JOHANNEMANN & SONSGENERAL CONTRACTING · BERGEN COUNTY NJ
(201) 446-5941 Free Estimate
A bright marble bathroom with a freestanding tub and glass shower
Interior · Renovation

Bathrooms built to last decades.

Primary baths, hall baths and powder rooms across Bergen County — waterproofed as a continuous assembly, vented to outside, and inspected before anything is covered. The finishes are the part you choose. The part behind them is the part that decides whether you do this again in six years.

Licensed general contractor — we file the permits and schedule the municipal inspections as part of the job.

Rooms

Bathrooms across Bergen County

Every one of these has a membrane, a pitched pre-pan and a bonded drain behind it. None of that is visible in a photograph, which is rather the point.

A marble bathroom with a freestanding tub and wood vanity
Primary bath, full re-pipe and a waterproofed wet area
A bright bathroom with marble tiling, a round mirror and black fittings
Hall bath in a 1930s colonial, original window retained
A navy vanity with marble top and a glass shower
Ventilation ducted to outside, not into the roof space
A bathroom with a teal vanity and two round mirrors
Guest bath, waste re-run to correct a long-standing vent problem
A white bathroom with a walk-in shower and stone counter
Curbless entry, floor built to fall before any tile went down
A tiled shower wall with a vertical mosaic band and black fittings
Membrane behind every wet wall, corners sealed as a system
A room stripped back to the substrate before finishes
Back to substrate — the only honest starting point on a wet room

See the full project index

The assembly

What goes in before the tile.

Almost every failed bathroom we are called to look at failed in the same place and for the same reason. Water got through the tile — which it always does, because tile and grout are porous — and found nothing behind it doing a job. Six or seven years later the ceiling below has a stain on it and the tile has to come off to fix something that cost a few hundred dollars to do properly the first time.

These five things are the assembly. Leave any one of them out and the other four do not save you.

01

A substrate that does not care about water

Cement backer board or a foam board system. Not drywall, not green board, not anything with paper on it.

02

A bonded membrane, continuous

Sheet or liquid-applied, taken up the walls and across every change of plane. Continuous is the operative word: a membrane with a gap in it is a decoration.

03

A pre-pan with real fall

The floor is sloped in mortar before the membrane goes on, so the water reaches the drain under the tile as well as on top of it.

04

A drain bonded to the membrane

A bonding-flange or clamping drain, tied into the membrane as one system. A drain that merely sits near the waterproofing is the most common failure point in the whole room.

05

Corners and penetrations sealed

Preformed corners, banded seams, and every valve and mixer body sealed where it passes through. Then a flood test before tile.

How to read a cheap bathroom quote

If the estimate has a line for tile and a line for labor and nothing between them, the waterproofing is either not being done or is being done with whatever is in the van. Ask what membrane, ask whether the drain is bonded, and ask whether the pan is flood-tested before tiling. Three questions, and the answers tell you what you need to know about the whole quote.

Scope

Three bathrooms, three different jobs.

People use one word for rooms that have almost nothing in common in cost, schedule or disruption.

Powder room

No shower, no bath, no wet area.

  • Typically one to two weeks
  • No waterproofing assembly, so no flood test
  • Ventilation still required
  • Where an ambitious finish costs least — the small room is the one to be brave in
On site 1–2 weeks

Hall bath

The one the whole family uses.

  • Three to five weeks on site
  • Full wet-area assembly behind tub or shower
  • Usually the original 1920s–1950s layout, kept
  • Durability matters more than drama here
On site 3–5 weeks

Primary bath

Reconfigured, usually enlarged.

  • Five to eight weeks, longer with structural change
  • Relocated fixtures, so floor and often ceiling below come open
  • Bench, niche, curbless entry, heated floor
  • The one where moving the toilet gets discussed and priced
On site 5–8 weeks
A tiled shower wall with a vertical mosaic band

Ventilation that actually goes outside.

A fan venting into the attic moves the moisture out of the room and into the roof structure, where it condenses on the underside of the sheathing all winter. We duct to an exterior wall or a roof cap, in insulated duct, on the shortest run the layout allows.

Interior joinery being fitted during a renovation
Older houses

Older homes, and what they hide.

The bathrooms in this county are mostly original or one generation on from original. All of the following is normal, and all of it is priced honestly at estimate rather than discovered as an extra.

Mud-set tile on wire lath

The original floors and walls are often an inch of mortar on metal lath. It is beautifully durable and a genuinely heavy, slow strip-out. It also means the floor build-up you are replacing is thicker than modern tile, which matters at doorways.

A cast-iron waste stack

Often still perfectly serviceable, sometimes corroded through at the hub. We scope it while the wall is open and tell you which, rather than guessing from the outside.

A vent that was never really a vent

Gurgling drains and a slow tub are usually venting, not blockage. Move a fixture without correcting the vent and you move the problem into a different room.

A window in the wet area

Common, and usually worth keeping on a period house. It needs the opening waterproofed into the membrane, the sill pitched to drain, and a sash that tolerates constant wet. Tiled over without that, it is the first place the wall fails.

Schedule

How your bathroom runs

Shorter than a kitchen, and less forgiving — the room is unusable from day one, so the schedule matters more.

01

Selections, all of them, first

Tile, stone, fixtures and the shower valve, settled before demolition. A back-ordered tile stops a bathroom at exactly the point where you cannot use it.

02

Permits

Plumbing and electrical, filed with the municipality. Two inspections sit inside the schedule and neither can be talked forward.

03

Strip out to substrate

Back to studs and joists. Dust containment, floor protection down the route, and a photographic record of everything the wall was hiding.

04

Rough-in, then inspection

Waste, vent, supply, circuits and ventilation duct. Inspected and signed before a single board goes back on.

05

Waterproofing and flood test

Substrate, membrane, pre-pan, bonded drain, sealed corners — then the pan is flooded and left to stand. This is the day that decides the next twenty years.

06

Tile, fixtures, final inspection

Setting, grouting, fixtures, glass, then municipal sign-off and the punch list walked with you before the balance is invoiced.

Questions

Before you start

How long will the bathroom be out of use?

A hall bath is three to five weeks on site; a reconfigured primary bath five to eight. It is out of use from the first day, which is why we will not start until the selections are in hand and the tile is actually in stock.

Can you move the toilet?

Yes, and it is the most expensive thing you can ask of a bathroom layout. A toilet needs a three-inch waste at a proper fall plus a vent, so the floor comes open and often the ceiling below with it. Moving a sink is easy by comparison. We will tell you what the move costs before you commit to the drawing.

Is a curbless shower worth it?

It looks better, it is easier to clean and it is far easier to live with later in life. It needs the floor structure dropped or built up so the fall happens inside the room rather than over a curb, which is straightforward on a joisted floor and awkward on a slab. Worth asking about early, because it is a framing decision rather than a finish one.

Do you do heated floors?

Yes — electric mat under tile, on its own circuit and thermostat. It is a small cost while the floor is open and an expensive regret afterwards, so it is worth deciding at rough-in.

What if you find something behind the wall?

You get a photograph, an explanation and a price before anything is done. We carry a stated contingency for exactly this on older houses, and unused contingency comes off the final invoice.

Free assessment

Let us walk the room with you.

A walkthrough, an honest account of what the room is hiding, and a fixed written price.