services offer detailed reporting.

Ready to protect your new build? Book your stage inspections now and gain confidence at every milestone.

Slab Stage Inspections in Perth

Q: What is checked during a slab stage inspection in Perth?

A: We inspect the footings and slab before or after concrete is poured. This includes checking site preparation, compaction, reinforcement placement, moisture membranes, drainage provisions, and slab levels. Identifying slab issues early prevents costly structural problems later in the build.

Benefit: By catching slab defects early, you avoid foundation issues that can cost thousands to repair once the home is completed.

Plate Height / Brickwork Inspections

Q: What do inspectors look for during a brickwork inspection in Perth?

A: At plate height, we examine brickwork or framed walls to ensure they are level, plumb, and tied correctly. This includes mortar, brick ties, lintels, load-bearing walls, and frame connections. Poor workmanship at this stage can affect the stability of the entire structure.
Benefit: Ensures the walls and frame are structurally sound, preventing cracks and structural movement in the future.

Roof Frame Staged Inspection

Q: What is checked during a roof frame inspection in Perth?

A:  The roof structure is checked for compliance with AS 1684. We assess trusses, rafters, beams, tie-downs, bracing, and fixings. Non-compliant roof frames can lead to major safety issues if not addressed before roofing materials are installed.
Benefit: A compliant roof frame provides long-term safety and durability, protecting your home against storms and structural failure.

Lockup Inspection

Q: What is included in a lockup stage inspection in Perth?

A: Once the home reaches lockup stage, we check external windows and doors, flashing, sarking, insulation, and moisture barriers. Ensuring correct installation at this stage protects against future water ingress and energy efficiency problems.
Benefit: Proper lockup inspections help prevent water leaks and ensure your home is energy-efficient from day one.

Waterproofing Inspection

Q: Why is a waterproofing inspection important in Perth homes?

A: We assess wet areas such as bathrooms, laundries, and balconies for correct waterproofing installation in line with AS 3740. Early detection of waterproofing issues prevents costly leaks and repairs down the track.
Benefit: Correct waterproofing reduces the risk of mould, water damage, and long-term structural issues.

Practical Completion (PCI) Inspections

Q: What happens during a Practical Completion Inspection in Perth?

A: At handover, we conduct a full inspection of finishes, fixtures, fittings, and compliance items. All incomplete work, cosmetic defects, and safety issues are documented in a photo-detailed report so they can be rectified by the builder before you move in.
Benefit: Ensures your builder fixes all issues before handover, giving you confidence and peace of mind before moving into your new home. Learn more about our Practical Completion Inspections.

The staged inspections are designed to coincide with a client's milestone payments. This gives the client confidence that each stage has been built correctly and to the appropriate building standards.

Independent Stage Inspections for Perth Homeowners

The main benefit with these new construction inspections, is that problems that may arise are easily rectified prior to the next construction stage commencing. Once the build reaches completion, it can be very difficult to rectify structural items. Many clients have property leases that are expiring and require to move into their new house ASAP.  It can be a very stressful time!

Master Building Inspectors provides clients with support, guidance & independent advice during the home building process. Inspections are conducted at the main milestone stages, to provide peace of mind with having an experienced inspector assess the build.

Clients are instilled with confidence that the build is meeting National Construction Code, Australian Standards and Guide to Standards & Tolerances requirements. Build times do vary depending upon the complexity and can take anywhere from 7 months to several years to complete.

Compliance & Reporting

All reports are photo-documented, AS 4349.1 compliant, and delivered within 24 hours. We reference specific clauses from:

• National Construction Code (NCC)

• Australian Standards (AS 1684, AS 3700, AS 3740)

• Guide to Standards and Tolerances 2019

People Also Ask: New Construction Inspections in Perth

Q: How much does a new construction inspection cost in Perth?

A: Prices for new construction inspections in Perth start from around $480 per stage. The final cost depends on the number of stages inspected and the size of the build.

Q: Do I need inspections during each stage of my build?

A: Yes. Stage inspections allow issues to be found and fixed early, before they become expensive to repair. They also ensure your builder delivers work to the correct standard.

Q: What happens if defects are found during a construction inspection?

A: If defects are identified, we provide a detailed, photo-documented report that references NCC and Australian Standards. This gives your builder clear instructions for rectification.

Q: Can I book a practical completion inspection only?

A: Yes. Many clients choose a Practical Completion Inspection (PCI) before handover. However, we recommend stage inspections throughout the build for complete protection.

Perth Case Study - New Construction Inspection

In 2025, during a roof frame inspection in Ellenbrook, we uncovered poor tie-down installation that did not comply with AS 1684. Our report ensured the defect was rectified before roofing commenced, saving the homeowner thousands in future repairs.

Service Areas Across Perth

We provide new construction inspections across Perth, including Joondalup, Fremantle, Rockingham, Mandurah, Ellenbrook, Wanneroo, and Canning Vale. No matter where you are building, our inspectors can help.

⭐⭐⭐⭐⭐ “In my Henderson build, their inspection caught a framing defect just in time—the builder sorted it immediately!” – Stephanie, Henderson

Related Services

Many clients also request:

• Dilapidation Reports for nearby construction projects.

• Pre-Purchase Building Inspections before committing to a property.

Perth’s Building Boom– Why Independent Inspections Matter

The new construction housing industry in Perth is currently facing a building boom. Residential building activity has increased significantly in the past 9-12 months primarily due to low interest rates and federal & State Government grants.

Earthworks must occur within 6 months of contract signing for the WA grant and 12 months for the federal grant.

Consumers should expect significant delays due to material & labour shortages.

Skilled labour, particularly trades such as concreter’s & bricklayers are also in short supply.

Given it has been numerous years since the last housing boom, and coming from a sustained downturn in the market to a boom seemingly overnight, this has created challenges for all builders.

Unfortunately, due to this massive flood of demand, many untested tradesmen are now re-entering the market, with their skill set questionable.

Don’t risk hidden defects in your new build. Book a new construction inspection in Perth today with Master Building Inspectors and move forward with confidence.

About Your Master Building Inspector

The building inspection industry in Perth is currently unregulated, which means anyone can call themselves an inspector. That’s why choosing a qualified, experienced professional is so important.

Unlike many operators who claim to be “registered inspectors,” all of our inspectors are licensed builders, registered with the WA Building Commission. Each inspector has hands-on construction experience, not just management or accounting backgrounds.

Why Choose Our Inspectors?

• Qualified, Registered Builders – All inspectors hold official WA Building Commission registration.

• Fully Insured – Public Liability & Professional Indemnity insurance underwritten by Lloyds of London.

• Trade Backgrounds – Years of experience in residential and commercial construction.

• Specialist Training – Each inspector has completed extensive training in reporting and inspection processes.

When you book with Master Building Inspectors, you’re guaranteed a thorough, professional inspection from a team with real building expertise.

Book Your New Construction Inspection in Perth

👉 Protect your investment with a trusted building inspector in Perth — book your inspection today. See how our PCI inspection Perth process works before handover.