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Question DetailsAsked on 7/15/2014

Floor tile is extremely warm. The garage floor 2 feet away flooded and the bedroom adjacent to warm tiles flooded.

Just bought house in Broken Arrow. It sits on a slab.

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2 Answers


Sounds like you have a heated slab floor - I would bet you have hydronic (hot water baseboard) heating system, though can also be run off a separate small electric hot water heater unit orsometimes even by recirculating through the hot water heater, probably in the garage either way or utility room if you have one.

If no leaking water pipes or hot water heater in the garage, it is real unusual to run hot water supply pipes for shower and basin and such through a slab, so I would bet about 50:1 it is a hot water floor heating loop system - especially if the entire floor is warm, not just one spot.

Look for a pair of pipes or tubing going down into the slab - probably in the garage along the wall to the bathroom, or maybe under the sink. Should be a shutoff valve (possibly quite small just turn 90 degrees type) on each pipe that you can shut if off with. Or tubing may run down through a wall - look for a pair of pipes or tubing running off from your boiler or hot water heater to the bathroom - should have a shutoff valve and a thermostatic valve. Turn thermostat in the bathroom (or maybe just a switch that appears to operate no fan or light) off and close the valve on the returning pipe where it comes up to the "manifold" of pipes leading back into the boiler.

If significant damage contact your homeowners insurance company - or home warranty company if you have a home warranty. Or if new house, contact general contractor or developer who built it.

For repair, a plumber or HVAC contractor - in some areas HVAC contractors do this type of work most of the time, in others it is plumbers territory. Will probably mean destroying some of the flooring to get at the problem.

Sorry you are having this problem in a new house - and unfortunately, can easily run into the several hundred to five hundred $ range pretty quick by the time the floor is repaired - not to mention any water damage in the garage or bedroom.

Answered 6 years ago by LCD


If the slab foundation house is 20+ years old and the plumbing is copper imbedded in the concrete without any plastic sleeve around it- bad news. Chemicals in the concrete will corrode the copper pipes over time (today plastic pipes are used in concrete) causing leakage. That means all copper. If this is the case there are specialized contractors that use a special coating applied inside the pipes- commonly used in public water supply systems with old cast iron or other materials and is less costly than digging out the old pipes. Not cheap, but may be less costly than a.) jackhammering out all the pipes & replacing or b.) running new PEX piping in the walls to all fixtures

Answered 6 years ago by hosey

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