We have found our "boiler guy".
We called Kris after seeing the great reviews here on Homestars and after receiving an alarming estimate from a large plumbing company. We needed to fix a leaky rad in a recently purchased rental property. We also thought it would be wise to have someone look at the boiler as the property had been neglected for many year.
Kris replaced the rusty supply pipe, replaced a back-flow preventer that was starting to corrode and replaced a questionable pressure relief valve. He did a good job fitting us into his busy schedule and he showed up exactly when he said he would. He was working in a pretty tight space, but he did his work efficiently and he left the place in good shaple.
I am keeping Kris' contact info handy. He is definitely our go-to-guy for future boiler issues.