We were not getting hot water because of a problem in the mixing valve located at the outlet of the water boiler in the basement. I called up Water Works plumbing who said they would send someone over on Saturday. George from Water Works showed up on time, quickly reviewed the problem and gave me a quote. I gave George the 'go ahead' and he did the entire job very efficiently and reliably. What I really liked about Water Works is that they give an 'upfront' quote that is based on the job to be done, and the quote includes everything (material and labour). I feel this is much better than most other companies, who only give you an 'hourly' rate in their estimate. I would definitely rate Water Works as being very reliable.