Professional weatherstripping kits are available from Reddiseals (google them), there are other firms but I have settled on Reddiseals after trying a few others. Generally you need a router to install the weatherstripping on the sash but you can buy the sash and parting bead with the routed groove and weatherstrip in place if you need it that way.
Most people are intimidated by sash windows but they are quite simple elegant designs which are designed to be made and repaired with simple victorian tools. Of course most professionals are using much more modern equipment and materials these days but you can still fix a lot of common problems with a few basic tools. It's rarely necessary to completely replace a sash window, in general modern wood stock is not as stable as the aged pine and any damaged areas can be replaced with an epoxy resin.
I'll try not to hog the thread with massive posts about sash windows, if people are interested in how to carry out an inspection of a sash window for common problems and to establish what needs repairing and how it's done I could try and write a description.
Professional weatherstripping kits are available from Reddiseals (google them), there are other firms but I have settled on Reddiseals after trying a few others. Generally you need a router to install the weatherstripping on the sash but you can buy the sash and parting bead with the routed groove and weatherstrip in place if you need it that way.
Most people are intimidated by sash windows but they are quite simple elegant designs which are designed to be made and repaired with simple victorian tools. Of course most professionals are using much more modern equipment and materials these days but you can still fix a lot of common problems with a few basic tools. It's rarely necessary to completely replace a sash window, in general modern wood stock is not as stable as the aged pine and any damaged areas can be replaced with an epoxy resin.
I'll try not to hog the thread with massive posts about sash windows, if people are interested in how to carry out an inspection of a sash window for common problems and to establish what needs repairing and how it's done I could try and write a description.