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    Dellavalle Laboratory

    5.0 (1 review)
    Open 7:30 am - 4:00 pm

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    4 years ago

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    Insight Environmental

    Insight Environmental

    3.9
    (22 reviews)

    I can't recommend Steve highly enough. I found him after seeing his name come up repeatedly in a…read moreReddit discussion about mold, asbestos, and lead testing, and he absolutely lived up to the praise. Before we even scheduled the inspection, he spent over an hour on the phone answering all of my questions and explaining the testing process in a way that was incredibly thorough and easy to understand. He didn't just collect samples - he took the time to educate us on how to safely manage asbestos and lead during our renovation and what to keep in mind long after we move in. I also felt like he went above and beyond to be careful not to oversample - which I really appreciated as we navigate a budget for all these home repairs. He focused on highest-value spots (with the lowest visibility, visually!) As first-time homeowners navigating construction (and expecting our first baby), we found having someone so knowledgeable, patient, and generous with his time invaluable. It's rare to find someone with this level of expertise who genuinely cares about helping their clients make informed decisions. If we ever need environmental testing again, Steve will be my first call.

    Insight contacted me right away, within 24 hours of my request to them for testing. The…read morerepresentatives Rob and Brian are phenomenal. They treated me like family. I was able to secure an appointment for testing the next day. They explained step by step, the process of testing and lab work. every thing was exactly as they told me. Within a 24 period, I had the samples taken, sent to the lab, and final analysis of the test results. This is what I call "efficiency". thank you Brian and Rob. Alice, Fresno County

    Environmental Mold Sampling

    Environmental Mold Sampling

    3.7
    (3 reviews)

    I've been in Real Estate and Property Management for over 30 years. I can confidently state that…read moreDon at Environmental Mold Sampling is a true expert and professional. We live out of town and were in-contract to purchase a property in SLO. During our tour of the property, we noticed some moisture in the wall behind the fridge and and a couple of other areas with mold. We asked the property inspector if he had any recommendations for a mold company. We asked Steve at Pacific Coast Home Inspection because he was so thorough with the property inspection on. He referred us to Don. I was initially skeptical of this whole mold-sampling business. It felt too simple and too expensive. However, I have since been educated and have a new appreciation for this industry. Don found 2-3 areas that were creating spores. The sellers were conscientious and remedied the sources; however, their plumber tracked spores back into the house. Don had warned that this might happen, but his recommendations weren't followed. Only due to Don's expertise were we able to discover invisible areas where spores were tracked in and ask the sellers to clean them up before we took possession. Without Don's expertise, we would have never known that mold spores were still present. Our daughter is very allergic to mold, so we are so grateful that we found Don and Environmental Mold Sampling. I highly recommend this company.

    Don did a fantastic job testing my home for mold. This was a while back, but I'm surprised to see a…read morenegative review, and wanted to share my experience. I had a contractor attempt to treat water damage for mold, but he made the situation far worse. I called Don to provide definitive testing, and he was very professional and thorough, and confirmed that the "contractor" had NOT eradicated mold at all. Don's testing found some pretty bad types of mold. He does not do the remediation, so his findings are not biased. Don tested my house after a competent contractor did the sanitation, and the tests came back clean (no toxic mold, levels as expected). I highly recommend this service!

    Dellavalle Laboratory - environmentaltesting - Updated August 2026

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