Hi all
In my opinion the 'big guys' do it by pile it high, sell it cheap, it works and gives them a healthy profit overall, their sales techniques are also very sucessful and I believe that their attitude is win 5, lose 2, up by 3, allowing the management charges to be low.
If you have a 20 hour site at £11.00 per hour and pay £6 per hour you are left with £100 per week or £5.00 per hour, you do not have to factor in all of your overheads into this amount as that is shared between all of your sites. You only need to factor direct costs and a % of o/h. Direct costs are likely to be, holiday pay, employers ni (although in the case of most of these jobs it will not be a factor) uniform and P&EL, plant & machinery, chemicals & materials, administration & supervision, you are then left with your profit margin. Holiday (min) £11.54 NI n/a uniform £1.70 (based on three each per yr at £15) P&EL Approx £2.10, plant & machinery £7.69 (based on £400 worth of equipment, remeber this is a cost only in your first yr thereafter maintenance only), chems & materials £8.80 (based on 4% of contract price, but believe me it will be nowhere near this if run properly) supervision £10.00 (0.5 - 1hr per wk), administration £6.60 (3% of contract) total MAXIMUM direct running cost £48.43. % of overheads lets say for arguments sake £450 per week to run business with 30 sites of approx the size above = £15.00. Profit on site £33.43. Not bad at £11.00 per hour if you did have 30 like this it would bring you a profit of approx £1000 per week, so you can see that you could run many more sites at a lesser rate and earn more.
You can use the above calculations on most sites or just lump all hours worked and turnover together and do the math to get a beer mat calculation.
Fox