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Mold Science Environmental is a mold inspection, testing, and remediation company owned and run by Mark Carter, based in Bedford, NH. The business offers indoor air quality testing, mold assessment and testing, and mold remediation for residential and commercial properties, and lists a Licensed Mold Assessment and Licensed Mold Testing credential on its Angi/HomeAdvisor profile (self-reported, no license number given) alongside a stated 19 years of experience. Reviews from 2019 through 2023 across Google and Angi describe a business built around one person: Mark personally does the inspections, explains findings, and stays in touch through the job. Reviewers repeatedly describe him walking through what he found and why, step by step — in a 2020 review, one homeowner said "he explained everything that needed to happen and why," and in another 2020 review after a basement mold job, a customer wrote that the mold "is completely gone" and that he was "very honest and upfront." A 2022 Google reviewer who had been through multiple mold inspectors before said Carter's expertise "shows" and that he holds a real certification, not "a simple online certification class." Several reviewers across the years describe fast turnaround from quote to completed work, and multiple say they'd use him again for any future mold or water-damage issue. The record isn't uniform. In a November 2019 review, a customer said Carter tested the air and did spot testing, then quoted them for a major remediation project — but their insurance company rejected the results because, in the reviewer's account, he didn't follow standard mold-testing steps, and the review rated the visit 0.5 stars. That review sits alongside dozens of positive ones, but it's a specific, substantive complaint about testing methodology worth asking about directly, especially if results will need to satisfy an insurer. For mold inspection, testing, or remediation in the Bedford/southern NH area, the multi-year written record is heavily positive on communication, thoroughness, and follow-through; given the one documented methodology dispute, homeowners who need results to hold up with an insurer should confirm upfront what testing protocol will be used.
Good investigation based on scientific approach. Informative on many levels besides mold.
Mark is a very knowledgeable and professional mold inspector. He is properly certified and is not someone who took a simple online certification class, his experience shows. Having been through multiple “inspectors” I can attest this level of expertise and professionalism is hard to find. He provided a great inspection while also giving very personable advice as well as lots of information on what molds we were facing and dealing with and the best route for remediation. I would recommend him to anyone looking to test and treat their home PROFESSIONALLY and ACCURATELY. Thanks again Mark!
Mark with Mold Science Environmental performed a mold inspection in an area of our home where we experienced some water damage (luckily no mold was found). Mark was extremely informative and professional. I would definitely use Mold Science Environmental again in the future if necessary.
We used Mark and Mold Science Environmental for a mold inspection in our new home. He was thorough, knowledgeable and very responsive. We will be using Mark for any future water damage/mold removal needs.
I am so grateful to Mark for his knowledge, kindness and professionalism when it came to the mold remediation in our home. He took what was an overwhelming situation and made us feel confident in what was being done to ensure that my families health was not at risk. He took the time to answer questions, explain different aspects of the process and the actual science behind it. When the job was over you would not have even known anyone had been here other than the mold was gone. Everything was cleaned up provably better than it was originally! On top of this, Mark’s company comes with a lifetime guarantee that the mold will never return! I haven’t found any other company that is willing to offer this and that is because Mark doesn’t just remediate the mold…he knows the science behind it and how to ensure it doesn’t come back!
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1 change recorded — last scanned Sep 4, 2026.
