How much you charge for disinfecting depends on your expertise when delivering the services. That said, take the following factors into account when setting the budget. 

1. Labor costs
2. Size of the home/commercial property you’ve been assigned to clean
3. Overheads such as transportation
4. The condition of the property you’ve been assigned to disinfect
5. Location of the place
6. The demand for your services in the local region
7. Type of cleaning services that you’re providing. 
8. How often do you need to clean to disinfect a place properly

Consider the above and start crafting a budget that is fair to your clients and profitable to you.