Call Us
Toronto and Area's Asbestos, Indoor Air Quality and Mold Inspection Professionals


About Environmental Services Group Inc.

Founded in 2007 by Tara Valley, Environmental Services Group Inc. (ESG) has grown from a one-woman operation into a premier environmental consulting firm based in Toronto. With a keen eye and expertise initially nurtured in home inspection, Tara Valley has steered ESG from its early focus on residential mold and moisture inspections to a broad array of specialized services in indoor air quality and industrial hygiene.

Today, ESG boasts a team of top-tier environmental consultants serving Toronto and the Greater Toronto Area, committed to excellence in every project. Our growth has been fueled by strong partnerships within the industry, enabling us to extend our service offerings across all property types—residential, commercial, and industrial. At ESG, safeguarding health and safety through professional environmental assessments and hazard remediation, including mold, lead, and asbestos, remains our utmost priority.

Environmental Services Group is a consulting company that can provide:

  • Mold, Flood and Water Damage Assessments
  • Asbestos Surveys and Assessments
  • Asbestos Removal Services
  • Mold Removal Services
  • Post Remediation Verification (PRV) sampling (Mold)
  • Sewage Remediation Verification sampling including bacterial contaminants, E.coli and Legionella
  • Thermal Imaging and Moisture Mapping of Multi-Level Floods, Flat Roofs and Insulation errors
  • Writing Scopes of Work, Recommendations, and Maintenance Plans
  • Environmental Site Assessments and Underground Fuel Oil Tank Removal Services
  • Site Supervising and Project Management
  • Lead Surveys and Assessments
  • Indoor Air Quality Assessments (Regular Intervals and Emergency Services)
  • HVAC Inspections
  • Coil Cleaning and HVAC Cleaning
  • Indoor Air Quality Investigations including Carbon Monoxide, Chemical Off-gasing, Second Hand Smoke, Silica, Dust analysis, Mold Sampling
  • Radon Testing and Inspections
  • Trauma Scene Cleanup Assessment and Clearance
  • Fire and Smoke Damage Assessment and Clearance

Whether you require a residential mold inspection or a commercial asbestos survey we can provide a quality service for your needs. We regularly work with professionals that can perform asbestos abatement removalmold remediationlead based paint removal, stored oil tank removal, site assessments, and HVAC cleaning and coil cleaning.

Our services focus on indoor environmental hazards and the prevention, maintenance, or removal of any indoor contaminants that may be affecting the living areas of your property. Our company wide focus is on customer satisfaction making no project too large or too small.

Environmental Services Group has a large service area that includes all of the Greater Toronto Area, Mississauga, Hamilton and surrounding areas such as Barrie, Guelph and Oshawa.

Meet the ESG team

Tara Valley, President and Lead Environmental Consultant

Tara Valley, the driving force behind Environmental Services Group, ventured into the environmental science realm as a Home Inspector including a mold inspection service known as before founding ESG in 2007. Recognizing the critical need for specialized air quality services, Tara channeled her passion into building a company that stands at the forefront of indoor air quality management.

Under her leadership, ESG has not only mastered comprehensive air quality assessments but also extended its expertise to include hazardous material and hygiene assessments. Tara is dedicated to continuously advancing ESG’s reach into new sectors, leveraging her extensive experience from conducting thousands of property inspections and assessments to ensure that community health and safety are at the core of every project.

    • Education:
      • Bachelor of Science in Biology (Hons), Completed 3 of 4 Years
    • Certifications:
      • Level 1 Thermographer
      • Council-Certified Microbial Investigator (
      • Water Restoration Technician (
      • Applied Structural Drying Certification (
      • Advanced Microbial Remediation Technician (
      • Health and Safety Technician (
      • Commercial Drying Specialist (
      • Certified Home Inspector (
      • Certified Mold Inspector
      • Mold, Allergens, Sampling and Report Interpretation (
      • Termite Control License
      • Structural Pest Control License
      • Certified Indoor Air Quality Technician (
      • Certified Environmental Specialist
      • Radon Inspection and Testing
      • Odour Control Technician (
    • Memberships and Associations:
      • Indoor Air Quality Association (
      • American Indoor Air Quality Council (
      • Environmental Abatement Council of Canada.

Lawrence Kurtz, Registered Occupational Hygienist

With a rich history spanning over 15 years as a part-time associate, Lawrence Kurtz has officially joined Environmental Services Group as our dedicated Occupational Hygienist and Health and Safety Specialist. Bringing over 25 years of experience within Ontario’s health and safety prevention system, Lawrence’s expertise encompasses a wide range of critical areas. From exposure assessment to intricate disease investigations involving legionellosis and occupational cancers, his skill set is extensive. Lawrence’s background includes pivotal roles at IHSA and PSHSA, and 16 impactful years as an Occupational Hygienist at WSIB. His capabilities extend to worker training, accident prevention, and evaluating processes, with a special focus on hand-transmitted vibration exposure. Lawrence’s comprehensive knowledge enhances ESG’s capacity to serve diverse industries with unique services, pushing the boundaries of industrial hygiene in Canada.


  • Master of Science in Management – Boston University
  • Diploma in Occupational Health and Safety – McMaster University
  • Registered Occupational Hygienist – Canadian Registration Board of Occupational Hygienists
  • Personal protective equipment
  • Asbestos, silica and lead
  • Dermatitis and asthma
  • Supervisor training and due diligence
  • Custom training available
  • Health and safety audits and program development

Adam Trimm, Environmental Consultant

Adam has been a cornerstone of Environmental Services Group for over five years, serving as a senior consultant. Under the expert guidance of Tara Valley, he has developed a profound expertise in indoor air quality and environmental science. Adam’s extensive fieldwork includes conducting detailed inspections and assessments for hazardous materials, alongside comprehensive air quality audits.


  • ACAC-Council Certified Indoor Environmentalist (ongoing)
  • US EPA: AHERA Building Inspector
  • Water Restoration Technician (IICRC)
  • Advanced Microbial Remediation Technician (IICRC)
  • Fire and Smoke Restoration Technician (IICRC)
  • Odour Control Technician (IICRC)
  • Mold, Allergens, Sampling and Report Interpretation

Adam’s diverse certifications underscore his comprehensive approach to ensuring safe and healthy environments.

Mackayla Valley, Junior Environmental Consultant

Joining Environmental Services Group in early 2023, Mackayla Valley has quickly become an indispensable part of our team. With a strong work ethic and a keen eye for detail, she plays a pivotal role in our continued success. Under the mentorship of Tara and Adam, Mackayla has mastered essential techniques and principles in hazardous material inspection and air quality assessment. Currently pursuing a Bachelor of Science at Guelph University, Mackayla is dedicated to applying her academic insights to real-world environmental challenges.