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.
Why choose sign lighting and LED upgrades in South Glamorgan?
- A painted fascia on a Cardiff high street can stay readable after dark with one slim trough light.
- An old fluorescent lightbox on a Cardiff parade can be converted to LED, cutting running costs and tube changes.
- Where flats sit above shops in Cardiff, downward-aimed, shielded fittings keep light on the sign and out of windows.
Guide prices in South Glamorgan
Guide prices start from £295 and go up to £1,450 per fascia, exclusive of VAT. The breakdown below shows where different sizes and options sit. Nothing is final until we have measured up or checked your artwork and sent a written quote.
| 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 |
Fascia length and fitting count drive the price, with access height, the cable route and a timer or photocell added where needed. Glass-neon conversions and very large boxes are quoted individually.
Consent for illuminated signs in South Glamorgan
Illuminated fascia and projecting signs in Wales usually need express consent from the council under the Town and Country Planning (Control of Advertisements) Regulations 1992, as amended. Because the Welsh rules differ in detail from England's, we check with the planning authority what applies to your building, especially in a conservation area or on a listed building, where listed building consent may also be needed. Councils commonly look at brightness against the ILP's PLG05 guidance and expect static lighting. The final connection to the mains is made by an electrician to BS 7671, and you receive the certificate. We prepare the drawings and photos, or submit the application for you.
Options worth considering
Glass neon to LED
An old neon layout remade in low-voltage LED flex.
Swan-neck spotlights
Curved arms with LED heads; suits painted and heritage fascias.
LED trough light
A slim bar on short arms washing the sign from above.
Towns in South Glamorgan
Towns in South Glamorgan we cover for sign lighting and LED upgrades are listed below. Each has its own page with guide prices and the steps involved, and if your town is not listed, we still cover it.
- Sign lighting and LED upgrades in Cardiff
- Sign lighting and LED upgrades in Barry
- Sign lighting and LED upgrades in Penarth
- Sign lighting and LED upgrades in Llantwit Major
- Sign lighting and LED upgrades in Whitchurch
- Sign lighting and LED upgrades in Rhiwbina
Photos of the building, window or vehicle, plus approximate sizes, are enough for us to quote sign lighting and LED upgrades anywhere in South Glamorgan. There is no charge for the quote and no commitment until you approve the proof.

