Charging Contractor holding costs

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Hello,

I am finishing up a flip in the Sacramento area that has been from hell. We finally finished everything inside and began the landscaping. 

My landscape contractor was to do the front and back yard entirely - there was no irrigation or electrical outside at all. 

During our first walk through I told them I wanted sod just off the back patio and stressed that there was a septic system where the sod would be. He said no problem, they’ve done it before. 

When trenching for irrigation, they damaged the septic system significantly. He tried to patch it but I had 4 companies out to determine the amount of damage and was told it would need replaced. This process would take 4-6 weeks at best. 

My question is - can I charge him the holding costs from when he broke the tank to the completion of his work?

This happened on dec 6 and I’m being told the install would be January 25-30 depending on weather. That’s two months worth of hold times where I could have been on the market by the 10th of dec, which we planned for initially. 

Please let me know your thoughts or if I can provide any more information. 

C