In a word “Yes”, I have never employed or “subbed out” any of my work to a third party. It will always be me.
Obviously this is dependent on the size of the job (and the weather!) but a 50 sq/m job will normally take about 5 working days.
You will pay for the materials on delivery and the balance will be due on completion of the job.
You will be placed on my jobs list and no one ever jumps the queue; I will give you a start date which will be no more than 6 weeks.
I have been doing this type of work for over 20 years. I have been running PLM Services for the last 12 years and have been on the Marshalls Register for over 10 years.