Need some help with a Fertilizer bid

[BROWNS LAWN CARE]

i just started in the business this year and just received an inquiry for fertilizing and weed control. they do their own mowing but are looking to me for the rest. i am not licensed to spray anything so that is out...

1. how should i bid the job? most of it will be done with a riding mower and a pull behind spreader. a small area around the pool in the back will be a push spreader. if i was gonna bid it for mowing, i would bid $50-$60...

2. how many times a year should i fertilize for them? i mentioned 2-4 times and year and they are good with my recommendation. in otherwords, give me the cliff notes version of fertilizing/weed control granular style.

3. what type/brand fertilizer should i be looking to get for a fall application...?

4. do you guys mark up supply costs also?

oh, most of the grass is St. Augustine...



i need all the help i can get on this one as i have never done this except as a homeowner and had no particular regiment or anything...


thanks in advance...