Preservation Trades Training Workshops

Learn. Restore. Preserve.

Victoria Mansion’s Preservation Trades training initiative was born in part through the organization’s direct experience with the severe shortage of preservation trades professionals in northern New England.  Older and historic buildings have unique needs and require special understanding and care.  Victoria Mansion relies on a talented team of woodworkers, masons, and painters to maintain and preserve our National Historic Landmark property, but we have long worried about the shrinking pool of qualified workers.

These two-week intensive training programs are aimed at practicing tradespeople interested in acquiring the specialized skills required to work sensitively on older and historic buildings.

According to Timothy Brosnihan, Victoria Mansion’s Executive Director, “Currently many of the state’s most experienced preservation experts are approaching retirement and will leave an enormous vacuum if their skills are not transferred to the next generation. At Victoria Mansion, we continually struggle with the shortage of skilled, hands-on preservation practitioners. We see these training seminars as an opportunity to chip away at this problem, creating positive spillover effects that will benefit the stewards of other historic buildings throughout the state of Maine.”

For further information about the shortage of trades professionals in historic preservation, refer to Understanding and Advancing the Preservation Trades published by the Northeast Regional Initiative for the Preservation Trades, University of New Hampshire Cooperative Extension, February 2023.

2026 Training Workshop: Conserving and Restoring Historic Flat Plaster Finishes

This year, we are partnering with preservationist John Leeke and plasterer Peter Lord to offer a two-week course in the repair and replication of historic flat plaster finishes.  This course will be of interest to tradespeople who work directly with plaster as well as carpenters, painters, and other tradespeople whose work intersects with historic plaster finishes.

The class will help you understand how plaster systems work, how they can be maintained and repaired, and why they are worth saving.

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Workshop Schedule

August 3-7 and 10-14, 2026

Purpose:  Train practicing tradespeople in the special knowledge and skills needed to preserve and restore historic plaster finishes.
Format:  10 days of daily training, 8:00am to 5:00pm, in an on-site shop set up specially for this training at Victoria Mansion in Portland, Maine.

Participation in the class is limited and subject to a competitive application process. Notably, the trainees will receive a weekly stipend to help make attendance feasible for working professionals.

You must be a tradesperson actively and currently working in the building trades in the greater Portland area or a student with a demonstrated interest in hands-on historic preservation. You will be notified if you are accepted or not.

To apply, please complete the application form here.

 

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Hands-on Training Curriculum   

Trainees learn to build and plaster 4’x4’ panels:
  • Three coat plaster on sawn lath with grounds
  • Two-coat plaster on metal lath
  • One-coat veneer plaster on seeded gypsum board (BlueBoard)

Preservation & Repairs

  • Plaster reattachment
  • Plaster infill, matching existing plaster system and materials
  • Stabilization and Fire Safety Upgrade (screwed on ½” gypsum wallboard)

 

Demonstrations
  • Matching various surface textures

 

Bibliography

Books and Articles provided for reading assignments during training

  • Audels Masons & Builders Guide, volume #4, 1924 (each trainee to receive a copy)
  • Plastering Skills, Branden & Hartsell, 1953, 1984 (alternate for trainee copy)
  • Plastering, Plain & Decorative, William Millar, 1897, 1927
  • Concretes, Cements, Mortars, Plasters & Stucco, how to use and how to prepare them, Hodgson, 1906
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Funding Partners

Victoria Mansion gratefully acknowledges the support of the following funding partners:

  • The Cascade Foundation
  • Maine Historic Preservation Commission, Historic Preservation Fund
  • Maine Community Foundation, Community Building Fund
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