Most broken sprinkler heads involve a simple fix that any home owner can do. The temptation might be to call a service that specializes in sprinkler head replacement, but this could cost upwards of $50.00 for a simple repair that anyone can do on their own.  If your pop-up sprinkler has been broken because of a mower, edger, or string trimmer hitting it, the cost will usually be less than $5.00 and only take a few short minutes to replace.