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Downey, CA

Mold Inspection and Testing in Downey, CA

Downey, CA has 9 mold inspection and testing companies in our listings, 3 list themselves as open 24 hours and the most reviewed is Water Champ with 10 reviews.

9 Companies Doing Mold Testing Work in Downey

  1. 1

    IndoorAir Mold Assessment Specialists

    8613 Firestone Blvd · Downey 0.0 mi

    No public reviews yet

    Verified Remediation Pro

    Water DamageMoldMold Testing

  2. 2

    Southland Restoration

    8504 Firestone Blvd #461 · Downey 0.2 mi

    No public reviews yet

    Verified Remediation Pro

    Water DamageMoldMold TestingFire and SmokeSewage

  3. 3

    Water Champ24/7

    10919 Downey Ave · Downey 0.4 mi

    Google rating 5.0 from 10 Google reviews Yelp 2.5

    Highly Rated 2026

    Water DamageMoldMold TestingFire and SmokeSewage

  4. 4

    Downey CA Mold Removal

    8253 Phlox St · Downey 0.5 mi

    Google rating 5.0 from 6 Google reviews

    Verified Remediation Pro

    Water DamageMoldMold Testing

  5. 5

    Eye Inspection Eagle

    10630 Downey Ave · Downey 0.6 mi

    No public reviews yet

    Verified Remediation Pro

    Mold Testing

  6. 6

    Eagle Eye Property Inspections

    11445 Paramount Blvd · Downey 0.8 mi

    Google rating 5.0 from 7 Google reviews

    Verified Remediation Pro

    Mold Testing

  7. 7

    RiseGuardX24/7

    12118, 12070 Lakewood Blvd · Downey 0.8 mi

    No public reviews yet

    Verified Remediation Pro

    Water DamageMoldMold Testing

  8. 8

    Rainbow Restoration of Downey and Bellflower

    9716 Washburn Rd · Downey 1.2 mi

    No public reviews yet

    Verified Remediation Pro

    Water DamageMoldMold TestingFire and SmokeStorm

  9. 9

    Mentor Mold Removal & Remediation Downey CA24/7

    9901 Paramount Blvd #121 · Downey 1.2 mi

    Google rating 4.5 from 2 Google reviews

    Verified Remediation Pro

    Water DamageMoldMold Testing

Hire an Independent Inspector

A mold inspector tells you whether you have a problem, where it is and what caused it. A remediator removes it. When the same company does both, it has a reason to find mold. If you can, hire an inspector who does not do remediation, and ask the remediator to follow that inspector’s written plan.

Ask the inspector what the visit includes. A good one looks for the moisture source first, uses a moisture meter and often a thermal camera, and only takes air or surface samples when the result will change what you do. After the work, a clearance test by the same independent inspector shows whether the job is done.

How to read a mold lab report

Can You Handle It Yourself

Call a pro

Home test kits that grow spores in a dish almost always grow something, because mold spores are everywhere. They cannot tell you whether you have a problem. A moisture meter and a flashlight will tell you more for less money.

Read the step by step guide

Reviews on Other Sites in Downey

On Angi

We did not find an Angi profile we could match to a company here yet.

BBB

We did not find a BBB profile we could match to a company here yet.

Also matched here, 1 on Yelp. Those show on each company row above.

A BBB profile is a listing with the Better Business Bureau. It is not the same as BBB accreditation. We only list a profile when its name and city match the company.

What It Costs Around Downey

Prices in the Los Angeles-Long Beach-Anaheim, CA area run about 14 percent above the national average, so local jobs tend to cost more than the national figures.

JobTypical in DowneyNational typical
Mold Inspection and Testingper visit, a visual inspection$225 to $700$200 to $600
Mold Inspection and Testingper visit, an inspection with samples$350 to $1,150$300 to $1,000
Mold Inspection and Testingper visit, a clearance test$350 to $900$300 to $800

Full Los Angeles County cost guide

Questions to Ask Before You Hire

  1. Do you also do remediation? If so, who checks your work?
  2. How many air samples will you take, and will you take an outdoor control sample?
  3. Which lab analyzes the samples, and is it accredited?
  4. Will the report include moisture readings and photos, not only lab numbers?
  5. Are you licensed as a mold assessor where this home is?

Guides for This Job

Questions People Ask

How many mold inspection and testing companies serve Downey?
We list 9 companies in Downey, CA. All of them list a street address.
Which mold inspection and testing companies in Downey are open 24 hours?
3 list themselves as open around the clock, including Water Champ, Mentor Mold Removal & Remediation Downey CA and RiseGuardX. Hours are self reported, so call to confirm someone answers at night.

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Restoration Companies in Downey, CA

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