Final payment needs to done on the day of the install once install is complete. Any change may cause the prices to go up or down. If you have any questions please feel free to contact us at 904-524-8039. Trip Charges apply to any Property over 45 miles @ $150 each way. Any Refund or Change in Material after Deposit is made will be subject to a restock fee of 20% and any other charges our Company occured.