Mounting a lightbox sign

Searches for “lightbox signage Singapore price” and “light box signage price” want a fabrication number. Makers publish their own ranges. None of those ranges are on this site. Mounting a tray that already exists, or opening one that has gone dark, is quote on inspection. If someone has folded a new face, a new tray and a night hang into the S$55 call-out, that sentence is wrong. The S$55 figure is a single permit-exempt task that already has a sentence. A lightbox is not that task.

The object is simple and people still mis-name it. The tray is the structure. The face is a printed acrylic or a tensioned fabric held by a retainer or a clip frame. Inside, LED modules are stuck or screwed to the tray back, wired in strings to a driver that turns mains into the voltage the modules want. A fluorescent lightbox that still has tubes is the same tray with a different lamp. Replacing tubes with LED modules is the usual repair, and it is not automatic: the old ballast comes out, the modules need a flat bed, and the driver needs air. The repair page is the right page when the tray is sound and only the lamp has failed.

BCA’s licence page treats an outdoor lightbox as a signboard or an advertisement depending on what is printed on it. A business name is argued as a signboard. A product brand is an advertisement. BCA’s fee-computation examples include a lightbox as one way of measuring area. The fee, if ALS says one is due, is paid to BCA. Projection over a verandah-way or footpath must not be less than 2.5 metres above that surface, which is the figure on BCA’s supporting page. HDB shops add their own 2.60 metre clearance and a 600 mm maximum height above the front door. Both can apply. The stricter one governs.

Curtains, blinds and roller shades are not part of this booking.

The tray is offered up only after the anchors are in structure. On a concrete beam or a brick pier, the holes are marked from the tray’s brackets, drilled, and fitted with anchors rated for the weight in shear, because a projecting box loads the top anchors in tension. On a steel shopfront bulkhead, the fixings are self-drilling screws or bolts into the steel, not into the aluminium cladding that is only a skin. A bracket screwed into the roller-shutter guide is refused. The guide is an alignment for the curtain. It is not a beam. Good work leaves the shutter running and the tray still when you push the bottom edge. Sloppy work leaves a sway, a packer made of scrap wood, and a screw in the guide.

The face is the part tenants notice and the part fitters rush. A rigid acrylic face sits in a retainer. If the retainer is short of screws, the face bows in the sun and the print cracks. A fabric face is tensioned in a frame. A fabric face that is only taped in will sag after rain. Print is on the inside face where the sun cannot bleach it as fast, unless the maker designed an external vinyl. External vinyl that is peeling is a vinyl failure, not an LED failure. Do not replace modules because the print has faded. The repair page separates those two.

Drainage is a hole or a gap at the bottom of the tray, with a path that does not pour onto the shutter motor. Trays without a drain fill, the modules sit in water, and the face stains in a tide mark. A drain that is sealed “to keep insects out” with no mesh is the same failure. Insects are a mesh problem. Water is a hole problem. Silicone smeared around the whole perimeter, including the bottom, is how fitters create the tide mark.

The driver is mounted so the terminals can be reached without dropping the tray. A driver screwed behind the modules, accessible only by destroying the face, is the sloppy version. Mains comes from an isolator you can switch off without opening the tray. If that isolator does not exist and a new cable is required, stop. The dedicated-circuit sentence on the DB page is S$220 to S$450 when the work matches it, done by an EMA licensed electrician. Homey Furnishing does not land the driver on a trailing socket inside the ceiling void. A like-for-like driver swap on an existing suitable supply, with the tray isolated, is still quote on inspection. It is not the circuit band, and it is not a handyman lamp change.

Measure the opening the box must fit, not only the box. A tray that is 2,400 mm wide on a bulkhead that is 2,200 mm between piers does not “trim on site” if the face is already printed. Send the pier-to-pier dimension. Say whether the old tray stays. Replacing a face on an old tray is a different visit from hanging a new tray beside the old one and leaving both.

If the box is dark, say whether it is dark in one patch, flickering, or dead. A patch is often one module string. A dead box is often the driver or the supply. Photograph the isolator with the power off and the tray closed. Do not open a wet tray. Mall units that can only be worked at night use the mall overnight row, S$380 to S$650, only when the mall wants permit-to-work admin and one hardware fix. A lightbox hang is often more than one hardware fix, so expect quote on inspection even when the night slot is real.

Most lightbox jobs are one of four visits. Name it before you ask for a price.

Questions a business should ask

Ask anyone pricing a lightbox these questions.

1. Is the tray staying, or is the whole box new?
2. What does it weigh, and what are the anchors going into?
3. Where is the isolator, and is the cable existing?
4. Can the driver be changed without destroying the face?
5. Does the bottom drain, and where does the water go?
6. Is the underside at least 2.5 m above the footpath, and 2.60 m if HDB states that for this shop?
7. Who fabricates the face, and is that invoice separate?

The same tray is a licence question outdoors and a landlord question in a mall.

BCA’s supporting page states the 2.5 metre figures for signs in a verandah-way, over a footpath, and over a roadside drain, and the projection limits of 60 cm or 1.5 m depending on height above the street. A Permit To Use, applied for by a professional engineer through CORENET, is required before the licence when the sign exceeds 10 square metres and is supported by an advertising structure, or the structure exceeds 10 square metres, or its highest point is 4 metres or more above the surface it stands on. A small shop lightbox is often under those tests. A large tray on a frame is often over them. We do not stamp the engineer’s drawing.

Flickering, flashing and running lights are on BCA’s prohibited list except on the streets BCA points to in URA’s circulars. A lightbox that simply stays on is not a running light. A lightbox with a chasing programme is. SCDF exit signs are a different product under clause 8.1 and SS 563. Do not put a shop face in an exit-sign housing. Electrical work on a new cable is an EMA licensed electrician.

Official pages

• BCA: outdoor advertising sign and signboard licence
• BCA: sign projection rules, Permit To Use and licence fees
• URA circular DC21-04: outdoor signs and BCA advertisement licensing
• SCDF Fire Code 2023 clause 8.1: exit lighting and exit signs

Homey Furnishing Pte. Ltd. (ACRA UEN 202018148K), 27 Mandai Estate, #06-10 Innovation Place, Singapore 729931, invoices the permit-exempt visit. V On Construction Pte. Ltd. (ACRA UEN 201611708H), on the HDB Directory of Renovation Contractors, invoices hacking, a new layout, and an HDB renovation permit. Homey Furnishing is not a property agency, not a CEA practice, and not a MOM-licensed employment agency.

How you're charged

A job that already has a sentence on HomeySG uses that sentence. The hour is not added on top of a band unless the written scope says so. There is no fuel surcharge and no published night premium except the mall overnight row.

The tray, the face and the modules are quote on inspection. The circuit band and the mall-night band apply only when the photo matches those sentences.

Ways to keep the bill smaller

• Reprint the face before you scrap the tray. A sound tray with dead modules is a repair.
• Specify a reachable driver and a bottom drain in the maker’s drawing. Both are cheaper in the workshop than on a ladder.
• Measure between the piers before the face is printed.
• Switch off at an isolator. A visit that starts by finding the breaker is longer than a visit that starts at a labelled switch.

WhatsApp the photos to +65 8561 0630.

Nothing in the catalogue is a lightbox. These rows are the neighbours.

Anything not in that table is quote on inspection.

WhatsApp the photos to +65 8561 0630. The reply uses a band already printed on HomeySG, or it says quote on inspection.

• Shop signage index
• LED and driver repair
• LED flex and neon
• Drivers and substrates
• Licensed electrician
• Mall night access

This page mounts a lightbox that already exists. Making the frame is quote on inspection on the fabrication page. A mall overnight slot is one hardware fix, not a new tray.

• Sign frames and lightbox trays