No gas

My tenant reported to me that there is a gas leak. A gas line and the meter need to be replaced and relocated. The gas company says that it could take from 4 days to 3 weeks to get the job done, during which time my tenant would not have any hot water or a working dryer. I have offered to do a rent reduction and I’m wondering what would be fair compensation to her for the inconvenience. Thanks for your help.