Realigning a safety sensor or tightening a loose bracket is reasonable DIY territory, and plenty of Coopersville homeowners handle that themselves. Replacing a logic board, resetting a motor's internal gear train, or working anywhere near the torsion spring assembly above the opener rail is not - that's where a mistake costs a finger or a trip to urgent care, not just a wasted afternoon.
Here's the honest limit: if your opener is original to a house built in 1988, some replacement boards for that model are no longer made, and we won't pretend we can source a part that doesn't exist. In that case, a universal logic board swap or a full opener replacement is the real answer, and we'll tell you that up front rather than charge for a repair that won't hold.
If you're not sure which side of that line your opener falls on, that's worth a call before you start pulling the cover off. Details on scope and what we handle locally are on the opener repair page for Grand Haven.