Every homeowner has that moment. You walk past the front steps and notice a crack. Your brain immediately says: "I should fix that before it gets worse."

So you go to the hardware store, grab some repair compound, come home, fill the crack, smooth it over, feel accomplished.

Six weeks later the crack is back. Wider this time. And now there's a new one next to it.

Here's what happened: you fixed a symptom without reading what the crack was actually telling you.

Not every crack needs fixing. Some cracks are cosmetic — they look bad but they're stable and harmless. Some cracks are actively moving, which means something underneath is shifting. Filling a moving crack with rigid compound just gives it something new to break.

Before I touch anything on my property now, I ask three questions:

1. Is there active movement?

Put a piece of tape across the crack. Check it in two weeks. If the tape is torn or stretched, the crack is moving. Red light — patching won't hold.

2. Is water getting in?

After a rain, check if water is pooling in or near the crack. If moisture is getting under the surface, it'll freeze, expand, and break your repair from beneath. That changes what materials you need and whether patching alone is enough.

3. Is the slab structurally compromised?

Push on both sides of the crack. If one side moves independently or the slab is visibly sinking, you're looking at a foundation issue, not a surface issue. No amount of surface compound fixes a slab that's lost its base.

Three green lights = fix it yourself this weekend. The crack is stable, dry underneath, and the slab is solid. A bag of ready-mix repair compound, a margin trowel, a wire brush, and 30 minutes is all you need.

Any red light = stop. You just saved yourself from wasting an afternoon and a bag of compound on a repair that would fail within a month.

This is the Green Light / Red Light framework I use for every driveway, patio, walkway, and set of steps on my property. I put the full system into an ebook — including the exact repair sequence, materials list, and guidance for hairline cracks, loose edges, settling slabs, and stable surfaces.

Available here on GreenLight Fixes for anyone who wants to stop guessing and start fixing the right things.