PAT Testing London 2026: Costs, Rules & Compliance

Hassan Ahmed

Priority First Team

September 17, 2026

•

11 min

Last updated: 17 September 2026

PAT testing London businesses commission typically costs £45–£120 including VAT per visit, higher than the £35–£85 UK average outside the capital, according to Housekeep. It is not a specific legal requirement, but the Health and Safety at Work etc. Act 1974 obliges employers to keep electrical equipment safe, making regular testing the standard way to demonstrate compliance.

Key Takeaways

Priority First reports that PAT testing in London costs £45–£120 including VAT on average, compared with £35–£85 outside the capital, per Housekeep's cost guide.
Priority First notes that PAT testing is not a specific legal requirement, but the Electricity at Work Regulations 1989 require employers to maintain electrical systems to prevent danger.
Priority First highlights that faulty electrical equipment and sockets cause around 70 deaths and 350,000 injuries in UK homes every year, according to Electrical Safety First via Meteor Electrical.
Electrical distribution faults were the largest identifiable cause of the 6,665 workplace fires recorded in UK non-residential buildings in 2026/25, at roughly 18% of incidents, per PAT Testing Course.
Testing frequency should follow a risk-based approach set by the Health and Safety Executive rather than a blanket annual rule, varying by equipment type and how a business uses it.

What is PAT testing and what does it involve?

PAT testing is a set of visual inspections and electrical checks carried out on portable appliances — electrical equipment connected to the mains by a plug, such as kettles, monitors and power tools — to confirm they are safe to use. A qualified tester examines the plug, cable and casing for damage, then uses a portable appliance tester to check earth continuity, insulation resistance and polarity.

Most inspections combine a visual check with an instrument test, since many faults — cracked casings, frayed cables, overheating signs — are visible before any equipment is plugged in. The HSE's official guidance confirms that a visual check alone catches the majority of dangerous defects, and a full electrical test then verifies what cannot be seen.

This matters because faulty appliances are a genuine fire risk in London workplaces. Electrical faults cause approximately 14,186 accidental dwelling fires in England each year, accounting for over half of all accidental home fires at 53.4%, according to MHCLG data cited by Meteor Electrical. Separately, around 19,300 accidental domestic fires of electrical origin occur across the UK annually, per the same source.

Is PAT testing a legal requirement in the UK?

PAT testing itself is not named as a specific legal requirement in any single UK statute. The Health and Safety Executive's official position states plainly that the law requires electrical equipment to be maintained to prevent danger, not that every item must be tested using a PAT machine on a fixed schedule.

That duty comes from several overlapping laws instead. The Electricity at Work Regulations 1989, available on legislation.gov.uk, require electrical systems — including portable appliances — to be constructed and maintained so as to prevent danger, so far as is reasonably practicable.

The Provision and Use of Work Equipment Regulations 1998 (PUWER), also on legislation.gov.uk, adds a duty to ensure work equipment is suitable, maintained and inspected. The Health and Safety at Work etc. Act 1974 sits above both, placing a general duty on employers to protect employee wellbeing.

In practice, London businesses that skip electrical testing altogether carry real risk. Electrical distribution faults were the largest single identifiable cause of the 6,665 workplace fires recorded in UK non-residential buildings during 2026/25, responsible for approximately 18% of incidents, according to PAT Testing Course. A documented PAT testing programme is the clearest evidence a business can produce if the HSE ever asks how it discharges its maintenance duty.

How much does PAT testing typically cost in London?

PAT testing cost in London runs higher than the rest of the country, driven by labour rates and demand in the capital's commercial market. Housekeep's cost guide puts London pricing at £45–£120 including VAT on average, against £35–£85 outside London.

Checkatrade confirms the same pattern, noting that London and South East pricing is often higher than the UK average, with providers charging higher minimum call-out fees or hourly rates than elsewhere in the country. For businesses budgeting across multiple sites, this London premium needs building into facilities cost planning from the outset.

Business type	Typical London range	Notes
Small office (under 20 items)	£45–£70	Often subject to a minimum call-out fee
Medium office (20–50 items)	£70–£120	Per-item rate usually drops with volume
Retail unit	£60–£100	Depends on till, display and back-office equipment count
HMO or rented residential	£45–£90	Landlords typically test kitchen and communal appliances
Hospitality venue	£80–£150+	Kitchen equipment adds inspection time and complexity

Costs vary further by item count, appliance type (Class I appliances with an earth connection take longer than Class II double-insulated items) and whether the provider charges a flat site visit fee or a per-item rate.

How often should PAT testing be carried out for different types of businesses?

PAT testing frequency should follow a risk-based approach rather than a single fixed interval across every business. The CHAS guidance on PAT testing confirms that testing intervals should reflect the type of equipment, how often it is used, and the environment it operates in.

A typical office with desktop computers and printers carries lower risk than a construction site with power tools, so intervals differ accordingly:

Offices: desktop IT equipment every 2–4 years; portable items such as kettles and extension leads annually
Construction sites: power tools and site equipment every 3 months, given harsher handling and exposure
Hospitality and catering: kitchen appliances annually, given daily heavy use and higher fault rates
Healthcare settings: more frequent intervals reflecting patient safety requirements and equipment intensity
Rented residential (HMOs): landlords typically test annually to evidence compliance to councils and letting agents

This risk-based model matters because faulty appliances and leads cause approximately 25.9% of domestic electrical fires, according to research cited by PAT Testing Course. Businesses using older or heavily handled equipment should test more frequently than this guidance suggests as a baseline.

Who is legally responsible for arranging PAT testing in a workplace?

Employers are legally responsible for maintaining the electrical equipment used by staff, visitors and contractors on their premises. This duty flows from the Health and Safety at Work etc. Act 1974, which places a general duty on every employer to ensure the health, safety and welfare of employees so far as is reasonably practicable.

Landlords carry a parallel duty for equipment they supply in rented premises, including HMOs and serviced offices, while managing agents often coordinate testing on a landlord's behalf across a portfolio. Facilities managers overseeing multi-tenant London buildings frequently sit at the centre of this responsibility, since they coordinate access, scheduling and record-keeping across occupiers who may not otherwise communicate.

This is precisely where compliance gaps open up in commercial buildings: everyone assumes someone else is arranging it. Priority First's approach to facilities management builds electrical compliance checks into the wider building maintenance calendar, so PAT testing sits alongside fire safety, fixed wiring inspections and other statutory checks rather than being left to chance. Priority First's own published resource, the Building Manager's Annual Compliance Calendar, sets out how building managers can schedule this alongside other annual obligations.

Who to use: qualified electrician vs in-house checks

Businesses face a genuine choice between commissioning a qualified, insured PAT testing contractor and training a member of staff to carry out basic checks in-house. A competent person carrying out PAT testing does not legally need to be a fully qualified electrician, but they must understand electrical principles, the risks involved, and how to use the test equipment correctly.

Approach	Best suited to	Trade-off
Qualified external contractor	Offices, retail, hospitality, multi-tenant buildings	Higher cost per visit, but insured, certified and independently accountable
Trained in-house staff member	Very small businesses with few appliances	Lower ongoing cost, but limited insurance cover and no independent audit trail
Facilities management partner	Multi-site portfolios and prime residential buildings	Bundles testing into a wider compliance programme with documented records

For most London businesses with more than a handful of appliances, an accredited contractor remains the safer route, since it produces an independently verifiable record that satisfies insurers and, where relevant, the HSE.

What qualifications should a PAT tester in London have?

A competent PAT tester in London should hold recognised electrical qualifications and operate under an established competent person scheme, even though no single mandatory certificate exists in law. The NICEIC, operated by Certsure, is the UK's leading voluntary regulatory body for electrical contractors and is widely recognised by London landlords, letting agents and councils.

NAPIT, the National Association of Professional Inspectors and Testers, offers a government-recognised alternative competent person scheme covering electrical inspection and testing work. Both bodies assess technical competence, insurance cover and ongoing professional development before granting registration.

When commissioning PAT testing in London, business owners should ask providers directly whether their engineers are NICEIC or NAPIT registered, carry public liability insurance, and hold City & Guilds or equivalent electrical qualifications. A provider unwilling to confirm registration details is a clear warning sign, since legitimate contractors readily share this information to build client trust.

What happens if equipment fails a PAT test?

Equipment that fails a PAT test must be immediately removed from service and either repaired, replaced or safely disposed of. A competent tester labels failed items clearly, records the fault on the test certificate, and advises whether repair is viable or whether the item should be scrapped.

Common failure reasons include damaged cables, incorrect fuse ratings, poor earth continuity on Class I appliances, and cracked or broken casings exposing internal wiring. Given that faulty appliances and leads cause an estimated 25.9% of domestic electrical fires, per research cited by PAT Testing Course, removing a failed item from use immediately is not a bureaucratic formality — it closes a genuine fire risk.

Businesses should keep a simple quarantine process: failed items are tagged, physically separated from working equipment, and not returned to use until re-tested and passed. This step is easy to overlook in busy offices, and it is one of the most common compliance gaps auditors find.

What documentation should I receive, and how should I store it?

A PAT testing certificate should list every item tested, its pass or fail status, the date of testing, and the tester's name and qualification details. Businesses should also receive an asset register recording each appliance's location, unique identifier and next test due date, allowing them to track compliance across an entire site or portfolio.

These records matter far beyond the test day itself. If the HSE investigates a workplace incident, or an insurer questions a claim following a fire, documented PAT testing history is the primary evidence a business produces to demonstrate it met its duty under the Electricity at Work Regulations 1989.

Priority First's own operational approach to compliance evidence — built for security patrols but equally applicable to electrical safety records — treats documentation as proof rather than paperwork: every checkpoint on a Priority First-managed site requires a photograph, GPS location and timestamp to be logged as complete, so missed checks show as visible gaps rather than passing silently. The same principle applies to PAT records: certificates and asset registers should be stored centrally, digitally where possible, and cross-referenced against a compliance calendar rather than filed away and forgotten.

Your PAT testing London compliance checklist

Confirm which appliances on site are Class I (earthed) versus Class II (double-insulated), since testing needs differ
Set risk-based testing intervals for each equipment category rather than applying one blanket annual date
Verify your provider's NICEIC or NAPIT registration and public liability insurance before booking
Request an itemised quote covering call-out fee, per-item rate and any minimum charge
Maintain a live asset register showing each appliance's location, last test date and next due date
Quarantine any failed item immediately and remove it from service until repaired or replaced
Store certificates and asset registers centrally, cross-referenced against your building's annual compliance calendar
Review testing frequency annually against how equipment is actually used, not just how it was used last year

FAQ

Is PAT testing a legal requirement in London?

PAT testing is not named as a specific legal requirement anywhere in UK law, including in London. However, the Electricity at Work Regulations 1989 and the Health and Safety at Work etc. Act 1974 require employers to maintain electrical equipment safely, and regular PAT testing is the standard, HSE-recognised way to evidence that duty.

How much does PAT testing cost in London?

PAT testing in London typically costs £45–£120 including VAT, according to Housekeep, compared with £35–£85 outside the capital. Checkatrade confirms London and South East pricing generally runs above the UK average due to higher minimum fees and hourly rates.

How often should PAT testing be done in London offices?

Office PAT testing frequency should be risk-based rather than fixed at one interval. A common approach tests portable items like kettles and extension leads annually, while fixed desktop IT equipment may only need testing every 2–4 years, following guidance from CHAS.

Who is responsible for PAT testing in a rented property in London?

Landlords are generally responsible for testing electrical equipment they supply within a rented property, such as kitchen appliances in an HMO. Tenants remain responsible for their own personal electrical items, and commercial tenants are typically responsible for equipment within their own leased space unless the tenancy agreement states otherwise.

What appliances need PAT testing in a London office?

Any appliance connected to the mains supply by a plug typically needs inclusion in a PAT testing programme. This covers kettles, microwaves, monitors, printers, extension leads, chargers, and portable heaters — essentially anything not permanently wired into the building's fixed electrical installation.

Can I do my own PAT testing or do I need a qualified electrician?

A fully qualified electrician is not a strict legal requirement to carry out PAT testing, but the person doing it must be competent, understand electrical risks, and know how to use the test equipment correctly. Most London businesses use accredited external contractors registered with NICEIC or NAPIT to ensure an independently verifiable, insured record.

What is the difference between PAT testing and an EICR?

PAT testing checks portable appliances plugged into the mains, while an EICR (Electrical Installation Condition Report) inspects the building's fixed wiring, consumer units and sockets themselves. Both are separate but complementary checks; London landlords typically need an EICR under the 2020 electrical safety regulations for private rented housing, alongside routine PAT testing of supplied appliances.

Securing electrical compliance across your London building with Priority First

Electrical safety is one strand of a much wider compliance picture that London building managers and business owners have to hold together — PAT testing sits alongside fire risk assessments, fixed wiring checks and security patrols on the same annual calendar. Priority First manages this bigger picture daily across prime central London buildings, coordinating facilities management, compliance scheduling and security cover under one accountable partner rather than leaving separate contractors to work in isolation.

Priority First's evidence-based approach to compliance is built on the same principle that underpins good PAT record-keeping: nothing counts as done unless it is documented. Across Priority First's managed sites, checkpoint patrols carry photo, GPS and timestamp evidence for every completion, with missed checks showing as visible gaps rather than passing silently — a standard readily applied to tracking electrical testing due dates too.

If your London building or business needs its compliance calendar brought under one roof — from PAT testing scheduling to security and facilities management — get in touch with Priority First to discuss a facilities management partnership tailored to your site.

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