If windshield repair the source of the noise is the heat shield all you have to do now is to tighten it up. Turn off the engine first then go underneath the car. With your good old screwdriver, tighten all the bolts connected to the heat shield and I mean, every single bolt. While you are already down there, check if the heat shield has been twisted or curved. You can fix a bent heat shield through a pair of pliers or a screwdriver. Pull the heat shield away from the spot where it makes contact with the exhaust pipe.
Those who want to save time and money may choose to repair small blemishes on their own using a repair kit. These can be purchased at any auto parts store or ordered online. In the kit you will find the epoxy resin and the tools to apply this. Care needs to be taken when using these, and the outdoor conditions must be warm and dry. After the repair is done the windshield will need to be able to cure in the sunlight for a few hours before maximum strength is achieved.
The first lesson you must learn is critical to your success. Marketing done right does not cost you money, it makes you money. If you were to do a poll of windshield repair techs asking them how much they spend on their marketing, you'd find that most of them would laugh and say zero. They'd be proud of that. They'd brag how they wouldn't waste their money on marketing. They say word-of-mouth and knocking on doors is their marketing plan.
Now have fix auto glass repair a look at the fins on the coils. In case of any flattened or bent fins, run a fin comb to straighten the fins. The fin comb can be bought from any appliance store. Make sure to be very gentle with the fins, as the fins are very delicate.
There are various ways in which the glass can be damaged. The windshield is made and kept under high stressed areas when fitted. Plus it has very high density. Because of this, even a small crack poses high danger for the glass. Ignorance of even a minor vein in the glass leads to damage.
In addition, a solid core fire rated door is required between the living space and the attached garage. I will elaborate more on the fire door requirements below.
I want to congratulate you on your decision to start a windshield repair business. It can be a fun journey and profitable experience with the right guidance.