Military plus seven years experience--now you can consider yourself educated and skilled labor. Charge about the same as your mechanic. --say around 75 per hour. More if you have to sweat. Your barber probably stays cool and makes a dollar a minute--and his "mower" costs less. And cover your expenses and overhead. Suppose you billed for 5000 hours last year. And your overhead was $10,000; then you have to charge $2 per hour for overhead. Likewise, suppose your equipment payments, repairs and fuel cost about $10,000 per year, add $2 more. Truck costs--likewise. Suppose your labor "burden" costs $5000 per year Fica tax, med insurance, benefits, add $1 more. Add your cost last year for callbacks, retreatments and loss due to slow or non-payment. Then reward yourself for the risk of being in business--you are entitled to earn a salary for your labor plus profit on your business investment.