Mold Inspection and Testing

Mold Inspection & Testing

Los Angeles Mold Testing, Checks and Inspections

The Most-Trusted Mold Inspection Specialist in Greater Los Angeles

Nobody Knows Mold Like Rapid Response!

All Rapid Response Mold Testing in Los Angeles, our inspectors, consultants, and project managers are all certified to test for mold. It’s necessary to employ the services of a qualified and accredited mold inspector or mold assessor to protect your liability, property and safety.


As professional inspectors in Los Angeles, our mold inspection scope includes detailed knowledge of HVAC systems, roofs, exterior structures, and plumbing systems.  We investigate musty odors, infiltration of moisture through a roof or plumbing leak, or even signs of suspected mold in places known to be prone to mold growth. When mold is detected, our certified mold inspector will try to detect the moisture that causes the mold and discuss a remediation plan with the household owner.

When to Check for Mold in Your LA Home

Mold grows everywhere in Los Angeles, and indoor mold growth is most frequently visible and obvious to everyone but often there is mold growing behind walls and in hidden cavities like ductwork that is not openly visible.  Finding mold in cracks and corners of your walls probably means more spores are growing and spreading. 


According to Medical News Today, there are over 300,000 known types of mold. Mold can also survive and thrive in places you can’t see and can also create colonies that are so small they evade the eye. It takes 24 to 38 hours for molds to germinate and grow under ideal conditions (optimal temperature and moisture level). The spores generally start colonizing in 3 to 12 days, and are seen in approximately 18-21 days. We recommend scheduling an inspection in the following situations:

  • Buying a new home. There’s no way to say exactly what type of water damage could have happened in the house you plan to buy. A mold inspection is the only way to find out if mold is present.
  • Returning to an unoccupied building. Humidity may have accumulated inside a house when it was locked and left unoccupied for months to years. In warmer areas with high humidity, in particular, this is a problem.
  • Experiencing health symptoms. If you have an allergy-like runny nose, sneezing, or eye irritation in a certain space or house, there may be mold in that area.
  • Recovering from water damage. You need to inspect for mold if your basement flooded, the roof leaked, or water dripped in any part of the house through a broken pipe. Any spot that was wet and not dried (within 24 to 48 hours) may become contaminated by mold.
  • Following a mold removal/remediation. If you’ve taken the sometimes costly and difficult steps to deal with a mold problem, post-remediation inspections are a good idea to make sure all of the mold was removed.
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Health-Related Warning Signs of Mold

Mold may be unpleasant or dangerous, especially for someone with respiratory issues. That is why it is better to leave bigger contaminations to mold inspection professionals in Los Angeles with the right safety gear and cleaning equipment.  Here are some health signs that you made have a mold problem:

Sore, itchy throat

Itchy, watery eyes

Sinus headaches

Congestion and runny nose

Wheezing and difficulty breathing

Irritated, itchy skin

Mold Inspection vs. Mold Testing

The molds inspection simply identifies the presence of mold and defines the extent of the problem while mold testing tries to determine which specific mold type is in your home and how many spores are in the air. Even indoor spaces have mold spores coming from the outside, and mold tests are usually a long list of species, most of which are not developing inside the home. 


With our air quality testing, tape and swab sampling, we take samples for the presence of mold from either the air or the home’s physical locations. Once the samples are taken, they’ll be sent for analysis to a laboratory. Testing ensures the regulated conditions necessary for performing a proper scientific mold test.

Our Mold Inspection Process & Timeframe

At Rapid Response Mold Testing of Los Angeles, we live up to our name.  We are able to rapidly respond to your request for a mold inspection either the same day or within 24 hours of receiving your call. The inspection itself lasts around an hour or so from start to finish.  Our process includes:

A visual inspection of your home or building.

A discussion with you about places where mold has been found and where moisture or water problems in the past have occurred. This includes an assessment of the property‘s history and documented mold or moisture issues.

A thorough inspection of the areas including inaccessible areas such as behind drywall and in your HVAC ducts if mold is suspected. We check for leaks and water damage by the water host connections in kitchens and bathrooms.

A detection of the moisture that causes the mold including direct humidity testing of suspect building materials, windows, doors, plumbing equipment and other possible water intrusion areas.

Collecting samples of mold to be sent for testing and analysis as well as Indoor air quality evaluation and testing.

Next Steps After Your Los Angeles Mold Inspection

After you receive your comprehensive mold inspection and testing report, we will guide you on the next steps to remove and remediate the mold detected.  Our reports contain all of our findings, photo support, maintenance tips and an action plan to resolve any issues which can include floor plan drawings of affected areas and recommendations for plumbing repairs, mold removal, and mold remediation. 


At Rapid Response Mold Testing, we pride ourselves on the transparency of conducting an inspection with no unnecessary recommendations that would inflate the cost of the removal or remediation.  By having a different company perform this step based on our findings, you can be assured that our report is honest and thorough.  We offer referrals if requested and can educate on what you should expect from a professional mold remediation process.


Once you have the mold removed and remediated, Rapid Response Mold Testing is available for a post-remediation inspection to ensure that the mold has been effectively and completely removed.

Cost of Mold Inspection in Los Angeles

The costs of mold inspection can vary considerably in different regions, including in our Los Angeles and Houston locations. Mold inspection costs about the same as standard home inspection completed when you purchase a new home. 


The cost of your mold inspection will depend on the size of the area being inspected (more square footage takes longer to inspect) and whether or not we are required to remove or destroy parts of the property (such as drywall or panelling) in order to complete the inspection.  Call us to learn more about our affordable and upfront pricing.

Why Choose Rapid Response Mold Testing?

Rapid Response Mold Testing was developed with one specific aim in mind: offering high-level, reliable, skilled, mold inspection, mold testing and mold remediation services to people living with mold problems in the Los Angeles, CA area.  There are just some of the benefits of trusting us with your mold inspection and testing:

  • Rapid Response. It's our name and we mean it. If you contact us, we are committed to responding immediately. A rapid response reduces the damage, and lowers costs. During your initial call, our certified inspector will ask you a series of questions to decide what is going on to benefit you better.
  • Details, details, details. We take pride in offering comprehensive and cost-effective inspection and testing services with an emphasis on using measurements on-site wherever possible. We also explain to you what we do, and do not cover within our contract. The key reason to address limitations is to create reasonable objectives in advance, so that there will be no surprises later.
  • Licensed. We are licensed for post mold remediation inspection and clearance services, asbestos testing, and lead based paint testing.
  • Trained & Experienced.  Since 2007, our professionals have been trained to know how to handle any mold situation in a safe way. We use specialized technology including moisture meters, hygrometers, and infrared cameras.
  • Certified. Our inspectors have certifications in mold inspection, water damage restoration, infrared technology and more. We are a certified CMI (Certified Mold Inspector) with InterNACHI®CMI (International Association of Certified Home Inspectors).
  • Satisfaction Guaranteed. We have an A+ rating with the Better Business Bureau and exemplary reviews from our customers.
For more information or to schedule an appointment, call us at (888) 387-4855 or visit our contact page.

Schedule Your Appointment!


For more information or to schedule an appointment, call us at (888) 387-4855 or fill out the form below.

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Schedule Your Appointment!

For more information or to schedule an appointment, call us at (888) 387-4855 or fill out the form below.

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