new bathroom fitted bath draining out via shower and floor

[jenny105]

just had new bathroom fitted ..taken 8 weeks ..so far!
Bath is emptying via shower and all over the whole bathroom floor. Fitter says must be my drains. He is speaking of attempting to get under floor in next door airing cupboard which houses the gas boiler and try to put a vent pipe into the cupboard, venting into cupboard. Cottage was built in 1897 and there is only about 18 inches under the floorboards.
The bath gurgles and the shower drain knocks and food waste from the kitchen comes into shower
Have not got final figure from him yet
In my seventies am getting very frustrated ...says he is very busy and got 2 bathrooms and a kitchen to fit before xmas but I would have thought a flooded bathroom was a priority!
Jenny

 

[rpm]

You should take priority over the other jobs, don`t pay him until work is completed and I don`t see a vent pipe being required. Have you had problems with anything being slow to drain away before this bathroom work?

 

[snowhead]

Had to turn it around, it was painfull trying to read it.

If the fitter can't sort out the drains for this bathroom he / she shouldn't be starting anymore bathrooms or kitchens or he /she could end up with 3 sets of drains not flowing.

A vent (Air admittance valve?) isn't going to make it suddenly work.
When you say next door, you mean the house next door or the room next door?

Did the drains flow freely with the old bathroom set up?
Did he / she check and or clear them whilst everything was out and they were easy to get to?
Did he / she do all the tiling and by any chance tip the slurry from the grout and or adhesive down the drain?
Did he replace all the drains that were easilly accessable?