Glass removel and seal the Top of the Internal Door

These glass panels are usually found in older type property where the landings are normally quite dark and simply used to allow a little natural light to flow through from the bedrooms , not used in more modern properties as they have no fire resistance value and crack rapidly if a fire takes hold . Not normally very hard to remove , usually a few pinned in beads although some have putty which can be a pain to remove without breaking the glass . The glass is normally rebated and sat in the middle of the frame , the glass can be left in place if preferred and there’s normally enough space to plant a 9mm plywood panel over the glass on both sides , stuck in place with a product call no nails , various other types are out there as it’s only adhesive . This method encapsulates the glass and will I’ve adequate fireproofing as a fire 🔥 would now have 18 mm plus Glass as a fire resistance , probably more than most internal doors unless they are a fire rated door with a smoke seal . Regards rob

It would have been nice to see some pictures, however if it’s an old house you don’t need to change the glass unless you have been doing a makeover which includes an architect, or someone from the council who insists that the glass is removed. You have two options. One, is to change all the doors, or two and that is to ask a good carpenter to come round and to give you his advise and a price to remove all the glass or change the doors. If you go into any door shop you will always see doors with glass in so I am a bit skeptic about the advice your architect gave you unless they are only 2 mm glass which is a no no. Check with your council for further advice.

You could remove the glazing beads from one side, remove the glass panel and replace with an MDF panel then refit the glazing beads.