Construction, factory and warehouse environments are hard on equipment. Regular inspection and testing of portable appliances reduces electric shock and fire risk, keeps operations moving, and supports your duties under the Electricity at Work Regulations 1989. For sector-specific guidance and booking, see: PAT testing for construction, factories and warehouses.
PAT testing helps prevent:
Tell us about 110V supplies, industrial connectors, three-phase equipment and hard-wired machinery before booking. The test method, access and isolation requirements need to be agreed. Industrial/commando testing carries additional charges, including within the £85 standard package; it is not simply substituted for the standard appliance rate.
HSE publishes suggested initial intervals that distinguish 110V from 230V equipment. Its construction guidance calls for particularly frequent checks of mains-voltage tools. Use the relevant HSE table with your site risk assessment and manufacturer instructions, then review the interval against actual defects.
Do not rely on a monthly RCD button check for construction use: HSE advises daily button checks for RCDs used with 230V portable tools on site. A button check and an instrument test serve different purposes.
Further guidance: HSE electrical systems on construction sites.
Further guidance: HSE equipment checks and suggested initial intervals.
| Fault found | Likely hazard prevented |
|---|---|
| Crushed or cut flex, exposed copper | Electric shock, fire from overheating |
| Loose/cracked plugs, damaged strain relief | Shock from exposed live parts, arcing |
| Incorrect or oversized fuse | Fire due to fault current not clearing |
| Failed earth continuity on Class I items | Shock if a fault makes the casing live |
| Damaged or overloaded extension reels | Overheating and fire risk |
| Liquid/dust ingress into tools | Insulation failure, shock, short circuit |
| Counterfeit or poor-quality chargers | Overheating and fire |
| RCDs failing trip-time checks | Severe shock risk in fault conditions |
Need tailored advice? Visit our dedicated page: PAT testing for construction, factories and warehouses.
AiO Pro PAT Testing is based in Christchurch and serves businesses across the South and South West. Send the site postcode and access details so we can confirm attendance. London and sites inside the M25 need a separately confirmed attendance arrangement.
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No. There is no fixed legal interval in the UK. You must maintain the equipment so it is safe. In higher‑risk environments like construction and heavy industry, more frequent inspection and testing are usually justified by risk.
Use a schedule appropriate to the supply voltage and equipment, with separate user checks, formal inspections and electrical tests. Start with the HSE construction guidance linked above and review it against your site conditions and defect history.
Include plug-in chargers when agreeing the inspection scope. Forklifts, traction-battery systems and hard-wired chargers may need specialist maintenance and testing; a standard PAT visit does not certify the whole machine or charging installation.
Yes. We plan around your operations, group equipment by area, and offer out‑of‑hours visits to minimise downtime.
We label and quarantine the item, record the failure and cause, and, where possible, fix minor issues (such as replacing an incorrect fuse or re‑terminating a plug) with your approval.
View our example report and appliance labels before you book.