A ceiling that sags or bows in Manchester, NH
Board pulling away, or plaster letting go
A ceiling that is no longer flat is worth attention sooner rather than later, because the failure mode is gravity and it does not reverse. Whether it is urgent depends entirely on what the ceiling is made of, and in this city that splits neatly between houses built before roughly 1950 and everything after.
Modern board: usually screws
A gentle wave between the joists in a post-war house normally means the thinner half-inch sheet was used on framing spaced too far apart, or the fasteners have worked their way loose in an attic that swings between freezing and a hundred and thirty degrees. It is refastened into the joists with new screws, adhesive added where the gap has grown, and the worst areas replaced with the thicker sheet that holds itself flat.
Plaster: the keys have broken
Plaster ceilings hold themselves up by the lumps of wet plaster that were squeezed through the gaps between lath strips and hardened there — the keys. When enough of those snap, usually from vibration or an old leak, the ceiling hangs on friction alone. It bows first, then comes down in a sheet, and a plaster ceiling weighs a great deal more than people expect. This is the one situation where we would rather you called sooner.
What we do about a plaster ceiling
If the plaster is otherwise sound it can be pulled back up to the lath and mechanically held there with washers and adhesive, then skimmed flat. Where the material is crumbling or a wide area has released, that section comes down and new board goes up, packed out to sit flush with the original plaster around it. What nobody should do is screw board over a loose plaster ceiling and hope: the plaster still comes down, taking the new ceiling with it.
Stay out from under it
If a ceiling is visibly bowed and shedding dust or flakes, keep people out of the room and move anything you care about. That is not a sales line — a section of plaster ceiling coming down on a bed is a genuine injury risk, and it usually goes at night when the house cools.
Often turns up alongside
People dealing with A ceiling that sags or bows usually also ask about our a hole in the wall service, professional cracks over doors and windows and a brown stain on the ceiling services — call and we'll tell you which one your job needs.
Towns we cover
We take this work across the Merrimack Valley, including drywall repair in Bedford, Goffstown drywall repair calls, serving Hooksett, drywall repair for Londonderry property owners, Derry, drywall repair in Auburn, Candia drywall repair calls, serving Merrimack, drywall repair for Litchfield property owners, Bow, drywall repair in Concord and Nashua drywall repair calls, and the surrounding communities.
Send a photo of it
A photo of the damage is usually enough for a number the same day.
📞 Tap to Call — Free Estimate 603-555-0118Weekdays 7:30 to 5:30, Saturday mornings by arrangement