4.73 |25 Verified Ratings
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4.73 | 25 Verified Ratings
Write a Review


PO Box 1754
Morgan Hill, CA 95037
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Richard Gray is your trusted mold professional. The quality of interior air can affect the health and comfort of your home. In coastal California indoor air quality problems can arise from moisture, insects, pets, appliances, materials used in household products, furnishings, building materials, smoke and other sources, all of which affect your indoor air quality and become a health concern. Our goal is to continue as early adapters in the extremely fast developing science of clean indoor air quality, mold removal, mold testing, pest control, and high heat structural pasteurization. We look forward to providing you with a clean and safe environment.


Learn how HomeAdvisor screens and approves their pros.

Service Area

  • San Jose
  • Salinas
  • Santa Cruz
  • Palo Alto
  • Santa Clara
  • Mountain View
  • Sunnyvale
  • Los Gatos
  • Monterey
  • Los Altos
  • Carmel
  • Scotts Valley
  • Campbell
  • Morgan Hill
  • Stanford
  • Milpitas
  • Saratoga
  • Aptos
  • Gilroy
  • Watsonville
  • Cupertino
  • Holy City
  • Redwood Estates
  • Aromas
  • Moss Landing
  • San Ardo
  • Greenfield
  • Pebble Beach
  • Marina
  • Capitola
  • Castroville
  • Alviso
  • Big Sur
  • Chualar
  • San Lucas
  • Davenport
  • Gonzales
  • Brookdale
  • Lockwood
  • San Martin
  • Seaside
  • Carmel by the Sea
  • Spreckels
  • Boulder Creek
  • Mount Hamilton
  • Soledad
  • Ben Lomond
  • Coyote
  • Pacific Grove
  • Carmel Valley
  • Mount Hermon
  • Felton
  • Freedom
  • New Almaden
  • King City
  • Jolon
  • Bradley
  • Soquel
  • See All >

Services Offered

Mold & Asbestos Services
  • Indoor Air Quality Testing Companies
  • Mold & Toxic Material Testing

Areas of Expertise

  • Air Quality Testing
  • Mold and Bacteria Testing
  • Water Damage Testing
  • Chemical Free Remediation Referrals
  • Structural Pasteurization

Product Brands Used

  • ThermaPure Heat

Quick Facts

Business Hours
(Please call to confirm)
  • Credit Cards Accepted


In Business Since: 1990
HomeAdvisor Screened. View Details

HomeAdvisor allows Service Professionals to post information about themselves and their business on their profile. HomeAdvisor does not review or verify the information or representations set forth in those profiles, as they are self-reported by the Service Professional.

HomeAdvisor verifies state-level licensing where applicable - note: some states require local or county level licensing and you should verify whether or not your pro is properly licensed.

Business Overview

How We Got Started

I chose to work in this industry because Indoor Environmental issues were becoming central to healthy structures.

We started in this industry in 1996.

We describe our business as Well established

HomeAdvisor: The nation's largest network of screened and rated pros.

Ratings & Reviews

Real feedback from real homeowners.
Learn more about this pro by reading the ratings and reviews below.
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Showing 1-10 of 25
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5.0   |  
Review by in Los Altos, CA
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5.0   |  
Review by in Sunnyvale, CA
Had a good experience with David from Certified-Environmental. He was on time, did the test according to industry standards and got the results back on time as promised. I only wish it was less expensive!
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4.0   |  
Review by in Los Altos, CA
I was expecting the agent to get under my house and check for mold where I had had a previous and severe water break last winter. His samples were taken only around the exterior and a couple of spots on the interior of my house.
Response by Certified-Environmental: We do not use agents, ALL of our inspectors are Board Certified Indoor Environmentalist. We rarely inspect crawl spaces, however access is needed and in this case there was no access. Several locations were identified with prior water damage but the homeowner agreed to have one location tested. We are sorry our client was unhappy with our service, but we did everything necessary to provide a complete inspection and indoor air quality report.
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4.5   |  
Review by in Sunnyvale, CA
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5.0   |  
Review by in Gilroy, CA
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5.0   |  
Review by
Project: Test for Toxic Materials & Mold
Richard Gray and his daughter Jayce, also a certified environmentalist, were punctual for our appointment and very thorough with sample testing and air quality testing. They were very patient in explaining their process and answered all my questions without hesitation. I would highly recommend them to anyone seeking air quality testing and mold abatement.
3.0   |  
Review by in Los Altos, CA
The testing procedure seemed very perfunctory.
Response by Certified-Environmental: There is always a person that is not happy, we are sorry. We do every inspection and test in order to certify the home healthy. Nothing perfunctory.

1 of 1 users found this review helpful.

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5.0   |  
Review by in San Jose, CA

0 of 1 users found this review helpful.

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5.0   |  
Review by in Dublin, CA

0 of 1 users found this review helpful.

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5.0   |  
Review by in Gilroy, CA
Great service!!

0 of 1 users found this review helpful.

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Showing 1-10 of 25
  Page 1 of 3

Seal of Approval

What is the screening process that Service Professionals go through in order to become members of the HomeAdvisor network?

  1. Verify Trade License
    HomeAdvisor checks to see if the business carries the appropriate state-level license.
  2. Verify Insurance
    As a part of our screening process, we encourage professionals to carry general liability insurance. We require coverage for hundreds of services.
  3. Verification of State Business Filings
    For business types that require a Secretary of State filing, we confirm that the business is in good standing in the state in which it is located.
  4. Criminal Records Search
    HomeAdvisor uses 3rd party data sources to conduct a criminal search for any relevant criminal activity associated with the owner/principal of the business.
  5. Sex Offender Search
    We confirm that the owner/principal is not listed on the official state Sex Offender web site in the state in which the owner/principal of the company is located.
  6. Bankruptcy Search
    We use 3rd party data sources to check the history of the principal/owner of the business for bankruptcy filings by or against them.
  7. Legal Search for Civil Judgments
    We use 3rd party data sources to check the principal/owner of the business for state level civil legal judgments entered against them.
  8. Liens Search
    We use 3rd party data sources to check the principal/owner of the business for liens placed against them.
  9. Identity Verification (SSN)
    HomeAdvisor verifies the social security number(s) of the owner/principal for identity check purposes. This check applies primarily to smaller business entities.
  10. Identity Verification (Reverse Phone Lookup)
    We conduct a reverse business phone lookup to identify records matching the phone number information provided by the business.

NOTE: Member service professional information confirmed as described above may change or expire over time; while HomeAdvisor attempts to maintain accurate and up-to-date information, and confirms changes when notified, we cannot guarantee that profile and screening information is accurate. Therefore, we recommend that before working with a service professional you verify that information presented is still current and/or acceptable to you.
Please see HomeAdvisor's Terms and Conditions for a full description of how we screen Service Professionals

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