CHECKSURE — INSPECTION EQUIPMENT AND METHODS

Inspection Equipment and Methods

Version 1.8 | Last updated: 28 September 2026

Equipment used during an inspection

CheckSure inspections combine a methodical visual assessment with appropriate professional inspection equipment, measuring devices and practical aids. Equipment is selected to suit the property, inspection type, feature being assessed and conditions encountered, helping the inspector investigate accessible elements and record clear, useful evidence.

Our equipment is maintained and used within controlled inspection methods. It supports the inspector’s professional judgement rather than replacing it. Conventional hand tools are used alongside digital equipment where they provide the most appropriate and straightforward method for the inspection task. The particular equipment used depends on the inspection scope, features present, safe access and site conditions. An equivalent suitable instrument may be substituted without changing the applicable inspection scope, method or reporting limitations.

Levels, angles and dimensions

Depending on the inspection scope and the feature being assessed, CheckSure may use tape measures, vial spirit levels, digital spirit levels, angle-finding devices, laser measures and self-levelling cross-line lasers. These instruments support suitable checks of accessible dimensions, level, plumb, alignment and angles.

Stabila Tech 196 DL digital spirit levels are available in 60 cm and 183 cm lengths. The manufacturer states an accuracy of ±0.05° at 0° and 90°, and ±0.10° between 1° and 89°.

Preciva digital square and angle-finding rules support suitable accessible angle checks. The digital square has a manufacturer-stated accuracy of 0.3° and a resolution of 0.1°. The digital angle finder has a manufacturer-stated accuracy of 0.3° and a resolution of 0.05°.

The Bosch GLM 50 C laser measure has a manufacturer-stated accuracy of ±1.5 mm and supports suitable accessible dimensional checks.

The Stanley CUBIX STHT77340 self-levelling cross-line laser provides a visible horizontal or vertical reference. The manufacturer states a working range of up to 8–12 metres, depending on lighting conditions, an accuracy of ±0.8 mm per metre and a self-levelling range of ±4°.

Where relevant during a Pre-Completion Inspection, this equipment supports assessment against the applicable checklist. Its use does not change or extend the scope of that checklist.

Indicative surface-temperature readings

An infrared thermometer may be used to take an indicative surface-temperature reading at an accessible point. The instrument has a manufacturer-stated measurement range of −50°C to 380°C, an accuracy of ±2% or ±2°C, and a resolution of 0.1°C.

Electrical socket indications

Where included within the applicable inspection scope, a plug-in socket tester may be used at an accessible standard socket outlet. Its indicator lights can identify a normal connection pattern and certain apparent wiring conditions, including a missing earth, missing neutral and some reversed-conductor arrangements.

The check is limited to the indicator pattern displayed by the tester. It does not include operation of the tester’s RCD test function, detect every possible wiring fault or replace inspection and testing by a qualified electrician.

Door and fire-door gap measurements

Where a door or fire-door assembly is within the applicable inspection scope, CheckSure may use purpose-made gap gauges to support consistent measurement of accessible clearances between the door leaf and frame.

A tapered metal gauge provides readings across a 1–15 mm range, with a stated accuracy of 0.5 mm. A separate reference gauge provides a quick visual indication of gaps within its marked range. Where a reading is close to a relevant boundary, the measured result and applicable door information are considered rather than relying on the reference gauge alone.

These checks record accessible door gaps and visible conditions at the time of inspection. They do not establish the fire rating or certification of the complete doorset and are not a substitute for a specialist fire-door inspection.

Inspections with supplementary checks

Some equipment-assisted checks require additional explanation because of their method, interpretation or limitations. The supplementary ventilation, thermal-imaging, water and network checks described below apply only to CheckSure New-home Snagging and End-of-Defects inspections. They are not standard Pre-Completion Inspection or Re-snag checks.

Not every supplementary check will be appropriate or possible during every eligible inspection. Use depends on the service purchased, the installations present, safe access, operating conditions and the circumstances encountered at the property.

Extract ventilation

CheckSure uses a Testo 410i vane anemometer, serial number 47700940, to take an indicative reading at an accessible grille serving an in-scope local intermittent wall or ceiling fan. The reading is compared with the controlled room reference used by CheckSure. Cooker hoods, dMEV, central MEV, MVHR and other continuous or whole-dwelling systems are outside this limited check.

The grille method is affected by grille geometry, turbulence, probe position, fan setting, duct resistance and site conditions. It is not equivalent to formal Part F commissioning with suitable calibrated equipment and does not establish Building Regulations compliance.

Manufacturer test certificate

The Testo manufacturer test protocol for the Testo 410i, serial number 47700940, is dated 20 March 2026 and is controlled as OPS-02-EVD-001. It records comparison readings for velocity and temperature. It supports manufacturing traceability only and is not a current calibration certificate or an accredited UKAS or DAkkS certificate for the complete measurement system.

View the Testo 410i manufacturer test protocol (PDF, 2 pages).

Radiator and underfloor-heating thermal imaging

Accessible operating radiators and representative accessible floor areas served by underfloor heating may be viewed using a Thermal Master P1 thermal camera to observe broad patterns of apparent surface warming. The image is qualitative and point-in-time. It does not measure heat output, calculate heat loss, verify sizing or coverage, trace floor loops, assess heat-pump efficiency, diagnose an uneven pattern or guarantee that the room can be heated adequately. No manufacturer sales-page link is used.

Water pressure and tap flow

A suitable accessible outside tap may be used for a limited static-pressure screening check with an analogue pressure gauge. Selected internal taps may be checked with an Arctic Hayes U-Flow gauge. These are point-in-time screening checks, not water-company boundary testing, plumbing commissioning, simultaneous-demand testing or confirmation of appliance suitability. Retail product links are not used.

Network sockets

Accessible developer-installed passive RJ45 cable runs may be checked with a VCELINK GJ468 basic cable tester and known-good patch leads. The check is limited to basic continuity and wire-map order. It does not certify cable category, bandwidth, network speed, PoE capability or formal cabling-standard compliance. Connections already in use are not normally disconnected.

What the supplementary checks can establish

The results record what was observed using the approved limited method at the time of inspection. A satisfactory indication is not a statutory, regulatory, warranty or specialist certification. Where a result is below a controlled screening level, appears uneven, indicates a wiring anomaly or cannot be assessed reliably, the report recommends the appropriate commissioning record or competent specialist.