After finding a saturated subfloor and mold/mildew under damp bedroom carpet, the remediation guy says the subfloor and carpet both have to go, the drywall pulled out to check for mold, the air scrubbed...he does the take out work and another contractor of my choice does the put-back work. There is no evidence of mold in the crawlspace. I know that first of all I have to stop the source of the leak. Does the remediation guys approach seem reasonable? I'd be grateful for any comments or input.
Thanks.

That's the way I was trained to deal with it. Just be sure you or they find the source of the moisture problem and fix it. If you don't, you'll be back where you started in a few months. You should also insist on some kind of air quality test both before and after the job to make sure they did their work properly.

Fortress Environmental Solutions
www.fortressusa.com

I diaagree that the subfloor must be removed. If the leak is repaired, the floor will dry and not support mold growth. The presence of a hazardous mold species has not even been identified. The plywood floor can be disinfected or primed after it dries and will not likely be a problem again. Pourous materials like carpet or rugs are another matter. The wall can be inspected in a small location to minimize damage to determine if a problem exists. Depending on the origin of the water, the likelyhood of a wall problem can be judged. Besides, unless there is visible evidence of wall damage, its ridiculous to assume water damage is concealed; and its more preposterous to assume that it poses a hazard. Its IN the wall and cannot expose you. Drywall almost always shows stains or weak spots when water damaged. Leave it alone.

Mold spores are forever present in the environment. Your sensitivity to the condition should dictate how aggressively you go after the problem.

Once the area is dry, make a decision whether less drastic measures are suitable. The mold contaminated surface can be treated, sealed etc. Air scrubbing? Pointless. Once the mold is gone, the natural air exchange (ventilation) will restore the room to ambient levels of spore contamination. Anyone can be a mold specialist with a few hours of class time. Its become a great business. Understanding risks and minimizing costs to achieve acceptable risk levels takes a bit more expertise.

Thanks for your help-I appreciate it.