Are auto parts store windshield kits worth it?

For a clean, simple bullseye they can help a little, but they often leave air inside. If the chip matters to you, a professional repair is the safer bet, and it avoids making a later repair harder.

Can a pro fix a chip after I used a kit?

Sometimes, if the kit resin didn’t fully cure or didn’t cover the whole chip. Often it can’t be fully redone. Send a photo and we’ll tell you.

Do DIY windshield repair kits work?

Short answer

Sometimes on a small, simple bullseye, but often not well. Store kits use thin resin and a plastic holder that can’t open the break enough to fill it completely, so air stays trapped and the chip can still spread. And once kit resin has cured in the chip, a professional can’t push it back out, so a failed kit repair is harder to fix properly.

101 Windshield Repair · Updated September 30, 2026

How a kit is supposed to work

A kit gives you a small plastic holder that sticks to the glass, a syringe or plunger, a little resin and a curing strip or the sun. The idea is to push resin into the chip, let it harden, and scrape the top flat.

Why they often fall short

Thin resin. Kit resin is made to flow easily, but thin resin is weaker and shrinks more as it cures.
No real pressure or vacuum. A chip is full of tiny legs. Filling them takes repeated cycles of pulling air out and pushing resin in, with the glass gently flexed open. A plastic plunger can’t do that.
Moisture and dirt. Kits don’t include a way to dry the chip or clear debris out of it, and resin won’t bond through water or dirt.
Curing too fast. Curing in direct sun before the chip is full locks the air in.

The real cost of a failed kit

When a kit only seals the top, the chip looks a little better but still has air inside, and it can still crack. Because the kit resin has already hardened, a professional can’t get new resin past it. What could have been a quick repair may no longer be fixable the right way.

Never use super glue or nail polish

Household glues cure almost instantly on the surface and never reach inside the break. They seal the chip shut and block a proper repair for good.

The better move

Put clear tape over the chip to keep it clean, and text us a photo. A professional repair takes about half an hour, usually costs not much more than a kit plus your time, and we come to you.