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Professional Mold Inspection Services for Ontario Homes and Businesses

What are you breathing? With HouseMaster's mold testing services, homeowners and potential buyers in Ontario, CA, get a complete picture of what mold spores may or may not be lurking in a property. Mold significantly impacts indoor air quality (IAQ) and poses risks to health, especially for individuals with asthma or respiratory conditions.

Our certified professionals use advanced techniques to identify mold growth and assess air quality in residential and commercial properties. We are backed by the Neighborly Done Right Promise® for guaranteed satisfaction. Book your Ontario mold inspection service with us and take control of your space with confidence.

Professional Mold Inspection Services for Ontario Homes and Businesses
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  • Our inspectors conduct a detailed visual inspection and a moisture detection process. They will focus particularly on common problem areas such as bathrooms, basements, and open crawl spaces. When mold is found, samples are collected and analyzed in a lab. This provides you with an actionable report on mold types and spore levels and guides you to appropriate remediation.
  • Discovering that mold is present can help you mitigate the situation and prevent immediate and long-term health risks. Mold spores and other irritants can cause serious respiratory issues, especially if you, a family member or a house guest has an underlying medical condition such as asthma. Mold inspection lets you find out if your home has dangerous spores and what needs to be done about them.
  • In some areas, our inspectors are also able to offer you an additional indoor air quality (IAQ) inspection. This comprehensive approach measures other airborne contaminants, such as allergens and mold, as well as humidity levels, using both an indoor air sample and an outdoor air sample as a control. Ask about IAQ assessments and possible radon testing.

    Contact us today to experience the difference in exceptional mold inspection services.

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Commercial and Residential Indoor Air Quality Testing

The process for our mold and indoor air quality testing services was built on collaborative feedback from hundreds of HouseMaster locations nationwide. It’s designed to deliver conclusive, actionable results. Air quality testing may vary in your area. Contact your local HouseMaster for details.
  • Step 1
    Visually check for mold, focusing on high-moisture areas of the home.
  • Step 2
    Take surface samples of any mold found and send them to the lab for analysis.
  • Step 3
    Measure current particulate levels of dust existing in the home.
  • Step 4
    Assess mold risk factors: poor ventilation or signs of water damage or chemical contaminants.
  • Step 5
    Perform IAQ testing (if ordered).
  • Step 6
    Gather all results of testing analysis and compile the report, including recommendations and resources.

Ontario's Professional Mold Inspectors Are Just a Call Away


HouseMaster mold inspectors are located all across North America, including Ontario, CA. We're ready to help you find out what, if any, contaminants are in your home — helping keep you and your family safe. Schedule an appointment online with our professionals for mold inspection services.
Ontario's Professional Mold Inspectors Are Just a Call Away

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Before You Call It Home, Call HouseMaster

Nothing provides peace of mind like a professional home inspection. Our experienced team evaluates readily accessible elements of the property to develop a clear picture of the integrity and condition of home systems. This will allow you to anticipate possible immediate and long-term maintenance and repair needs.

Frequently Asked Questions Mold Inspection Services:

  • Your inspector will thoroughly investigate your Ontario, CA, home, completing a visual inspection for mold and sending any found samples off to a laboratory for expert analysis. They will also look for risk factors for mold, like water damage or signs of chemical contamination, and may test your indoor air quality (IAQ) as well.

The HouseMaster Difference

With HouseMaster, you will receive more than a home inspection report. We go the extra mile by offering a limited reimbursement guarantee, a service to connect your home services and utilities, deals on home improvement retailers and services, and a digital platform to manage your home. This is all part of your home inspection experience with us.

Schedule an inspection to experience this for yourself!

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    Limited Reimbursement Guarantee*

    Our Limited Reimbursement Guarantee is straightforward: if any element of your home that our home inspector deems satisfactory fails within 90 days, we’ll reimburse you for the repair.
    *Not available in all areas. Terms and conditions apply.
    Limited Reimbursement Guarantee*
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    HouseMaster Connects

    HouseMaster Connects is your single source for connecting all your home services – from researching services for your new address, to figuring out the logistics in connecting your new services, we’ve got you covered.
    HouseMaster Connects
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    Buyer Benefits

    Through an online marketplace, HouseMaster customers gain access to special offers from retailers, Neighborly service providers, and more!
    Buyer Benefits
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    HouseMaster Cloud®

    HouseMaster Cloud is your source for your inspection report and accompanying images. We also have a repair list generator and repair calculator making it easier to prioritize and budget for your home.
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    You may not consider a seller inspection to be a worthy expense before you sell your home, since you may be in a hot market and it could cost you time and money if an expensive issue crops up.

Join Our Team

"Home Inspections. Done Right." That's our mantra, not only for our customers, but also you, a future team member!

Start your career with us today. We offer exciting opportunities for growth and success in the home inspection industry.
Home Inspections. Done Right.

Inspiring confidence in every homebuyer.