How much would you all charge for dethatching a 9,300 square foot lot that has around 7,000 square feet of turf it costs us $12.00 dollars an hour to rent minuimum 2 hours usually it takes me 2-3 hrs do dethatch a lawn this size. The few times I have done it. We where thinking around $150.00 what do you all think. To high to low. W hat would you charge for similar job? All replies greatly appreciated.