Can wet carpet really be saved, and is it worth it?
Sometimes. Carpet wet with clean water that is extracted within 24 hours and dried properly can be saved. Carpet pad is almost always replaced because it does not dry well. The cost of extraction and drying equipment versus the cost of new carpet and pad determines whether salvage is worth it.
A small area of clean-water carpet may be worth saving. A whole basement of wet carpet, especially contaminated water carpet, is better replaced. The decision is made from the water type, the timeline and the square footage.
If you keep the carpet, understand that the pad is coming out and the carpet will need to be re-stretched afterward. The cost of extraction equipment, removal of the pad and re-stretching may be close to the cost of new carpet anyway.
Will hardwood flooring buckle if it gets wet?
It can, depending on how long it stays wet and how quickly it dries. Hardwood that is wet for a few hours and then dried carefully and slowly can sometimes be saved. Hardwood wet for a day or more will often warp and buckle no matter what you do.
The wood swells when it takes on water, and if the subfloor underneath is also wet, the wood has nowhere to move as it swells. Once it buckles, it rarely flattens back out. Replacement is often the only option.
If hardwood is staying in place to dry, the subfloor has to be checked and dried first, and the drying of the hardwood has to be controlled and slow. Fast drying shrinks the wood and creates gaps between planks. Slow drying risks continued buckling. It is a hard balance.
What is the cost difference between drying carpet and replacing it?
A small area of clean-water carpet—say, one room—might cost $300–500 in extraction and drying equipment versus $800–1200 in new carpet and installation. For large areas, replacement is usually cheaper and faster than drying.
Replacement also removes the risk that the carpet does not dry well and mold grows underneath. A new carpet comes with a warranty and is a known good. For that reason, many people choose to replace even when drying is possible.
Ask the technician for a side-by-side estimate: extraction and drying costs versus replacement costs. Then factor in the risk and the timeline and decide what makes sense for your situation.
If the subflooring is wet, does the carpet above it have any chance?
The carpet cannot dry properly if the subfloor below it is wet, because water will wick up into the carpet from underneath. Subflooring has to be assessed for saturation and drying potential. If the subfloor is particle board that is soaked, it usually has to come out and be replaced. Only if the subfloor is drying well can the carpet above it dry properly.
This is why drying a finished basement is complicated: the carpet depends on the subfloor, which depends on any framing or concrete below that, all drying in sync. The slowest-drying layer sets the pace for everything above it.
A flooded basement usually means new subflooring and new flooring. Salvage of old materials is the exception rather than the rule.