K
Kevspark
As mentioned above work out your hourly rate based on your overheads and what you need to break even then add the materials cost with a small markup of say 10% and overall don't forget to add another percentage for your profit to grow the business like 10% or something e.g. hourly rate + Materials (and markup) + a growth profit of 10%. See how this works for you, but don't forget your running around to get the materials and travel to the job, include this time in your hourly rate.