Lighting controls in Hertfordshire
Lighting controls switch or dim lights automatically based on occupancy, daylight or time. We cover Hertfordshire, including Watford, Hemel Hempstead and Stevenage.
Lighting controls work in Hertfordshire
Daylight dimming works best in premises around Hertfordshire with deep window bays or roof lights.
In Hertfordshire buildings, the quickest control savings usually come from presence detection in rooms that are used for only part of the day.
What's included
- Retrofit wireless controls where rewiring is impractical
- Presence and absence detection for rooms, aisles and toilets
- Daylight-linked dimming along windows and under roof lights
- Commissioning and simple user handover
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 |
|---|---|---|
| Presence (PIR) sensor | £40 – £80 | per sensor, installed |
| Daylight sensor | £60 – £125 | per sensor, installed |
| DALI dimming and control | £50 – £155 | per luminaire, on top of the fitting |
| Commercial electrician | £310 – £515 | per day |
Example: presence and daylight sensing for 40 existing LED panels, about £720 – £1,450 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
Lighting controls FAQs for Hertfordshire
Which towns in Hertfordshire do you cover?
All of Hertfordshire, including Watford, Hemel Hempstead and Stevenage. See the towns list on this page for local pages.
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.
What is DALI?
DALI is a digital lighting control standard that lets each fitting be addressed, dimmed and grouped individually, with scenes and fault reporting.
What do sensors cost?
As a budget, a basic presence sensor costs about £40–£80 installed, a daylight sensor £60–£120, and DALI control around £50–£150 per luminaire on top of the fitting, excluding VAT.