Contractor and l live is separate states, price for a simple list of five items was stated by text. Is that legally binding

When I flew down I noticed they had added a retainer wall around gravel. I did not request this. That was an extra $1098. They had been to the home prior and had picked up the keys before starting the job. At no time was I told that the price that was stated was not adequate and required a revision. At the end, the cost was five times the stated. The work done did not match what I asked for. I stated painting the house including closets and doors. They then said that doors are not included in their touch up even though it is on the list. I made one offer they countered with another inflated price and now threatening to file a mechanics lien. Can I lose my home as a result of this? Since we are in different states would the texts and emails be legally binding? My list was specific and numbered their text was a specific response to the list, I asked if that was for labor it was confirmed. They even stated if they completed in less than 8 hours it would be less.