Bathroom Renovation at 510 West 123rd Street

Bathroom Renovation at 510 West 123rd Street

Designer Ben
Project manager Ofek
Renovation Expert Ben

Projects › Upper Manhattan › 510 West 123rd Street

Completed project · Upper Manhattan, New York, NY

A Morningside Heights bathroom rebuilt shower to shower, with an unusually long list of things deliberately kept: the custom glass shower enclosure, the toilet, the showerhead and handshower, the pressure-balancing trim, a grab bar, both recessed ceiling lights, the dimmers and the GFCI outlet.

Renovated bathroom with a walnut floating vanity, a white stone counter, a glass shower enclosure and a black tile floor
The glass shower enclosure is the original. It was protected through demolition and put back.

Job record

Location
Morningside Heights, New York, NY 10027
Building
510 West 123rd Street
Scope
Bathroom renovation, shower to shower
Construction
Joist-construction floor and ceiling
Reused
The custom glass shower, the toilet, the shower fittings, a grab bar and both recessed lights
Completed
2021

What was kept, and why that is the interesting part

Most renovation scopes have a demolition list and little else. This one has a protection list almost as long, and reading the two together tells you more about how the job was run than any photograph does.

Out went the door and hinges, part of the dropped ceiling, the surface-mounted tri-view medicine cabinet, the sconce, the floor tile and saddle, the wall tile, the vanity, counter and sink, the shower stall with its bench and drain, one grab bar, the pressure-balancing valve, the shut-off valves, the hot and cold branch lines and the shower fixture.

Protected and put back: the door lockset, the tank toilet and seat, the showerhead and arm, the handshower with its hose and elbow, the pressure-balancing trim, one grab bar, both recessed ceiling lights, the dimmers, the GFCI outlet and its plate, and the custom glass shower enclosure. That last item is the one that matters most: custom glass is expensive, slow to remake and easy to break, and keeping it through a full strip-out takes deliberate care.

The bathroom along its length, showing the toilet, the tiled shower with its bench, and the vanity beyond
The shower bench and curb were rebuilt in cinderblock, which is what a lead pan needs to sit on.
The walnut vanity with the surface-mounted medicine cabinet above it and a lit strip beneath
The vanity floats, so the black floor tile runs continuously underneath it.

What the crew did, in order

  1. Separate the demolition list from the protection list

    Before anything came out, the scope named what was staying. Two grab bars illustrate the distinction precisely: one is listed under demolition and one under protection. That is the level at which a scope has to be written if the crew is to know what to wrap and what to skip.

  2. Replace the branch plumbing back to the risers

    New shut-off valves, water hammer arrestors and new hot and cold branch lines run back to the risers. A new pressure-balancing valve went into the existing location, feeding both the fixed shower head and the handshower, with the original trim reinstalled over it.

  3. Rebuild the shower base in cinderblock

    A new lead pan was installed and the shower curb and bench were constructed in cinderblock. Cinderblock rather than timber is what allows a lead pan and a tiled bench to sit on something that will not move or rot behind the waterproofing.

  4. Waterproof the floor and the shower walls separately

    Laticrete 9235 membrane across the bathroom floor, turned six inches up the walls, then floor tile grouted, sealed and caulked with a stone saddle. A separate waterproof membrane went onto the shower enclosure walls, over cement board.

  5. Tile the shower ceiling and the beam

    Wall tile runs to ceiling height inside the shower enclosure, and the scope is specific that this includes the shower ceiling and the beam. Outside the enclosure the tile stops at about four feet. Tiling a shower ceiling is uncommon and it is what stops the one surface that takes the most steam from being the one surface that is painted.

  6. Put the fittings back where they were

    The vanity, sink and faucet went into the same location. The tank toilet went back on the same rough-in. The GFCI duplex and dimmers were reinstalled in their existing positions. A new sconce went in with its position adjusted slightly where needed.

  7. Skim the ceiling, hang a new door

    Part of the dropped ceiling had come out, so the ceiling was skimmed before painting. A new door, lockset and hinges were fitted, except that the original lockset had been protected and was reused.

The finished bathroom

A walnut vanity floating above a black tile floor, a white stone counter with an undermount basin, and white wall tile running to the ceiling in the shower. The glass enclosure, being the original, sets the shower dimensions and everything else was built to suit it rather than the other way around.

The medicine cabinet and counter seen square on, with the mirrored doors reflecting the doorway
A surface-mounted cabinet, not recessed. The wall behind it is a joist-construction partition.
The finished bathroom from the doorway, showing the vanity, mirror, glass shower and window
Wall tile runs to ceiling height inside the shower, including the ceiling and the beam, and to about four feet outside it.

This is described in the scope as a joist-construction floor and ceiling, which matters more than it sounds. It means the floor and the ceiling below are timber rather than concrete, so the waterproofing under the tile is not a formality and the lead pan under the shower is the only thing between a leak and the apartment beneath.

Close view of the undermount basin and chrome faucet set into the white stone counter
The vanity, sink and faucet all went back in the same position as the ones they replaced.
Close detail of the undermount basin, counter edge and chrome faucet against white wall tile
The counter is a single piece. The basin is undermounted, so there is no rim to clean around.

Materials and finishes

Protected and reused

ElementSpecification
Shower enclosureCustom glass, protected through demolition and reinstalled
ToiletTank toilet and seat, reinstalled on the same rough-in
Shower fittingsShowerhead and arm, handshower with hose and elbow, pressure-balancing trim
Grab barOne of two, protected; the other was replaced
LightingBoth recessed ceiling lights, plus the dimmers
ElectricalGFCI duplex and plate, reinstalled in the same location
Door locksetProtected and refitted to the new door

Shower construction

ElementSpecification
Shower baseNew lead pan
Curb and benchConstructed in cinderblock
Enclosure wallsCement board with a waterproof membrane over it
Wall tileTo ceiling height inside the enclosure, including the shower ceiling and beam
Wall tile outsideTo approximately 4 ft
Pressure-balancing valveNew, in the existing location, serving fixed head and handshower

Floor and finishes

ElementSpecification
Floor waterproofingLaticrete 9235, turned 6 in up the walls
Floor tileGrouted, sealed and caulked, with a stone saddle
CeilingPartial dropped ceiling removed, then skimmed
WallsResurfaced where required
FinishBathroom painted

Fittings

ElementSpecification
Vanity, counter and sinkNew, installed in the same location
FaucetNew, deck mounted
Medicine cabinetSurface mounted, replacing a surface-mount tri-view unit
SconceNew, position adjusted slightly where required
AccessoriesToilet paper holder, robe hook, towel bars, grab bar cleated to the wall, shower shelves
DoorNew door and hinges on the existing lockset

The result

11items protected and reused
1 of 2grab bars kept
0shower glass replaced

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Questions this project answers

Can I keep my existing shower glass or fittings in a bathroom renovation?

Yes, and this job is the clearest example of it being done properly. The scope carries a protection list alongside the demolition list, and on it are the custom glass shower enclosure, the showerhead and arm, the handshower with its hose and elbow, the pressure-balancing trim, the toilet and seat, one grab bar, both recessed lights, the dimmers and the GFCI outlet. Custom glass in particular is worth protecting: it is made to the opening, so replacing it means remaking it. Ask for anything you want kept to be named under protection in the written scope, not merely left off the demolition list.

Will my downstairs neighbor be affected if my bathroom leaks?

In a timber-framed building, yes, and this scope names the condition explicitly as a joist-construction floor and ceiling. That means the floor beneath your tile and the ceiling of the apartment below are wood rather than concrete, so the waterproofing is the only barrier. Here that was taken seriously: a Laticrete 9235 membrane across the whole floor turned six inches up the walls, a separate membrane on the shower enclosure walls over cement board, and a new lead pan under the shower. If your building is pre-war and timber-framed, ask specifically what goes under the tile.

Should I tile my bathroom to the ceiling or stop partway up?

This bathroom did both, deliberately. Inside the shower enclosure the tile runs to ceiling height and the scope specifies that this includes the shower ceiling and the beam. Outside the enclosure it stops at about four feet. That is a sensible split: the shower ceiling takes more steam than any other surface in the room and is the first place paint fails, while the walls beyond the glass do not need the same protection or the same cost.

What is a lead pan and why does a shower need one?

It is a waterproof tray formed under the shower floor, and in a timber-framed building it is the last line of defence before your neighbour’s ceiling. This job installed a new one and built the curb and bench above it in cinderblock rather than timber, so that the structure carrying the tile cannot rot or move behind the waterproofing. A shower bench built on studwork over a pan is a much more common and much less durable arrangement.

What are change orders, and how do I avoid being overcharged by my contractor?

A change order is a written amendment to what was agreed. This scope defends against them by being specific about small things, which is where surprises usually live. It distinguishes between two grab bars, one removed and one protected. It says the new sconce position may be adjusted slightly if required. It names the partial dropped ceiling rather than the ceiling. When the paperwork is that granular, the crew knows what was priced and so do you.

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