Sign lighting is external or retrofitted lighting that makes an existing sign readable after dark: LED trough lights, swan-neck spotlights or wall washers, or LED modules replacing old lightbox tubes.
What sign lighting and LED upgrades can do for businesses in Cardiff
- Pubs in Cardiff with traditional painted boards can add swan-neck spotlights that suit the period look of the frontage.
- On a retail park outside Cardiff, wall washers can light the sign and entrance on dark winter afternoons.
- An old fluorescent lightbox on a Cardiff parade can be converted to LED, cutting running costs and tube changes.
What sign lighting and LED upgrades cost in Cardiff
Pricing for sign lighting and LED upgrades is worked out job by job, but the guide range is £295 to £1,450 per fascia + VAT. The table lists typical options. Your figure is confirmed only after a site survey or a check of the artwork you send.
| Item | Guide, ex VAT | Inc. VAT (20%) |
|---|---|---|
| LED trough light, up to 3 m | £295 – £750 | £354 – £900 |
| Spotlights (set of 3–4) | £345 – £895 | £414 – £1,074 |
| LED retrofit of an old fluorescent lightbox | £295 – £1,450 | £354 – £1,740 |
Guide prices: £295–£750 + VAT for an LED trough light up to 3 m, £345–£895 + VAT for a set of 3–4 spotlights, and £295–£1,450 + VAT to retrofit an old fluorescent lightbox with LEDs. Prices exclude VAT and are confirmed after survey.
Options for your Cardiff project
LED trough light
A slim bar on short arms washing the sign from above.
LED lightbox retrofit
Tubes and ballasts swapped for LED modules and a new driver.
Swan-neck spotlights
Curved arms with LED heads; suits painted and heritage fascias.
Consent for illuminated signs in Cardiff
Wales has its own advertisement regulations, and a lit sign is the case where they matter most. Internally illuminated, halo-lit and lit projecting signs typically need express consent, and on listed buildings or in conservation areas the council is likely to look closely at size, light levels and fixings. Keep illumination static and moderate; PLG05 from the Institution of Lighting Professionals is the usual reference. LED modules and drivers run at low voltage, but the mains connection still needs an electrician working to BS 7671. We check before you commit and can prepare or submit the consent application.
Covering Cardiff and South Glamorgan
Our service reaches Cardiff and all of South Glamorgan. The first step depends on the job: a site visit for signs that need measuring, fixing or wiring, or a photo-based quote for graphics and lettering where pictures and sizes tell us enough. The Cardiff postcode districts we quote for include CF10, CF11, CF24 and CF23.
Close to Cardiff
- Sign lighting and LED upgrades in Whitchurch 3 mi
- Sign lighting and LED upgrades in Penarth 3 mi
- Sign lighting and LED upgrades in Rhiwbina 4 mi
- Sign lighting and LED upgrades in Caerphilly 7 mi
- Sign lighting and LED upgrades in Barry 7 mi
No commitment and no charge for quoting. Send photos with rough sizes for sign lighting and LED upgrades in Cardiff and we will reply with a price and then, once you are happy, a proof you approve before manufacture.
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All sign types in Cardiff · Sign lighting and LED upgrades across South Glamorgan

