For replacing the glass, it has to be figured first how it will be taken out. Even though it is shattered into countless pieces, the glass would have to be removed from the edges before installing a new one. For a door glass, the door panel has to be removed to access the mechanism that moves the window up and down. The glass is attached below. The car auto glass repair and rear window glass requires the trim and the rubber gasket to be removed. The rubber gasket has to be replaced with a new one as the new one is installed. The car manual will be of help for removing and replacing the glass.
You're also competing against the big boys out there... The safelite's and other big companies who seem to have an unlimited advertising budget. Some getting into this industry become intimidated by the big boys and their big advertising budgets. But you don't have to be concerned about that if you market your business correctly.
If the chip is smaller than a quarter and the crack is less than 12 inches long, they would most likely provide service to you at the convenience of your home. The repair kit they will be bringing will contain several materials, tools and equipment. This would include a windshield repair bridge that is self-leveling and is able to reach anywhere on the windshield together with the injector. A crack expander that slides easily and reaches low on the windshield. An A.C. powered ultraviolet curing lamp and a 15 watt, 22 inches bulb for curing long cracks. A drill if the chip needs to be cleaned. A curing film that enhances the ultraviolet rays for faster and complete curing, a UV protected syringes designed to protect the resin from the sun's ultra violet rays, the resin and some other stuff.
Heat in fix auto glass repair summer can also be bad for an older battery. A typical battery lives about 3.5 years. It's probably time to replace yours if it's nearing that age, or older. It's a good idea to have a mechanic check the battery and cables to make sure the car starts quickly and reliably.
The bottom line is you don't want to be caught by law enforcement with a cracked windshield. You also don't want to be seen by your friends, riding around in a car with a broken windshield. Not only is the citation costly, you may never be able to live down the embarrassment that you feel every time see you in your car before you have gotten it fixed. Spare yourself the trouble and get that window fixed as soon as possible. You don't want that small blemish to become a bigger blemish that can cause injury to you and your friends.
Next, take a look at your windshield. If it is cracked, chipped or broken in any way you are really compromising the safety of your vehicle on the road. The windshield of your vehicle is meant to protect you and your passengers from any debris on the road that could potentially enter your car. If your vehicles windshield is cracked or chipped it is weaken as the days go by and will not be as much as a protection as it could be harm. That one little crack could shatter with the smallest contact with debris and send glass shooting into your car. It is important that you get your windshield repaired as soon as you can to avoid replacement and worse injury to passengers and yourself. Some auto body shops will even come to you to fix this repair.
Windshield repair or replacement is totally depending upon the size and location of the damage and cracks. So, before going for any of these options just consult a glass specialist who can examine your shield and suggest if a repair will work or not. If damage from an accident is quite big then do not compromise your life, as you know better that windshield replacement is a necessity. Just bear in mind that your life is more valuable than anything else.