A janitorial services business requires every bit as much professionalism and planning as any other business. When you encounter potential clients, you need to be able to provide an estimate--a quote for how much money you would require to fulfill a contract job. Rather than looking and guessing, you should efficiently price each job as your profitability and efficiently will be greatly increased by properly estimating each job.
Keep a time log of previous janitorial jobs completed, and include the size of the space cleaned.
Record the cleaning supplies purchased and the amount used on previous jobs.
Review your pricing strategy in your business and marketing plans and find a price that fits into this equation. You need a price that will aid in meeting your business goals and leaves you room for providing discounts as well as a buffer for incidental expenses (more use of product and/or time than expected).
Determine the prices of your competitors. They could be other janitorial services or even the estimated cost of the company hiring a full-time or part-time employed janitorial staff.
Create a questionnaire for clients to enable you to create your most accurate estimates.
Write a concise declarative statement to place on your estimates to explain to clients how you estimate prices. It will help justify and explain both the cost of labor and the cost of cleaning supplies so that clients will not undervalue your services.