Mold inspection
- Moisture detection
- Infrared technology
- Certified mold inspectors
- No conflict of interest
Certified mold inspection and testing in Ontario. Same-day appointments, lab-verified reports, and no financial stake in any remediation work that follows.
(909) 914-4552What We Do
Air and surface samples analyzed in a state-certified lab. You receive mold species ID, spore count data, and lab-verified documentation that holds up with insurers, attorneys, or counsel.
About
At 24H Mold Inspection of Ontario, we know no two buildings respond to moisture the same way.
Ontario serves as one of the Inland Empire’s largest residential, commercial, and logistics hubs, combining established neighborhoods, master-planned developments, industrial facilities, and major transportation infrastructure. While the region’s climate is relatively dry, moisture issues remain common due to slab foundations, plumbing leaks, roof failures, and extensive air-conditioning use during prolonged periods of hot weather. The city’s rapid growth has created a diverse building inventory ranging from older residential areas to newly constructed developments, each presenting distinct moisture challenges. As a result, mold concerns in Ontario are often driven by building-specific conditions rather than outdoor humidity alone.
Ontario contains suburban homes, master-planned communities, apartment developments, industrial facilities, warehouses, and commercial properties. HVAC systems, slab construction, and rapid-growth development patterns frequently influence moisture conditions.

Services
Mold inspection, mold testing, and environmental risk assessments for Ontario properties. Available 24/7, with no remediation work to bias the findings.

Why Us
24H Mold Inspection of Ontario combines local field experience with state-certified methods and lab analysis. Reports get back to you quickly and clearly, with no upsell tacked on to the findings.
We don't stop at surface-level findings. Active leaks, health symptoms, post-remediation work, and pre-purchase due diligence each call for a different inspection approach. Our certified mold inspectors guide you through the specific situation rather than running a generic checklist.
Strengths
We check every box, then go further. Book your inspection today
Licensed inspectors with proven field experience in Ontario.
FLIR thermal cameras, calibrated moisture meters, and lab-verified sampling.
Straightforward updates and honest reporting throughout the process.
Highly rated by Ontario homeowners and businesses.
5 Step Process
Choose a date and time that fits your schedule.
Flexible scheduling means same-day and next-day appointments are usually available, with 24/7 emergency response when the situation needs it.
Our certified mold inspectors assess every mold-prone area.
We walk the property identifying visible mold and moisture issues, using thermal imaging and moisture meters to catch what's hidden behind walls and under flooring.
Air and surface samples collected for lab analysis.
Our certified mold inspectors collect targeted samples from key areas to find mold spores both visible and hidden, with sample sites documented on a property map.
Lab testing returns precise results.
Samples go to a state-certified lab for detailed analysis identifying mold species and contamination levels, typically returned within 24 to 72 hours.
Insights and clear next steps from our experts.
You receive a written report with lab results, inspector findings, and specific recommended action steps to resolve any mold issues safely.
Who We Serve
24H Mold Inspection of Ontario brings clear answers to HOAs, hotels, commercial buildings, and homes through certified mold inspection and testing services.
Contact
Tell us what's going on and we'll respond the same day
Location
24H Mold Inspection of Ontario
Phone
(909) 914-4552Service area neighborhoods
Newsletter
Monthly notes from our inspectors on prevention and air quality.