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6 Years In Business

Company Details

  • Verified Licenses


2225 Middleton Beach Rd
Middleton, WI 53562


  • Mon: 8:00 AM - 6:00 PM
  • Tue: 8:00 AM - 6:00 PM
  • Wed: 8:00 AM - 6:00 PM
  • Thu: 8:00 AM - 6:00 PM
  • Fri: 8:00 AM - 6:00 PM
  • Sat: 10:00 AM - 2:00 PM
  • Sun: 10:00 AM - 2:00 PM
View All Details & Credentials


Service Details

  • Residential Work
  • Commercial Work
  • Small Jobs Welcome

Areas of Expertise

  • Mold Testing and Abatement
  • Asbestos Testing and Abatement
  • Air, Water and Soil Testing
  • Lead-Based Paint Testing
  • Phase I ESA's
View All Offerings and Cities Served

Cost Information

  • Free Estimates
  • Credit Cards Accepted


18 Verified Reviews*
  • 5
  • 4
  • 3
  • 2
  • 1

Highly rated for

  • Quality
  • Value
  • Customer Service
*Reviews imported from Google have not been individually verified by HomeAdvisor.
Showing 1-10 of 18 results
5.0 Betsy O'donnell Google Review

Our experience was great and the asbestos expertise helped us understand more about our house. We’ll use them again for any future testing we need

Response from Company:

Thanks Betsy!

5.0 Shar B. Cedarburg, WI

Professional and thorough communication.

5.0 John C. Platteville, WI

Tucker showed up when he said he would, and he was very cordial. He took a sample and was gone quickly. We had a mix up with my email address, but after I called he sent the results again that evening. It wasn't like I was in any hurry to begin with. Very happy with the entire process.

5.0 Karla C. Madison, WI

Tucker was able to come to my home and get samples the day after I contacted him. The test came back in good time and he gave me option of what to do next.

5.0 Randall Maille Google Review

Keystone was very helpful with my building demolition needs for asbestos. Very professional.

5.0 Krista H. La Crosse, WI

I was so impressed with the quality of service provided by Keystone Environmental. Tucker responded to my request right away, answered all my questions clearly, and even drove long-distance to evaluate our home on short notice. He supplied a comprehensive written report just a few hours after the evaluation was complete. We are now able to proceed with our remodel project. I would highly recommend Keystone. Thank you!

5.0 Jennifer L. Waukesha, WI

I would highly recommend Tucker. He checked around the house for asbestos where we needed and beyond and results came quickly. Brought great relief for us to be able to do our home improvements. Great official reports for us to keep on file. Thanks for your work.

5.0 Lynda T. Milwaukee, WI

Tucker was very professional. He responded to our request in a very timely manner.

5.0 Leo H. Milton, WI

Tucker responded to our request for help quickly, he seemed thorough in the evaluation of our home for asbestos and other harmful agents, and provided very timely service in getting our samples back to us. He was terrific!

5.0 G R. Madison, WI

A pleasure to work with.


Keystone Environmental

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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)
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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.
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