SoCal Mold Guide

Testing vs. Remediation

These are two different jobs. Treat them that way.

"Mold company" is doing a lot of work in that sentence. Testing (finding out if, where, and how much mold you have) and remediation (removing it and fixing the cause) call for different tools, different training, and happen at different stages of the process.

What each job actually involves

A mold inspector does a visual inspection, moisture mapping with a meter, and often air or surface sampling sent to a lab — you get back a written report of findings. A remediation crew does containment, physical removal of affected material, HEPA air filtration during the work, and — the part that actually prevents a repeat problem — fixing the moisture source that let the mold grow in the first place.

Some companies offer both under one roof, which can be convenient for a straightforward job. For anything you're uncertain about, or where insurance or a real estate transaction is involved, getting the testing and the remediation from separate providers gives you a second, independent set of eyes on the results before any repair work starts.

Providers serving Southern California

A non-exhaustive starting list, grouped by what they focus on. Always confirm current licensing, IICRC certification, and service area directly before hiring.

Independent testing & inspection

Focused on diagnosis: inspection, moisture mapping, lab-based sampling.

Testing & remediation

Mold Test Company Southern California

Air-quality testing and inspection provider operating across the greater LA area; also offers referrals to remediation partners.

Remediation & restoration

Focused on removal, containment, and repair once a problem is confirmed.

National franchise

ServiceMaster Restore

National restoration franchise with several Los Angeles-area locations offering mold, water, and fire remediation.

National franchise

Pure Maintenance

Franchise network offering a demolition-light mold remediation method as an alternative to full tear-out in some cases.

Local, independent

Monroy's Father & Son Restoration

Family-owned local restoration company serving the LA area for water, fire, and mold damage.

A sensible order to work in

  1. Get a written inspection or test report first, so you're working from documented findings rather than a verbal impression.
  2. Get remediation quotes based on that report — it gives every bidder the same scope to quote against.
  3. Re-test after remediation (clearance testing) to confirm the work resolved the problem before closing out payment or an insurance claim.

Curious what California requires sellers and landlords to tell you about mold before any of this? See California mold disclosure law.