When a crack means the whole windshield has to come out
A crack in the driver's sweep, the arc the wiper clears right in front of your eyes, is the one that cannot wait. It sits exactly where you look through the glass on every drive, and a crack there keeps catching the light and pulling your eye off the road. That is a replacement, not a patch.
Cracks that start at the edge are the other tell. The edge of a windshield is where the glass is bonded to the body, and it is where the stress collects when the car flexes over a rough road or the cabin heats up in the sun. A crack that begins at the edge tends to keep running, so the earlier it is looked at, the more options you have.
The third sign is not in the glass at all. If the moulding has lifted away from the windshield, if you hear wind noise that was not there last month, or if water finds its way onto the floor or the dash, the seal around the glass has let go. The windshield may look perfect and still need to come out and go back in properly.
How the new glass goes in, step by step
The old windshield is cut out and the opening is cleaned back to the pinch weld, the steel lip the glass sits on. Any old urethane is trimmed down to a clean, even base and any rust or damage is dealt with before anything new goes near it. A windshield is only as well held as the surface under its bead, so this is the slow part and it is not rushed.
Primer goes on the pinch weld and on the edge of the new glass, then a fresh urethane bead is laid around the opening in one continuous run. The windshield is lifted into place, centred in the frame and set down onto the bead, and the moulding is seated against it. Then it needs time. One customer timed a window replacement at about 45 minutes, then an hour for the adhesive to dry before driving, and a windshield follows the same idea: the fit is quick, the urethane has its own cure time.
Every windshield replacement is followed by recalibration of the camera behind the mirror, in our own shop, so you do not take a second trip to the dealership. Read how that works on the ADAS recalibration page. We replace glass on any year of any vehicle, from a sedan to a motorhome, and the mobile unit comes out at no extra charge in Oroville and the surrounding area.
After the install: the first day and the camera
Leave the retention tape on the glass. It holds the windshield against the bead while the urethane finishes curing, and peeling it early can shift the moulding. Skip the car wash for the day too, because high pressure water and a fresh bond do not get along.
Look over the moulding when you get home and again in a day or two. It should lie flat and even all the way round. If a corner is lifting, or you hear anything whistle at speed, call (530) 538-8100 and bring it back. We give a warranty on parts and workmanship, ask for details.
Finally, the camera. If your vehicle has a lane departure warning camera, it was re-aimed to manufacturer spec after the glass went in, and it has to stay that way. Anything that changes its angle or position, such as another windshield, a front-end collision, or suspension and alignment work, means it is time for another recalibration.
