I’m in a 100 year old landmarked apartment with very drafty old windows. Two experts on landmark buildings have suggested what appear to me to be widely alternative approaches.
One wants to strip the present windows, rebuild and reglaze them with one layer of glass and add more functional hardware.
The other wants to replace them entirely using new mahogany; mortise and tenon construction; 3/4 inch insulated low E argon glazing; and top of the line hardware.
Any thoughts on what is really needed to be architecturally appropriate AND warm and secure on cold winter nights?
Whatever we do will have to pass landmark inspection (unless it is deemed to be a mere repair).