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Featured
Trefz annual Toys for Tots drive was a success!
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Great article about the PSU Great Valley Knowledge Commons
https://news.psu.edu/story/549898/2018/11/30/campus-life/great-valley-completes-19-million-renovation-open-knowledge
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Construction nears completion at PSU Great Valley Knowledge Commons
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Have a safe and happy Thanksgiving from all of us at Trefz Engineering!
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Trefz says goodbye to Kris Hawk after 16 years. We will miss you Kris!
Missing from the picture are John Trefz, James Trefz, and Mark Conway.
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Philadelphia has passed a bill to adopt the 2018 International Codes on June 6th with exception to the Plumbing Code.
The Philadelphia Plumbing Code still remains the adopted plumbing code. These codes become effective on 10/1/2018. https://phila.legistar.com/LegislationDetail.aspx?ID=3359753&GUID=CCD0165B-C68C-4194-9CBD-1BA77D3D7604&Options=Advanced&Search
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