Wells, Sump Pumps and Septic Sewage Systems - Updating below grade well

Hi, this is my first time posting in this forum, but a long time reader. The house I’ve owned for over 13 years in central New Jersey was built probably before 1900. My well is about 5 ft from the foundation wall and buried below ground, maybe 65 inches (thats what's marked on the foundation wall where the pipes come out). I have a deep well jet pump with 2 flexible plastic pipes and bladder tank in my cellar. There’s plenty of water in the well, but there’s a leak in the suction pipe below ground where I would lose pressure and get air in the line.

It’s about time I had this well updated and a new submersible pump and new piping installed.

I know I have to hire a well driller to dig out the well head and install a well casing extension and pitless adapter (which can only be done by a licensed Well Driller according to NJ DEP). My question:
Is the well driller the same guy that would also drop a new submersible pump and run piping and electrical to the house or do I have to hire someone else (i.e.: plumber, electrician)?

The driller will most likely be able to drop the pump, plumbing and wiring for you. You will probably need an electrician to install the proper breaker and cable to the location where the pump control is going be located. The new pump will likely use 240 volts where old one use 120 volts probably.