On non porous surfaces, mostly. On drywall, wood, and grout, the materials mold actually eats, bleach's water soaks in while its active ingredient stays at the surface, and the growth returns. Removal of the affected material is the remediation; chemistry is the supporting act.
Prefer to talk later? Leave your details and an independent local pro will call you back. No charge to you, no obligation.
Manhasset Bay Mold Removal is a free referral service. Submitting this form connects you with independent local contractors who provide the work.