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

Avatar for FailSafe, LLC
FailSafe, LLC
5.0(
19
)
Toxicity and Mold - Removal

Serving Farnham, VA and surrounding areas

In business since 2023

Free estimates

Emergency services offered

"I can't say enough about Joe and Frank. They know their business. The mold problem was remediated quickly and efficiently at a reasonable cost. I highly recommend Failsafe, they were neat, clean, and safe. The containment area was impressive with negative air pressure maintained to avoid spreading spores. This is a big job, with multiple aspects to repair the crack in the outside wall to prevent further issues. Failsafe accomplished its portion flawlessly. The mold and musty smell is gone."
Floor Covering
Containment
Containment
Protect your home valuables
Venting for negative air

+120

Response time1 hour
Response rate94%
Recommended by94%of homeowners
Avatar for Ecosystems Environmental Services, Inc.
Ecosystems Environmental Services, Inc.
4.2(
105
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business

Serving Farnham, VA and surrounding areas

In business since 1992

Emergency services offered

Small jobs welcome

"Since this work is technical and specialized, I cannot judge work quality and value for money, but the overall experience was very positive. They came on time, were pleasant and efficient, and inspired confidence in their ability to do a proper job. They were totally professional. They called to give me the results as soon as they were available, with an emailed written report a few days later. I chose this firm to test for asbestos in a ceiling because they do only testing, not the remediation work should the result be positive."
Certifications
Certifications
Certifications
Certifications
ACAC Board Member

+68

Response time5 hrs
Recommended by91%of homeowners
Avatar for CSI Home and Commercial Services
CSI Home and Commercial Services
4.6(
80
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business+2 more

Serving Farnham, VA and surrounding areas

In business since 1995

Free estimates

Credit card accepted

"CSI did a thorough inspection, provide analysis, detailed report of findings and provided pictures of the areas with issues as well as aerial views of the house, lot and surrounding area. We are definitely hiring them for the Final Home Inspection and analysis."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+5

Recommended by97%of homeowners
Avatar for Hipp Masonry Works Inc
Hipp Masonry Works Inc
4.5(
45
)
Dry-rot, Water or Pest Damage - Major Repair

Serving Farnham, VA and surrounding areas

In business since 2001

Free estimates

"I started by calling a couple of the foundation companies, but they tried to make me think my house was sinking to its ruin and wanted me to spend over $20,000 to make rock solid repairs! Fortunately I have common sense, and started calling brick masons instead. I found Hipp on Angie's List and called for an estimate. He came out, looked at the area where I had issues, and then walked around the house looking at other smaller problems. He suggested digging to the footer on the front corner, installing jacks, and trying to raise the foundation to its proper level. He also recommended re-pointing some of the other smaller areas and replacing my slooping front porch concrete. I opted for the foundation and all the brick work, leaving the porch for later. When they first attempted to lift the foundation, some cracks started to re-open around the windows on the inside, so I asked them to stop and just stabilize at that point. The replacement windows had been installed about 15 years ago and were aligned to the slope, and worked perfectly. They did an excellent job, and I am extremely pleased with the work!! Chuck even dabbed some paint on some bricks that had been damaged by a power washer, so that they would match the other bricks. He left me the paint so that I can later "dab" around bricks stained from the wash down of my aluminum siding. This is a small company (just three of them I think), and I had to call several times to get set up. And it took a while for them to get to my job. This is why the C for responsiveness. But once they started, they were prompt and professional, well worth the wait! I opted to wait on the porch work, but will hire them to do that soon. Note: I have found that the best contractors are the small, hands-on companies. They are all hard to reach, and take a while to schedule, but they tend to be fair, and do the best work!"
Recommended by100%of homeowners
Avatar for On The Nose Mold Detection, LLC
On The Nose Mold Detection, LLC
5.0(
5
)
Mold & Toxic Material Test

Serving Farnham, VA and surrounding areas

In business since 2005

On The Nose Mold Detection, LLC provides mold inspection services for residential and commercial facilities utilizing a certified Mold Dog named Shotzy and his handler-inspector Pam Ward. We are located in Northern Virginia and are available to perform inspections for anyone, at any location needing our services. Our mission is to help you make your environment safe and healthy. \n \nWhy is a mold inspection using a dog superior to a traditional inspection? Just as a bomb dog protects life, health and property, being the most efficient and accurate tool currently available for pinpointing the hidden location of a bomb, so too with a mold dog. On The Nose Mold Detection LLC provides all the normal mold inspection services with the added value of utilizing the science of scent discrimination to precisely pinpoint the location of hidden mold. \n \nQuestion: Why would you tear out the whole room to find mold located under the window sill on one wall? \n \nAnswer: Traditional inspection methods do not provide the detailed accuracy to tell you exactly where the mold is growing. A certified mold detection dog does! \n

Recommended by20%of homeowners
Avatar for The Fireplace Doctor
The Fireplace Doctor
3.9(
1,190
)
Dry-rot, Water or Pest Damage - Major Repair

Serving Farnham, VA and surrounding areas

In business since 1993

Emergency services offered

Credit card accepted

"They did a great job. They solved all the problems I had with the chimney and it’s been working perfectly ever since. They also fixed a problem on the roof around the chimney; they replaced the wood around the chimney with a material that would never rot, so they fixed it even better than it was before. It took them a couple of days to do the work. They took care of all the cleanup as well. We've been real happy with them."
Recommended by78%of homeowners
H & B Industrial
5.0(
2
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business+2 more

Serving Farnham, VA and surrounding areas

"Very well. Workers arrived promptly and worked steadily. They inspected for mold in my basement, removed duct cover where mold was found, built a new cover, applied mold preventive to the whole basement, and did an awesome clean-up, including vacuuming the whole basement. I was pleased that the job was done well and finished in a day. One worker returned two days later to sand the drywall, which had needed time to dry completely. I appreciate how they explained everything they were doing."
Recommended by100%of homeowners
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Mold Testing and Remediation FAQs, answered by experts

If the smell is closer to mildew or rotten eggs, the issue is probably mold or bacteria buildup in the machine or its drainage system. Clean your washing machine thoroughly, paying close attention to the rubber door gasket, as it can harbor odor-causing residue. Some machines have lint or debris filters that should also be checked and cleaned according to the user manual's instructions. Be sure to leave the machine's door or lid open after each use, as this allows for better air circulation and helps prevent mold growth.

Yes, a one-time water leak can cause mold. Depending on the conditions, mold can begin to grow within 12 to 48 hours. The risk increases with the severity of the leak, high humidity, and when water soaks into absorbent materials like drywall. To prevent mold growth, stop the leak immediately and ensure the area is dried completely; running a blower fan for 24 hours is recommended. If you do notice mold, it's best to call a mold removal specialist to address the situation.

Powdery mildew is exactly like it sounds—a widespread mold that looks like baking soda or talcum powder. It’s usually seen on plants and spread in warm climates, which is why many people first discover this issue in their home greenhouse. Over time, plants have become resistant, but if you see it spreading, baking soda and water can eliminate many cases. Otherwise, consider neem oil or fungicide. 

It is not advisable to stay in a house with black mold. Exposure to black mold, or any mold, can lead to health problems, especially for vulnerable individuals such as children, the elderly, or those with weakened immune systems. Black mold produces mycotoxins, which can cause respiratory issues, skin irritation, fatigue, and headaches. If black mold is detected, it is crucial to evacuate the premises, seek professional help for remediation, and only return once the area is thoroughly cleaned and confirmed mold-free by experts.

Vermiculite insulation that comes from a particular mine before 1990 is likely to contain asbestos. This is particularly true in the U.S. However, not all types of vermiculite insulation contain asbestos. Since you can't detect the presence of asbestos without special equipment, it's best to assume that the insulation contains the dangerous mineral and to either leave it alone or hire a professional to handle it.

The Farnham, VA 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.