I OFFER 3 DIFFERENT LEVELS OF EDITING: LIGHT, BASIC, AND DETAILED.
The level of editing you choose for your writing will vary depending on your purpose and your budget.
Light editing covers the very basics: typing errors, spelling, punctuation, and word usage.
Basic editing goes a step beyond light editing to include: syntax, coherence, style/consistency, and overall organization.
Detailed editing takes an even deeper look into your writing and involves everything that light and basic editing covers, plus: accuracy, sectional organization, and any necessary rewriting or elaboration.
(This article gives some idea of the distinction between these different elements.)