Damp

First find the source of the damp eg. leaking gutter/downspout, missing or cracked roof tile etc. Fix that first before looking at the frame.

If there is no obvious source of damp and it is a case of the wood rotting due to poor maintenance then the best advice is to remove as much of the ro tted damp wood as possible. Use Ronseal hardener or similar products to sta bilise the not so bad areas. If the damage is extensive try to splice in ne w wood before making good with the likes of Ronseal two part wood filler or similar materials eg. car body filler before sanding to blend in and apply ing 3 coats of paint. If the damage is fairly limited then filling with pre viously mentioned products may be all that is required.

For varnished hardwood replacing the the whole damaged component is probabl y the only way you are going make it look right as opposed to a naff pieced together job.

Richard

Further to above. If the damp proof course is naff, you can hire a damp proofing chemical injection pump.

Or, drill holes in the cement and keep pouring the stuff in for a few days.

you can if entirely without grasp of how it all works.

The basic problem is normally either defective rainwater goods or interior RH too high. If the latter, reduce damp at source or dehumidify.

NT