Replacing a window with a door

[jeeves]

We would like to replace the above window with a door. Sadly the door would need to be wider, but would only need to be another 1/2 brick to be about the min. width we'd require.

The window is in an extension that was done in the 80s (I think, no earlier than 70s) - it is a cavity wall.

What's the best way to find out what's going on lintel wise here? Or generally the best was to proceed?

Thanks in advance.

 

[noseall]

You could be lucky lintel wise, depending upon what the nearest size available lintel, to bridge a (675mm?) opening. I doubt it though. Most likely a 900mm lintel above.

Is there any evidence of a metal lip on the outside course across the window - bottom of brick and the window guys may have siliconed against it?

 

[jeeves]

No sign of a lip at the front, the first pic shows the red/orange of the thin tile/brick things from above (sorry) going back as far as I can see (probably about 1/2 the depth of a brick.

 

[stuart45]

My guess is that you probably need to install a new lintel. You can cut away some plaster from inside to have a look.