Fully Accredited, Independent, Third Party, Window Testing, Whole Building Air Leakage Testing, and Laboratory Testing

Whole Building Air Leakage Testing

QED LAB performs air barrier testing, also known as whole building air leakage testing or blower door testing, on a daily basis across the Pacific Northwest. We test commercial and residential buildings of all sizes.. We know that the timing of this test matters. We have the teams and the equipment to perform your test and deliver a compliant report when you need it. We support your project with efficient test prep, and, if extraneous air leakage is discovered, QED LAB diagnoses the leak and provides clear next steps.

Window Testing

At QED LAB, we provide expert window testing services in Oregon to ensure your windows meet the highest standards of energy efficiency, durability, and performance. Our team uses advanced testing methods to assess factors like air and water infiltration, structural integrity, and thermal efficiency, helping you optimize your windows for energy savings and comfort. We identify any potential issues to ensure your windows are not only compliant with local building codes but also perform effectively against the diverse weather conditions in Oregon. With QED LAB, you can trust that your windows are tested thoroughly for reliability and long-lasting performance.

Why Choose QED LAB?

Choosing our services means working with a nationally recognized and trusted company dedicated to delivering honest, reliable work. As an FGIA/AAMA accredited lab, we’re one of the few in the industry with expanded accreditations for ASTM and AAMA field tests, ensuring the highest standards of performance. Our commitment to quality and integrity has earned us a strong reputation, and we take pride in providing trustworthy solutions that meet your needs with precision and professionalism.

What Our Clients Say

Kerry May

01:50 10 May 25

QED Lab is the easiest to work with, great communication, professional and extremely knowledgeable when it comes to all things testing. I enjoy working with their entire team!

Response from the owner 07:10 10 May 25

Thank you so much for your kind words! We're thrilled to hear that you find our team professional, knowledgeable, and easy to work with. Great communication is something we truly value, and we look forward to continuing our partnership. Thanks again!

Amelia SouthTownGlass

16:32 19 Mar 25

The best!!! They do an excellent job and are beyond reliable. We have done hundreds of field tests with them, and also have used their lab services. Everyone who works for QED is great to deal with. We are lucky they are here in the Pacific Northwest!

Response from the owner 19:22 19 Mar 25

It’s always a pleasure working with you, and we’re proud to be your reliable partner. We're equally fortunate to be serving the Pacific Northwest, and we look forward to continuing our successful collaboration for many more projects to come!

Timothy Williams

20:23 26 Feb 25

Charlie, Mike and the entire QED team are simply top notch. Definitely my preferred contractor for all testing requiring a certified and accredited agency. The field crews are phenomenally efficient and always push the limits of production when onsite. I highly recommend this group and look forward to having them onsite in the future.

Response from the owner 22:10 26 Feb 25

We truly appreciate your trust in Charlie, Mike, and the entire QED team. It’s great to hear that our field crews exceed expectations and deliver top-notch air barrier testing services. We look forward to working with you again soon!

Jeffrey Dideon

20:18 26 Feb 25

I have worked with the QED team for numerous years and have never been disappointed with the quality of their work, whether it be fenestration testing or whole building air tests. They, by far, get more done than any other testing agency I have worked with. I have worked with just about every one of the field teams and they are all top notch.Their communication is outstanding, from the initial request for proposal to the final report. The office team consistently checks in and makes sure everything is on track, even providing me with a gentle reminder when I need it.I cannot recommend QED enough and look forward to continuing our work together.

Response from the owner 22:12 26 Feb 25

Thank you, Jeffrey, for your 5-star review! We truly appreciate your loyalty and kind words about our team’s efficiency, communication, and quality of work. It’s always a pleasure working with you, and we look forward to many more successful projects together!

Tony Lockwood

16:51 05 Oct 23

Efficient, fair, professional. A step above their competitors.

Response from the owner 19:43 04 Nov 24

Thank you for taking the time to leave a review. We are truly grateful for your kind words and are pleased to hear that our service exceeded your expectations. We value your business and look forward to serving you again in the future. If there is anything else we can do to further enhance your experience, please do not hesitate to reach out.

Dimitri Lehr

03:10 03 Jun 17

Response from the owner 19:45 04 Nov 24

Thank for the 5-star review. We're so glad to hear that you had a positive experience. Your feedback means a lot to us, and we look forward to serving you again in the future!

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Looking for more information about Building Envelope Testing?

At QED LAB, we offer a Lunch and Learn where we provide valuable insights into code requirements and building envelope testing. Our experts will explain how these tests are performed and meet compliance with building codes. Join us for lunch and learn more about building envelope testing today!