TRADE PRICING GUIDE

How to Price Commercial Electrical Installation as an Electrician — UK 2026

A practical pricing guide for self-employed UK electricians and small contractors. Whether you are new to commercial electrical installation or you have been pricing them for years, this guide gives you the fair-margin bands, what to include in every quote, the regulatory background, and the mistakes that quietly destroy your margin. Designed for electrical contractors pricing commercial fit-out work.

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9 min readUpdated 2026-05-18Andrew Moore, Founder of Elec-Mate

Written and reviewed by Andrew Moore, founder of Elec-Mate, against BS 7671:2018+A4:2026, IET Guidance Note 3 and the IET On-Site Guide.

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Key Takeaways

  • 1Typical fair-margin price for commercial electrical installation: £Highly variable — £40-70/m² for fit-out, £75-115/hour for project labour in 2026. Minimum floor £5000; top end £200000.
  • 2Target hourly rate for electrical contractors pricing commercial fit-out work: £75–115 (commercial premium over domestic) (excluding VAT). Below this band you are subsidising the customer.
  • 3Regulatory references: BS 7671:2018+A4:2026 (all chapters incl. Section 528, 537), BS EN 61439 (assemblies), CDM 2015, Building Regs Part L (energy efficiency).
  • 4Always quote the certification (EIC / MWC / specific) as a deliverable — never include it as a freebie. Without the certificate your work is not legally valid.
  • 5Below-market quotes from competitors usually mean missing insurance, missing scheme membership, missing test sweep, or missing certificate. Educate clients, don’t race to the bottom.
  • 6Your scheme fee (~£500/year), professional indemnity (~£500–1,000/year), calibrated test kit (~£1,200 every 3–5 years) and ongoing CPD are all real costs that justify the band.
01 · Trade Pricing Guide

Fair-Margin Pricing for Commercial Electrical Installation

The UK electrical trade is being squeezed by aggregator platforms, race-to-the-bottom quoting, and customers who treat compliance as a commodity. This page is on the side of electrical contractors pricing commercial fit-out work. The bands below assume you are a scheme-registered electrician (NICEIC, NAPIT, ELECSA or Stroma) carrying current professional indemnity insurance, calibrated test equipment and the relevant regulatory currency.

  • Minimum sustainable price: £5000 — below this you are paying the customer to do their work
  • Typical fair-margin band: £Highly variable — £40-70/m² for fit-out, £75-115/hour for project labour
  • Top end of range (complex / commercial / time-critical): £200000
  • Target hourly rate: £75–115 (commercial premium over domestic) excluding VAT

Why these numbers exist

Every NICEIC / NAPIT scheme-registered electrician carries: scheme fees (~£500/year), professional indemnity (~£500–1,000/year), calibrated MFT (~£1,200 every 3–5 years), van + tools, ongoing CPD, and personal liability on every certificate signed. If you price below the floor, you are not earning a margin — you are subsidising the customer and accepting unbounded liability.

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02 · Trade Pricing Guide

What Must Be Included in the Quote

A defensible quote for commercial electrical installation should explicitly itemise every line. Below is the list electrical contractors pricing commercial fit-out work should be tracking on every job, with critical line items called out:

  • Always insist on a clear scope document with drawings — verbal scope creep eats commercial margins
  • Three-phase supplies, large distribution boards, fire-rated cabling and SWA add significant material cost
  • Part L (energy efficiency) increasingly affects lighting design — LED + controls expected
  • BIM coordination on larger jobs — if the customer requires BIM model, charge for the time
  • Variations / change orders should be priced before work proceeds — never absorb them
  • Retention (5-10% held for 12 months) is normal — factor into cashflow

Quote with confidence — itemise everything

Elec-Mate generates fully itemised quotes for commercial electrical installation in two minutes. Every line item, every certificate, every variation — clear pricing the client cannot haggle. 7-day free trial.

03 · Trade Pricing Guide

Common Pricing Mistakes

These are the most common pricing mistakes electrical contractors pricing commercial fit-out work make on commercial electrical installation. Each one quietly eats your margin until you are working for less than minimum wage:

  1. Pricing commercial at domestic hourly rates — completely different liability + indemnity tier
  2. Not having a clear variation procedure — clients will pile on extras and pay later
  3. Forgetting parking, mileage and welfare on long commercial jobs
  4. Skipping the as-built drawings + O&M pack — these are usually contractually required

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04 · Trade Pricing Guide

Regulatory Background You Need to Quote Around

Pricing without understanding the regulatory requirements is how electricians end up doing extra work for free. The relevant references for commercial electrical installation are: BS 7671:2018+A4:2026 (all chapters incl. Section 528, 537), BS EN 61439 (assemblies), CDM 2015, Building Regs Part L (energy efficiency). Quoting must factor in: time on-site, certification time, scheme-notification time, and any DNO coordination required.

BS 7671:2018+A4:2026 (the 18th Edition published 15 April 2026) is the current standard. Any quote that does not factor in current A4:2026 requirements — including AFDDs in HMOs, updated SPD thresholds, and the new Schedule of Tests columns — is under-quoting on certified-compliance work.

05 · Trade Pricing Guide

Using Elec-Mate to Quote Commercial Electrical Installation

Elec-Mate is built for electrical contractors pricing commercial fit-out work. The pricing engine handles: line-item quoting, customer-facing PDF quotes, materials lookups with retail+ markup, certification (EIC, EICR, Minor Works) for the job, and direct payment links. Quote commercial electrical installation in two minutes from your phone on site.

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A Repeatable Quoting Process for Commercial Electrical Installation

Use this five-step process every time you quote commercial electrical installation to ensure you protect your margin and the customer gets a fair, defensible price.

1

Survey the job before quoting

Either on-site or via phone photos: identify scope, complexity, access, current condition, and any remedial work likely. Never quote off a verbal brief alone.

2

Itemise every line in writing

Materials at retail+, labour at your hourly rate × estimated time, certification, scheme notification, travel / minimum visit, any DNO coordination, any waste removal.

3

Apply the right band — never go below floor

Cross-check your total against the £Highly variable — £40-70/m² for fit-out, £75-115/hour for project labour fair-margin band. If you’re below £5000, you’ve missed something — re-check materials, time and certificate.

4

Quote with a variation clause

Make explicit: "Quote excludes [list]. Variations priced at £75–115 (commercial premium over domestic)/hour or fixed quote on identification of additional scope." Get the customer to acknowledge.

5

Deliver the certificate and invoice promptly

Issue the EIC / MWC / EICR on the day of completion. Invoice the same day. Use payment links to reduce time-to-cash from 30 days to 3 days.

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