A Leader in Environmental Remediation in Southern California
Full Service Environmental Remediation & Cleanup


State of California
California Contractors State License #981917


  • B – General Contractor
  • ASB Asbestos Abatement
  • HIC

DOSH: #1101

Department of Toxic Substance Control Haz Waste Transporter Certification

Medical Waste Practitioner License


  • $2,000,000 General Liability Limit
  • $2,000,000 Automobile Liability Limit

Statutory Limits for Workers Compensation

Our Testimonials

  • “Mark Hollister is amazing, perhaps the best contractor I have worked with in some time.”


  • “Timeliness and polite and efficient service.”

    Gwendolyn W.

  • “Thank you!”


  • “Great communication and cleanliness.”

    Tiffany S.

  • “Neat, clean, quick.”

    Roxana D.

  • “He was very personable and took the time to explain the job.”

    Dave S.

  • “They were very timely, always in contact and very courteous always.”

    Linda N.

  • “Moved things without damaging.”
  • “Everyone communicated well. I felt very well informed.”

    Leona C.

  • “Friendly answer and communication.”

    Naomi S.

  • “Great timeliness, communication.”

    Edmund M.

  • “Cleaned up spotlessly and finished earlier than they thought!”

    Mary S.

  • “Great at timeliness and communication.”

    Leann K.

  • “I was also pleased with how helpful they were when I had questions.”

    Patricia G.

  • “They were impeccably clean and careful. They all made this stressful time so much easier.”

    Susan C.

Depend On Us

We Exceed Expectations Every Time
  • Safe Removal & Transport of Environmental Contaminants

  • Delivering Fast
    Solutions & Hands on Customer Service

  • EPA Lead Safe
    & IICRC Certified For Your Safety

  • Latest Equipment for Effective, Clean Remediation