There are two primary methods of addressing this issue.
Moaning noise in attic.
Likely culprits are rats mice grey squirrels and flying squirrels.
The loud thudding sound that follows is known as a water hammer.
There are a few possible sources for this sound but none of them ghostly or even worrying enough to call.
Mice rats birds or other animals may have entered the home and are chewing digging and pecking on the interior of your home from the attic or inside the walls.
If you hear thumping in your attic at night it s most likely a larger animal such as a raccoon or opossum engaged in jumping from one area of the attic to another actively shoving or destroying something or dragging something heavy.
Grinding noise in the attic.
This deafening sound is known as a water hammer.
Clicking knocking and clanking no that s not the sound of chains rattling in the attic.
An air chamber is a vertical pipe located in the wall cavity at the point near a faucet or valve where the water supply pipe exits the wall.
Check your air chamber.
Look for three screws in the top of the fill valve.
Grinding noises are likely to be made by some type of rodent.
Besides being alarming water hammer can potentially damage joints and connections in the water pipe itself.
If the noise is similar to a ball or something rolling around then this is most likely rats or squirrels rolling nuts around your attic.
A loose shutter on an attic window or loosened attic vents can cause a banging sound if it s windy as can branches hitting the roof.
If there are vocal noises in the attic then raccoons are going to be the most likely culprits since they are one of the few that actually talk.
Heating ducts as they cool also make banging noises as do.
This is a classic squirrel in the attic noise.
An air chamber is essentially a vertical pipe located near your faucet often in the wall.
The hammering action that creates the horrible racket is actually capable of damaging joints and connections in the pipe.
Snarling noise in the attic.
They may be chewing to improve passageways or just for fun.
If you see them the valve isn t sealed and you can disassemble.
Air passing through ducts and radiators can sometimes create a loud noise as can water passing through pipes.
One problem that could be causing a popping sound in your walls or in the attic is pests.
Grinding noises are made as rodents chew woodwork.
