We had our hot water heater replaced when white flakes started coming out and clogging up our sinks and shower head.
We actually had never used this site before and were not going to call this company due to another review but Fast was the only one able to come out same day.
At first we were a little surprised at total cost, so we actually sent them away and took an estimate and had two other companies come out over the next two days (we stayed at my mom's for a night while the water was out...).
After the other two companies came out we actually decided to go BACK to Fast. Cost was in line with the other guys and they were more professional. We also thought they would do a safer installation.
Since we took a two days to get this done - we did some web research (that's how we found this site...) and learned that there are more unintentional injuries and deaths every year due to water heaters than any other home appliance. We have three small children and I wanted to be sure the work was done correctly.
This company's technician was very professional. They did all of the work up to current code, pulled a permit for us. We did install straps and we also installed a little tank on top of the heater to be up to code.
I'm sure you can get it done cheaper but given the safety issues - I wanted professional. And, based on the three companies we saw, cost was more or less in line.