Crews on call 24/7. On-site in about 2 hours across the St. Louis metro. (314) 644-8800
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Mold testing and remediation

Mold grows where moisture stays, so remediation only lasts when the water source is fixed. First Responders tests and inspects, contains the affected area so spores do not spread, removes contaminated materials, cleans what can be saved, and repairs the leak that caused it.

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A real person answers 24 hours a day, 7 days a week.

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  • On-site in about 2 hours
  • Free roof and storm inspections
  • Photo documentation and itemized estimates for your claim

Signs you need mold testing and remediation

  • A musty or earthy smell, especially in basements and closets
  • Black, green or white spots on drywall, wood or grout
  • Past water damage that was never professionally dried
  • Condensation on windows and cold walls

How we handle mold testing and remediation

  1. Inspect and test

    We find where mold is and what moisture is feeding it.

  2. Contain

    Plastic barriers and negative air keep spores out of clean areas.

  3. Remove

    Moldy porous materials are removed. Structural wood is cleaned and treated.

  4. Fix the cause

    The leak, grading or ventilation problem is corrected so mold does not return.

  5. Restore

    We replace what was removed.

From our customers

This is a great company to work with. They were on site within hours of first phone call. Management maintained constant contact until all work was complete which took several months. There were multiple crews all were very professional.

Bill H., Water mitigation · Angi, August 2022

I love they give back to our local law enforcement, I love the work they did, I really loved my overall experience from beginning to end.

BBB reviewer · BBB, July 2023

I had a great experience with First Responders after my kitchen flooded.

Angi reviewer, Water damage · Angi

Mold testing and remediation questions

Can I just bleach mold?

Bleach can lighten surface mold on hard surfaces but does not fix mold in drywall or wood, and it does nothing about the moisture causing it.

How long does mold remediation take?

Most residential jobs take 1 to 5 days, plus any rebuild.

Get a free inspection in St. Louis

Call and a crew is dispatched. We are on-site in about 2 hours, day or night.

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