We have a $400 minimum. Bucket truck, 12" chipper, mini skid, and F550 roll to most jobs. Usually me and two crew members. I already have time looking at it. I use the $400 minimum to prequalify new potential clients. If they aren't willing to spent $400 on their trees, they aren't our clientele. Driving across town with all the equipment costs the same weather we are there for 30 minutes of 5 hours. We still usually dump the trucks if they are more than 1/4 full when we get back to our lot as we want a full chip box worth on the next large removal. If you include all the above mentioned time plus the paperwork and book keeping entry time it really ads up even on small jobs. It still takes just as long to go by the bank with a $400 check as it does a $4000 check. Seems like small jobs are where I always hit something with a chainsaw and ruin the chain as well. Got to also look at the opportunity costs. If I'm running around all over the place doing small jobs, am I going to loose out on that big removal that pays well?
Now if I'm next door and the neighbor wants two quick limbs trimmed, I'm not generally going to charge the minimum as almost all that overhead is already covered. Good client needs a little 15 minute something and is willing to wait until I'm in the area, no minimum.