My house sits on a concrete slab and I have water coming through the slab. A plumber could not find the cause. Who should I see to find the cause and repair the problem ?

Try a water proofing company. There are a lot out there. Get at lest 3 bids and explanations on what is wrong and how it will be fixed. Check with BBB to get rating on companies u call and ask for references.

Sometimes is an easy fix, but the cost can be very high.

Chuck

I have another take on this. Did the plumber check for an hidden pressure leak under the slab? No? B Then let's you and I check it out.
If you're on city water shut everything off in the house and go out to the water meter. Look at the little pointer. It should not move at all any movement indicates a hidden leak.
If you are on a pump then shut the house down and let the pump pump up to the cut off point. Now shut the pump off and watch the gage. If it falls then you have a hidden leak. Let me know what you find and we'll go from there. Good luck, Tom

I installed hardwoods in February in several rooms of my home. Built in 1978 on slab. Used moisture barrier glue per sales person. About 6 weeks later the floors started to pop up. I pulled up boards and at first did not see the moisture but after a while did see moisture both on floor and wood. I have had flooring companies out and they shake theirs heads as did irrigation, water proofer, custom home builder and finally a plumber who performed a hydrostatic test found a leak in utility/kitchen area but just not convinced it is the reason for the rest of the house based on the way it is laid out.
I discovered after moving some plastic storage containers from under a bed that now the carpet is damp checked and found that areas on carpet with something sitting on it where flooring cannot breath. It is damp.
Plumber suggested HVAC system is not pulling enough moisture. I am not sure where to go from here the 4 areas with wood have damage and 3 bdrms with carpet have dampness when plastic is left on so carpet cannot breath.
I live in the Houston area so always hot and humid here.
Anyone else have thoughts of where to go next.
Water seems to be seeping up through slab. By the way I did pull up old carpet and pad and did not find any moldy or damp carpet or what appeared to be an old stain, the wet spots smell like dirt.
Thanks

Presumably you have had the leak repaired. You of course would have no idea how long the pipe has been leaking or how much water leaked under the slab. If the pipe was leaking long enough and no where for the water to escape, eventually all of the soil under the slab would become saturated.
Disagree, seems logical to me that the entire slab and the soil under it, would become saturated. Concrete will absorb and hold moisture. Of course I'm not there to see how things are laid out.

Nothing you can do but wait, eventually everything should dry out. Might try to find a moisture meter so you can monitor things.
Might want to invest in some dehumidifiers.