I need to drill a 20mm hole through an outer wall of my house to run some pipes for network cabling through. Problem is, the place it needs to go is disturbingly close to the little white box on the wall that says "British Gas" on it (where the gas main enters the house)
Any recommendations as to how I can find out the exact locations of the gas pipes inside the walls before I blow myself and the neighbourhood up? (I don't have any house build plans, unfortunately. It was built in the early 80s and I moved in about 2 years ago)
- Christiaan