Weatherhead
The hooded fitting at the top of the service mast where overhead utility wires enter your home, shaped to keep rain out of the conduit running down to the meter.
The weatherhead (or masthead) and the mast below it are homeowner property in most utility territories, which surprises owners after storms: a tree limb that pulls the service drop and bends the mast leaves the utility waiting on your electrician before they will reattach their wires. The drip-loop of slack cable just below the head is intentional: water follows the loop down and drips off instead of tracking into the conduit.
Age tells at the weatherhead: cracked insulator boots, frayed conductor insulation where wires exit, rust streaks down the mast, and pulled-away attachment points are all standard inspection findings on older homes and are worth fixing before weather makes them urgent.
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- Service Drop & Service Lateral : The two ways utility power reaches a home: a service drop swings overhead from the pole to the weatherhead; a service lateral runs underground to the meter.
- Service Size (100 / 150 / 200 / 400 Amp) : The total amperage your home can draw from the utility, read off the main breaker.
- Disconnect (Emergency Disconnect) : A switch that cuts all power to a building or a piece of equipment.