Mounting a garage door opener yourself is doable if the header is solid and the door is already in good working order. Where people get hurt, or end up calling us anyway, is wiring the safety reversal system wrong or skipping it altogether because the old unit didn't have one. East Haven's median household income of $86,498 sits below the wider service area's $113,750, which is part of why we carry openers across a range of price points rather than just the premium line, so going DIY to save money isn't the only option if budget is the concern.
Our honest limit: we don't install openers on doors with worn-out springs, cracked panels, or a track that's already out of plumb. Putting a new motor on bad hardware is a waste of the opener. If you're set on doing it yourself, at minimum get the photo-eye sensors level and tested before you walk away from the job, since that's the part most often skipped and the part that actually keeps someone's hand or car out from under the door.