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  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon10
    Verified mold testing and remediation services reviews

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

Avatar for Mold Test Company North East
Mold Test Company North East
3.8(
91
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Elsmere, DE and surrounding areas

Approved

In business since 2008

Small jobs welcome

Credit card accepted

"They were quick and thorough and knowledgeable and tested air inside and out and then recommended mediation. They don’t do that so there’s no conflict of interest. They recommended a company but left it up to me."
Mold Testing
Mold Testing
Mold Testing
Mold Testing
Mold Testing

+69

Response time5 hrs
23 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for ACI-Tech Inc
ACI-Tech Inc
4.7(
49
)
Toxicity and Mold - RemovalMold & Toxic Material TestMold & Toxic Material Test - For Business+1 more

Serving Elsmere, DE and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"The company was extremely responsive and accommodated the tight timeline to schedule a visit with Jack. He was prompt and very professional. He explained the issues and recommended options to address the remediation. Jack was very helpful and provided the estimate within 24 hours."
Response time7 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for She Demos, LLC
She Demos, LLC
5.0(
30
)
Mold & Toxic Material Test - For BusinessToxicity and Mold - Removal - For Business

Serving Elsmere, DE and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Great Company very professional responded to any questions I had and were very cooperative. Derrick was amazing he did a wonderfuly job on the removal and disposal of the pipe affected by asbestos and clearing the area. Kenithia was very professional with the coordination of the project and responded to my concerns immediately. I am very please and happy with the work and will refer this company to anyone that have asbesto issues."
Water Restoration
Water Restoration
Water Restoration
Water Restoration
Demo for Asbestos

+7

Response time12 hrs
Response rate100%
10 neighbors recently requested a quote
Avatar for The Radon Bros LLC
The Radon Bros LLC
4.8(
14
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Elsmere, DE and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"I didn't know what I was in for when I needed a radon mitigation expert. I figured it would be expensive and take forever. The Radon Bros were the best thing that could have happened! Extremely professional, knowledgeable, very affordable, and quick to respond! A great experience, start to finish!!"
Copper vent stack
Fan cover
Typical exterior
Typical exterior
Crawl space seal

+15

Response time1 day
Response rate100%
171 neighbors recently requested a quote
Avatar for Mold Inspection Plus
Mold Inspection Plus
5.0(
16
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business+2 more

Serving Elsmere, DE and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"Everything went smoothly.   James responded to my call promptly.   He met with us at the mobile home to talk about what they would do to test for the mold and remediate if necessary.   All of our questions were answered.   They were very professional, friendly, and provided excellent communication through every step."
Additional Photos
Recommended by100%of homeowners
Avatar for Mid Atlantic
Mid Atlantic
4.9(
18
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business

Serving Elsmere, DE and surrounding areas

In business since 1985

Free estimates

Emergency services offered

"Chris was WONDERFUL! I just purchased a home and wanted to have a mold inspection done for peace of mind. Chris took time to explain the process and put my fears at ease with his vast knowledge. He reviewed the test results with me prior to closing which gave me the peace of mind I needed to confirm I was making a good purchase and great investment. I highly recommend Mid Atlantic Commercial Residential Real Estate Solutions. VERY PROFESSIONAL AND COURTEOUS!!"
Crawl Space
Crawl Space
Crawl Space
Crawl Space
Recommended by100%of homeowners
Avatar for ETS Environmental Testing Services  LLC
ETS Environmental Testing Services LLC
4.7(
12
)
Dry-rot, Water or Pest Damage - Major RepairIndoor Air Quality TestingMold & Toxic Material Test+3 more

Serving Elsmere, DE and surrounding areas

In business since 2014

Emergency services offered

Credit card accepted

"They were great to work with! They arrived promptly and were very professional and courteous from the start to finish. Great experience, and a pleasure to work with. They referred some professionals for the remediation and to fix the home from the flood damage. They walked me through the whole process and made sure I was happy the whole way through."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+5

Recommended by100%of homeowners
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Mold Testing and Remediation FAQs, answered by experts

Water damage always poses a primary risk of mold and mildew, but growth is not guaranteed. The chances of mold developing depend on several factors, including the severity of the damage and how quickly the area is cleaned and dried. To prevent mold, you must act quickly—ideally within the first 24 hours. Clean up all water and thoroughly dry the affected area. If the damage is extensive, you were unable to address it immediately, or you suspect mold has already started to grow, it is best to assume it is present and hire a professional mold inspector or removal expert to assess the situation.

Inhaling black mold spores, even from behind walls, can cause people to have a wide variety of potential health issues. Some people may only notice a few breathing problems, while others can become quite sick with symptoms related to severe allergies. Constant exposure to mold spores can lead to lung infections and other long-term health problems. If you believe you have black mold inside your walls, you will want to reach out to a pro for an inspection and for advice on how to take care of the problem before it causes severe illness.

If your home was built before 1989 and still has original vinyl, there’s a high probability of asbestos mixed into the old flooring, which can harm you and your family if it’s disturbed from removal. If you suspect that you have asbestos, you’ll want to call in an asbestos removal expert to evaluate the situation.

The signs of asbestos exposure are often subtle and may not appear for many years, or even decades, after initial contact. This long latency period is one of the primary dangers associated with asbestos.

When symptoms do manifest, they can include:

  • Shortness of breath

  • A persistent, dry cough

  • Chest pain or tightness

  • Fatigue

  • Wheezing

  • Weight loss

  • Difficulty swallowing

  • A dry, crackling sound from the lungs when breathing

These symptoms are non-specific and can be mistaken for other respiratory conditions, making diagnosis challenging. Prolonged exposure can lead to serious diseases as the asbestos fibers cause scarring and inflammation in the lungs. These conditions include asbestosis, lung cancer, and mesothelioma.

Due to the vague nature of early symptoms, regular medical check-ups are crucial for anyone with a known history of asbestos exposure, particularly in an occupational setting. If you suspect asbestos is present in your home, a professional inspection is recommended.

Mold thrives in wet or moist conditions, so a fridge water dispenser can be the perfect place for them to live. You may transfer mold to the dispenser's nozzle by touching it with the rim of an unwashed water bottle or your hands. 

If you see splotches that look like mold, you can clean them using vinegar. Distilled white vinegar is acidic enough to kill and remove most mold species.

The Elsmere, DE 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.