I would not recommend Boonstra. I give them credit for always being available and showing up on time; maybe because rarely are they called twice by the same customer. I called to have a/c repaired. It was obviously a freon issue and the leak has to be found otherwise they can't recharge the freon. After a 20 minutes diagnostic and one very long cell phone conversation to "Bob" regarding cell phone apps...long story short, apparently the valves outside were leaking. "We will try to get the valves but it's an old unit so we probably won't be able to find them - here's your bill for $450". Incidentally, during the phone call to "Bob", valves were found!!! Oddly, 12 hours later repair person calls..."the valves we found were gone". Huh? "Sorry, there's nothing we can do except replace the unit but, if you do go with a new unit, they will credit you the $450 repair bill."
Same day I call for someone to give me an estimate for a new unit and he shows up exactly on time. Very nice young man that spent longer than the repair man...hemmmed and hawwwed took vague measurements. Started at $4800 and eventually got down to $3200 all in. (By the way, none of the rebates in their full-page ads applied of course.) I told him I would think about it since I've sold my house and don't really want to spend money for a unit I'm only going to have for another 65 days. He calls me back the next day and leaves a message about a "fix" he might have that I would be very happy with and won't cost nearly as much. He doesn't say what it is however. Yesterday, the unit couldn't be fixed...now it can? Again, huh?
So to shorten the story even more, as of yesterday after contacting a friend of a friend who has been in HVAC for 32 years, I have a working a/c unit with a fixed leak, NOT AT THE VALVES, but behind the condenser which required a 1/4 turn of a wrench, a fully-charged unit and only paid $120!!!
Maybe because I'm female or maybe because they knew I had to have a functioning unit for the new buyer of my home but, they basically robbed me of $450 to give me an incorrect diagnostic AND tell me there was nothing they could do except replace it. Nice business practises.