Commercial lighting design in Hertfordshire
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 Hertfordshire, including Watford, Hemel Hempstead and Stevenage.
Commercial lighting design work in Hertfordshire
For Hertfordshire projects with new layouts or tall spaces we model the lighting first, so the fittings ordered actually hit the target lux.
A calculated design gives Hertfordshire building control or landlords the efficacy evidence they ask for.
What's included
- Drawings and schedules for tender or installation
- Emergency lighting design to BS 5266-1
- Lux calculations and plots for each area
- Control strategy and zoning
Guide prices in Hertfordshire
Typical budgets for Hertfordshire, supplied and installed, excluding VAT. Your fixed price follows a free survey.
| Item | Guide budget (ex VAT) | Basis |
|---|---|---|
| Commercial electrician | £310 – £515 | 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 £925 – £1,550 excluding VAT.
Rules that apply in Hertfordshire
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 Hertfordshire
- Watford
- Hemel Hempstead
- Stevenage
- St Albans
- Welwyn Garden City
- Cheshunt
- Hatfield
- Bishops Stortford
- Borehamwood
- Hitchin
- Hoddesdon
- Letchworth Garden City
- North Watford
- Harpenden
- Bushey
- Hertford
- Rickmansworth
- Potters Bar
- Berkhamsted
- Ware
- Abbots Langley
- Buntingford
- Bygrave
- Ippollitts
- Kings Langley
- Knebworth
- Much Hadham
- Radlett
- Redbourn
- Sandridge
- Sawbridgeworth
- Standon
- Tring
- Welwyn
Commercial lighting design FAQs for Hertfordshire
What energy rules apply to new lighting in Hertfordshire?
Approved Document L sets the efficiency that new lighting in Hertfordshire must meet. We check fittings against it at design stage and keep the evidence for building control.
Which fire safety law applies in Hertfordshire?
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.
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.
Can you design and install?
Yes. Most clients ask us to design and install so one team is responsible for the result.
Related services in Hertfordshire
- Lighting surveys and lux testing
- Fit-out and new-build lighting
- Lighting controls
- Emergency lighting installation