A large supercenter locally, with national offices in Bentonville Arkansas, wants me to now bid the entire landscape contract, everything from lawn mowing to fertilizing, to landscape repair to irrigation. I've got a guy subbing out the start up and shut down, but I'm also responsible for any "minor" repairs. Here's the situation. It's 21 zones with approx 110 heads. My sub is going to charge $800 to shut it down and start it up. I'm charging the store $1000 for my time and effort. Here's my question, I'm now responsible for "minor" repairs. I figure $50 per head replacement, but how many heads are going to go bad?? 10 per year?? 20?? 50?? I'm figuring an extra $1000 on top of the $1000 to start the system and shut it down. Am I even in the ballpark?? Minor is head replacement and adjustment. Anything beyond that is time and materials. The manager flipped when she got the quote and it was over double of what they have paid in any of the last 8 years that I've done the store. Again, it's the first year that they've wanted it bid out, strictly by the line items that the corporate office wants. Thanks.