John Tiedemann Inc.

John Tiedemann Inc. EST. 1954 Specialists in Conservation and Restoration of Historic buildings.

A closer look at our recent restoration work at the historic Landmark Theatre in Syracuse, NY.This album showcases the c...
06/03/2026

A closer look at our recent restoration work at the historic Landmark Theatre in Syracuse, NY.

This album showcases the craftsmanship, detail, and care behind John Tiedemann Inc.’s work throughout this remarkable interior. From plaster restoration and decorative finishes to ornate architectural details, each image reflects the precision required to preserve spaces of this scale and significance.

Historic restoration is more than repairing what is damaged it is protecting the artistry, character, and legacy of a space so it can continue to be experienced for generations to come.

Preserving historic interiors since 1964.

05/08/2026

From plaster restoration to decorative finishes, this is what we do.

Inside the historic Woolworth Building, John Tiedemann Inc & HPCS. Preserve and relocate a remarkable coffered plaster ceiling originally from Mr. Woolworth’s private office. The ceiling was carefully dismantled piece by piece, restored, and reinstalled in the residence's entrance lobby, allowing this historic craftsmanship to continue being seen and appreciated for generations to come.

Our work is rooted in preservation, precision, and respect for the architectural details that make historic spaces unforgettable.

Preserving historic interiors since 1964.

Restoration is in the details.Precision work that preserves historic craftsmanship. Check out these amazing before and a...
04/29/2026

Restoration is in the details.
Precision work that preserves historic craftsmanship. Check out these amazing before and after


04/16/2026

We’re heading to CCFM and couldn’t be more excited!
📆April 26-29
📍Kansas City, MO.

This conference brings together an incredible community focused on preserving and maintaining Catholic facilities, something we are deeply passionate about.

Come by and say hello. We look forward to meeting you.

We couldn't be more excited! Have you visited the Castle? If so, which room was your favorite?
03/30/2026

We couldn't be more excited! Have you visited the Castle? If so, which room was your favorite?

🔗: https://l.nj.com/etmhpu
After a years‑long restoration, Lambert Castle reopened to the public, drawing big crowds during its opening weekend. More than 3,000 visitors toured the newly restored site, prompting the county to introduce a timed ticketing system moving forward. Visitors can pre-book tickets for designated time slots for a smoother experience. Lambert Castle is open Wednesday through Sunday from 10 a.m. to 5 p.m.

📷: County of Passaic

We cut scaffold time and cost without compromising care. Our proprietary Boom system reduces scaffolding footprint and a...
02/24/2026

We cut scaffold time and cost without compromising care. Our proprietary Boom system reduces scaffolding footprint and access hours, lowering project costs and minimizing impact on historic interiors. Ready to protect your building and your budget? Learn more: https://wix.to/CDTHaMt
https://wix.to/JE6Wq81

Happy 98th Birthday to the Landmark Theatre Theatre!Since its grand opening in 1928, this iconic gem has been a beacon o...
02/18/2026

Happy 98th Birthday to the Landmark Theatre Theatre!
Since its grand opening in 1928, this iconic gem has been a beacon of inspiration, shining bright with its stunning architecture and rich history. We're honored to have played a part in preserving its intricate beauty, ensuring it continues to uplift and captivate audiences for generations to come.

Here's to many more years of magic and wonder!

02/10/2026

Photos can't tell the whole story, so here's a short little video that shows the hard work, dedication & skill displayed by those restoring our beautiful Shrine. Enjoy!

02/06/2026

The Drawing Room at Lambert Castle has been beautifully transformed. Previously marked by cracks and missing plaster, it now showcases seamless artistry with a warm yellow finish and custom stencil patterns. The stunning fireplace anchors this bright, inviting space.

We're excited to announce that the castle will be open from February 28 to March 1. We hope you’ve enjoyed the before-and-after updates and can’t wait to hear your thoughts and see your experiences shared!




NEW DATE
01/29/2026

NEW DATE

Due to weather conditions and in the interest of public safety, the Lambert Castle reopening events scheduled for Jan. 30 through Feb. 1 have been canceled. The safety of our guests is our top priority. We appreciate your understanding as we take this precautionary step.
Opening weekend has been postponed to Feb. 28 through March 1. Stay tuned for more updates and thank you for your understanding.
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Address

330 Belleville Turnpike
North Arlington, NJ
07031

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