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TRUSTED BY FRIENDLY, MD HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon66
    Verified biohazard remediation services reviews

Top-Rated Biohazard remediation specialists in Friendly - Updated Nov 2026

Avatar for The Best Air Quality and Restoration
The Best Air Quality and Restoration
4.8(
236
)
Toxicity and Mold - RemovalIndoor Air Quality TestingMold & Toxic Material Test+1 more

Serving Friendly, MD and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"After purchasing the coupon from Angie's list, I received a phone call soon afterwards from them. They were very professional and knowledgeable. I asked many questions and felt no pressure to buy any additional services. So I did have them treat for mold spores and also clean our dryer vent for an additional fee which seem reasonable. Definitely will hire again."
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+50

Response time10 hrs
1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for MoldGone LLC
MoldGone LLC
4.8(
1,006
)
Toxicity and Mold - RemovalIndoor Air Quality TestingMold & Toxic Material Test+1 more

Serving Friendly, MD and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"Jon Gordon of MoldGone arrived promptly and provided an outstanding service that included testing, providing diy remediation suggestions and educational information. I was very reassured and would not hesitate to recommend this company to anyone."
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+8

Response time1 day
9 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Radon Abatement Services
Radon Abatement Services
4.9(
257
)
Radon Gas - Abatement

Serving Friendly, MD and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"Highly professional team did a timely and superb job on the installation. At the end of the job they performed a complete cleanup, training on the system, and provided a radon test kit at no additional cost. I highly recommend them for radon abatement services."
Additional Photos
1 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Ace Environmental Holdings, LLC
Ace Environmental Holdings, LLC
4.9(
161
)
Hazardous Waste Removal

Serving Friendly, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Free estimates

Emergency services offered

"From the first touch to signing the check, removal of a 500 gallon leaking tank from a crawl-space, soil remediation, installing a new tank was fast efficient and smooth. I wish they also did taxes and provided doctor services!"
Company-Owned Equipment
Upper Marlboro, MD
Fuel transfer
Removed oil tank
New AST installation

+67

Response time11 hrs
165 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Compliance Construction & Remediation, Inc.
Compliance Construction & Remediation, Inc.
4.9(
136
)
Asbestos - Abatement

Serving Friendly, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Emergency services offered

"No one expects or wants to deal with asbestos removal but after removing old carpet in an old home we unexpectedly found tiles that tested positive for asbestos. Compliance Construction went above and beyond to handle this remediation even when it took much longer than they originally anticipated. James Lang in particular was incredibly responsive to our needs. I hope that I never need asbestos remediation again but if I do I will know who to call."
Response time12 hrs
Response rate94%
4 neighbors recently requested a quote
Avatar for D & H Demolition, LLC
D & H Demolition, LLC
5.0(
11
)
Asbestos - AbatementMold & Toxic Material TestToxic Lead - Testing+1 more

Serving Friendly, MD and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"I love my basement now! They removed all of the asbestos flooring, adhesive etc. and installed my new floor in 2 days. The employees were very respectful and worked efficiently. They had said 3 days but they hustled and did it in 2."
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+9

Response time8 hrs
Response rate100%
7 neighbors recently requested a quote
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 Friendly, MD and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Danny was great!!! We are doing a house refi and the appraiser noted a mold like substance in the basement bathroom. I contacted Danny and e answered his phone whenever I called, and was quick to come out to test our mold. In the beginning, he explained that he only tests, does not do remediation and why it isn't good to have a company that does both together. He made this process easy to digest and feel like I wasn't going to go down a road that was an expensive scam. He thoroughly explained the test process, and even told me that it might be just an allergen, which in fact it turned out to be. He sent me a thorough report, and then let me know that the mortgage company could call him directly if they needed any clarification or didn't understand the report."
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 Mid-Atlantic Mold and Restoration
Mid-Atlantic Mold and Restoration
4.8(
19
)
Mold & Toxic Material Test

Serving Friendly, MD and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"When this company came to inspect my home- where I thought there was a problem, I was immediately informed that I did not have a mold problem. He literally wiped what I thought was mold away with his hand, and told me use some Lysol to take care my bathroom cabinet. I am thankful for his honesty and the fact that I didn't have to spend any money for his services. If I ever develop mold in my home, my first choice would be mid-atlantic mold and restoration! The Gentleman that came out to inspect was very kind and knowledgeable!"
Recommended by100%of homeowners
Avatar for A & I Inc
A & I Inc
5.0(
40
)
Asbestos - Abatement

Serving Friendly, MD and surrounding areas

Approved

Super Service Award Winner

In business since 1989

Free estimates

Emergency services offered

"Jason and the team from A-l knew exactly how to proceed with removal of the asbestos flooring we encountered during our kitchen install. They demonstrated professionalism, knowledge and understanding addressing our concerns for safety and provided a detailed step by step process while taking the time to answer any questions we had along the way."
My jobs
My jobs
Response time9 hrs
Response rate100%
91 neighbors recently requested a quote
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Biohazard Remediation FAQs, answered by experts

Whether it's safe to stay in a house with water damage depends on the severity of the issue. If the damage is minor, such as from a small plumbing or window leak that is caught early and hasn't affected the electrical system or led to mold, it is likely safe to stay. However, for major water damage from flooding or standing water, it is not safe to remain in the home. The primary risks include mold growth, which can begin within one to two days and poses a serious health risk; structural damage that can weaken your home's integrity; and electrical hazards. It is strongly recommended to relocate until a trained professional has inspected the damage, dried the area, treated any mold, and confirmed the home is safe to return to. Your insurance company may be able to help with the cost of alternative housing while repairs are being made.

Window sill mold can be harmful, but the severity depends on the type. Common household molds like Cladosporium or Aspergillus can trigger allergies, respiratory issues, or worsen asthma symptoms. However, black mold (Stachybotrys) can produce mycotoxins that can harm your health. Even less toxic molds should be addressed promptly to prevent health risks and property damage.

Yes, mold behind drywall can affect your health, even if it is not visible. Mold releases spores and mycotoxins into the air that can be inhaled, leading to various health issues including respiratory problems, allergies, asthma symptoms, coughs, and other infections. While individuals with pre-existing conditions like allergies, asthma, or weakened immune systems are particularly vulnerable, anyone can be affected by prolonged exposure. Additionally, if left untreated, mold can spread throughout your home and compromise its structural integrity, resulting in costly repairs.

If you have the appropriate dehumidifier for the volume in your home then no, they shouldn’t be left on all day. Dehumidifiers have a motor that operates a compressor. In some ways, this is similar to a car and like a car, a dehumidifier needs periods of rest. Ideally, you would run a dehumidifier less than 45 minutes per hour with a break for 15 minutes. Still, this is the upper limit of what you should do.

Fumigation performed by licensed exterminators is safer and more effective than store-bought foggers. That’s because there are a lot of harmful substances and risky techniques used during such a service, and using or doing them without sufficient knowledge can put both you and your home in harm’s way. When in doubt, let a pro take care of tasks like this. 

The Friendly, MD homeowners’ guide to biohazard remediation services

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