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Electrical Test & Inspection in Warrington

Duty holders are responsible for setting up adequate maintenance programmes and must assess the needs and frequency requirement of testing, maintaining and monitoring electrical systems and equipment.




Why do you need electrical inspection and testing?

The Electricity At Work Regulations Regulation 4(2), state

“All systems to be maintained so as to prevent, so far as is reasonably practicable, danger”.

“System” means the wiring of an electrical installation and everything connected to it.

Generally, the following test intervals may be applied for guidance purposes: –


Electrical Installations

Type of Installation

Maximum period between inspections


Domestic                                                                                    10 years

Commercial                                                                                5 years

Industrial                                                                                    3 years

Churches (over 5 years old)                                                     1 year

Places of public entertainment                                               1 year

Petroleum stations                                                                    1 year

Emergency lighting & Fire alarms                                         1 year

Portable Appliances                           As per Code of Practice – 4th Edition





Industrial / Workshops                                                                         6 months

Commercial (normal & class I)                                           12 months

Commercial (low risk & class II)                                                      24 months


As an Approved Inspection and Testing Company of the NICEIC, our team of specialist Electrical Inspectors can help to keep you fully compliant with the latest Health and Safety Legislation and undertake a range of testing services to include:


  • Fixed Wiring Installation
  • Emergency Escape Lighting
  • Portable Appliance Testing (PAT)
  • Lightning Protection
  • Fire Alarms
  • Thermograhic Survey
  • Landlord Certification

Need help with your testing and inspection?
Call us to discuss your project on  01925 766 044


We offer a full range of electrical services, from one-off jobs to complete projects and through to service and maintenance. View our other electrical services, learn more about our service plans or find out about our Design, Install and Maintain process.

Arrange Your Testing and Inspection Quote

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"We had a very tight deadline, with a number of key challenges to overcome, McLennan’s knowledge and flexibility throughout the project was pivotal to its success. This new facility will ensure Eddie Stobart are at the forefront of multi-modal logistics in the UK"

~ Neale Burdon, Head of Facilities, Eddie Stobart

"It has been a pleasure to work with McLennan Electrical over the last few years. They have always been very responsive pre-order and have followed this positive aspect right through the actual installation process and onto the post build support."

~ Bert Willow, Director, Butler & Willow Limited

"McLennans are a first class quality supplier and an established partner for S + B UK delivering electrical solutions to our business needs."

~ Jim Burgess, Operations Manager, S + B UK LTD

"Hyvauk ltd have a long standing relationship of some 25+ years with McLennans and have always had good reliable service, I had no doubts in appointing them as the electrical contractor to assist us in our recent site relocation. McLennans worked alongside us in the demanding schedule and met their targets on time and within budget."

~ Tony Davies, Managing Director, Hyva UK Ltd

"Our operation demands a precise and reactive service. We have selected McLennan Group due to their high levels of service and cost effective solutions. Their attention to detail, workmanship and dedication is second to none.”

~ Colin Brown, Laser & Mailing Production Manager, MBA Group


It's the way we put your service together that sets us apart.

McLennan Engineers are trained, qualified and insured to work on your premises.

Learn more about how McLennan is the best solution for your electrical service fulfilment.

or call our team on 01925 766 044 to discuss your requirements.