Tips & Advice

Commercial Electrical Maintenance: What Businesses Need to Know

Regular electrical maintenance protects your business from downtime, compliance issues, and safety risks. Here's what should be included.

Shaye Grant6 December 20249 min read

Why Commercial Electrical Maintenance Matters

For businesses, electrical issues mean:

  • Lost productivity and revenue
  • Safety risks for staff and customers
  • Compliance failures and potential fines
  • Insurance complications

Planned maintenance prevents problems before they occur.

Legal Requirements for Businesses

Electricity at Work Regulations 1989

Requires businesses to:

  • Maintain electrical systems in safe condition
  • Ensure competent persons conduct maintenance
  • Keep records of inspections and testing
  • Address defects promptly

EICR Requirements

Commercial properties:

  • EICR every 5 years (minimum)
  • More frequently for higher-risk environments
  • Required for insurance in many cases
  • Often needed for lease compliance

Fixed Wire Testing

Business TypeRecommended Frequency
RetailEvery 5 years
IndustrialEvery 3 years
RestaurantsEvery 3 years
Entertainment venuesEvery 3 years
HotelsEvery 5 years

What Maintenance Should Include

Annual Inspection

Visual checks:

  • Consumer unit condition
  • Socket and switch condition
  • Cable containment integrity
  • Emergency lighting function
  • Fire alarm system visual

Testing:

  • RCD operation
  • Earth fault loop impedance (sample)
  • Insulation resistance (sample)
  • Emergency lighting duration

PAT Testing

Portable Appliance Testing for:

  • Office equipment
  • Kitchen appliances
  • Tools and machinery
  • Extension leads and cables

Frequency varies:

  • Low-risk office: Annual
  • Industrial: 6-monthly
  • Public venues: 3-monthly to annual

Emergency Lighting

Requirements:

  • Monthly flash test (can be automated)
  • Annual 3-hour duration test
  • Record keeping essential
  • Battery replacement as needed

Fire Alarm Testing

Weekly:

  • Activate one call point
  • Confirm sounders operate
  • Log the test

Annual (by qualified engineer):

  • Full system test
  • Detector head cleaning
  • Battery condition check
  • Control panel service

Benefits of Maintenance Contracts

Planned vs Reactive

FactorPlanned MaintenanceReactive Only
DowntimeMinimalSignificant
ComplianceAssuredRisk of gaps
PriorityGuaranteed responseQueue-based

Contract Inclusions

Standard contracts typically include:

  • Annual EICR
  • Quarterly visual inspections
  • PAT testing
  • Emergency lighting tests
  • Priority callout rates
  • 24/7 emergency cover

Premium contracts add:

  • Preventive component replacement
  • Fire alarm servicing
  • Fixed emergency callout cost
  • Dedicated account manager

Maintenance Contract Costs

Business SizeAnnual Contract
Medium office (50-200m²)£500 - £1,000
Retail unit£400 - £800
Restaurant/café£600 - £1,200
Industrial unit£800 - £2,000
Multi-siteCustom pricing

Creating Your Maintenance Schedule

Monthly Tasks

  • Emergency lighting flash test
  • Visual inspection of high-use areas
  • Fire alarm test
  • Log review

Quarterly Tasks

  • Detailed visual inspection
  • RCD testing
  • PAT testing (high-risk items)
  • Minor repairs

Annual Tasks

  • Full EICR
  • Emergency lighting duration test
  • Fire alarm service
  • Thermal imaging survey
  • Comprehensive PAT testing

Signs You Need Immediate Attention

Don't wait for scheduled maintenance if:

  • Tripping breakers repeatedly
  • Burning smells from electrics
  • Flickering lights throughout building
  • Warm switches or sockets
  • Visible damage to installations
  • After flooding or water ingress

Choosing a Commercial Electrician

Essential Criteria

✅ Approved registered contractor

✅ Commercial/industrial experience

✅ Public liability insurance (£10M+)

✅ Employees liability insurance

✅ References from similar businesses

✅ 24/7 emergency capability

✅ Proper certification provided

Questions to Ask

  • What's included in your maintenance contract?
  • What's your emergency response time?
  • Do you have experience in our sector?
  • Can you provide references?
  • What certification do we receive?
  • How do you handle out-of-hours?

Record Keeping Requirements

Maintain records of:

  • EICR reports
  • PAT test registers
  • Emergency lighting logs
  • Fire alarm test logs
  • Maintenance visit reports
  • Remedial work completed

Retention: Minimum 5 years (longer recommended)

Frequently Asked Questions

Is commercial maintenance tax deductible?

Yes. Electrical maintenance is a legitimate business expense.

What if we're tenants?

Check lease - often landlord responsibility for fixed installation, tenant for portable.

Can we use any electrician?

For compliance, use registered contractors who can certify work properly.

Need commercial electrical maintenance in Devon? Call Grant's Electrical Solutions on 01626 374 059 for tailored maintenance contracts.

SG

Article written by

Shaye Grant

Founder & Lead Electrician at Grants Electrical Solutions

18th Edition BS 7671CHAS #81569Part P Certified

10+ years experience in domestic and commercial electrical work. Expert in rewires, EV charger installations, and EICR testing.

View full profile →

Topics covered:

commercial electrical
maintenance contracts
EICR
PAT testing
business electrical

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