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TRUSTED BY SANDY SPRING, MD HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon12
    Verified mold testing and remediation services reviews

Top-Rated Mold testing and remediation specialists in Sandy Spring - Updated Nov 2026

Avatar for MoldGone LLC
MoldGone LLC
4.8(
1,006
)
Toxicity and Mold - RemovalIndoor Air Quality TestingMold & Toxic Material Test+3 more

Serving Sandy Spring, MD and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"This was a great experience. I am very happy to have found Moldgone LLC. Everything was smooth from start to finish. The inspection was fast and simple, I received the quote quickly and the price could not be beat. They set the appointment and all communication in between were timely and informative. Jason & Curtis were my techs. They were friendly, fast, thorough, and did a wonderful job cleaning the model and repairing the area. I hope I never have mold again, but if I do, I will call them! Wonderful service and experience!"
Additional Photos
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+8

Response time1 day
9 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for The Best Air Quality and Restoration
The Best Air Quality and Restoration
4.8(
236
)
Toxicity and Mold - RemovalDry-rot, Water or Pest Damage - Major RepairIndoor Air Quality Testing+3 more

Serving Sandy Spring, MD and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Our cleaner Stephan was very professional, nice and informative. He even installed a special blue light with our system to prevent mold.... the same day. Would definitely recommend. The price went up because we opted to have mold cleaning and light installed. But very needed service. The price started around $240.00."
Additional Photos
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+50

Response time10 hrs
1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Mid-Atlantic Mold and Restoration
Mid-Atlantic Mold and Restoration
4.8(
19
)
Mold & Toxic Material Test

Serving Sandy Spring, MD and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"Excellent. Bruce is extremely honest and professional. I called Bruce after an exterminator warned me that he saw mold in my basement. Bruce came the next day, arrived exactly on time and upon visual inspection, told me that I did not have a mold issue. He could have easily set up treatment and I would have paid as I was afraid for the health of my family but Bruce is about as honest as they come. Jason"
Recommended by100%of homeowners
Avatar for Rudd's Indoor Environment
Rudd's Indoor Environment
4.7(
55
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Sandy Spring, MD and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Mr. Rudd of Rudd's Indoor Environment and the service he provides are EXCEPTIONAL!. Mold can be a scary subject but if it is something you need to look into Mr Rudd is the man to look to. We used him to do a mold inspection for a home purchase. Very satisfied. He knows what he is doing and was very thorough, professional and very informative. At the same time he is easy to talk to and easy to contact if there are any follow up questions or needs. He often answered the phone right away, but if not, he returned my calls or emails quickly. He also made himself readily available for phone calls from any other involved parties (in our case the real estate agents) who need further explanations."
Mold testing
Water stain
closet ceiling
Fruiting body of mold
Mold on HVAC vent

+6

Response time7 hrs
12 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for ZeroMold
ZeroMold
4.9(
61
)
Mold & Toxic Material TestMold & Toxic Material Test - For BusinessToxicity and Mold - Removal+1 more

Serving Sandy Spring, MD and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"We were given detailed descriptions of the proposed mold removal process, and all our questions were answered in a clear, coherent way. Photos (from a crawl space) showed us just how much mold had accumulated from the leaking pipe. The work was performed with safety of all concerned in mind. Above all, the two men who came into our home were pleasant, professional, and kind."
Before/After1
Before/After2
Before/After3
Vehicle1
Test Results

+4

Response time12 hrs
Response rate100%
Recommended by94%of homeowners
Avatar for Flood Solutions Inc
Flood Solutions Inc
4.8(
79
)
Toxicity and Mold - Removal

Serving Sandy Spring, MD and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"great customer service, shows up on time and they stand by their work. I was worried about a mold smell months after the work was done and they send someone out to look over the house no charge. turns out it was just my dehumidifier, but I would definitely hire them again!"
Response time1 day
Recommended by91%of homeowners
Avatar for Atlantic Environmental Solutions, LLC
Atlantic Environmental Solutions, LLC
4.9(
54
)
Toxicity and Mold - Removal - For Business

Serving Sandy Spring, MD and surrounding areas

Approved

In business since 2006

Free estimates

Credit card accepted

"I would HIGHLY recommend Atlantic Environmental and Keith Whitehead for mold remediation. They were nothing but professional from the first time I called until after the work was done. I can't recommend Keith's services enough. He came out and did a visual inspection of my property, informed me of the types of mold I was dealing with, recommended several remediation options according to my specific needs and worked with me to make sure I was completely comfortable with the whole process. He was there every step of the way. If you need mold remediation, call AE. You'll be glad you did!"
Attic Mold Treatment
Attic Mold Treatment
Attic Mold Treatment
Attic Mold Treatment
Attic Mold Treatment

+26

Response time11 hrs
Response rate93%
32 neighbors recently requested a quote
Watts Commercial Cleaning, LLC
4.6(
125
)
Toxicity and Mold - RemovalToxicity and Mold - Removal - For Business

Serving Sandy Spring, MD and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"Complete and expertly remediation of mold and water damage. Even the enviornmental inspection company score Watts Commercial Cleaning high with no missed steps in restoring my basement back to normal. Not a franchise, just highly knowledgeable workers."
Response time10 hrs
18 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Green Home Solutions
Green Home Solutions
4.7(
23
)
Mold & Toxic Material TestToxicity and Mold - RemovalIndoor Air Quality Testing+2 more

Serving Sandy Spring, MD and surrounding areas

Approved

In business since 2020

Warranties offered

Credit card accepted

"Hands down the best!!! While selling my property we discovered mold. I spoke to several remediation companies but Green Home Solutions stood out (way out!) with the most comprehensive processes! Brian was extremely helpful in explaining what I was facing, the step-by-step process it takes to remediate and future prevention options. I came up with 1001 questions daily; Brian answered each quickly, with the best attitude and genuine care. He moved things around on his busy schedule to fit my timeline. The level of service and professionalism I received were premier; and there are not enough words to express the confidence I have in this company and the phenomenal work they did. My post-remediation scores were much better than I expected. Once the results were out, Brian took the time to speak to my home buyers and made them feel equally comfortable. He offered them a warranty on his work and products which not all companies did. I would recommend Green Home Solutions and Brian to anyone who is facing a mold problem. They hold your hand, make the painful process easy, complete it fast and at a reasonable cost. I hope I never face mold again, but if I do, Green Homes Solution is my go-to. Thank you Brian!"
Mold Didn't Kill The Deal
Inspection: Why It Matters
Mold Didn't Kill The Deal
From attic spaces to crawl spaces, we are thorough
Mold Didn't Kill The Deal

+21

Response time2 hrs
6 neighbors recently requested a quote
Recommended by81%of homeowners
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Mold Testing and Remediation FAQs, answered by experts

Mold on windows forms due to excess moisture from condensation, poor ventilation, or leaks. Cold glass surfaces can attract condensation, especially in winter. High indoor humidity, lack of airflow, or dust accumulation are also contributors. To prevent mold growth, improve ventilation, regularly clean sills, and consider using a dehumidifier or sealing any leaks.

When you smell something, it’s because the particles of what you are smelling are floating through the air. If you smell mold, it means that it’s airborne, and whether or not it’s harmful depends on the type of mold. It’s very hard to tell the difference between molds, even with the internet to guide you. Call a professional as soon as you see mold, they will test it, remove it, and make sure you aren’t breathing anything harmful.

No, rubber mulch isn’t toxic and is considered safe to use around pets. However, pets, especially dogs, may try to chew on or eat rubber mulch, which can cause choking. Consider monitoring your pets and their behavior when around this mulch type to see how they respond to it.

Silverfish aren’t a direct sign of a mold problem. But since they like dark, damp locations, they’re a very strong sign that mold problems could exist. That’s why it’s important to look for signs of mold while you are taking care of a silverfish problem, and fix any causes of long-term moisture in your house.

In most cases, it is safe to return home after mold remediation is complete. You should follow your mold remediation technician’s recommendations, but most pros request that homeowners wait one day after the process is complete to move back in.

After returning home, be sure to carefully inspect the exposed areas for any remaining signs of mold spores. Contact the mold remediation company if you detect any lingering mold.

The Sandy Spring, 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.