Established over 40 years

Some of our services

Triangle focus on Commercial Electrical, Compliance, and Maintenance to Greater London and the surrounding counties, towns and boroughs.  Our expertise makes us the 1st choice for projects ranging from £50k to £5M.


We never take on work if we are at capacity – stretching our resources is strictly against our ethos of value over cost/turnover, with this said it is very rare that we turn down an opportunity.  We are a sustainable company that our clients and staff depend on equally.  Below is a list of our common services.  

Get in touch if you have an enquiry about anything not listed. 

  • 1-5 year service agreement contracts 

  • Maintenance services

  • Installation services
  • Electrical Services
  • AOV & Fire Alarms

  • Electrical distribution & Surge protection

  • LED upgrades 

  • Emergency lighting 
  • 5year fixed wire testing (EICR)

  • Electrical supply load monitoring and balancing

  • After care & snagging

  • Consultation and 3rd party audits

  • Trace heating solutions to external escape stairwells and pipework

  • Access & CCTV 
  • Thermographic surveys
  • Lighting timers and controls 

  • Obstruction/Aviation lighting

  • Troubleshooting 

  • Wet/Dry riser, Sprinklers and Fire Hydrants 

  • Fire Extinguishers 

  • Electric car charging points

  • Passive Fire (Fire Stopping and Fire Doors)

  • PAT testing 

Planned preventative maintenance (PPM), Remedial work & projects are conducted on approval of a fixed price quotation.  


What clients say


"Triangle have proven to be honest, reliable and continue to be our preferred electrical contractor."


Send us a message

Send Triangle a message to discover how we can become an asset to your team

© 2019 Triangle Electrical Services Ltd

Triangle Electrical Services Ltd is UK VAT registered company; GB1037 87417. Company registration number: 06270360