Plumbing Dunn Right

Three plumbers from Dunn Right, including the owner, visited and installed 3 hammer arrestors at a cost of $340, which didn't correct the issue. A written $1500 estimate was then provided for more arrestors and a PRV. Mention of replacing my copper pipes with PEX at an approx cost $8000 was also presented (verbal, not written).
Ultimately the issue was resolved by another local plumber in less than 10 mins with a free part under warranty from Delta. Also, two of the arrestors installed by Dunn Right needed to be removed as they were placed in inaccessible locations. I could have easily spent thousands with Dunn Right unnecessarily so would not recommend this company for any type of plumbing service.