Good idea? Need to feed a TV aerial cable into an upstairs bedroom. External wall is thicker than my drill bit is long (K-rend + insulation + brick + plasterboard) & I'm shit on ladders so don't wanna be up there for ages.... so I thought I could just pop a quick hole in the corner of the window frame & seal around the cable.
Cheers Wingy. I can't actually drill from inside (I did think of that, honest ) due to the built-in bedroom furniture. I hope the bring the cable into the void behind it.
I'm gonna have another think around it though.....
Ideally drill the wall but if you have to drill the the window frame use a high speed steel drill bit as it drills through plastic like a hot knife through butter, you may also come across some steel reinforcements in the frame so it will be good for that too. Put a loop on the cable outside the window. It will help stop any moisture that runs down the cable coming in the hole you drill as it will gather at the bottom of the loop and fall to the ground before it goes through the hole. Make sure you mastic. I’d be tempted to just mastic inside because water always finds a way so you need to give it a path of least resistance to stop it gathering where you don’t want it too, if you only mastic the inside you’ll in essence be creating a run off to the outside. But I’m undecided if that’s the best idea in this case as the frame will be hollow at least in some part and the danger is the section below where you’ve drilled fills with water and might escape from the fixings that hold the window in place causing damp spots where you don’t want them.
Wouldn’t be advising drilling the frame to be honest. Can you not drill just under the sill as this will more than likely be just mortar and easier to drill? Regarding the drill bit get yourself to CEF in Earlsdon or Screwfix etc and buy an electricians long drill bit-you’d be surprised how long in size some of them are. Buying the drill bit will still be cheaper than paying someone?