
Angi Approved
Super Service Award Winner
In business since 2024
Free estimates
"Excellent and professional work. Thorough and responsive "


Angi Approved
Super Service Award Winner
In business since 2024
Free estimates
"Excellent and professional work. Thorough and responsive "

Angi Approved
In business since 2001
Free estimates
Emergency services offered
"I saw NAL East Environmental, read their Profile & was extremely impressed. Their Inspectors’ are Highly Educated Professionals. Words can’t describe how Grateful I am for Mark Stern & Joe Chairmonte. Testing was explained with Professionalism, Knowledge & Compassion. Mark is a Genuine Professional. He was Respectful & Kind as he explained and knew what should be tested. Joe was already set up. They were extremely thorough. After testing, Mark said, “Please call with any questions,” He was true to his word. After finding Acute Mold issues in Our Rental Home of 17+!years. Mark showed much care for Our well-being. It’s RARE to find a Co. with such Caring Inspectors w/High Moral Values, Yet, here they are!! I hired Mark & Joe again for Surface Testing. I’ve since referred Mark & Joe to Family. NAL East is The BEST! Thank you & Many Blessings to Mark & Joe. You are Amazing Assets to NAL Eastern & Our Community!! Jacqueline W., Yardley, PA"

Angi Approved
In business since 2003
Free estimates
Emergency services offered
"Straight forward and efficient, great communication, costs transparent. When presented with challenges of temporary electricity outage was resourceful and creative to get the job done even more than predicted. Cleaned up after work done. Respectful and honest. Would highly recommend! I should have had them do this work years ago, glad I worked with Luis & Steve!"

Angi Approved
In business since 2008
Free estimates
Emergency services offered
"They did a prompt professional job. I received the report in about 7 days. Mold was found in the air due to high humidity in the air. All of this seemed OK but then I was forwarded to the Biocide company that tried to get me to buy a DIY mold remediation kit. There a time pressure to buy the kit for the best price at $2400. They said the nature of the mold would require a hazardous work fee from any remediation company that would cost from $12,000 - 18,000. This is when I started questioning the service I received. My pulmonologist also looked at the test results & said the mold levels did not seem too bad. Also, the humidity readings on my house thermostat did not read the high level that the report stated. So, I do not know if there was any value with the service & I am not sure if I would recommend them. The only way to really find out would be to call in another testing company but I did not want to spend another $660. So, I had the remediation work done for $1900 & was satisfied."

Angi Approved
Super Service Award Winner
In business since 2008
Free estimates
Emergency services offered
"Jeff explained everything in advance, answered all our questions and delivered on time and on budget. Would highly recommend Bio-Tech. "

Angi Approved
In business since 1995
Emergency services offered
Customers say: Super punctual
"I paid this company $600 to test the air in my detached garage. The results showed Cladosporium, which many professionals told me is extremely common. What happened next was one of the most uncomfortable experiences Ive ever had with a home-service company. They sent me a remediation proposal for over $45,000, and in my personal opinion the scope, tone, and sheer intensity of the warnings felt completely disproportionate to the situation. The estimate was filled with pages of dramatic health claims that, to me, came across as fear tactics rather than professional guidance. When I asked questions, the owner was extremely rude and dismissive on the phone. The whole thing felt pushy and uncomfortable. After leaving an honest review, things escalated in a way that shocked me. The owner contacted me and offered a refund only if I signed a notarized disclaimer that he drafted. I personally found that very unusual, and I chose not to sign anything. What concerned me even more was what happened next: after I declined to sign the document, a negative review suddenly appeared online about my wifes business at our home address claiming she had done work for him and stolen $600 from him. In my experience, this was completely untrue. My wife has never worked for him in any capacity. In my personal opinion, it felt retaliatory and deeply unprofessional. I ended up getting several second opinions from other mold professionals, all of whom felt the quote I received was excessive for what was found. Based on my experience with the customer service, the tone of the estimate, and the way things unfolded afterward, I would strongly recommend that other homeowners get multiple quotes before agreeing to anything. In my personal view, the way this situation was handled was alarming, unprofessional, and not in the best interest of the customer."


Angi Approved
In business since 2017
Free estimates
Emergency services offered
"They were very thorough. The only issue I have is that they both test and remediate. I think that is a conflict of interest."

Angi Approved
In business since 2014
Free estimates
Emergency services offered
"Absolutely outstanding service and work. Chris, the owner, answered my call within minutes and came to my house the next day to give me an estimate on needed mold remediation. He answered all of my questions, and when I asked, he referred me to an excellent certified tester who also came the next day. Speed was important to me because I have a mold allergy. Chris came up with a comprehensive plan to do the job right and still keep it allergy-safe. He and Rene taped down paper though the house so that the mold-covered tiles and drywall he removed did not get on my floor. They taped a heavy plastic tarp with zipper opening on the door to the room they worked and and wore protective boot covers that they changed each time they left the room they were working in. They left my house as clean as when they came. Rene and Chris were professional from beginning to end and showed attention to detail to avoid cross contamination and remove the mold effectively at a fair price. They addressed my issues effectively and were so pleasant to work with. It made it seem like they were family watching out for me. And now I am breathing better than I have for a long, long time. Thanks Chris and Rene for a job well done."
Angi Approved
In business since 2013
Free estimates
Customers say: Quick response
"Highly recommend. Affordable, reliable and honest."
From average costs to expert advice, get all the answers you need to get your job done.

Budget for mold remediation costs based on factors such as severity, location in the home, type of mold, damage type, and more.

Budget for mold inspection costs based on factors such as the size of your home, testing type, mold type, location, accessibility, and more.

Curious who installs radon mitigation systems? Learn who to hire, why specialists matter, and what radon mitigation costs so you can take safe action now.

Not sure who to call for mold removal? See when to hire a mold specialist or restoration pro, plus costs and steps to expect.

Curious who to call for a mold inspection? Discover mold inspection costs, pro options, and what to expect before you book.

Find who to call to test water for lead. Learn when to hire a certified water testing professional or state-certified laboratory and what to expect.