Mold Testing in Los Angeles
If you suspect indoor mold, start with objective mold testing. Onsite Pro Restoration provides mold testing in Los Angeles for $499 with next-day lab results, an outdoor control sample, and clear written findings. If you’ve noticed musty odors, visible staining, recent leaks, or irritation, our certified inspectors document conditions, collect samples correctly, and maintain chain of custody. You receive an easy-to-read report that identifies spore types and levels, plus practical next steps. Testing is standalone, so you can use the results with any contractor or for a landlord, HOA, or insurer.
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When Mold Testing Is Recommended
Use mold testing when decisions or documentation depend on objective data.
After a leak or flood. You repaired the source but need to confirm indoor air is normal before rebuild.
Musty odors with no visible growth. Odor suggests hidden reservoirs in walls, cabinets, or HVAC.
Stains or spots you can’t identify. Differentiate mold from soot, dirt, or efflorescence.
Recurring symptoms. Occupants report congestion, cough, or irritation that worsens indoors.
Real estate transactions. Buyers or sellers need third-party proof of conditions and scope.
Landlord–tenant or HOA disputes. Create neutral evidence for notices, remediation, or clearance.
Post-remediation verification. Confirm work met targets before containment comes down.
Insurance claims. Establish pre- and post-loss conditions with dated lab reports.
HVAC concerns. Musty supply air, dirty coils, or contaminated returns require baseline air samples.
High humidity or past events. History of leaks, slow plumbing drips, or chronic condensation.
Sensitive occupants. Infants, seniors, or immunocompromised individuals where risk tolerance is low.
When mold testing may not add value:
Obvious active growth with moisture present and remediation is clearly required.
Recently fogged or heavily cleaned spaces (wait 3–5 days to avoid skewed results).
No moisture history, no odors, and no symptoms after a thorough visual inspection and dry readings.
If uncertain, start with a moisture and visual assessment. Test to answer a specific question, not by default.
What’s Included in Our $499 Mold Testing Service
| Service | What’s Included | Base Price | Add-Ons |
|---|---|---|---|
| Air Quality Test |
|
$499 | $150 per additional room |
| Swab Testing |
|
$499 | $150 per additional swab |
Turnaround Time & Reporting
- Next-business-day results if scheduled before 2:00 PM (Mon–Fri)
- After 2:00 PM → results the day after next
- Friday before 2:00 PM → results on Monday
- Friday after 2:00 PM → results on Tuesday
- Results are emailed between 4–5 PM
- Detailed lab report with indoor vs. outdoor comparison, mold types, and concentrations
Our Mold Testing Process: Step-by-Step
Schedule Your Appointment
Book mold testing for a date and time that works. We confirm goals and locations.
Onsite Mold Inspection
Our certified inspector identifies concern areas and collects air or swab samples.
Laboratory Analysis
Samples are analyzed in a certified lab to detect and measure mold spores.
Detailed Report & Consultation
Clear results, interpretation vs. outdoor control, and action steps so mold testing informs decisions.
How to Read Your Lab Report
Cover page. Verify client name, address, date, and mold testing method (spore trap air, swab, or tape). Check number of samples and outdoor control.
Sample IDs. Match each sample to its room/location. Note duration and flow rate for air samples.
Key fields.
Raw count → lab slide particles observed.
Spores/m³ → normalized concentration. Compare to outdoor control.
% composition → mix of genera.
Detection limit → smallest reportable value.
Compare indoor vs outdoor. Indoor totals should be similar to or lower than outdoor. Indoor spikes in a few rooms indicate local sources.
Indicator genera.
Aspergillus/Penicillium types elevated indoors → common with hidden moisture.
Stachybotrys, Chaetomium, Memnoniella → strong water-damage indicators; investigate immediately.
Cladosporium, basidiospores, smuts high outdoors are normal; indoor dominance without outdoor match suggests infiltration or growth.
Tape/swab results. Presence of hyphae, fresh conidiophores, or water-damage genera on building surfaces confirms active or recent growth at that spot.
Context notes. Recent cleaning, fogging, or open windows can skew readings. Review temperature/RH and moisture meter data alongside mold testing results.
Interpretation section. Read the lab’s comments and our summary table: room-by-room callouts, likely sources, and severity.
Next steps. If indicators are elevated: locate moisture, isolate area, and set a remediation scope. If normal: address ventilation or housekeeping and recheck if symptoms persist.
Retention. Keep the full PDF and chain of custody for insurers, real estate, or post-remediation clearance.
Do You Need Remediation After Mold Testing?
Every mold test includes a free remediation inspection, Use mold testing to decide with evidence.
Moisture Source Identification
Pinpoint the leak or humidity driver with moisture meters and thermal imaging. Stop the source before any tear-out.
Mold Remediation Planning
Scope per IICRC S520: containment, negative air, PPE, selective removal, HEPA cleaning, and drying targets. Clear sequence and checkpoints.
Cost Estimate for Remediation
Itemized Xactimate estimate with labor, materials, equipment, and timeline. Options for value-engineered paths when suitable.
Insurance Guidance
Photos, maps, and lab results from mold testing packaged for adjusters. Help with documentation, cause-of-loss notes, and next steps.
Onsite Pro provides more than just mold testing. Our certified team specializes in:
Why Choose Onsite Pro for Mold Testing
Certified Inspectors
IICRC-trained professionals perform mold testing to standard.
Fast, Clear Results
Next-day lab reports with plain-language interpretation and actions.
Tight Chain of Custody
Labeled samples, documented transfer, accredited laboratory processing.
Targeted Sampling Plan
Air, swab, or tape selected to answer your specific question.
Transparent $499 Pricing
Outdoor control, on-site inspection, and consultation included.
Local Los Angeles Expertise
Apartments, condos, and single-family homes across LA microclimates.
Independent Guidance
Standalone mold testing without sales pressure for remediation.
Insurance-Ready Documentation
Photos, moisture readings, floor plans, and lab data packaged for claims.
Easy Scheduling
Weekday, evening, and priority slots available.
Frequently Asked Questions About Our $499 Mold Testing Service
Find answers to common questions about our $499 Mold Testing Service. Learn more about what’s included, the testing process, and how we ensure your home is safe and mold-free. If you have additional questions, our team is ready to assist you.
One indoor and one outdoor air sample, or three swab samples. Additional samples are $150 each.
Results are emailed the next business day if testing is scheduled before 2 PM on weekdays.
Our certified lab identifies a wide range of molds, including black mold and water-damage indicators.
We provide a free remediation inspection and estimate. Learn more about Mold Removal Tips and How to Know if It’s Mold.
Yes. Our lab testing is 99.8% accurate and reviewed by certified analysts.
Call or Text 818.336.1800
Schedule Your Mold Test in Los Angeles Today
Don’t wait until mold spreads further. Protect your home, health, and peace of mind with Onsite Pro’s $499 air quality mold testing. Call 818-336-1800 or click below to schedule your test now.
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