Fill out a time card every day with time you go to work till you are off. My starts when I arrive at office in morning then return to office at end of work day.
Make sure that your proposal states this clearly. Be sure to let them know that time spent on something else will not be charged for and document every thing.
I do not do T&M with a not to exceed. It leads to too many arguements.
If they want to supply material add 10-15% to your labor rate. Also be sure that they understand that 2 men @ 40 hours per week = 80 man hours charged for each week. Also overtime and weekend work are charged for at premium rate.


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