Job Description: After my under-floor ducted heater was removed I have a hole in the wall of my house that I would like to have closed. The dimensions are approximately 97mm wide by 46mm high. My estimate is that it would need about 20 bricks to fill the hole, which I have. The only access now is by working under the floor which has a clearance of about 500mm. The external access has been blocked by the external section of an AC system. This also requires a new lintel, approximately 100x100x6x1200mm. There is a subfloor entrance about 3M from the hole in the wall. Views include subfloor and external entrance and portion of the AC unit partially blocking up the hole.