Mold Testing and Bacteria Testing

Trusted Laboratories

Trusted Laboratories

Phone: (905)290-9101
Toll Free: 1-866-813-0648

Worried About Mold?

Click ** Get Your Free Assessment Now!**

  • Home
  • About Us
  • Services
    • Mold Testing
    • Bacteria Testing
    • Legionella Testing
    • Cannabis Testing
    • Antimicrobial effectiveness testing
    • Biological Indicators and Sterilization Process
    • Contract Microbiological Research
    • Environmental Monitoring & Bioburden Testing
    • Material Fungus Resistance Testing
    • Materials Standard Testing
    • Cannabis Licence
  • Accreditation
  • Mold Test Kits
  • View Courses
  • Freebies
    • Live Presentations
    • FREE Mold Inspection Quiz
    • FREE Mold Spore Identification Quiz
  • Resources
    • Chain of Custody Form
    • Ask a Question
    • How to Take Samples
    • Results Interpretation
    • Mold and Bacteria Pictures
    • Jobs
  • Contact us
You are here: Home / Mold / Scared of buying a moldy house? Here is what you should know

Scared of buying a moldy house? Here is what you should know

Dr Jackson Kung'u

Quite often home buyers are confronted by the fact that the home they wanted to buy was said to have mold. Is it okay to buy a house with mold in it? It depends on the extent of mold growth and how much it would cost to restore the house to it’s original condition prior to mold growth. Air samples report indicating presence of mold shouldn’t stop you from buying a house that you liked. Results of air samples alone are not enough to declare a building as having a serious mold problem.

The reality is that no house is mold spores-free since mold spores exist naturally in the environment. It is also important to know that depending on the time of the year, the majority of mold spores in the houses come from outside. These spores settle on various surfaces indoors and if still viable, they only need the right conditions to germinate and develop into visible mold growth.

fungal growth on wood
Visible mold growth

No one want to buy a house that is known to have mold. Hence the presence of mold has a direct impact on the selling price. If you are a seller, failure to address the mold challenge properly prior to putting your home in the market may lead to your house losing value and incurring unwarranted costs.

As a buyer the presence of mold in a house gives you a better opportunity to negotiate for a lower price. The good news is that majority of indoor molds are not likely to affect the structural integrity of the house and therefore removing the mold would restore the home to it’s original condition. But before committing yourself to buying a moldy house, you may consider paying a qualified professional to assess the extent of mold contamination, identify the causes and estimate how much it would cost to rectify the problem. If the reduction in the buying price is higher than the amount you would spend to remove the mold, then there is no reason why you should not buy the house if you liked it.

Remove the Mold Before Occupying the House

If you decided to buy the home, remove the mold before occupying the house. It is easier to deal with the mold problem before bringing in your own stuff. The mold remediation should be performed by a qualified contractor who is familiar with the current mold remediation guidelines.

Damp and humid conditions provide the perfect environment for mold to proliferate. While majority of the common indoor molds don’t necessarily have an immediate effect on the property, if not removed early enough and the moisture eliminated the mold will continue spreading and damaging the aesthetic appearance of the house. Apart from damaging the house, elevated levels of mold spores indoors are a health hazard.

Below are some mold guidelines that a qualified contractor could follow to restore the house to it’s original condition.

1. Mould Guidelines by the Canadian Construction Association

2. Mould Abatement by the Environmental Abatement Council of Ontario (EACO)

3. Guidelines on Assessment and Remediation of Fungi in Indoor Environments by the New York City Department Of Health.

What You Should Know Before Buying the Moldy House

The cost of fixing the mold problem will primarily be determined by the size of the affected area and the location of the mold. If the mold extends throughout the walls or the HVAC system, then the cost may be far much higher than what you would save from a lower sale price.

author avatar
Dr Jackson Kung'u
Dr. Jackson Kung’u is a Microbiologist who has specialized in the field of mycology (the study of moulds and yeasts). He is a member of the Mycological Society of America. He graduated from the University of Kent at Canterbury, UK, with a Masters degree in Fungal Technology and a PhD in Microbiology. He has published several research papers in international scientific journals. Jackson has analyzed thousands of mould samples from across Canada. He also regularly teaches a course on how to recognize mould, perform effective sampling and interpret laboratory results. Jackson provides how-to advice on mould and bacteria issues. Get more information about indoor mould and bacteria at www.drjacksonkungu.com.
See Full Bio
social network icon social network icon

No related posts.

Filed Under: Mold Tagged With: mold growth, mold in home, mold in house

How Much Do You Know About Mold?

Take a 3 minutes Quiz and find out how much you know about mold. To start the Quiz please Click START QUIZ below.

General Knowledge Mold Quiz

General knowledge mold quiz- Try it, it's fun!
Complete the form below to see results
Share your result via
Facebook X Pinterest LinkedIn Email

By the way, we have online mold courses at https://www.mytrainingcourses.ca

« How to Prevent Mold Growth on Cannabis (aka Marijuana)
How and why to keep your carpet mold and bacteria free »

Online Training

Mold Inspection and Lab results
Interpretation Course. Only $279.50

Mold Testing Kits

Use mold test kit to know if your
home is affected by toxic mold!

Bacteria Testing

‪MBL specializes in identification and enumeration of mold and bacteria!

Legionella Testing

Legionella Testing by CALA-accredited laboratory. Call Today!

Laboratory Mold Testing

Mold Testing Laboratory and Indoor Air Quality Analysis!

Mold Inspection Services

For Black Mold Testing, Inspection
& Detection, Call Mold Specialists!

Recent Posts

Is E. coli Airborne? Separating Facts from Myths in Bacterial Sampling

In the world of indoor environmental quality, bacterial contamination often raises questions, especially when dealing with sewage damage. A recent … [Read More...]

 - Mold Testing and Bacteria Testing

Is “Black Mold” Equivalent to “Toxic Mold”?

Is "Black Mold" Equivalent to "Toxic Mold"? No, black mold is not equivalent to toxic mold. "Black Mold" is a term that is often used incorrectly to … [Read More...]

 - Mold Testing and Bacteria Testing

Exploring Non-Tuberculous Mycobacteria (NTM): Understanding Characteristics and Implications

What Are Non-tuberculous Mycobacteria (NTM)? Non-tuberculous Mycobacteria are mycobacteria other than Mycobacterium tuberculosis and M. leprae, and … [Read More...]

Learn With Us…

Courses

  • Mold Inspection, Identification and Control
  • Fungal Spore Identification
  • Mold Inspection Business Course
  • How to take Mold Samples Course
  • Coliform Testing
  • WHMIS
  • INTERESTING KNOWLEDGE QUIZES

Get In Touch

By phone or by email
905-290-9101
Email

Our Location
1020 Brevik Place, Unit 1A • Mississauga, ON L4W 4N7
(Phone: 905-290-9101 • toll-free: 1-866-813-0648 • fax: 905-290-0499.)

  • Email
  • Facebook
  • LinkedIn
  • Twitter
  • YouTube

Search this Site

Recent Posts

  • Is E. coli Airborne? Separating Facts from Myths in Bacterial Sampling
  • Is “Black Mold” Equivalent to “Toxic Mold”?
  • Exploring Non-Tuberculous Mycobacteria (NTM): Understanding Characteristics and Implications

Useful Links

  • Chain of Custody Download
  • Contact us
  • Privacy policy

Copyright © 2025 · Mold & Bacteria Consulting Laboratories. Log in