Arrange water sampling and testing
- Scope
- Sampling and analysis through an independent HOKLAS-accredited laboratory, within the agreed test scope.
- Before you enquire
- Water source, purpose, required parameters and sampling access.
- Quotation and scheduling
- The quotation identifies agreed work, tests and records. Price and scheduling depend on the system, access and any required downtime.
- Next step
- We reply within one working day, then confirm the scope and whether a site assessment is needed.
Testing is what turns “the water is probably fine” into a document that proves it. Gotech samples on site and analyses in the laboratory: drinking water, pool water, cooling water and Legionella. You get a formal, dated report suitable for a compliance file or a tender submission — which matters, because in a dispute the report is the evidence, not your recollection.
You cannot see Legionella. You cannot see most of what makes water safe or unsafe. Every meaningful judgement about a water system is made from a measurement, which means the quality of the measurement is the quality of the judgement.
It also means how the sample is taken matters as much as what the laboratory does with it. A sample drawn from the wrong point, at the wrong time, or handled badly on the way to the lab produces a number that is precisely wrong — and a precisely wrong number is more dangerous than no number, because people act on it.
What we test
- Drinking (potable) water quality
- Swimming pool and spa water (see pool licence requirements)
- Cooling water — the full treatment picture, not just one parameter
- Legionella counts
- Before-and-after results for cleaning and disinfection
- Formal, dated reports for your records
What happens on site
- Agree the scope. What is being tested, from where, and why — the question decides the sampling plan.
- Sample correctly. Right point, right method, right handling. This is where results are won or lost.
- Analyse in the laboratory.
- Report formally, dated, with the result in context rather than as a bare number.
- Act. If a result is out of range we tell you what it means and what to do — a number without an interpretation is not much use.
Why it matters
The value of a result is decided before the sample reaches the lab: where it was taken, when, and how it was handled. That is why sampling is done by our own technicians rather than left to the building.
What it costs to get this wrong
Testing is the cheapest line item on this site and the one that makes every other line defensible. Without it you are running a programme on faith and you have nothing to show a regulator, a tender panel or a lawyer. With it, you have a dated evidence trail. The asymmetry is stark: the test costs a little, and not having it costs you the argument.
Common questions
How long do results take?
It depends on the test — Legionella requires a culture period, so it is not an instant answer. We will tell you the turnaround when we agree the scope, and if a situation is urgent we will say so rather than let you wait on a result that will arrive too late to matter.
Can you test water for a system you do not treat?
Yes. Testing and sampling are offered independently of the treatment relationship — including as part of an independent audit of another contractor's work.
What do we get?
A formal, dated report suitable for a compliance file or tender submission, and an interpretation — what the number means for your system and what, if anything, to do about it.
Is the laboratory accredited?
Yes. Samples are analysed by a HOKLAS-accredited independent laboratory — one of Hong Kong’s largest — and every result comes back to you as a formal dated certificate suitable for a compliance file or a tender submission.
Scope and records
The agreed quotation defines the work, analysis, deliverables and schedule.
View a blank service-record templateNeed water tested?
Tell us the system and the question, and we will sample, test and report.