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Find Mold & toxic material testers in Columbia Station

GJN Services, LLC
New to Angi

Angi Approved

In business since 2018

Free estimates

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

8 neighbors recently requested a quote
Avatar for Bactronix of Ohio, Inc.
Bactronix of Ohio, Inc.
4.47(
18
)

Angi Approved

In business since 2013

Free estimates

Customers say: Quality work

"We read the other reviews and we decided to book based off of them, however our experience was very different. First I will say that the mold was removed and Dan appeared to do a good job with that. Our biggest complaint was communication. We had taken a day off of work to be there for it to be done and when I texted to confirm our appointment he canceled 5 minutes prior to his arrival time. We rescheduled and this continuously happened. Our times were pushed back, rescheduled, or canceled and each time we got ridiculous excuses. Any time we reach out whether it be phone call, text, or email, we would not get a response and often had to send several follow ups. He came out and retested for our 6 month follow up on May 9th and said the results would be sent the next day and of course we have not gotten anything. The communication has been terrible and nothing has been done in a timely manner. He left the air scrubbers at our house for over a week and we continuously have to ask him to send results or follow up. While the first original job seemed good, we are absolutely fed up with the lack of communication and would not recommend to anyone considering using this company. For as much money as we spent, we expected to be able to get in contact with him, but that does not happen."
50 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for The Spore Authority
The Spore Authority
4.88(
52
)

Angi Approved

In business since 2017

Free estimates

Customers say: Quick response

"Jon is very professional in his approach. He explained multiple options to remedy my situation, including some DIY options that could save me some money. I used his recommendations for both his remediation service along with some of my own DIY. Rates are very reasonable, work was completes in a timely fashion. Will definitely use them again if ever needed. I highly recommend them."
20 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Trust Worthy LLC
Trust Worthy LLC
4.20(
5
)

Angi Approved

In business since 2018

Free estimates

Warranties offered

"Mr. Trustworthy looked in my attic and claimed no moisture. Another worker from my A/C company told me there WAS moisture. Although I asked, he never told me what is the black spot on my ceiling. He attempted to cover it up, but I can still see it. He did NOT provide a work order nor bill of sale. My fault, I am 89yrs and should have paid better attention. He also caused some breakage."
Recommended by80%of homeowners
Avatar for Vargo Property Solutions
Vargo Property Solutions
5.00(
2
)

Angi Approved

In business since 2021

Free estimates

Warranties offered

"Had some existing dormant mold on my foundation wall behind some drywall that was getting replaced. They came in and cleaned and sealed the basement wall so there would be no further issues in a timely manner. So I could continue with my reno project."
Avatar for Dutch's Mold Inspections LLC
Dutch's Mold Inspections LLC
4.93(
141
)

Angi Approved

In business since 2000

Free estimates

Warranties offered

"Went very well and would definitely recommend this company. Thorough, explained every aspect of the job and how to prevent future problems. Project manager on site, all employees pleasant, worked as a team, contained the problem and were readily available for questions, concerns. Work was done on schedule and communication was excellent. I can’t say enough about how great they were. It was a big job and they did what they said they’d do and did it very well. No mess to clean up"
Recommended by97%of homeowners
Avatar for Veterans Environmental LLC
Veterans Environmental LLC
5.00(
6
)

Angi Approved

In business since 2019

Free estimates

Emergency services offered

"Mike was great. Quick, friendly, efficient and affordable. I’ll definitely do business with him in the future should the need arise."
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for 1-800 WATER DAMAGE of CLEVELAND WEST
1-800 WATER DAMAGE of CLEVELAND WEST
5.00(
10
)

Angi Approved

In business since 2023

Emergency services offered

Customers say: Quick response

"Had to have my home checked for mold and reached out this company. They were super professional, clean and tidy. I would recommend them for anyone needing this service."
1 neighbors recently requested a quote
Recommended by40%of homeowners
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FAQs for mold & toxic material test projects in Columbia Station, 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 Columbia Station, 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.