Bought new home (foreclosure) with radiant floor heat in basement and garage, and forced hot air upstairs all fed by same boiler (hw for house too). Had home inspection but wanted thorough inspection (with report) by specialist as well as explanation of how everything went together and worked. I am decent DIYer and have even done full boiler and zone installs but was not familiar with this setup/system. Dand W had best rating so called them and gave DETAILED description of what I wanted. Was not able to be present for visit but mother could be so was even more specific in what I wanted and stressed desire for thorough report. Instead of sending one guy, as requested, they sent two, at double the hourly rate. Except for faucets and showers and the like, ALL elements of the HVAC and plumbing are contained in ONE very well lit, clean, clear, and dry area of the basement -- essentially a 10x15 room with 2 concrete walls, a cement floor, 12 foot ceilings and overhead lighting. All elements to be inspected were well and thoughtfully layed out and organized, and easily accessible. House is 7yrs old and the installers did a nice job. In all, I doubt that a single knowledgeable professional would have needed much more than 30 minutes to do the inspection requested and certainly not more than an hour. The two gentlemen from Dand W billed for four hours. Each. They mentioned a few things to my mother, who wrote the little they actually told her down. While I was both stunned and unhappy with their bill, I nonetheless played it, in full and on time. It took over 6 weeks of badgering by my wife and I before I was finally e-mailed a very brief note telling me what the cost of repairs would be (from them). It took two lines. There was no detailed inspection report, as promised, there was no explanation of how the system works, of what does what, nothing. Just a couple of lines saying what the cost of repairs would be. If that was all it would still be reason to stay away from these guys, sadly, there's more. This next bit is just going to be barebones. If all they did was miss things or misdiagnose, well, that would still be pretty bad, anything else is for you to conclude. Please keep in mind that the only person at the house at the time was my 68 year old mother. . . They said that the well pressure tank ( 33 gallon bladder type) was broken and needed replacing. I have tested the tank extensively over the past two months, the ONLY problem with the tank was that someone had released all the air. Since being repressurized the tank has been fine. They said the pump pressure switch was bad. The switch had been played with and inappropriately set. No problems since readjustment. They said two mixing valves needed replacing. Both mixing valves had been set to their lowest temp and then and quot;crankedand quot; on hard. A strong grip and a good twist, and both mixing valves are working just fine. They said a few of the pumps in the system leaked and needed to be replaced. The bolts and nuts holding the pumps to the pipes were found to be not even finger tight. A quick, light tightening and all pumps have spilled nary a drop. They said a ball valve was broken a needed replacing. The handle had been unscrewed and moved elsewhere in the room. Fortunately, the screw was left in place. Replaced handle, valve fine. They said there was a problem with the hot water aspect of the system and we should seriously consider having someone come in and fix it. We would probably need to have a good portion replaced because it was either bad or near failing. -- Quick explanation: water is heated by the boiler then stored in a tank. The tank has a thermostat at the very bottom. When the thermostat calls for heat, a pump starts circulating the water from the tank to the boiler and back. -- Thermostat had been turned to absolute lowest possible setting, since turning thermostat up we have never run out of hot water. While I have probably missed something, the simple truth of the situation is that nothing they claimed needed replacing actually did. In several cases the solution was quick and simple, and would likely have been the sort of things a decent professional would have corrected in the course of doing the inspection. At the very least the homeowner would have been informed. I do not know if my experience is unique or what, but based on it and what it cost, I recommend finding a different company.