Its important to note that the automobile windshield chip repair exterior trim and moldings that we can see on the outside of the glass are for looks only. The actual water seal comes from the "urethane" adhesive which is used to create the bond. Its in this urethane that the water leak is originating.
If you have a leak it's very frustrating. But spending thousands of dollars on interior pieces or your electrical system will make you even more frustrated. You need to call your auto glass company and have it fixed immediately.
If you do decide that windshield replacement is your best bet, you have a few choices. First of all, make sure you check to see if your insurance covers it. In a lot of instances it does. The problem is that many policies have a deductible that is higher than the cost of the replacement or repair job. If that is the case, you will have to pay for it yourself.
The secret to doing a lot of repairs is knowing where and how to contact people. Mostly it is a function of letting them know you there and able to do the repair. Problem is most people wake up thinking about how to find someone who needs windshield repair.
One more thing to consider is the amount of things we can see through the windshield. If there is a difficulty in the driver's vision then it is common sense that there will be a higher risk of accident. Windshield plays a vital role in ensuring the driver's clear vision of the road. With that being said it answered the question why is it important to repair the windshield. It is very easy to find someone who can repair the windshield. All of whom are very competitive and knowledgeable so you don't have to worry.
One way to find out about a companies reputation is to call other repair techs and ask them which company they bought their repair kit from and are they satisfied with it. Call the company itself and ask to speak to the owner. You will get a good feel for the company after having spoken with the customer service people and the owner.