How Do You Raise Prices Without Losing Loyal Customers?

For recurring cleaning, we have found a 30-day notice works for us- this gives them the opportunity to think it over/find a new company if they’re not okay with it. We do highlight via email the value and importance of our reliability and professionalism and include reasons why. We never raise the cost astronomically (industry standard is 4-10%). We typically only raise rates annually.