Can a TV be mounted on plasterboard?

Not on plasterboard alone. The fixings have to reach the timber studs or the masonry behind the board. On dot-and-dab, cavity anchors cannot open in the blocked void, so through-fixings into the masonry are used.

The bracket is rated for more than my TV weighs — why did it move?

Because the weight is not the load. An arm holds the set away from the wall, and that leverage multiplies the pull-out force on the top fixings well beyond the set's weight.

There is a small gap behind the top of the bracket — is that a problem?

Treat it as urgent. That gap is the top fixings starting to pull out. Take the item down rather than watching it, because a heavy screen or mirror gives no further warning.

High risk

Updated 30 August 2026

TV Bracket Or Mirror Coming Away From The Wall

A wall-mounted television or a heavy mirror has tilted, moved, or opened a gap behind its bracket.

Find a handyman

Property repair work, illustrative image

What's happening?

A heavy object on a wall does not simply hang; it levers. The weight sits away from the wall face, so the load tries to rotate the bracket, and that turns into a pull-out force concentrated on the top fixings. It is why a television on an extending arm can generate far more force at the top bolts than the set actually weighs, and why a bracket that felt rock solid the day it went up can be moving a year later. The wall decides everything. Into masonry with the right anchor, or into the timber studs, a bracket is very strong. Into plasterboard alone, or into a dot-and-dab wall with cavity anchors that could never open behind the board, it is on borrowed time.

What usually causes it?

Fixings into plasterboard alone rather than into masonry or a timber stud
Cavity anchors on a dot-and-dab wall, where adhesive blocks the void so the anchor cannot set
The leverage of a tilting or extending arm ignored, so fixings rated for the static weight are overloaded
Only some of the bracket's fixing holes used, concentrating the load on too few points
Anchors overtightened at installation, crushing the board behind and destroying the grip
The wrong anchor for the masonry — a plug meant for solid brick used in aerated block or crumbling old mortar
The bracket adjusted, tilted and pulled repeatedly over months, working the fixings loose

Is it dangerous?

Yes. A falling television or a large mirror is a serious injury risk, particularly over a sofa, a bed or where children play, and mirror glass breaks on impact. Take the item down now if there is any movement or any gap opening behind the bracket, and do not re-hang it on the same fixings.

Can I fix it myself?

Only the assessment. Establish what the wall is and where the studs are, and read the bracket's own rated capacity and fixing schedule. Re-mounting a heavy set safely means supporting the weight while the new fixings go in and choosing anchors rated well above the leverage rather than the weight, and that is genuinely a two-person job with the right fixings to hand.

When should you call a handyman?

Call a handyman as soon as a bracket has moved, and before mounting anything heavy on a stud or dot-and-dab wall in the first place — the fixing decision is made before the bracket goes up, not after. Anything involving mains cabling behind the wall for a concealed installation is separate work for an electrician.

What will the handyman actually do?

Take the item down and support it before disturbing the existing fixings
Establish the wall construction and locate studs, cables and pipes
Repair or make good the failed holes so the new fixings are not landing in damaged material
Fit anchors rated well above the leverage load, using every fixing hole the bracket provides
Remount, level and test the bracket loaded, checking movement through the full range of tilt or extension

Frequently asked questions

We’re happy to answer all your questions.

Sources & References

Shelf Pulled Out Of The WallCaution Curtain Pole Or Blind Pulling Out Of The WallCaution Flat-Pack Furniture Wobbling Or Coming ApartCaution

Need a handyman?

Compare local handymen on Tradehand — coverage areas, accreditations and phone numbers, no middleman.