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Avatar for Angstrom Testing Services LLC
Angstrom Testing Services LLC
4.9(
9
)

Serving Melville, NY and surrounding areas

Approved

Small jobs welcome

Credit card accepted

Offers commercial services

"Angstrom Testing used a moisture meter and found that one of the kitchen walls and an area of the kitchen ceiling in my mom's apartment were wet. Then they took an air sample in the kitchen and sent the sample to the lab to determine the level of mold in the air. After that, they made a cut into the wet area of the kitchen ceiling and found a dripping water pipe. The top side of the ceiling was black with mold. They also took a piece of sheetrock out of the top of the wet kitchen wall and found more mold on the back of the wall (yuck!!).
They called me two days later with the air test results, and they told me that the level of mold in the air was very high. They also told me that there was probably a connection between my mom's symptoms and high levels of mold in the air. Makes sense. They also told me that that my mom should stay upstairs with me and my husband until we get rid of the moldy ceiling and wall in her apartment.
A few days after they called, Angstrom emailed me a report with all of the details of what they did and found. In the report, they wrote recommendations and procedures that a mold removal contractor should follow to safely remove the mold and dry and treat the wood wall frames and wood ceiling. Since the level of mold in the air was so high, they said in their report that the kitchen air should be cleaned with an air cleaner and that the kitchen appliances, cabinets, and floor should be wiped down to get rid of all the mold spores that were laying around.
I really appreciated all the work they did and all of the advice that they gave me to help me and my mom. My mom is now living upstairs with me and my husband, and she says that she is already starting to feel better. Although my husband is not too happy (LOL). Great company! Thanks.
"
Ground water infiltration occurred through the concrete slab in two rooms on the ground floor of the house causing water damage and mold growth on the overlying flooring. The cause of the water infiltration appears to be associated with cracks and a crater in the concrete slab, which is believed to have been caused by pile driving work being performed during the construction of an adjacent building.
Mold in HVAC Coil Compartment
Construction/demolition work in an  apartment unavoidably released high levels of dust that migrated into adjacent apartments. Dust containment methods, such as negative air filtration and poly sheeting, should have been used to prevent dust migration into adjoining spaces. Settled dust samples were collected from a table & curtain rod in a nearby apt, which revealed the presence of substantially elevated levels of silica and asbestos in the dust. Asbestos and silica are known carcinogens.
Water sampling
Recommended by44%of homeowners
Oakhill Home Inspections
5.0(
1
)

Serving Melville, NY and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

I pride my company on reliability, great communication, integrity, and quality work. I am an expert in home inspections, mold testing and radon testing and remediation. I will do my absolute best to keep you as educated and informed on your particular inspection project. I look forward to earning your business! Book with me online or feel free to give me a call today! My focus is protecting your home investment.\n\nThank You,\nCharles Rauch\nOakhill Home Inspections

Response time5 hrs
Response rate86%
3 neighbors recently requested a quote
Avatar for POLO & ASSOCIATES HOME INSPECTIONS LLC
POLO & ASSOCIATES HOME INSPECTIONS LLC
4.1(
32
)

Serving Melville, NY and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"Dave spent an hour and a half on the outside alone.  He left no stone unturned unless the seller had furniture or boxes in the way.  He had been in the construction business for 30 years, and that was very apparent.  He found things I would have never thought of, and was honest when he found good things as well.  He spent the time to explain and remind me of even the simplest safety things you should do in a home, like hitting the test and reset buttons on outlets once a month.  Apparently they break after a while and don't work at all.  I would definitely recommend Dave!!
"
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+9

Recommended by64%of homeowners
Avatar for Anthi Environmental Corp.
Anthi Environmental Corp.
5.0(
9
)

Serving Melville, NY and surrounding areas

Emergency services offered

"Very Professional, thorough and cost effective. Peter fulfilled his promise of removing the areas that tested lead positive at a GREAT price, was very prompt , professional and all in a timely manner. Would definitely use again. Highly recommended... Honest business."
Lead removal under HPD violations
Mold testing and remediation
Mold remediation
Lead removal under HPD violations
Mold testing and remediation

+59

Response time2 hrs
Response rate100%
Recommended by100%of homeowners
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Radon Detection and Reduction questions, answered by experts

Mitigation can take several days depending on home setup, equipment accessibility, and achieving effective diffusion system sealed efficiency.

The cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.

You can vent radon out of your house sometimes by simply opening a window, but it won’t remove the source, and will likely rise above recommended levels quickly. A professional will be needed to assess your home, and determine the best strategy for radon removal. Active radon sump pumps and soil depressurization systems are often used to forcefully vent the radon from your home.

A homeowner can install a radon mitigation system on their own. But it’s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.

No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.

The Melville, NY homeowners’ guide to radon detection and reduction services

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