Commercial lighting design in Wiltshire
Commercial lighting design means calculating and specifying luminaires, positions and controls so a space gets the right light for its tasks, meets standards such as BS EN 12464-1 and energy rules such as Part L, and is comfortable to work in. We cover Wiltshire, including Swindon, Salisbury and Trowbridge.

Commercial lighting design work in Wiltshire
A calculated design gives Wiltshire building control or landlords the efficacy evidence they ask for.
For Wiltshire projects with new layouts or tall spaces we model the lighting first, so the fittings ordered actually hit the target lux.
What's included
- Emergency lighting design to BS 5266-1
- Fitting selection balancing cost, efficacy and glare
- Part L or national efficacy evidence
- Lux calculations and plots for each area
Guide prices in Wiltshire
Typical budgets for Wiltshire, supplied and installed, excluding VAT. Your fixed price follows a free survey.
| Item | Guide budget (ex VAT) | Basis |
|---|---|---|
| Commercial electrician | £305 – £510 | per day |
| LED panel (600×600) | £50 – £155 | per fitting, supplied and fitted |
| DALI dimming and control | £50 – £155 | per luminaire, on top of the fitting |
| LED high bay | £155 – £410 | per fitting, supplied and fitted |
Example: three days of design and calculation work, about £920 – £1,550 excluding VAT.
Rules that apply in Wiltshire
Approved Document L (2021 edition, with 2023 amendments) asks for new general lighting to average at least 95 luminaire lumens per circuit-watt, or to use the LENI method. The 2026 edition raises this to more than 105 for work under it from 24 March 2027.
Towns we cover in Wiltshire
- Swindon
- Salisbury
- Trowbridge
- Chippenham
- Melksham
- Warminster
- Calne
- Westbury
- Devizes
- Neston
- Amesbury
- Bradford-on-Avon
- Bremhill
- Dinton
- Downton
- Haydon Wick
- Longbridge Deverill
- Malmesbury
- Manningford
- Savernake
- Stanton Fitzwarren
- Wroughton
- Yatton Keynell
Commercial lighting design FAQs for Wiltshire
Which towns in Wiltshire do you cover?
All of Wiltshire, including Swindon, Salisbury and Trowbridge. See the towns list on this page for local pages.
Which fire safety law applies in Wiltshire?
The Regulatory Reform (Fire Safety) Order 2005 sets the duties of the person responsible for fire safety, including emergency lighting where escape routes need it.
Can you design and install?
Yes. Most clients ask us to design and install so one team is responsible for the result.
Do I need a lighting design for an LED upgrade?
For a like-for-like swap in a simple office, a survey is often enough. For new layouts, warehouses, sports areas or where light levels are disputed, a calculated design avoids getting it wrong.
Related services in Wiltshire
- Lighting surveys and lux testing
- Fit-out and new-build lighting
- Lighting controls
- Emergency lighting installation