Top-rated mold testing and remediation specialists.

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There are 14 highly-rated local mold testing and remediation specialists.

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TRUSTED BY MARRIOTTSVILLE, MD HOMEOWNERS

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    Average homeowner rating
  • Verified reviews icon24
    Verified mold testing and remediation services reviews

Find Mold testing and remediation specialists in Marriottsville

Wilbur Hull Nano Cleaning Solutions, LLC

4.88(
182
)
Approved Pro

Wilbur Hull Nano Cleaning Solutions, LLC

4.88(
182
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
22 local quotes requested

We are professional service providers that take pride in our work. We work hard to provide the best service possible with integrity and accountability. We would love to help you so give us a call today!

"Saved our lives and Mr.Will is a great man! Thank you for helping us and quickly. "

Shanelle M on September 2025

We are professional service providers that take pride in our work. We work hard to provide the best service possible with integrity and accountability. We would love to help you so give us a call today!

"Saved our lives and Mr.Will is a great man! Thank you for helping us and quickly. "

Shanelle M on September 2025


Avatar for Mold Test Company MD-DC

Mold Test Company MD-DC

4.37(
27
)
Approved Pro

Mold Test Company MD-DC

4.37(
27
)
Approved Pro
Customers say: True professional
248 local quotes requested
10 years of experience

At Mold Test Company, we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"They were prompt, thorough, and provided what I needed. They gave the report results by phone and by email. "

Lawrence E on August 2025

At Mold Test Company, we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"They were prompt, thorough, and provided what I needed. They gave the report results by phone and by email. "

Lawrence E on August 2025


Avatar for Chesapeake Restoration and Cleaning, Inc.

Chesapeake Restoration and Cleaning, Inc.

4.85(
221
)
Approved Pro

Chesapeake Restoration and Cleaning, Inc.

4.85(
221
)
Approved Pro
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
41 local quotes requested

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs in all our air quality testing services. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Quick and efficient service. Everything was explained to me thoroughly and had all my questions answered. Would recommend!"

Tasha S on October 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs in all our air quality testing services. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Quick and efficient service. Everything was explained to me thoroughly and had all my questions answered. Would recommend!"

Tasha S on October 2025


Avatar for MoldGone LLC

MoldGone LLC

4.87(
964
)
Approved Pro

MoldGone LLC

4.87(
964
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
671 local quotes requested

MoldGone is a full service mold inspection, air quality testing, remediation, and reconstruction company with over a decade of experience. Our inspectors and technicians carry the highest and most recognized certifications in the industry. Whether your are a residential or commercial customer seeking mold testing or remediation services you can be assured that the project will be professionally managed and properly certified. There are many companies that offer mold remediation - make sure that the company you choose has an industry recognized mold remediation or inspection certification such as the American Council of Accredited Certification (ACAC) or equivalent. MoldGone is unsurpassed in its commitment to customer service excellence, provision of only the highest caliber service, and providing unsurpassed value in every project or inspection delivered. MoldGone's customers have ranged from the residential homeowner to private schools and churches. In fact, when the Sisters at a private Catholic girls school in the Washington, D.C. area needed a company to treat mold in the Sister's private archive room, complete with 100 year-old manuscripts, they entrusted MoldGone, LLC to do the project. On another project that involved removing mold from a 30 foot ceiling above a filled indoor pool, when the scaffolding company wanted several thousand dollars to build the necessary scaffold to reach the treatment area MoldGone built its own providing the customer significant savings. At MoldGone, LLC. we constantly strive to find the most cost effective way to fully address each and every mold condition. MoldGone technicians are trained specifically for mold treatment and remediation. They are also required to have construction experience since many of our projects involve demolition and reconstruction. Technicians are held to the utmost highest levels of quality with each project receiving a thorough walkthrough by management before it is deemed complete.

"Went okay"

Brandon B on September 2025

MoldGone is a full service mold inspection, air quality testing, remediation, and reconstruction company with over a decade of experience. Our inspectors and technicians carry the highest and most recognized certifications in the industry. Whether your are a residential or commercial customer seeking mold testing or remediation services you can be assured that the project will be professionally managed and properly certified. There are many companies that offer mold remediation - make sure that the company you choose has an industry recognized mold remediation or inspection certification such as the American Council of Accredited Certification (ACAC) or equivalent. MoldGone is unsurpassed in its commitment to customer service excellence, provision of only the highest caliber service, and providing unsurpassed value in every project or inspection delivered. MoldGone's customers have ranged from the residential homeowner to private schools and churches. In fact, when the Sisters at a private Catholic girls school in the Washington, D.C. area needed a company to treat mold in the Sister's private archive room, complete with 100 year-old manuscripts, they entrusted MoldGone, LLC to do the project. On another project that involved removing mold from a 30 foot ceiling above a filled indoor pool, when the scaffolding company wanted several thousand dollars to build the necessary scaffold to reach the treatment area MoldGone built its own providing the customer significant savings. At MoldGone, LLC. we constantly strive to find the most cost effective way to fully address each and every mold condition. MoldGone technicians are trained specifically for mold treatment and remediation. They are also required to have construction experience since many of our projects involve demolition and reconstruction. Technicians are held to the utmost highest levels of quality with each project receiving a thorough walkthrough by management before it is deemed complete.

"Went okay"

Brandon B on September 2025


Wilbur Hull Nano Cleaning Solutions, LLC

4.93(
14
)
Approved Pro

Wilbur Hull Nano Cleaning Solutions, LLC

4.93(
14
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
165 local quotes requested

Professional Mold remediation services at affordable prices! We have the experience and dedication to get the job done right! Specializing in Mold Testing and Remediation services, we guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click to schedule a free estimate today!

"The job was done timely. They kept in touch with us regarding the arrival time. If I paid with cash, the total due was less than paying with check. "

Larry W on December 2025

Professional Mold remediation services at affordable prices! We have the experience and dedication to get the job done right! Specializing in Mold Testing and Remediation services, we guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click to schedule a free estimate today!

"The job was done timely. They kept in touch with us regarding the arrival time. If I paid with cash, the total due was less than paying with check. "

Larry W on December 2025


Avatar for Eco Pro Restoration

Eco Pro Restoration

4.74(
99
)
Approved Pro

Eco Pro Restoration

4.74(
99
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
41 local quotes requested

We are a locally owned and family operated in Baltimore, MD. Our company has been in service since 2000 and we have over 35 years of collective experience in the industry. Our company is one of the few companies in the area that offers Particle Testing. We accept all insurances. Do not let the your insurance company tell you what remediation company you should use. It is your right to choose your own. We look forward to hearing from you.

"They were wonderfully efficient and helpful. They came very quickly and assessed our situation and then gave us good advice. I would definitely recommend this company."

Tamar S on May 2025

We are a locally owned and family operated in Baltimore, MD. Our company has been in service since 2000 and we have over 35 years of collective experience in the industry. Our company is one of the few companies in the area that offers Particle Testing. We accept all insurances. Do not let the your insurance company tell you what remediation company you should use. It is your right to choose your own. We look forward to hearing from you.

"They were wonderfully efficient and helpful. They came very quickly and assessed our situation and then gave us good advice. I would definitely recommend this company."

Tamar S on May 2025


Avatar for Guardian Basement Waterproofing

Guardian Basement Waterproofing

4.68(
19
)
Approved Pro

Guardian Basement Waterproofing

4.68(
19
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
68 local quotes requested

Guardian Basement Waterproofing understands your basement waterproofing needs. We know how to detect the source of water intrusion and stop leaks before they happen. We help our customers reclaim their basements from water, mold and mildew by doing what we do best: finding and repairing the source of their water-related problems. Guardian uses only skilled and experienced technicians to do the job right the first time! As a basement waterproofing company with more than 40 years of waterproofing experience, Guardian stands behind its work with a Lifetime Guarantee. Additional phone number - (410) 484-9812.

"Avoid Guardian Basement – False Promises and Poor Customer Service Two years ago, I hired Guardian Basement to fix a water issue on the front wall of my basement. Joel came out, sold me on their system, and guaranteed I would have a dry basement. We also replaced two sump pumps and had the sump well dug deeper. The main selling point was their lifetime guarantee. Fast forward two years, and I have the exact same problem. Every time there is significant rain, water rushes through the same wall. I reached out to Guardian Basement, and Joel scheduled a time to check it out. His tone was completely different this time—defensive and dismissive. Within five minutes, he claimed, “Your system is clogged.” He made this assessment without any real inspection—just by looking at the cement floor and wall. Now, here’s the catch: If you look closely at their so-called lifetime warranty, clogs are not covered. So despite spending thousands of dollars, I’m back to square one. To make matters worse, Joel was incredibly condescending and unpleasant to deal with. After this experience, I looked into their licensing with the state of Maryland and found multiple complaints against them. I am now in the process of submitting my own complaint as well. I would never recommend Guardian Basement to anyone. Save your money and go with a company that truly knows what they are doing and stands behind their work. If I could give them a negative number of stars I would."

Kelly M on March 2025

Guardian Basement Waterproofing understands your basement waterproofing needs. We know how to detect the source of water intrusion and stop leaks before they happen. We help our customers reclaim their basements from water, mold and mildew by doing what we do best: finding and repairing the source of their water-related problems. Guardian uses only skilled and experienced technicians to do the job right the first time! As a basement waterproofing company with more than 40 years of waterproofing experience, Guardian stands behind its work with a Lifetime Guarantee. Additional phone number - (410) 484-9812.

"Avoid Guardian Basement – False Promises and Poor Customer Service Two years ago, I hired Guardian Basement to fix a water issue on the front wall of my basement. Joel came out, sold me on their system, and guaranteed I would have a dry basement. We also replaced two sump pumps and had the sump well dug deeper. The main selling point was their lifetime guarantee. Fast forward two years, and I have the exact same problem. Every time there is significant rain, water rushes through the same wall. I reached out to Guardian Basement, and Joel scheduled a time to check it out. His tone was completely different this time—defensive and dismissive. Within five minutes, he claimed, “Your system is clogged.” He made this assessment without any real inspection—just by looking at the cement floor and wall. Now, here’s the catch: If you look closely at their so-called lifetime warranty, clogs are not covered. So despite spending thousands of dollars, I’m back to square one. To make matters worse, Joel was incredibly condescending and unpleasant to deal with. After this experience, I looked into their licensing with the state of Maryland and found multiple complaints against them. I am now in the process of submitting my own complaint as well. I would never recommend Guardian Basement to anyone. Save your money and go with a company that truly knows what they are doing and stands behind their work. If I could give them a negative number of stars I would."

Kelly M on March 2025


Avatar for Mid-Atlantic Mold and Restoration

Mid-Atlantic Mold and Restoration

5.00(
13
)
Approved Pro

Mid-Atlantic Mold and Restoration

5.00(
13
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
61 local quotes requested

MMR is nationally certified, fully insured and specializes in all aspects of mold remediation and restoration. Unlike most mold companies, MMR offers free inspections and appointments at specific times (no 4 hour appt windows!). Most projects can begin the next day or a time convenient to you. MMR does not use sub-contractors or undocumented workers at any time. All employees are highly trained and very polite. We will leave your home or business clean and sanitary.

"Overall, job paid for was complete. Hoped getting the wall put back together was an option, but removing the mold was important"

Johnathan L on September 2023

MMR is nationally certified, fully insured and specializes in all aspects of mold remediation and restoration. Unlike most mold companies, MMR offers free inspections and appointments at specific times (no 4 hour appt windows!). Most projects can begin the next day or a time convenient to you. MMR does not use sub-contractors or undocumented workers at any time. All employees are highly trained and very polite. We will leave your home or business clean and sanitary.

"Overall, job paid for was complete. Hoped getting the wall put back together was an option, but removing the mold was important"

Johnathan L on September 2023


Avatar for Green Home Solutions

Green Home Solutions

4.70(
22
)
Approved Pro

Green Home Solutions

4.70(
22
)
Approved Pro
Customers say: True professional
13 local quotes requested
5 years of experience

With our EPA-registered, plant-based products, Green Home Solutions is the trusted partner to address a range of indoor air quality needs: mold remediation, odor removal, allergen control, disinfection/sanitization, and air filtration. Our inspections detect indoor air quality issues, determine potential underlying causes, and help us create a customized and effective treatment plan that features our EPA-registered, plant-based products and IICRC protocols. We’re fast, affordable, and effective at eliminating mold, preventing regrowth, removing odors, and making air better. We uphold a standard of integrity with fairness, honesty, and personal responsibility. Accurate knowledge combined with a drive to serve our customers' interests and needs: these qualities make us true professionals you can rely on.

"Quick and painless."

Robert G on March 2025

With our EPA-registered, plant-based products, Green Home Solutions is the trusted partner to address a range of indoor air quality needs: mold remediation, odor removal, allergen control, disinfection/sanitization, and air filtration. Our inspections detect indoor air quality issues, determine potential underlying causes, and help us create a customized and effective treatment plan that features our EPA-registered, plant-based products and IICRC protocols. We’re fast, affordable, and effective at eliminating mold, preventing regrowth, removing odors, and making air better. We uphold a standard of integrity with fairness, honesty, and personal responsibility. Accurate knowledge combined with a drive to serve our customers' interests and needs: these qualities make us true professionals you can rely on.

"Quick and painless."

Robert G on March 2025


Avatar for Baltimore Home Specs, LLC

Baltimore Home Specs, LLC

5.00(
4
)
Approved Pro

Baltimore Home Specs, LLC

5.00(
4
)
Approved Pro
Customers say: Quick response
58 local quotes requested
Warranties offered

Home inspection company that covers the house from top to bottom. Covering from the roof to the basement and / or crawl space. Nothing is left un turned. Also, specialize in radon, mold, and lead testing. Former Level II Thermaligist (infrared scanning). I can do it all. I am also certified through the Baltimore city and county to conduct rental inspection.

"Chris was great. He explained everything that was checked and showed me all of the things I needed to know about the house. Would highly recommend him for anyone needing home inspection."

David M on March 2024

Home inspection company that covers the house from top to bottom. Covering from the roof to the basement and / or crawl space. Nothing is left un turned. Also, specialize in radon, mold, and lead testing. Former Level II Thermaligist (infrared scanning). I can do it all. I am also certified through the Baltimore city and county to conduct rental inspection.

"Chris was great. He explained everything that was checked and showed me all of the things I needed to know about the house. Would highly recommend him for anyone needing home inspection."

David M on March 2024

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Mold Testing and Remediation questions, answered by experts

Dehumidifiers do not directly remove mold or spores from the air. However, by lowering the room’s humidity, spores are less likely to flourish when landing on surfaces.

Bad odors and actual, visible mold aren’t the only ways to tell if your floorboards are suffering from too much moisture. Everything from high humidity to direct contact with water can cause wood to buckle, warp, peel, and discolor. Spotting one or more of these signs could be a clue that you’re dealing with mold. 

Musty smells often indicate the presence of mold, which can lead to various health risks. Inhalation of mold spores may trigger allergic reactions, causing sneezing, a runny or stuffy nose, and itchy or watery eyes. People who suffer from mold allergies or asthma may experience more severe respiratory problems. Certain types of mold, like black mold, can lead to mycotoxicosis, a condition associated with serious health effects like respiratory problems, fatigue, headaches, and skin irritation if exposure continues for an extended period. Those with weakened immune systems, respiratory problems, or allergies may be more vulnerable to the health risks that come with musty smells. Therefore, it is crucial to address and eliminate the source of the odor promptly.

White mold is generally considered less harmful than black mold. While both molds can cause health issues, black mold is often more toxic due to the mycotoxins it produces, posing a higher risk, especially to sensitive individuals. However, any mold infestation should be treated seriously, and prompt remediation is necessary to prevent further growth and potential health problems.

Yes, if installed correctly. Moisture barrier padding blocks dampness from reaching the padding core and subfloor, where mold loves to grow, especially in humid environments like basements. However, poor installation with gaps or loose seams can do the exact opposite, trapping moisture and creating mold problems. So, make sure to do your installation carefully or hire a professional.

The Marriottsville, MD homeowners’ guide to mold testing and remediation services

From average costs to expert advice, get all the answers you need to get your job done.