The association started out great with this company I had them come out for a reversal of the hot and cold water in my master bath and kitchen. This was covered under my home warranty and the plumber was courteous and punctual, he was not able to resolve the issue with the master bath and had to send another plumber out at a later date. This is the start of the downward spiral. The next plumber was an hour late, I can understand some jobs run over. He didn't want to do the entire job which included changing the faucet in the shower, and while fixing the hot and cold reversal situation a pipe broke when he turned the water back on. Mind you the water valve is in the basement and the pipe was on the second floor. By the time he got back to the master closet the carpet was soaked in the closet. I can understand something like this happening but once he repaired it instead of asking me to watch for another leak when he turned the water on he repeated the process and you guessed it there was another leak. Fortunately I was leaving just after this repair for two weeks so I was able to run a fan on my carpet for two weeks straight to dry it out. Even after all of this I still had Pat the owner come out to bid running a gas line to our kitchen and to our shop building. Pat is a very personable guy and gives a good sales pitch. I hired him to install the lines and a heater in our shop building, the bid was $2600. The reason that I have given this review a C is because of the installers that worked on the gas lines, they were professional and hard working. The job ended up being larger than they anticipated and had to come back a second day but they were there when the office said they would be there and again very professional and aware that they were in someones home. These installers I give an A+. Back to the master bath issue the first installer never completed the job of installing the new mixing valve and installing the new faucet. The office sent out a "New" person, I know this because he told me this was his second week. He came out 6 hours late, he did call and say he would be late. He assessed the situation cut holes in the ceiling of one of my downstairs bedrooms and left the sheetrock and insulation on the tarp that I provided to cover the furniture in the bedroom and said he would have to come back. He did come back was there by 10am and proceeded to cut more holes in the ceiling and do what else I am not sure other than make comments and have opinions that are too rude to repeat here in this review, to say he was unprofessional would not be a strong enough description. By 5pm he called in reinforcements to help him do the job. The installer that had put the gas lines in came to bail him out and actually completed the job that he had been there all day to do in about an hour. The original installer left leaving the sheetrock and insulation mess in the bedroom. A few days later when the installer for the gas lines came back to make some final adjustments, Pat came by to assess the work progress. I showed him the mess left in the bedroom downstairs and the random holes that were made in the ceiling and expressed my displeasure with the installer that had left the mess. Pat didn't appear to be too concerned with the situation. Next job I did mention that I have a home warranty and the furnace which is covered under the home warranty needed to have a drain valve installed so it wasn't draining into my crawl space. The home warranty sent out Knik Heating. The gas line installer came out to repair the furnace and again superior guys very happy with them. The issue with the furnace is that the work was done the end of December and as far as I knew the home warranty had covered the cost. Late January I receive a voicemail about 1:30pm from Knik Heating that I have an outstanding invoice for the heater work. I no more than listen to that voicemail (about 10 min after it was left) and I receive a phone call from my husband saying that he had received a phone call from Knik Heating that we had an outstanding invoice with them and he is wanting to know what is going on. This in itself is annoying that a voicemail is left with me the person that they had dealt with on all of this work and I am not even allowed time to respond before they are calling my husband. All of that I did return the call the next day and was told by the administrative person in the office that I owed $875 on the furnace repair. Of course my response was that I had not received an invoice and that I was under the impression that the home warranty had covered it. I also expressed my displeasure in her leaving me a voicemail and not allowing me time to respond before she is calling my husband and concerning him, who by the way is active duty and is not stationed in Wasilla or Anchorage. I received attitude immediately stating that was procedure when there was an outstanding bill. I asked for an invoice to be sent to me via email so I could see what I was being charged for and she told me that was backwards of how they did business that they didn't create the invoice until after payments were received. I explained to her if she wanted payment she was going to have to provide me with an invoice so I could see what I was paying for. She finally relented to email me an invoice. To put this all in perspective for everyone this conversation took place after $2600 had been paid for gas lines, and after I had them come to clean my duct work which I paid $499. the day the service was provided. I felt this was unreasonable since I had spent so much money with them already they couldn't even provide a discount on the cleaning but that I suppose is beside the point. I received the invoice for the heater repair and called the home warranty company to request why they hadn't paid for the repair and according to the customer service person I spoke to they had never received the billing from Knik Heating. The services were provided and I do pay my bills so I paid the invoice to Knik Heating, but I will never use them again. I apologize for this long review but this is my experience with Knik Heating and shame on me for continuing to give them another chance.