Broken Storefront Glass: Emergency Board-Up to Replacement, Step by Step

Glass on the sidewalk changes the order of everything. A broken storefront — break-in, vehicle strike, vandalism, a crack that finally let go overnight — is a security problem first and a glass problem second. The store is open to the street, and every decision in the first hour either protects the business or makes the next week harder. We get these calls at 2 PM and at 2 AM, and the jobs that go smoothly all follow the same sequence. Here it is, step by step.

Step 1: The first hour — safety, police, and photos

Keep people away from the opening. Tempered glass breaks into small cubes, but there is almost always a mix — broken edges still in the frame, pieces hanging, loose glass underfoot. Do not let employees pull remaining pieces out by hand; what is left in the frame is evidence of what the glass was, and it matters in Step 3.

If it was a break-in or a vehicle strike, file the police report before anything moves, and photograph everything: the opening, the frame, the lock and door hardware, both sides. Your insurer and landlord will both want those photos. Then call a glazing company that does its own board-ups — not a board-up-only service that has never glazed a storefront — because the crew securing the opening should be the same crew that measures it.

Step 2: The board-up — done like a temporary wall, not a patch

A proper board-up is a temporary wall, built to be secure, weather-tight, and removable without damaging the frame it protects. That means:

• Clear the opening safely. Loose and hanging glass comes out with the right tools and gloves, the frame channel is checked, and the area inside and out is swept so nobody tracks glass through the store.
• Full-coverage boards, properly fastened. Plywood or OSB cut to cover the full opening and secured to the framing or masonry — not screwed through your storefront frame wherever it happened to land. Screws through aluminum storefront metal create holes you will see every day after the new glass goes in.
• The door still has to work. If the broken lite is beside a working door, the board-up has to preserve a safe, code-sensible way in and out. If the door glass itself is broken, the door gets secured and the business needs a realistic conversation about operating hours until the replacement.
• Weather matters. An overnight board-up before rain needs seams sealed, not just boards hung. Water through a storefront opening damages flooring and merchandise fast.

A board-up that leaks, rattles, or was fastened through the frame is not a bargain — it is the first cost of doing the job twice. This is the emergency end of the storefront and curtain wall work we do every week.

Step 3: Measure and identify — while the boards are still up

This step decides your timeline, and it should happen at the board-up visit, not days later. Storefront glass is almost never a stock item. The glazier needs the exact opening size, the thickness, and — most important — what the glass actually was. Most modern storefronts are 1-inch insulated units or 1/4-inch tempered or laminated safety glass, and codes require safety glazing in storefront locations, so the replacement has to match the specification, not just the size. Tint, low-E coatings, and laminated interlayers get identified now, because a clear replacement in a bronze-tinted storefront is a mismatch you will stare at for years.

The frame gets inspected at the same visit. A vehicle strike or forced entry often bends framing or damages the door, closer, and lock along with the glass. Ordering glass for a bent frame without flagging the repair is how a one-week job becomes three weeks with the boards still up. If the door hardware took damage too, this is when you find out — the same kind of inspection we described in our guide to storefront door closer problems.

Step 4: Fabrication — the honest timeline

Once measured, storefront glass is fabricated to order — cut, then tempered, laminated, or built into an insulated unit. Glass cannot be cut after tempering, which is why the measurement in Step 3 has to be right the first time. A straightforward tempered lite is the fastest turnaround; a large insulated unit or a tint or coating match takes longer. Any glazier who promises a custom unit tomorrow is guessing — what you want is a real fabrication date, a board-up that can hold comfortably until then, and a call if the date moves.

Step 5: Installation day — boards down, glass in, store open

On install day the boards come down, the frame channel is cleaned and inspected once more, and the new unit is set on proper setting blocks with new seals where the old ones were damaged. The door gets checked for swing, latch, and closer action — an impact that breaks glass often knocks a door out of adjustment even when it looks fine. The site should be left cleaner than the emergency left it: no glass in the planters, no screws in the parking lot. Then walk it with the owner or manager, check the match against the neighboring lites in daylight, and get the documentation your insurer asked for at Step 1.

What this means for your business

The total downtime is rarely decided by the install — that takes hours. It is decided by how fast the opening was secured, whether the glass was measured and identified at that first visit, and whether frame damage was caught before fabrication started. One call that covers board-up, measurement, fabrication, and installation — one company accountable for the whole chain — is what shortens it. If you manage retail space in Los Angeles, save our number before you need it; property managers and GCs building an emergency call list can see how we work on our commercial page.