It is not that difficult to reattach spring loaded door hinges. You don’t need a professional to do this as all that is required are some tools, a helper and some patience. All you have to do is remove the current hinges of the door one at a time, and then remove the door. At this point, you can either replace the old hinges with the new spring hinges or you can integrate the old hinge leaves attached to the door into new spring hinges. You can do the latter by opening the new spring hinge and sliding the leaves into the top of the new spring hinge. When the replacement hinge is in place, simply reattach the door.