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About Us

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Our Quest

Since 1991

Enviroquest seeks to change the way people perceive and use buildings to add safety, utility, longevity, and peace of mind. Integrity is our core value, and we strive for transparent honesty and complete harmony in what we promise and deliver.

When we send our people out to serve you, we expect to always give a little bit more than promised. We bring our best work every day, and we go home proud. We run on systems that have been tailored over 30+ years for peak performance, and we will never stop improving.

We hire the best people for our teams and train to their strengths. Are you a motivated, honest, hard worker interested in joining our team? Contact us at the phone number above or through our contact form. We may have a team that’s a perfect fit for you.

Enviroquest Radon Teams

For every radon mitigation system we install, we aim to maximize safety and reduce radon levels in an effective, efficient, and aesthetically pleasing manner in any building. Learn more about Enviroquest radon testing and mitigation services.

Certified Radon Technicians

PA DEP #1512 &1725

Our technicians are trained by PA DEP Certified Radon Mitigator John Staz.

Our History

Enviroquest was started in 1991 by John Staz. John majored in finance in college but his first job was at an environmental consulting company in Maryland. He later worked for a couple of different environmental companies where he got experience in Phase 1 audits, underground tank cleanup, and asbestos air monitoring.

John then got a job with a local company that did radon mitigation and home inspections. John was promoted to the manager of that company. The company was sold so John started Enviroquest.

Since then, John is actively involved in the business and still does home inspections. He has conducted over 15k home inspections and designed, and installed over 50k radon mitigation systems. Enviroquest is the most experienced home inspection and radon mitigation company in the Harrisburg area. John oversees training, mentoring and quality control.

Current Certifications: ACI (ASHI Certified Inspector), Certified Mold Inspector/Tester, Certified Passive House Consultant (CPHC), Certified Passive House Builder, DEP Certified Radon Mitigatior & Radon Tester, Pest Applicator.

Past Certifications and areas of study: PA Real Estate License, Advanced Framing Techniques; ICF training, Building Thermography, Hygrothermal Building Analysis, Thermal Bridge Calculation, Asbestos Contractor, Asbestos Microscopy (NIOSH 582), BPI, HERS courses

In addition, John manages commercial and residential real estate properties. John has completed over 45 construction renovation and high energy retrofit projects.


Our Team


John Staz III


ASHI Certified Inspector #203379, InterNACHI CMI # 20021027

John Staz has been a full time home/building inspector for over 27 years and completed over 15,000 inspections. He oversees the training, mentoring and quality control for Enviroquest. In addition, he also manages residential and commercial investment properties. John has completed over 40 construction, renovation, and high energy retrofit projects.


Brent Durborow


ASHI Associate #263401, InterNACHI CPI #17060315

Brent served in the US Army working on as a helicopter mechanic and airframe structural repairer. The skills he developed during his service to our country and later operating a home repair maintenance business made it an easy transition for him to become a home inspector. Brent is very thorough, yet personable. Meet him at the inspection and let him show you the ins and outs of your new home!





Amanda and Tracey

Amanda & Tracey

The People We Work With

What They’re Saying

Brent was punctual, super thorough, answered all of our many questions patiently, and saved us thousands of dollars by identifying some major issues during our home inspection.

Alison SemonCustomer

I called with a question and they got back to me later same day. Solid work and reasonable price. Would recommend.

Jared YoungCustomer

John Staz is the person to call to get the job done. He is great to work with and is an expert in all that he does. Thank you John!!!

Corinne MyersCustomer

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