Swapping an opener isn't the same job as replacing a spring, but it's not a weekend bolt-together either. The part most DIYers get wrong is sensor alignment - two sensors that have to sit at the same height and aim dead level at each other, or the opener won't close the door at all. On a house from around 1988, the bigger risk is the header bracket work we mentioned above; working overhead near an old spring under tension is where injuries happen on this job, not the wiring. If you want the general rundown of how we handle opener installs across the service area, that's on our opener installation page for Grand Haven. For everything else we handle on garage doors in this town, see our Coopersville page. Our honest take: if your current opener is just loud but still reverses properly on contact, it may be worth waiting rather than replacing it early - a working safety reversal is the one thing you don't want to lose by jumping the gun.