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Find Mold & toxic material testers in Dover

GJN Services, LLC
New to Angi

Serving Dover, OH and surrounding areas

Angi Approved

In business since 2018

Free estimates

Credit card accepted

GJN Services, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customer's interests, and make their concerns the basis of our business.\n

Response time1 day
Response rate99%
8 neighbors recently requested a quote
Avatar for Rogers Basement Waterproofing
Rogers Basement Waterproofing
5.0(
512
)

Serving Dover, OH and surrounding areas

In business since 1975

Free estimates

Credit card accepted

"From start to finish, my experience with Rogers Basement Waterproofing was the the kind of experience we all hope for when hiring a professional. I contacted Rogers initially to get an idea of how to start addressing external moisture issues around my home’s foundation. My plan was to start by having new downspout/sump drainage lines installed, but my goal was to find a trusted company I could have confidence in for addressing future foundation/basement issues that are inevitable in aging homes. Shortly after my initial call, Nick contacted me. At our appointment he arrived promptly and took the time to listen to all my concerns. He was so knowledgeable, patient, and easy to communicate with. He answered my millions of questions, and I never felt rushed or pressured. In fact, I felt so impressed with that consult that I signed a contract on the spot—something I never do—for installation of drainage lines. The day before the scheduled work, Nicole—the Office Manager—contacted me to confirm and answer any questions I might have. I did have a request concerning one of the lines, and she relayed that request as soon as our call ended. Within minutes, I was contacted by Nick that my request was noted. Nicole was so incredibly nice that it further confirmed that I’d chosen the right company. On the scheduled day, the 4 man crew arrived on the dot. Shortly afterward, Nick stopped by to see how the work was going and to see if I had any questions/concerns. The crew, Zach, Craig, Hunter, and Josh were the hardest workers ever and couldn’t have been more friendly and pleasant. All four, and Nick, went out of their way to put my mind at ease about the process. The crew are more than skilled workers, they are craftsmen. They did meticulous work and went above and beyond. While routing a line to avoid tearing up a garden bed, a huge rock had to be hacked out of the ground. It’s now a cool garden feature since one of the crew kindly offered to wash it off and haul it over to one of the garden beds! The terrific crew were so efficient that the work was completed in under four hours. You literally cannot see where the trench was dug. Last night, we had a gulley washer rainfall. My neighbors probably thought I had lost my mind standing in the street in the rain in the dark with a flashlight—but it was so great watching the rainwater pouring out of the new drainage pipe ? The entire experience with the folks at Rogers felt like I was working with family. Just amazing. I’m so happy to have found a trusted company to turn to if future foundation/ basement issues arise. Highly, highly recommend Rogers Basement Waterproofing!"
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+2

Recommended by99%of homeowners
Avatar for Mold Men of Pittsburgh
Mold Men of Pittsburgh
4.8(
83
)

Serving Dover, OH and surrounding areas

In business since 1987

Free estimates

Emergency services offered

"This was absolutely excellent! From the initial estimate to the final project completion, everyone was professional and hard-working! I certainly recommend them. We even got an Angie's List discount as this is where we found them. Thank you Mold Men!"
Mold Men of Pittsburgh
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+15

Recommended by95%of homeowners
Avatar for Perfect Power Wash
Perfect Power Wash
4.3(
329
)

Serving Dover, OH and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Service was fine. My house was washed. A year and a half later charged $200 because I didn't do more business with them. Had a tech out too as they continuously called me to schedule service making me believe had purchased an annual power wash. Guy came out said it was just a sales call so I sent him away. If I'd been informed while he was here that it I didn't act before a certain date I would be charged I would've been able to make a more educated decision."
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+8

Recommended by80%of homeowners
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FAQs for mold & toxic material test projects in Dover, OH

Some companies offer a no‑cost phone or video consultation that screens for red flags. If the discussion points to a real issue, the pro will recommend a paid on‑site inspection. The complimentary call clarifies whether you need full testing, but it isn’t a substitute for samples, lab work, or a written report. Always confirm what the free service covers before you schedule.

A standard inspection, which includes basic air and surface samples, takes an average of two hours. If the pro needs to probe hidden spaces, such as wall cavities or ductwork, plan on up to six hours. Extra time allows the inspector to reach tight areas, collect additional samples, and document findings. Lab analysis is a separate process and often adds several business days to the overall timeframe before you receive the full report.

Mold thrives where moisture lingers and air flow is poor. Common hotspots include bathroom walls, kitchen backsplashes, window sills, HVAC vents, fireplaces, crawl spaces, and enclosed attics. Check these areas regularly—especially after leaks or high‑humidity weather—to catch growth early and avoid costly repairs.

Unchecked mold can knock 20% to 37% off a home’s market value because buyers worry about hidden damage and health risks. Even after remediation, visible staining or a history of major moisture issues can still lower offers and prolong the time on the market. Addressing mold quickly protects both your property’s structural integrity and its resale appeal.

The Dover, OH homeowners’ guide to mold & toxic material tests

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