How long do I need to wait after facelift to get skin treatments like peels, microdermabrasion etc.?

Although the procedures you mentioned can be safely performed 4 weeks after a facelift there are other procedures (lasers, micro-needling, etc) that are best delayed until there has been more solid healing.  A lot also depends on the type of facelift that was performed.  Always check with your surgeon before making a decision to undergo any of these treatments within the first 6-12 weeks after surgery.

I generally advise waiting 4-6 weeks following facelift surgery to perform resurfacing procedures. Superficial procedures like microdermabrasion can probably be performed earlier, but this is a question that should be directed to your surgeon. Good luck!