First off, we're called elevator mechanics not techs. Techs is what not elevator men say.
Secondly. What you said about your uncle, unheard of in the last ten years. There is a huge shortage of manpower in this trade and every company is desperate to hire mechanics. Very very good job security. Took zero reduction in hours or pay through covid. We are "essential employees" and due to the physical aspect of our job will never be replaced by robots or AI. Very high possibility your uncles not good. The only guys having a hard time are the ones with showing up on time problems or can't do their job problems.
Do not fall into the union only trap. Yes the unions good. Has lots of benefits. But drawbacks as well. Around here (virginia) most union companies, especially the big 4, have a reputation for ridiculous on call callbacks. Basically spending your weekend running calls when its your weekend to be on call. Its also harder to get started as an apprentice. If you can find a non union shop to work for that is going to put you in the CET program (4 year schooling/apprenticeship program) your good. Once your a mechanic going union if you want is easy. The union is always looking to steal mechanics from no union shops to hurt them and help themselves. Think of us as the NFL. Im under no long contract. A different team makes a better offer its common for mechanics to go wear a different companies shirt.
Also some benefits you might find at non union companies. I work 4 tens and am off 3 days a week and all of my travel time is paid both ways. From time I leave my driveway to time I get home is 10 hours. Sure union has better health insurance but id be loosing so much time from my family driving and working more. You have to decide what's best. Maybe decide where you can get a job quickest to start and switch companies later. Sitting on the union waiting list for 2 years ain't helping you. But if you can get right in thats great. I've also seen the union hall from DC poach multiple apprentices from non union shops.
I typically work 40-42 hours a week. Off every weekend. On call every 7th weekend. I never work overtime doing maintenance or any of that crap. This trade you can work 40 or a little over if you want. Or work yourself to death volunteering for stuff extra. I personally would not even humor being asked to work on a weekend or overtime maintenance etc. Just me, i value my timr with family alot. To me this job funds my life, it is not my life. Tons of opportunities though.
You must be your own advocate and decide if you want to be an overtime whore or have respect for yourself and tell the office no im not taking that call, my days over. Every company will push for more if you let them. Its the nature of an office.
