07597 452886Testmasterinfo@gmail.com 24/7 online enquiries AboutServices Areas ReviewsOur WorkContact07597 452886Request a Free Quote Home/Services/PAT Testing # PAT TestingFor Businesses & LandlordsAcross London & High Wycombe Every portable appliance on your site tested, labelled and logged in a digital register you can hand straight to an insurer, managing agent or main contractor, usually issued within one day of payment. Request a Free QuoteCall 07597 452886 5-star rated on Google · £5m public liability · Certificates issued digitally ## Get a fixed price for pat testing Send us the site details and we will come back with a quote-led fixed price. No published rates, no obligation. £5,000,000 Public liability insurance £2,500,000 Professional indemnity cover Constructionline Bronze member, working towards Gold in 2026 RAMS issued Risk assessments and method statements on request Digital certificates Issued within one day of payment Service overview ## What pat testing involves, and who needs it Portable appliance testing is the formal inspection and electrical testing of any equipment that plugs into a socket: laptops, monitors, chargers, kettles, heaters, fridges, power tools, IT racks, extension leads and everything else that quietly accumulates in a working building. Each item is visually inspected, electrically tested where appropriate, labelled with its result and recorded against a unique asset ID. The output is not the sticker. The output is the register: a complete, dated record showing what was tested, what passed, what failed and what was done about it. That register is the evidence you produce when someone asks whether your electrical equipment is safe, and it is the reason PAT testing is treated as routine housekeeping by well-run facilities teams and as an emergency by everyone else. Test Master UK carries out PAT testing across all London boroughs, High Wycombe and the surrounding areas. Our engineers are mobile and travel directly to your site, so testing happens around your occupants rather than shutting them down. ### Why professional delivery matters - A competent tester distinguishes between a Class I item needing an earth continuity and insulation resistance test and a Class II item that does not; getting this wrong produces a register full of meaningless results. - Visual inspection catches most real faults: damaged flex, scorched pins, incorrect fuse ratings, badly repaired joints and daisy-chained extension leads. Test equipment alone will not flag a badly routed cable under a desk leg. - Test intervals are risk based, not fixed by law. Setting them correctly means you are neither under-testing high-risk tools nor wasting budget re-testing static office equipment every few months. - The register has to survive scrutiny. Asset IDs, locations, test dates, readings and retest dates need to be consistent across years so trends and repeat failures are visible. ### Who this is for - Commercial offices and workplaces with desk equipment, kitchens and server rooms - Facilities management companies covering multiple client buildings - Property and managing agents responsible for communal and let equipment - Landlords and HMO operators supplying appliances with a tenancy - Main contractors and construction companies with 110v site tools - Schools, care homes, retail units and hospitality venues ### When it is needed - Before a new tenancy starts or at change of tenant - Ahead of an insurance renewal or a broker's evidence request - When a main contractor or principal contractor asks for tool certification before site access - On the anniversary of your last test, or shorter for high-use environments - After equipment has been moved, hired in, repaired or bought second hand - When an audit, tender or pre-qualification questionnaire asks for current records The cost of leaving it ## What untested appliances actually cost you Electrical faults in portable equipment cause fires and shocks. A frayed kettle lead in a staff kitchen, a scorched extension block behind a desk bank, a site transformer with a cracked casing; these are the failures that turn into an incident, an injury and an investigation. The financial exposure arrives afterwards. Insurers ask for evidence that the equipment involved was maintained and tested; without records, claims are contested or rejected outright. Enforcement action for failing to maintain electrical equipment in a safe condition brings fines and legal costs that dwarf the price of testing. Then there is the commercial cost that nobody puts on a risk register: site access refused because tool certification is out of date, a tender scored down because the compliance file is incomplete, a tenancy held up because the appliance certificate expired, a managing agent chasing you weekly for a document that takes an afternoon to produce. ### Common mistakes we are called in to fix - Assuming new equipment does not need testing; it needs recording, and it still fails visual inspection when it is damaged in transit or misused. - Testing only the obvious kitchen items and ignoring extension leads, which are one of the most common failure points in any office. - Letting each department buy its own heaters and chargers with nobody adding them to the register. - Keeping the certificate in one person's inbox, so the evidence disappears when they leave. - Booking testing the week a deadline lands, then discovering failures with no time to arrange remedials.Call 07597 452886 Our process ## How we deliver pat testing Every job follows the same sequence, co-ordinated by a dedicated Operations Manager so attendance fits around your occupants and trading hours. - 01 ### Enquiry and free quote Tell us the site, the rough appliance count and the type of environment. Pricing is quote-led and fixed before we attend; there are no published rates because a 40-item office and a 400-item multi-floor building are not the same job. - 02 ### Scheduling around your operation A dedicated Operations Manager co-ordinates the visit, including out-of-hours or phased attendance where testing during trading hours would disrupt occupants. - 03 ### Visual inspection Each item is checked for damaged flex, cracked casings, loose or scorched pins, incorrect fuse rating, poor cable management and unsafe repairs. Most genuine faults are found here. - 04 ### Electrical testing Class-appropriate tests are carried out: earth continuity, insulation resistance, polarity and load or leakage checks as relevant to each appliance, with readings recorded against the asset. - 05 ### Labelling and minor repairs Every item is labelled with its result and retest date. Minor remedial work such as a fuse change, a plug rewire or a cord grip correction can be carried out on the spot where practical and agreed with you on site. - 06 ### Digital certificate and register You receive your digital report and asset register, typically within one day of payment, with failures clearly listed alongside the remedial action required. RAMS are issued on request. What you get ## Outcomes, not promises ### Documented, transferable evidence A digital register you can forward to an insurer, agent, contractor or auditor the moment it is requested, no scanning, no hunting through drawers. ### Genuine reduction in fire and shock risk Damaged leads, overloaded extension blocks and incorrectly fused plugs are removed from circulation before they cause an incident. ### Minimal disruption Mobile engineers work desk by desk and room by room around your occupants; phased and out-of-hours attendance is available for live environments. ### Fewer stalled contracts Current tool and equipment certification keeps site access, tenancies and tender submissions moving instead of waiting on paperwork. ### Cost control through risk-based intervals Testing frequency is matched to environment and use, so budget goes to the equipment that actually needs it. ### One point of contact for portfolios Multi-site clients get co-ordinated scheduling across every building rather than nine separate bookings. ## What is PAT testing? PAT testing (portable appliance testing) is the inspection and electrical testing of every item in your building that plugs into a socket. Each appliance is visually checked, electrically tested where its construction class requires it, labelled with the result and recorded against a unique asset ID in your register. It exists to answer one question with evidence rather than opinion: is the electrical equipment in this building safe to use today? A labelled appliance and a dated register prove that someone competent checked, what they found and when the item is due again. - Visual inspection of flex, plug, casing, fuse rating and cable routing - Class-appropriate electrical tests with readings recorded per asset - Pass/fail label with retest date on every item - Digital asset register issued within one day of payment ## The electrical safety mistakes we find most often Almost every failure we log comes from the same short list. None of them are exotic; they are the everyday habits that build up in a working building between one test and the next. Booking testing on a sensible cycle removes all four in a single visit, and minor issues such as a wrong fuse or a loose cord grip can be corrected on the spot where practical and agreed with you on site. - Ignoring old extension leads, which are one of the most common failure points on any site - Keeping damaged plugs or frayed cables in service because the appliance still switches on - Skipping annual testing until an audit, insurer or main contractor asks for the paperwork - Forgetting to log test dates, so nobody can prove what was tested or when it is next due ## Is PAT testing required by law? Technically, no: there is no law that names PAT testing as a mandatory procedure. What UK regulations do require is that you ensure electrical equipment is maintained in a safe condition. The obligation is the outcome, not the method. PAT testing is simply the most practical way to prove you have met that obligation. During an audit, an insurance claim, a tender or a pre-qualification questionnaire, a dated register of tested assets is documentary evidence; an assurance that the equipment looked fine is not. That is why managing agents, insurers and principal contractors keep asking for it, and why testing intervals are set by risk: frequently for 110v site tools and hire equipment, less often for static office equipment. - Evidence for insurers when a claim depends on equipment maintenance - Documentation for audits, tenders and pre-qualification questionnaires - Tool certification for site access under a principal contractor - Risk-based retest intervals set for your environment, not a generic annual default ## PAT testing detail: classes, intervals and environments PAT testing is not one procedure applied identically to everything with a plug. What gets tested, how, and how often depends on construction class, environment and duty cycle. ### Class I and Class II appliances Class I appliances rely on an earth connection for protection: kettles, microwaves, fridges, most desktop PCs, floor cleaners and many power tools. These receive earth continuity and insulation resistance testing. Class II (double insulated) appliances such as laptop power supplies, many chargers and plastic-bodied tools have no protective earth, so earth continuity does not apply and insulation testing or an equivalent leakage measurement is used instead. Recording the class correctly is what makes the register meaningful years later. ### IT equipment and server rooms Comms rooms carry high densities of leads, PDUs and rack-mounted equipment where an unplanned shutdown is unacceptable. Testing here is planned around your IT team, with alternatives such as visual inspection and leakage testing on live-critical equipment, and full testing scheduled during agreed maintenance windows. ### Extension leads, RCD adaptors and multiway blocks These are the single most common failure category in offices. Long leads coiled under load, daisy chains, four-way blocks feeding four-way blocks, and adaptors with internal damage all appear routinely. Each lead is treated as an asset in its own right rather than being lumped in with the equipment it feeds. ### Construction tools and 110v site equipment Site tools take physical abuse and are typically tested every three to six months. Transformers, festoon lighting, breakers, grinders and extension reels are checked for casing damage, cable pull-out and connector condition as well as electrical performance. Contractors usually need the certification in place before tools go through the gate. ### Rental properties, HMOs and student lets Appliances supplied with a tenancy, cookers, washing machines, fridges, microwaves, vacuum cleaners, are commonly tested annually and at change of tenancy. For HMOs and portfolios, testing is co-ordinated across properties so the whole compliance file renews on one cycle. ### Retail, hospitality and commercial kitchens Heat, grease, water and constant plugging and unplugging make catering environments high-attrition. Toasters, fryers, coffee machines, hand dryers and display equipment are inspected with particular attention to flex condition at the entry point and to contamination inside plugs. ### Setting your retest interval As a general guide, office equipment is typically tested every 12 to 24 months, construction tools every 3 to 6 months, and rental property appliances annually. Higher-risk or heavily handled equipment justifies shorter intervals. We confirm a sensible interval for your premises when we quote rather than applying a blanket twelve months to everything. ### Residential versus commercial Commercially, testing is about maintaining equipment provided for employees and visitors and evidencing it. In let residential property, the focus narrows to landlord-supplied appliances and the documentation a letting agent or tenant may ask for. The testing method is the same; the scope, register structure and reporting differ. ### Related services Commercial EICR CertificatesResidential EICR CertificatesEmergency Lighting Testing Where we work ## PAT Testing across London and High Wycombe Our engineers are fully mobile, covering all London boroughs, High Wycombe and the surrounding areas. Multi-site portfolios are co-ordinated under one point of contact. - Greenford - Central London - All London Boroughs - High Wycombe - West London - North London - South London - East London - Ealing - Uxbridge - Slough - WatfordNot sure whether we cover your postcode? Contact us or see all our compliance services. ## PAT Testing questions, answered If your question is not here, call us; we will tell you what your premises needs and what it does not. Call 07597 452886 How much does PAT testing cost in London?Pricing is quote-led and depends on appliance count, site layout and access. We do not publish rates because a small office and a multi-floor building are entirely different jobs. Send us the item count and postcode and we will return a fixed price; quotes are free. How long does PAT testing take?It depends on volume and access. A typical small office is usually completed within a few hours; larger sites and portfolios are phased across visits so nothing is disrupted. We confirm expected duration with your quote. How often does equipment need PAT testing?It is risk based. As a guide, office equipment is typically tested every 12 to 24 months, construction tools every 3 to 6 months, and rental property appliances annually. We will confirm a sensible interval for your environment when we quote. Do offices really need PAT testing?Yes. Laptops, chargers, monitors, heaters, kettles and extension leads all carry risk, and extension leads in particular are a common failure point. Testing reduces fire and shock risk and gives you documented evidence that workplace equipment has been checked. When will I receive my certificate?Certificates and asset registers are issued digitally, typically within one day of payment, so you can file or forward them immediately. What happens if an appliance fails?Failures are recorded clearly in the report with the remedial action required. Minor remedial work such as fuse changes, plug rewires and cord grip corrections can be carried out on the spot where practical and agreed with you; anything larger is quoted. Can you test outside business hours?Our engineers are mobile and we are frequently able to attend at short notice, including outside trading hours. Scheduling is co-ordinated by a dedicated Operations Manager so testing causes minimal disruption. Do you cover multi-site portfolios?Yes. We support single sites and multi-site portfolios across all London boroughs, High Wycombe and surrounding areas, co-ordinated under one point of contact. Are you insured?We hold £5,000,000 public liability insurance and £2,500,000 professional indemnity cover, and we are a Constructionline Bronze member working towards Gold in 2026. RAMS are issued on request. Do you send renewal reminders?We do not currently operate an automated reminder service. Your certificate carries the retest date, and we recommend emailing us ahead of renewal so we can get you booked in. ## Get pat testing booked and documented Send us the details and we will return a fixed, quote-led price. Certificates are issued digitally, typically within one day of payment. If you are working to a deadline, calling is fastest. - £5,000,000: Public liability insurance - £2,500,000: Professional indemnity cover - Constructionline: Bronze member, working towards Gold in 2026 - RAMS issued: Risk assessments and method statements on request07597 452886Testmasterinfo@gmail.com Electrical and fire safety compliance testing for businesses, property managers and landlords across London and High Wycombe. Read our Google reviews ## Services - PAT Testing - Commercial EICR Certificates - Residential EICR Certificates - Emergency Lighting Testing - Fire Alarm Testing - Fire Extinguisher Servicing - Fire Door Inspection - Fire Risk Assessments - Remedial Works for Fire Compliance ## Service Areas - Greenford - Central London - All London Boroughs - High Wycombe - West London - North London - South London - East London - Ealing - Uxbridge - Slough - Watford ## Contact - 07597 452886 - Testmasterinfo@gmail.com - London & High WycombePostal address: not provided - LinkedInOpening hours: 24/7 online enquiries © 2026 Test Master Ltd. All rights reserved. HomeAboutReviewsOur WorkContactPrivacy PolicyTerms & ConditionsCookie Policy Call NowFree Quote We use essential cookies to run this site, plus optional cookies for analytics and our enquiry form and chat. See our Cookie Policy. AcceptReject