Project example: a 55-inch TV on an interior partition of a gated-community condo, with the shared wall left alone — what it looks like and what it costs

The scenario

The unit is an attached two-bedroom home on the ground floor of a condo building, with a living room that opens through a slider to a small patio. The wall on the left is shared with the next unit; the wall opposite the sofa is a partition between the living room and the hall.

The household wants a 55-inch TV that can be watched from the sofa without turning the room into a speaker for the neighbors. They are also unsure whether the association allows anything on the wall, and the community has a guard gate that needs a name in advance.

The shared wall is the obvious blank space and the one least suited to the job. The plan therefore uses the hall partition, a little to one side of center, with the cable running to an outlet that already exists on that wall.

What the job involves

1. The installer asks the household which wall is shared, then checks the building plan or the management office to confirm it; the partition by the hall is the one inside the unit.
2. A stud finder and a small probe hole mark the framing behind the drywall, and the building is confirmed as wood-framed.
3. Tape on the wall outlines the screen, and the sofa tells the height: the center sits close to the seated eye line.
4. Pilot holes are drilled into two studs and the plate is fastened with lag bolts, then leveled.
5. The TV is hung and locked; the cord is dressed to the existing outlet behind the console.
6. The household is shown the lock screws and the gap behind the TV, and the holes' positions are noted in case the mount is ever removed.

Hardware and materials

• Fixed low-profile mount rated above the TV's weight
• Lag bolts sized for studs, pilot bit and a socket driver
• Stud finder, small probe bit and spirit level
• Cord cover or a short paintable raceway to the outlet

Add-ons often paired with this job

• Mount a soundbar as well — +$50–$85. A bar below the TV is set on its own bracket, and the subwoofer stays on the side away from the shared wall.
• Hide the wires inside the wall — +$95–$160. In-wall concealment is only considered on the interior partition, never on a shared wall.
• Take down an existing TV first — +$40–$90. An older TV is taken down and its holes filled as a separate line.

Why it is done this way

The shared wall is left alone because the rules for it come first and the practical reasons come second. In a condo it is often a fire-rated separation wall, the CC&Rs often limit holes in it, and sound and bass pass through it to the neighbor's home.

The hall partition has a household on both sides, so the plan is simple: studs, lag bolts, a level and a short cord. Because the cable stays on the surface, no recessed box or in-wall run disturbs any wall that is not the household's own.

The gate and the parking are part of the job as well. A visitor name is given to the guard in advance, a guest space is arranged and drilling is kept to the hours the association allows.

The scenario assumes the household already owns a mount, so no mount line is added; the range sits at the lower end for a mid-size TV on drywall.

What would change the price

• The building turns out to use metal studs and different fasteners are needed.
• The partition holds a pipe or a switch box where the plate was planned, and the position shifts.
• The household wants the cable hidden and the only workable wall is shared, so a raceway replaces an in-wall run.
• A mount has to be supplied, which adds a line.
• A second TV in the bedroom is done in the same trip.