1 Higher end doors that are taller than 12 feet can cost upwards of $3,000. 2  To have a contractor install the sliding door, the installation prices alone can cost anywhere from $500 to $1,500. Another factor that is needed to be considered for the price of the item is the quality of the door as well as the thickness of the glass. 2  Sliding doors consist of several parts that need to be installed in the house. 3  On average, plan on spending anywhere from $500 to as much as $3,000 for the door itself.
provision. An article, clause, or stipulation in an agreement, contract, deed, instrument, or statute that explains a specific condition, effect, implication, qualification, or requirement. See also proviso.
There should also always be a section in the contract that states that the lack of insurance does not. negate the contractorâs obligations under the contract, such as âThese Indemnification provisions. are independent of and shall not in any way be limited by the Insurance requirements of this. agreement.