Toxicology Test Prices

A toxicology test price in New Zealand reflects three things: the sampling that happens at the property, the laboratory analysis of those samples, and the report you receive. EnviroCheck's assessments start from $249 + GST for a Baseline Screening Assessment. Beyond that, the price tracks the level of certainty your decision requires — a screening check is priced differently from the discrete, room-by-room analysis a tribunal or insurance matter needs. This page sets out the levels, what each one includes, and what moves the final figure. For what the resulting document contains, see our meth toxicology reports guide.

Toxicology Test Prices by Assessment Level

For a full description of each level, see our meth testing services page. If you are weighing screening against discrete sampling, our composite meth testing guide explains exactly what changes between the two.

What the Price Includes

• On-site sampling by a qualified EnviroCheck assessor, using NZS 8510:2017 methodology and documented sample locations.
• IANZ-accredited laboratory analysis of every sample collected, reporting concentrations in µg/100 cm².
• The written toxicology report — included with every assessment, not charged separately. It records what was tested, where, and what the laboratory found.
• Independent interpretation of the result against the applicable threshold, so you know what the number means for your situation.

What Affects the Price of a Toxicology Test

• Assessment level — composite screening is less expensive than discrete, individually analysed samples.
• Property size — larger properties need more samples to achieve meaningful coverage.
• Rooms and surfaces sampled — more sample locations means more laboratory work.
• Location and travel — rural and remote properties may carry a travel component, confirmed before booking.
• Purpose of the test — a clearance re-test after decontamination targets specific surfaces and may differ from a standard assessment in scope.

Toxicology Test Prices Against the Cost of Contamination

Methamphetamine decontamination in New Zealand commonly runs from $15,000 to $30,000, and can be considerably higher where contamination is widespread — before any consideration of lost rent, remediation downtime, or a failed settlement. Against that, a screening assessment from $249 + GST is a small outlay for factual information at the point a decision is being made. For what remediation involves, see our decontamination guide.

Cheaper Options and What They Cannot Do

DIY test kits, and "free" screening offers that exist to sell decontamination work, both have the same limitation: the result is not independent laboratory evidence. A DIY kit does not follow NZS 8510:2017 methodology or give a quantified laboratory concentration. A testing company that also performs remediation has a commercial interest in the result it reports. EnviroCheck tests and advises only — we do not remediate — so the price you pay buys an assessment that answers to your decision. Our DIY vs laboratory comparison sets out the difference in detail.

Getting an Exact Price for Your Property

There is no single national price for a toxicology test, because no two properties are the same size or need the same level of analysis. To get a figure you can rely on, tell us:

• The property address and approximate size, including the number of bedrooms.
• The purpose of the test — pre-tenancy baseline, pre-purchase, end-of-tenancy, tribunal evidence, insurance claim, or post-remediation clearance.
• Whether the property is a rental, owner-occupied, short-stay, or commercial premises.
• Your timeframe, particularly for pre-settlement or end-of-tenancy deadlines.

Call 0800 564 564 or request a tailored quote and EnviroCheck will confirm the assessment level, scope and price before anything is booked.