markup
markup
You have to mark up large and small jobs, i think of my self as a not to bad of a guess-to-mater on the small type jobs I do. BUT , if you dont crawl in ever hole, attic or lift out every ceiling tile.. check soil compaction... you have to estimate.
Part of estimating is missing things that cant be seen...." wow i only need threadless rigid connector to make this work"..yeah 32 bucks later it works. none of us are perfect ... material cost change change rapidly.... not to mention wire cost. The risk are even higher the bigger the job. You are not the perfect estimator so you have to be able to cover real cost and on the jobs you hit right on the nose... its a bonus !