Mold Testing Service Orego
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Mold Testing Services of Oregon (MTSO), is based in Portland and specializes in mold inspections and mold testing in residential and light commercial properties. Our mold inspection and testing services are used by a variety of clients including home/business owners, property buyers/sellers, tenants/landlords, and realtors.

Using laboratory grade equipment, we provide a vast array of mold testing services to meet your specific needs and budget. We perform comprehensive mold inspections using state of the art technology to pinpoint areas of concern without causing damage to your residence or commercial property. Mold Testing Services of Oregon (MTSO), is based in Portland and specializes in mold inspections and testing in residential and light commercial properties.

We are an inspection and testing company only and therefore have no financial stake in any findings.
Services
Hi, my name is Garrett Dayfield and I am the proud owner and operator of Mold Testing Services of Oregon. I was raised in NE Portland and am a second-generation mold inspector. MTSO was founded by my father in 2002 and at that time, was one of the first companies to provide residential mold inspection and testing.
Each project begins with a discovery call where we discuss pertinent details such as project location, background and client concerns. With this information we can tailor an accurate quote to fit your mold inspection and testing needs. Upon arrival at your residence or business, we will tour the site with the client to view areas of concern.
Using a calibrated Zefon Bio-Pump Plus in conjunction with Air-O-Cell cassettes, air sampling is used to measure the genera and quantity of airborne mold spores within the target area. A minimum of one air sample from outside the structure is required for comparison purposes. Standard turnaround time is 2-3 business days.
Pre-Testing is recommended when a mold problem has been identified but prior to initiating a mold remediation. This service is useful to measure and record the types and quantity of mold spore activity prior to any remedial activities. Such information helps document a professional response and sets a baseline of mold spore activity before the remediation contractor has begun.
Every project is unique, just like the clients we assist. Are you curious about our services and whether they are the right fit for your project? Give us a call and we can quickly generate an accurate quote to meet your specific needs and budget. If after speaking, it is determined that another professional may a better fit for your project, then we can provide contact information for such a company.
Reviews (8)
Chris Canazaro
Chris Canazaro
Jan 26, 2022
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Positive: Professionalism, Quality, Responsiveness, Value
Garrett was great to work with. He was responsive and through helping us to discover an issue in our attic which wasn't the reason we asked him to look at and has helped us spot an issue before it became a much bigger problem. I would definitely call MTSO again!
Tania Olson
Tania Olson
Dec 30, 2021
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Garrett did an excellent job for us. He went above and beyond helping my college age daughter by inspecting her rental house. He listened to all the concerns we had and did a throughogh inspection. His identification of other issues in addition to mold and the report he wrote helped us get our daughter out of an unsafe house. He is a skilled professional and a thoughtful person that was available quickly when we needed help.
Shalamar Clark
Shalamar Clark
Nov 29, 2021
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I'm in the process of clearing out my basement and knew I had to address areas of mold before starting the project. I called Garrett to inspect the basement and he showed up on time, wore proper mask covering and was ready to go. He looked through the entire space and highlighted areas that needed attention. He gave recommendations on how to fix the mold and provided contacts to local service companies that could help. Overall, it was a great to get his professional eye and talk through solutions. I would highly recommend.
Joyce Tufts
Joyce Tufts
Oct 04, 2021
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Garrett knows his stuff!. He punctual, informative and a really pleasant guy. If you need to know if you have mold that needs remediation, he's your guy. He fit our mold test in quickly, within the 10 day grace period we had to know what is needed before we sign on that dotted line when buying a house. It was a real pleasure to meet him. If we ever need another mold test, we'll call Garett at MTSO!
Aphrodite Kafouros
Aphrodite Kafouros
Aug 05, 2021
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Positive: Professionalism, Quality, Responsiveness, Value
MTSO - what a great experience working with Garrett on having some air and mold samples taken from an apartment my family was living in. Testing was quick and easy and I got the results back much faster than I anticipated. 100/10 - highly recommend!!! Yes, 100/10!
Jessica Landers
Jessica Landers
Jun 19, 2021
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I called mold testing services to look at our apartment. Garrett was the one who serviced our unit. He was on time, very professional and made sure he explained the process. He let us know how long it would take to get results. I would refer mold testing services of oregon to anyone i know because of the experience I had! They are absolutely fantastic!
Crista Williams
Crista Williams
Oct 30, 2020
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We hired Garrett from Mold Testing Services of Oregon to come and inspect our apartment after we had a mold issue in our baby's room. Very responsive and professional. He was extremely thorough and found more issues in the apartment that we had even known to look for. He advised us on our options for documenting and testing what was found in our rental and wrote a very thorough report. I am so grateful that we hired him and I was able to get my baby out of that environment. Thank you for helping me keep my baby safe.
Janis Sandlin
Janis Sandlin
Oct 18, 2020
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Positive: Professionalism, Quality, Responsiveness, Value
I HIGHLY recommend Mold Testing Services of Oregon! Garrett is so professional and thorough and really took time to explain his methods and answer all of my questions in great detail. He is very knowledgeable regarding his trade and he was able to get my appointment booked the next day! Very courteous and wonderful local business!