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

Avatar for Mold Test Company PA
Mold Test Company PA
3.9(
128
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Codorus, PA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"I received my call earlier today, and discussed my concerns. I wanted to start the process toward remediation asap! Mr. Griffin was at my house 4 hrs later. He was professional, compassionate, and answered all my questions, since this was a new experience for me and of concern. By 3pm, my home was totally inspected and my airborne samples were collected and headed to the GA lab for testing and results. Within minutes, a email to track my lab results status was sent to my phone! I can't do anything until the results are determined,and Mr. Turner, Senior Mold Analyst gets the report! The ball is rolling! MsV"
Basement
Insulation
Insulation
Wall
Basement

+68

Response time12 hrs
270 neighbors recently requested a quote
Recommended by82%of homeowners
Wilbur Hull Nano Cleaning Solutions, LLC
4.9(
17
)
Mold & Toxic Material TestIndoor Air Quality TestingToxicity and Mold - Removal+2 more

Serving Codorus, PA and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"Very well. Will serviced the house. He suspected there could be mold in the ducts, because there wasn't any in the furnace itself. I had burning sensations in my eyes and throat and that usually is generated by mold. The burning continues, so I'm not sure there was a mold issue, but I'm glad I had the service done just in case there was. Will is very professional. Explained everything that he was going to do. He left the house in the same condition as when he arrived. Also, he was quick to say that if I had any problems in the future, he would be glad to come back."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+4

Response time12 hrs
24 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for Fox Environmental Services
Fox Environmental Services
4.3(
11
)
Mold & Toxic Material Test - For BusinessToxicity and Mold - Removal - For Business

Serving Codorus, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"Eric and his crew, Christopher and Joe, did a great job. Eric informed us of his three day plan to complete the job and it went exactly as he stated. They showed up on time and kept us informed throughout the process. The price was fair and exactly as quoted. In addition, they were courteous and professional. I highly recommend Fox Environmental Services."
Response time11 hrs
1 neighbors recently requested a quote
Recommended by30%of homeowners
All Mold and Basement Services, LLC
4.3(
54
)
Mold & Toxic Material TestMold & Toxic Material Test - For BusinessToxicity and Mold - Removal+1 more

Serving Codorus, PA and surrounding areas

In business since 2007

Free estimates

Warranties offered

"Upon submitting the request for quotes on mold remediation I was contacted by Dave within hours to 1 day. I had a consultation scheduled with Dave within the week. I can not attest to the testing services of All Mold & Basement Services as I had the testing done prior to submitting the quote requests. Dave was very professional and forward with his process. While their process is very similar to others on this site, they go the extra mile and use a dry ice blasting technique to remove and eradicate the mold from all services and even between the joists and flooring which other companies could not guarantee would be done. Because of this process they weren't the lowest quoted price but the end result was the wood looked BRAND NEW. Both my wife and I were astonished. There were some delays in getting started and finished however this was not due to the company but adverse weather. With close to 1,600 sqft needing work and in meeting the agreed upon deadlines some areas appeared to had been missed and were brought up with Dave. He personnaly came out with one member of his crew and the necessary treatment materials and immediately took care of the questionable spots. I can't speak highly enough of Dave and his folks and I would highly recommend this company if you have need of mold remediation work."
Response time4 hrs
Response rate91%
Recommended by89%of homeowners
Avatar for All Mold & Basement Services, LLC
All Mold & Basement Services, LLC
4.3(
40
)
Mold & Toxic Material TestMold & Toxic Material Test - For BusinessToxicity and Mold - Removal+1 more

Serving Codorus, PA and surrounding areas

In business since 2007

Free estimates

Warranties offered

"We had a good experience with this company performing mold removal and installation of a water proofing system in our basement. They took the extra time to really evaluate the mold and water issues we had in our basement and explained in detail all of our options and the process involved in the resolution. The crew was knowledgeable, and professional. They reviewed the scope of work with us to make sure we were pleased with the process and results. They showed us pictures of the progress, tested the system sump pump in front of us, and went over how everything was put together and how the system will function. They also provide a good comprehensive warranty on the system. We'd recommend this company to anyone out there with similar issues in their basement."
Install of cove plate, cross cut view
Response time4 hrs
Response rate92%
Recommended by93%of homeowners
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Mold Testing and Remediation FAQs, answered by experts

Mold in HVAC ducts is a relatively common issue that homeowners struggle with—especially in humid climates or homes with poor ventilation. Moisture from condensation, combined with dust and organic debris, creates the perfect environment for mold growth. Homes with high humidity, leaky ducts, or clogged drains are more prone to this issue. Regular inspections and proper HVAC maintenance significantly reduce the risk of mold developing in your ducts.

While home mold tests can provide a simple identification of mold presence, they lack accuracy and reliability. These kits may detect mold spores but can't pinpoint the source or identify the type. Professional testing, combined with an inspection, is more comprehensive and leads to actionable next steps. 

Mold loves moisture, so prolonged high humidity levels or standing water can trigger mold growth. Mold also needs a food source to grow on, such as wood, fabric or another material. However, it's moisture that's most important for mold growth, which is why you want to keep humidity levels low.

Mold grows quickly. It typically begins to grow on drywall about 24 hours after exposure to moisture or humidity. Drywall is a porous material, which makes it particularly hospitable to mold growth. 

While mold growth begins after just a day or so, it can take a few weeks before the evidence becomes visible. Mold spores will typically appear on the drywall surface within three weeks of growth starting.

Mushrooms do not harm your yard. In fact, they can actually help improve your lawn health by decomposing woody organic matter in your soil, and breaking it down into nutrients that feed your grass and plants.

The Codorus, PA homeowners’ guide to mold testing and remediation services

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