Every chimney has the same two jobs, venting smoke and gases outside and keeping the heat of the fire away from the house itself. When creosote builds up, a liner cracks, a nest blocks the flue or water rots the masonry, it stops doing those jobs safely. That is why the usual advice is a yearly inspection, with a sweep when it is needed, before the first fire of the season.
Older homes around Shrewsbury often have brick chimneys with clay tile liners and mortar that has been through decades of weather, while newer homes tend to have factory built fireplaces with metal flues and a wood framed chase. Each type wears out in its own way: brick chimneys crack, spall and leak, and prefab units rust, warp and lose their caps. A sweep who knows homes in Shrewsbury, NJ can quickly sort out which kind of problem you have.
Chimney work around Shrewsbury runs from routine cleaning to real repairs, from a fireplace that smokes into the room to a stain on the ceiling after a storm. Whether you need chimney cleaning in Shrewsbury or a repair after a storm, you do not need to know the cause. Describe what you see, smell or hear, and when it happens.