I gave a client a flat rate for a full engine rebuild and they tried to add a whole new transmission swap to the job.
Last month, a guy came in with a 2005 Silverado needing a full rebuild on the 5.3L. We agreed on a flat price of $4,800 for the whole job, parts and labor. Halfway through, after I'd already torn the engine down, he calls and says, 'Since you're in there, can you just drop in a new transmission too? I'll pay for the part.' He thought it would be a simple add-on, not understanding that it's a totally different, huge job that needs its own time and quote. I had to stop everything and explain the scope of work all over again, which put me a full day behind. It taught me to be super clear about what 'included' means before I even turn a wrench. How do you guys handle it when a client tries to change the deal after you've started?