In that case it was money well spent.They are a specialized industry. I know because I used to be a technician. Our hourly rate was $110 an hour two hour minimum. I understand the FLIR cost them money to buy sn I probably paid for it in this one instance. I also know I could not physically do the same job all three of them did in one half day. It would have taken me about three days by myself and a $50 crimper for PEX plus pipe and fittings. I also know I cannot sweat a copper pipe to save my butt. I have tried on multiple occasions and never got it right. Getting on my knees or stomach is another impossible thing. I'd have to call 911 just to get back up.