The door jamb and molding are now too short.
New flooring door jamb and trim too short.
Either way i think if your floor contractor did not take care to make clean flush jamb cuts then the expense of fixing it will keep it from happenig to the next guy and will train another floor contractor to not.
While in the process of installing laminate flooring i undercut one of the door frames too high.
If the painter can t then pehaps making them hire a good trim carpenter to replace your moulding and then a good painter to paint it.
Pull the casing and plinths both sides.
My question can the jamb somehow be repaired.
Cut the the nails holding the door s jambs to framing using a sawzall with a fine tooth metal cutting blade.
Door jamb molding i m pretty sure i am going to replace the molding anyways to a more modern style.
When cutting the door trim you can take a piece of scrap flooring hold it in from of the trim and let the saw blade sit on top of it while you cut.
Repair anything that s revealed at the top from lowering the head casing.
I ve recently replaced carpet with hardwood floor.
You simply describe the gap take a picture of it or.
This helps keep the cut at the perfect height.
Gaps between door casing and laminate flooring are common and manufacturers have designed a wide variety of special pieces for this purpose.
Have the door closed while doing that reset the door with jamb tight to flooring reinstall casing and plinths.