I installed a deck for a customer in the spring during the rainy season. The downpours just kept coming. The customer kept getting mad that the deck was getting pushed off and not finished. Fortunately for me I put in the contract that my company will make every effort to please our customers however we will not be held liable for any of these cancellation/change fees, vendor delays or weather delays that should arise during the course of your project.Scheduling and/or payment conflicts will be discussed if needed and noted in a change order.They tried to stiff me for the remaining $600 but their lawyer advised them otherwise due to my contract clarification on weather.I made multiple attempts to accommodate their schedules which eventually the rain let up and I could finish the work.In the end they were happy, just impatient which was not my fault.

From a Business Law point of view, how does this apply to contract concepts? what do you think?