IT IS A GIVEN I should not have to say that you should go in dressed nicely with some sort automobile windshield chip repair of logo on your shirt or hat that shows you are serious and you are a professional.

Snow and ice: It is important to remove frost, snow, and ice as soon as possible. These elements greatly damage and weaken your windshield. Turn on your cars defroster and use a snow brush or ice scraper. Be gentle with the ice scraper as it too can damage the windshield.
Warranties may not seem important, but they really are when it comes to windshields and fix auto glass. A reputable company will certainly stand behind their work and have no problem guaranteeing that work. Any future incident could be the result of work that was not done well and you want to make sure that you have a recourse that will not have additional costs.
It will be very hard to be successful with your business until you change the way you market. When a potential customer needs a repair done, you want to be the one in the crowd waving the big red flag. You want to stand out. To do so you have to give them a compelling reason to call you instead of Joe's windshield repair.
Stay away from the sun. Park inside a garage when you can and use a protective windshield covering when you can't. If you let heat build up inside the car while you park, you might weaken the windshield and cause the crack to grow.
But the best way to fix a leak is completely removing the glass and shooting a new seal. This is the only way to truly see what is happening. If the glass is removed a technician can 100% fix the underlying issue. This option may require the purchase of a new molding. Also your auto glass company will most likely require you to purchase a new glass if the old glass breaks upon removal.