without a pic
you dont know if you can use a lift?
You stated that they had to do them themselves and it took between 2-3 hours.
Well i dont know who "they" are or what equipment "they" used or how well "they" did,but 2 hrs. is pretty good time.
Next is overspray. Are the cars going to be way out of the way?
Delays are where the time thing will eat you up.
Also with a lift you need a second guy.
I feel a 72 inc lance and a x-jet could get the job done.[maybe not]
This keep's the same amount of $$ in your pocket [more if you dont need to pay a second person]but lowers the over all cost to the customer.
You did not state the condition of the facia and gutters.
par.pro wash is some what confused.
a building 30 x50 is 160 lin ft not 1500 lin ft.[1500 would be the sq ft of a driveway that he would charge .25 cents a sq ft to wash with his surface cleaner] LOL
the lin. ft is 30x50 plus 30x50 =160 lin ft. x $2.50[3 story]=$400 per building x 37 buildings = $14,800.00
Now if i were hungury for the work and the gutters did'nt need anything special, i would go to $2.00 a lin ft. x 160 lin ft
and get $320 per building x 37 = $11,840
So it works out to be around what par pro wash would charge but i think if you were to write it out my way,showing the $.50 per lin ft discount, you might stand a better chance of getting the work.
Thats $900 per day for 13 days to get this job done and ='s about $100 per hour. Chem,fuel,set-up,breakdown,maybe a helper if you need the lift, you made no mention of WATER supply,special chem for gutters,time wasted for windows not being closed and cars in the way,covering everything brass plated,ect......
So my opinion if everything is the way "i think it is" I would go with $2.00 a lin ft. plus cost of lift if needed. I would prefer to get the $2.50 per sq ft if i needed a ground person and lift.
$12,000.00 if no lift.
Remember that 50 cents per lin ft on this job ='s $3000
If i could just x-jet them,no lift,no helper,easy water,no bull with cars and windows,no special stuff for gutters,if were to get paid at the end of the job[no waitting]and was sure i could get 4 done a day. I would set the price at $10,000 BECAUSE I NEED THE WORK.
Rick,i was busting your chop's.
If you can get $4500 for washing houses that are 30 by 50 i need you as my salesman,ill give you 10 percent. CASH. Make that 20 percent on the books.