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For business premises

Commercial & industrial electricians

Electrical fit-outs, inspections and maintenance for offices, retail units, warehouses and industrial premises across South-East London.

βœ“ Three-phaseβœ“ Out-of-hours workβœ“ Minimal downtime
Get a Free Quote β†’ πŸ“ž 020 3967 3041

Commercial service

Free site survey + fixed quotation
  • Offices, retail & industrial
  • Three-phase distribution
  • Out-of-hours available
  • Fully certified & insured
Request a quote β†’

Professional commercial & industrial in SE London

From a single office refurbishment to a full commercial fit-out, T Phase delivers electrical work that keeps your business running and compliant. We handle distribution boards, three-phase supplies, lighting design, power, data containment, emergency lighting and complete rewires.

We understand commercial premises can't simply close, so we plan work around your hours β€” including evenings and weekends β€” to minimise downtime. All work is certified to BS 7671 and we're fully insured for commercial contracts.

Commercial services we provide

  • Office, retail and industrial fit-outs and rewires.
  • Three-phase distribution boards and supply upgrades.
  • LED lighting design, installation and emergency lighting.
  • Commercial EICRs, PAT testing and planned maintenance.
  • Fault finding and reactive repairs.

Built for landlords & managing agents

  • Testing and maintenance packages across multiple sites.
  • Clear reporting and compliance documentation.
  • One reliable contractor for inspections and remedials.

Why choose T Phase?

  • Local, Blackheath-based team β€” fast response across SE London.
  • NICEIC approved, fully insured, all work certified.
  • Clear, fixed pricing with no surprises.
  • 4.9β˜… from 159 verified Google reviews.
Common questions

FAQs

Do you work out of hours?

Yes. We routinely schedule commercial work in the evenings and at weekends to avoid disrupting your business.

Can you handle multi-site testing and maintenance?

Absolutely β€” we offer testing and maintenance packages for landlords and managing agents across multiple properties, with consolidated reporting.

Are you insured for commercial work?

Yes, we're fully insured and all work is certified to BS 7671 by NICEIC approved engineers.

More services

Other things we do

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EICRs & Safety Certificates

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House Rewires

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Consumer Unit Upgrades

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24/7 Emergency Electrician

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Get your free commercial quote

NICEIC approved Β· fixed pricing Β· same-day callbacks.

πŸ“ž 020 3967 3041 Request a callback
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