Dishwasher Installation Issues

[Tarun Mitra]

Hello Fellow Investors,

Help me understand if I got ripped off by this company and how I can do this better in future. My tenant faced issues with dishwasher and I sent a repairman, who checked the dishwasher and told me that motor had issue and it is better to buy a new one then to fix this one as it would cost me $900. 
I thought ok let’s buy a new one, I ordered a new dishwasher from Costco and paid for installation as well. Costco uses third party for installation. It was Transmotion. They were horrible. They did not install my dishwasher. They visited three times and went back. There was an issue with 2 way valve. I felt like they were trying to find reasons to not install the dishwasher. I called Costco and asked them to refund my installation money and they did refund and it was around $300.

Now I have to get the dishwasher installed so my property manager recommended a plumbing company with high ratings. They are called At Your Service Plumbing in Tacoma Washington area. It is small business according to them. Before scheduling I asked the person that do they have any estimation as to what would be the installation cost. They kept insisting, they don’t know and they can only know when the plumber is onsite. I asked them multiple times but they didn’t mention anything. So, I ended up scheduling the visit. 
On the day of the visit, the plumber quoted a ridiculously high price(higher than national avg) just for uninstalling the old one and installing the new one. Here is the price for uninstalling the old one and installing the new one is 1060 and then fixing the two way valve leak was 942. I totally got blindsided because the plumber said this is a standard price for them. He even opened a booklet to show me the pricing. My question was if this is a standard and it does not change why couldn’t the person told me this earlier. Btw, this plumber was a certified plumber and the son in law of the business owner. 
Charging ridiculously high price is not an issue if you think you are worth that but customer also has the right to chose weather we want that high price kind of service. Letting me know beforehand about the minimum atleast gives me a choice.
I know there could be more leaks or damages that can increase the cost and hence they say they can quote at the site but not letting the me know even the minimum is bad when you know the job is to install the dishwasher. 
I could have said no when they quoted the price but costco already made three visits and  my tenant was without dishwasher for over a month now and hence I said yes with lots of disdain. Now my questions are

1. Do you guys think the prices for just uninstalling and installing was way too high and I got ripped off?

2. How do I do this better in future?
3. Should I have sent them back even if my tenant didn’t have dishwasher for over a month? I mean I could have rescheduled a different one but I didn’t know how long will it take.

I cannot shake this nasty ripped off feeling.