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Found mold behind 1-2 tiles outside shower, and not sure who best to call

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Mar 24, 2014, 02:46 PM
Found mold behind 1-2 tiles outside shower, and not sure who best to call
Attached 4 images in a zip file. I've had the shower track leak over time (inherited from previous owner of course). I caulk and few months later it starts to leak again. So we decided to investigate the problem further since we have seen a stain below the floor (on kitchen ceiling). And in doing so, we removed 2 tiles and found mold and soft wood. This is outside my level of 'handyness' so I'm not sure who is the appropriate person to assess the situation, and help replace/fix the problem. Thanks for any advice!

Mar 24, 2014, 02:47 PM
sorry..picture posted on it's side...
Mar 24, 2014, 03:26 PM
I only see one picture, can you give us a better and wider view.?
Mar 24, 2014, 03:52 PM
gut time. the water got there thanks to leaks all the way through. grout is not impervious to water. it is my sad duty to inform you that you will find the shower area is ugly underneath from insufficient materials, which used to be the norm. you can poke a couple holes and use an inspection camera to be sure, but I've seen enough. whether it followed the curb, or came through the wall, or there is a mud pan issue, a patch won't do it.

This message has been edited. Last edited by: swschrad,

sig: if this is a new economy, how come they still want my old-fashioned money?
Mar 24, 2014, 05:10 PM
here is another picture. if it shows up rotated incorrectly, that's the DIY software doing it Smile

Mar 24, 2014, 05:11 PM
another pic.... who is the right contractor/person to call for such a problem? a bathroom contractor? mold contractor?

Also on the right - where the rust is...i think that is an old 'plate' of some sort that was put there prior to me moving in (5 yrs ago)...not sure if they were trying to cover it up? but i think it was metal because there are 3 perfect holes on the left of the plate. - you can kind of see it.

This message has been edited. Last edited by: kbswimwm,

Mar 24, 2014, 06:22 PM
Just my $.02: I would call a plumbing contractor; you don't know how far back the deterioration extends and/or if any of the plumbing fixtures will need to be pulled in the repair process. And from your description, the leak is basically a plumbing issue.

You could also e-mail a photo to your selected plumbing contractor (or a few, to get estimates and proposed work scope) with an explanation and ask if that's something they'll handle.

I don't think I'd call in a mold contractor yet, until you know the extent of the problem. It might also be that if the damage and mold are extensive, you might need a general contractor for multi-purpose repairs (fingers crossed it isn't that bad!)

I'm the bathroom floor squishy at all?

Good luck!
Mar 24, 2014, 06:48 PM
Thanks everyone!

The bathroom floor is not squishy at all. Solid. the only leak i ever saw was water coming from the outside of the shower track and pooling into the corner. I had a plumber out a few weeks ago and he said it wouldn't be a plumbing issue because i would see more extensive damage to my kitchen ceiling (below the shower). But who knows? I did find one very small hole in the grout near the shower knob - this is the same side of the wall of the problem..
Mar 24, 2014, 06:55 PM
Regular contractor or handyman can handle this.

Mar 24, 2014, 09:06 PM
If you hire a regular contractor or a handyman you're liable to have the same problem down the road.

Whoever you eventually hire be sure they are familiar how to build waterproof/watertight showers. The tiles and grout is not what makes the shower waterproof. The substrate must be waterproofed before any tiles are installed.

I recommend finding a real tile setter that specializes in Kerdi showers. There are other ways, but I think Kerdi is by far the best.


Tile 4 You llc - Troy, MI
Kerdi shower specialist - Ditra installs - Product-Method suitability consultation. I have NEVER made a mistake, I thought I did once...........but I was wrong!
Mar 24, 2014, 09:36 PM
Hire a remodel contractor or a well recommended handyman (most handyman are not capable of building a tile shower pan). But, they will know when to 'step in' or 'step out'. They will do the tear out, and then you can tell the extent of any problems. Then you can decide if you want to call in a mold expert. Then maybe they'll bring in a tile company or maybe they have their own tile people. And maybe they will bring in an outside plumber or maybe they have their own plumber. And maybe some framing work will be involved, which they will do.

Somebody that is use to remodeling will know what steps to take and when. And if you have a tile floor put in, building codes require an inspection to verify it holds water. The builder would plug up the drain and then fill it with water. The inspector comes by and checks it out, then signs the ok if there are no problems.

You can buy a shower pan made out of fiberglass, or you can have them made with Corian or cultured marble. They are easier to install and much less likely to leak down the road. And no inspection is then required. And I said they are easier to install, but depending on the size of the shower, the Corian or cultured marble pans can get heavy to lift and maneuver around.

With the amount of different subjects to deal with, (framing, plumbing, tile,) a remodel contractor is your best bet

They make it look so easy on tv, don't they
Mar 25, 2014, 12:02 AM
Thank you all for your input. I've made a few calls so we'll see what pans out. Much appreciated!
Mar 25, 2014, 09:50 AM
whoever does this, the standard now is no organics, impervious backings to wall and floor that positively drain into the shower pan, and the corners get siliconed, not grouted. there are multiple ways to get there. but that's how it's done correctly.

sig: if this is a new economy, how come they still want my old-fashioned money?