Very respectful, I was literally freezing my system was totally gone and I knew I needed another one it had been in since the house was built in 1990. Top Notch is one of Carrier's recommendations. From the phone call to them to the installation of my new system it was done in 3 days and may had been done sooner but I had to get the funding. The guys that came out explained everything that was going on and were very nice to speak with. They made sure my heat was working. I feel so fortunate to have found them. They were not trying to upsell or give me anything I did not need. They gave me a free estimate and the price was so reasonable. I am very happy with the service I received. It was so nice to be able to trust them. Everyone was so respectful. I will recommend Top Notch for all heating and cooling needs.