Commercial lighting design in Gwynedd
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 Gwynedd, including Bangor, Aberdovey and Aberffraw.

Commercial lighting design work in Gwynedd
A calculated design gives Gwynedd building control or landlords the efficacy evidence they ask for.
For Gwynedd 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
- Control strategy and zoning
Guide prices in Gwynedd
Typical budgets for Gwynedd, supplied and installed, excluding VAT. Your fixed price follows a free survey.
| Item | Guide budget (ex VAT) | Basis |
|---|---|---|
| Commercial electrician | £290 – £485 | per day |
| LED panel (600×600) | £50 – £145 | per fitting, supplied and fitted |
| DALI dimming and control | £50 – £145 | per luminaire, on top of the fitting |
| LED high bay | £145 – £390 | per fitting, supplied and fitted |
Example: three days of design and calculation work, about £875 – £1,450 excluding VAT.
Rules that apply in Gwynedd
The Welsh Approved Document L Volume 2 (2022) uses 95 luminaire lumens per circuit-watt for general lighting, with alternatives such as LENI. A new Welsh edition takes effect from 4 March 2027 with a higher figure of more than 105.
Towns we cover in Gwynedd
- Bangor
- Aberdovey
- Aberffraw
- Amlwch
- Arthog
- Bala
- Barmouth
- Beaumaris
- Bodorgan
- Brithdir
- Bryncrug
- Buan
- Criccieth
- Dolbenmaen
- Dyffryn Ardudwy
- Ffestiniog
- Harlech
- Llanbadrig
- Llanbedr
- Llandygai
- Llaneugrad
- Llanfair-Mathafarn-Eithaf
- Llanfihangel Ysgeifiog
- Llangefni
- Llangelynin
- Llanllyfni
- Llannerch-Y-Medd
- Llanrug
- Moelfre
- Penrhyndeudraeth
- Pentraeth
- Penysarn
- Porthmadog
- Rhosneigr
- Rhosybol
- Talsarnau
- Valley
- Y Felinheli
Commercial lighting design FAQs for Gwynedd
Which fire safety law applies in Gwynedd?
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.
What energy rules apply to new lighting in Gwynedd?
The Welsh Approved Document L sets the efficiency that new lighting in Gwynedd must meet. We check fittings against it at design stage and keep the evidence for building control.
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 Gwynedd
- Lighting surveys and lux testing
- Fit-out and new-build lighting
- Lighting controls
- Emergency lighting installation