What Equipment Does a Damp Surveyor Need? Starter Kit & Costs (2026)

For Professionals · Starter Guide · 2026

Every new surveyor asks the same two questions: what kit do I actually need, and what does it cost? Here’s the honest list — what earns its place on day one, what waits until the work justifies it, and the expensive purchases beginners regret. One thing upfront: as an independent standards body we take no money from manufacturers, so there are no brand plugs here — just categories, features and realistic price bands.

The day-one kit (roughly £300–£600 all in)

A dual-mode moisture meter — the core instrument. You want both pin mode (surface readings via conductance) and non-invasive search mode (scanning below the surface without marking walls). Buy on features: dual-mode operation, readings you can photograph or log, solid build, and calibration you can check. As a guide, a professional dual-mode meter runs roughly £100–£300, and it’s the one item where buying cheap costs you credibility on site.

A thermo-hygrometer. Air temperature and relative humidity are half of every condensation investigation — you can’t assess condensation risk without them, and condensation is the most common (and most misdiagnosed) problem you’ll meet. Roughly £30–£100 for a reliable unit; models that calculate dew point save you doing it manually.

The unglamorous essentials. A strong torch (damp lives in dark corners), a tape or laser measure for floor plans and reading locations, a camera — a modern phone is genuinely fine and keeps photos timestamped — basic inspection tools (screwdriver, probe, mirror), and PPE: gloves, FFP3 masks for mould-affected rooms, knee pads, overshoes. Call it £100–£200 for the lot done properly. None of it impresses anyone; all of it gets used on every survey.

Worth adding early (as the work funds it)

A borescope (roughly £50–£200) for looking inside cavities, under floors and behind linings without opening anything up — it pays for itself the first time it settles a cavity-wall question. Data loggers (roughly £50–£150 each) for monitoring temperature and humidity over days rather than minutes — the difference between guessing at a condensation pattern and evidencing one, and exactly the kind of documented evidence that landlord and housing-provider work increasingly demands. And a decent ladder plus a moisture-resistant kit bag, because gutters, roof junctions and external ground levels are where penetrating damp stories usually start.

Specialist kit — later, with training

Thermal imaging is the one everyone wants first and needs last. It’s genuinely powerful — cold bridging, missing insulation, moisture patterns invisible to the eye — but it’s an interpretation-heavy tool: untrained, it produces confident wrong conclusions, which is worse than no tool at all. Proper cameras run roughly £300–£1,500+ (phone attachments offer a cheaper entry), and it belongs in your kit once the fundamentals are solid and you’ve done the training to interpret it. Carbide testing kit (several hundred pounds) sits in the same category — the definitive method for quantifying moisture content in masonry, needed for a minority of investigations, added when your casework justifies it.

And the kit nobody puts on these lists: your reporting and trust infrastructure. The survey report is the product clients pay for, and Federation of Damp membership includes the branded survey report builder, the vetted-member badge and your listing on the public register — the professional toolkit that turns readings into a business. Budget for it the way you budget for the meter.

If you’re costing out the whole journey: training prices are in our transparent training cost guide, and what the career pays back is in the salary guide — a day-one kit is typically recovered within the first two or three paid surveys.

Kit questions, answered