Business ProfileforLambs Window Cleaning

I hired Lamb’s window cleaning company for snow clearing services. Aaron ****, the owner and I signed a contract and also had a verbal agreement over the phone prior to signing the contract regarding the areas that needs snow clearing. I paid them on the first of each month as agreed upon. Not a lot of snow this year and in their contract says they will only come out when the snow is 4cm and above. So the 3 times it snowed in November I cleared twice and the one time they came they did not clear all areas that needs clearing. I did not complain and did it myself. Now in December we had a big snow first week and I expected everything to be cleared. They only did the front and side of the house, left the back walkways and the parking lot. I sent an email, left a message and asked to please clear the areas mentioned. They came to do the walkways but not the parking lot. I sent another message, and kindly asked to please clear the lot as soon as possible and told him my concerns about the lot being slippery if it’s left uncleared. Aaron promised it will be cleared. Two days later still not cleared. Aaron promised again and said it will be done. I even made sure no cars on the lot on the day he said his guy will come. Now a week later work still not done. I left messages and when he called me he was making excuses and told me in a condescending way that I was not listening to him why the work is not done. This made me very upset and told him that it’s not my issue if he cannot get his guys to do a proper job. I am a paying customer and I expect things to get done properly and in a timely manner as agreed upon. I told him this conversation is over as his voice is getting louder and he is talking over me not letting me speak. I’m not sure what to do but hire another company to help me with the snow clearing but he already got paid for work that he didn’t even do. He is still responsible for clearing until the end of December. I told him I’m no longer paying beyond that.