5 Things to Check Before Approving Your Custom Sign Design Proof
Once the design proof is signed off, the fabrication starts. Here's the quick pre-flight checklist we wish every client ran through before hitting approve.
At IlluminateSigns, once you approve the design proof, fabrication starts that week. Aluminium gets cut, acrylic gets routed, LEDs get sourced. Changes after approval are almost always changes to physical stock, which means rework costs and schedule slip.
So the approval step matters. Here are the five things we see clients miss most often — the ones that would have been free changes pre-approval but became paid rebuilds after.
1. Check the spelling, then check it again
Sounds obvious. It's the single most common cause of rework we see. The apostrophe in "Joe's Bar," the hyphen in a double-barrelled name, a capital letter on "The" that should or shouldn't be there — every one of those has been caught at install day on a finished sign, and every one of them is a rebuild.
Do this: read the proof out loud. Have someone who wasn't in the design meeting read it too. Check against the exact spelling on your incorporation paperwork or website footer — don't trust the version in your head.
2. Verify the dimensions against your actual wall
The proof shows the sign at a drawn scale. The dimensions are listed — width, height, letter height — but it's on a white background, not your wall. Print the proof at 1:1 scale if possible (most print shops can do an A0 plot of a sign proof for ~$20), tape it to the intended wall, stand across the street and look at it.
What to notice: does it look too small for the wall? Too big and crowded? Is there enough clearance from windows, gutters, or architectural trim? A sign that's visually correct on the proof can be too small once it's up on a 6 m shopfront — because the reference points on the wall change the perceived scale.
3. Confirm the colour — specifically which colour reference
"Red" on screen is not the "red" that comes off our fabrication line, and neither is identical to the red of a Pantone swatch book under shop lighting. There are at least four different versions of any given colour in play: the RGB shown on your monitor, the hex value in the brand guidelines, the Pantone spot colour we match to, and the final painted/acrylic finish.
Do this: ask the designer (us, or your own) which specific Pantone or RAL code the proof is matching. If your brand guidelines don't specify one, pick one before you approve. The difference between PMS 186 and PMS 200 is subtle on screen and obvious on a 2-metre sign.
4. Check what happens at night *and* during the day
Illuminated signs have two appearances — powered on and powered off. Most design proofs show the powered-on version (the glowing, dramatic one). The powered-off version is what your customers see every morning, every afternoon when it's still bright outside, and any time the power fails.
Ask for both renders. The daytime render matters a lot for backlit / halo-lit signs because the letters themselves carry your brand during the day, not the halo. The night render matters for front-lit signs because the face colour and brightness at night can look different from the face colour unlit.
5. Confirm the mounting method and power feed location
This is the one clients forget because it's the least visually exciting. The proof shows the sign; it does not usually show how the sign attaches to the wall or where the power enters.
- Flush mount or stand-off? Halo-lit signs need a 25–40 mm stand-off to work; flush mount kills the halo.
- Power entry point. Is the cable coming in from the top, side, or behind? This affects whether the electrician needs to core-drill the wall.
- Drilling into the substrate. Is the wall masonry, render-over-masonry, cladding, or glass? Each needs a different fixing and some need back-of-wall reinforcement.
- Where the driver lives. For larger signs, the LED driver is a separate box that typically mounts out of sight inside the building. Where is it going? Does the electrician have access?
Most of these answers should be on the proof or in the accompanying drawing. If they aren't, ask — and add them to the proof as written notes before you approve. That way there's a record if install day turns out different from what was discussed.
Finally: take your time
We'd rather spend an extra three days on proof revision than one hour on install-day rework. If anything in the proof feels off, flag it. A good sign maker will revise the proof for you without quibbling — because the alternative is a fabrication rebuild we both want to avoid.
Still early in the quoting stage? Start with a brief or see our backlit and front-and-back-lit pages for examples of finished installs at different price points.
