Bathroom on 3rd Floor
Could someone explain to me what is involved (i.e. extension of pipes, cutting through walls, etc.) in putting a bathroom on the 3rd floor of a three story house. There is a bathroom on the 1st floor directly under where the new bathroom would be (but none on the second floor). Is this a very…
Could someone explain to me what is involved (i.e. extension of pipes, cutting through walls, etc.) in putting a bathroom on the 3rd floor of a three story house. There is a bathroom on the 1st floor directly under where the new bathroom would be (but none on the second floor). Is this a very common and easy thing to do, or is it complicated and messy? And do you need more than just a contractor? Thanks.
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sadly ,in this day and age, there is no cheap way to do this.. you must hire an architect to submit plans to the dob, get a licensed plumber and contractor to do the job, get it inspected and signed off.. if you go the cheap route, and do it illegally, you set yourself up for a $5000 from the DOB
Extending the hot and cold water feed the additional two floors is routine and easier to hide.
Try to determine if the large waste line usually 4″ cast iron already is run up through attic/roof. There only has to be a 2″ vent line for the existing bath going up through roof, but if you are lucky, or there was previously a toilet up stairs, then the large waste line may already be up there.
Extending a large waste line with 4″ no hub is expensive and physically large to hide, basically you will need to construct a plumbing “chase”, an enclosure to hide the pipes. If the waste line is there already, it may already be t’d and capped, or it will need to be t’d. Much cheaper than running it from scratch.
Relatively speaking, it’s not that difficult a thing to do if the pipes below are in the right place. If for example, they’re on the perimeter wall, then extending them up to the third, inside that perimeter wall, is easy. It requires cutting open the wall in the same location on the second floor to run the pipes, but that could be about it.
Of course that’s the ideal solution and in our experience in Brooklyn brownstones, nothing is ideal. You really need an architect or contractor to come and help figure out where the pipes are, if you don’t know already.
You will need an architect to file drawings with the DOB as you are creating another room and adding plumbing fixtures.
Jim Hill, RA, LEED AP
Is there or was there ever a kitchen on the 2nd or 3rd floors? Apart from water pipes, you will have to run the waste to the main stack(sewer line). Do you know where that is? It may not necessarily be right near your bathroom, but if you only have the 1 bathroom, it would make sense that it’s there.
The right way to do this is to file with the DOB and have a licensed plumber do the work. The “easy” way…a good general contractor knows his/her plumbing too.