The frequency of your dreadlock maintenance will vary based on the method being used and how clean and professional you want your dreadlocks to look.
For our method, the crochet method, we typically see our clients every 2 or 3 months which is also what we recommend.
For those looking to keep the cleanest and most professional looking dreadlocks once per month is optional, however we recommend no more frequently than that. Alternatively, some of our clients only see us once or twice per year just to make sure their roots stay separated. The frequency of your dreadlock maintenance is mainly a matter of personal preference to you.