changing single to double glazing

[massey148]

I'm intending to change my single to double glazing on teak frames.I'm a carpenter and intend to do it myself. Problem is removing rock hard putty without damaging the frames.Has anyone seen the professionals do this process.Also a standard router won't rebate into the corners.What kind of tool do they use for this. Any suggestions would b appreciated.

 

[NHG]

Unfortunately, it is a slow painful process removing the old putty, and you will have to deepen the rebate in the corners with a chisel.

Where the sashes open get new sashes made as they will now come with rubber draught seals or groove the sash yourself and fit some rubber draught seals.

 

[massey148]

Yeah thaught that.It's a good job i have plenty of time on my hands!