How long does a pest inspection take in Adelaide?

The short answer

A standard residential pest inspection in Adelaide takes 60 to 120 minutes on site. A combined building and pest inspection takes 90 to 150 minutes on site. The written report lands in your inbox 24 to 48 hours later.

Commercial inspections vary. A 500 m2 retail tenancy takes 2 to 3 hours. A 5,000 m2 industrial property takes a half day plus a day or two for the report.

If you are inside a 2-business-day cooling-off period, you have plenty of time for a residential inspection, provided you book it on the day you sign.

What affects the time on site

Five things change how long an inspector spends at the property.

Property size

The biggest factor. A 90 m2 unit is faster than a 350 m2 double-storey house. Roughly, an inspector spends 30 to 45 minutes per 100 m2 on a thorough timber pest inspection, plus additional time for external perimeter, roof void access, and subfloor crawls.

Number of storeys

A single-storey home has one roof void and one external perimeter to inspect. A double-storey home has two storeys of internal timbers, sometimes two roof voids, more external wall surface area, and often a more complex structural inspection if a combined report is being done.

Property age and complexity

A post-2010 brick veneer with a slab floor inspects faster than a 1920s character home with stone walls, a stepped subfloor, original timber stumps, and 100 years of timber additions to the structure. The character home is not "worse"; it just takes longer to inspect thoroughly.

Access

If the inspector can stand up in the roof void, walk through the subfloor, and reach every external wall without ladders, the inspection is faster. Restricted access (low subfloors that require crawling, sealed roof voids, fixed ceiling hatches) slows things down. The inspector may also need to write more disclaimers in the report for the areas they could not safely reach.

Outbuildings, decks, and grounds

A property with a large garden, three outbuildings (shed, garage, granny flat), a deck, a pool surround, and 30 m of timber retaining walls is a much bigger inspection than a flat 400 m2 block with just a house. Inspectors include the external scope (within 50 m of the structure) in the inspection time, and large grounds add 15 to 45 minutes.

What happens during the on-site inspection

A pest inspector's day on site follows a standard pattern. Knowing what they are doing helps you plan around them. You do not need to be present (most inspectors prefer you are not, so they can concentrate), but if you can be there for the last 15 minutes, the inspector will usually walk you through what they have found before the report is written.

External walk-around (15-30 minutes)

The inspector starts outside, walking the full perimeter of the building. They check:

• External wall conditions, weep holes, slab edges, garden beds
• External cladding (timber, fibro, brick) for damage and conducive conditions
• Fences, sleepers, retaining walls
• Outbuildings, sheds, decks
• Mature trees and stumps within 50 m
• Drainage and surface water management

Roof exterior (10-20 minutes)

A look from ground level at the roof tiles, sheets, flashings, ridges, and gutters. The inspector may use binoculars or a long ladder. Some inspectors use drones for steep or tile-fragile roofs.

Roof void (15-30 minutes)

The inspector goes inside the roof. They look at the framing, sarking, insulation, plumbing penetrations, water staining, and any signs of active pest activity. In double-storey homes there may be two roof void access points to check.

Subfloor (15-30 minutes, where accessible)

The inspector enters the subfloor crawl space (if there is one). They check bearers, joists, stumps, ventilation openings, ground moisture, and any signs of termite mudding or trails. On slab properties, there is no subfloor crawl, but they still check the slab edge and weep holes from outside.

Internal walk-through (15-30 minutes)

Room by room, the inspector checks skirtings, architraves, door frames, window reveals, wet area surrounds (shower, bath, kitchen, laundry), built-in cabinetry where accessible, and tap-tests any suspect timber for hollow sounds.

Sign-off walk and notes (10 minutes)

The inspector returns to areas they want to re-check, takes final photos, completes their on-site notes, and (if you are present) gives you a verbal summary of what they have found. The full written report comes later.

Report turnaround time

The written report typically lands in your inbox 24 to 48 hours after the inspection. The inspector spends 30 to 90 minutes writing, depending on the complexity of findings, the number of photos to integrate, and the depth of recommended further investigation.

• 24 hours: excellent. The inspector is efficient and has clear capacity.
• 48 hours: standard. The inspector is fitting writing time around their other inspections.
• 72 hours: slow. If you are inside a cooling-off period and the report has not landed by 72 hours, follow up. There may be a delay you can resolve.
• Over 5 days: unusual. Something is wrong. Follow up immediately.

Most reputable Adelaide inspectors hit 24 to 48 hours reliably. When you compare quotes, the promised turnaround is one of the things worth weighing alongside price.

When to book in the cooling-off period

The South Australian cooling-off period for residential property contracts is 2 clear business days from the date of signing. Weekends and public holidays do not count.

The practical timeline for a Friday signing:

• Friday afternoon (Day 0): Sign the contract. Submit the quote form.
• Friday evening or Saturday morning (Day 0-1): Inspector quotes come in.
• Monday (Day 2): Inspection on site.
• Tuesday morning (Day 3): Written report received.
• End of Tuesday (Day 4): Cooling-off ends. Decision made.

That gives you the inspector roughly 24 hours to complete the inspection and write the report. Most can hit it. If you sign on a Monday or Tuesday, the timeline is tighter because the weekend cuts into the window. Plan accordingly.

For auction purchases, there is no cooling-off period. Book the inspection before you bid. Inspectors call this a "pre-auction" or "buyer-ready" inspection. It costs the same as a pre-purchase inspection.

Commercial inspections

Commercial inspections take longer because the properties are larger, the access is more variable, and the reports often integrate with broader due diligence.

Property type	Time on site	Report turnaround
Retail tenancy under 150 m2	1 - 2 hours	2 - 3 days
Office tenancy 200 - 500 m2	2 - 3 hours	2 - 4 days
Single-tenant warehouse under 2,000 m2	3 - 5 hours	3 - 5 days
Multi-tenant complex or large industrial	Half day +	5 - 10 days
Hospitality (cafe, restaurant)	2 - 3 hours	2 - 4 days

After-hours inspections are common for retail and office properties so trading is not disrupted. The premium for after-hours is usually small (under 10% of the base quote).

Scheduling against settlement

Beyond cooling-off, the other key timeline is settlement. Most Adelaide residential contracts settle 30 to 60 days from signing. Some are shorter (cash purchases) or longer (subject to finance, building, conditions).

Schedule your pest inspection inside the cooling-off period, not closer to settlement. The cooling-off period is when you have contractual options. Once that has lapsed, your options narrow significantly. If a pest report after settlement reveals a serious issue, you have generally already inherited it.

If you are commissioning a vendor pest inspection (selling), book it 1 to 2 weeks before listing. That gives you time to consider findings, remediate if needed, or price the property to reflect the inspection report.

Bottom line

A residential pest inspection takes 1 to 2 hours on site. A combined building and pest takes 90 minutes to 2.5 hours. The report arrives 24 to 48 hours later. Inside a 2-day cooling-off period you have plenty of time, provided you book on the day you sign.

If your property is older, larger, or has tricky access, expect the longer end of those ranges. If it is a slab-on-ground brick veneer in a flat suburb, expect the shorter end. Either way, get three quotes and compare.