Plaster Restoration & Stabilization
Halt failure and return your historic, decorative plaster to its original beauty.
Plaster was commonly used in historic structures as both a construction medium as well as a form of ornamentation in the form of decorative mouldings, medallions, cornices, friezes, and other elements—often to stunning effect.
Unfortunately, it is not uncommon for historic plaster elements (both ornamental and flat) to crumble, crack, swell, broken keys, failing wood lath or otherwise fail with age. If you own or are working on a historic structure that includes failing historic plaster, restoring and stabilizing the plaster is the first crucial step to achieving lasting decorative paint and other finishes.
John Canning & Co.'s expertise in plaster restoration, stabilization, and replication is among the most respected in the industry. Our craftsmen do everything from traditional three-coat flat plaster and traditional lime plaster to the replication of delicate period elements. Just some of the techniques that our skilled artisans are adept at include running moulds, and ornamental fabrication, seamless acoustic plaster, integrally pigmented plaster, traditional plaster renders, scagliola plaster fabrication methods, and simulated effects such as ashlar block and textured plasters.
Our work with plaster has evolved to include complex conservation and stabilization projects that other firms wouldn't even attempt. By applying our creative problem-solving methods to the demands of failing plaster substrates, we have arrived at innovative solutions to demanding problems.
"Canning’s thorough knowledge of period decoration and methodology, as well as traditional materials, was a valuable contribution to the project team.”
— AMANDA EDWARDS, PA-AIC, LEED GREEN ASSOC., JOHN MILNER ASSOCIATES, INC. ARCHITECTS, ARCHEOLOGISTS, PLANNERS, ALEXANDRIA, VIRGINIA
“It has been my pleasure to work with the John Canning & Co. for over 15 years. Their talent and skill in execution is unique in the arena of historic restoration projects.”
— MICHAEL A. MACDONALD, DIRECTOR OF BUSINESS DEVELOPMENT, DOWNES CONSTRUCTION COMPANY, NEW BRITAIN, CONNECTICUT
“We have chosen to work with Canning almost exclusively on decorative conservation work for over twenty years in recognition of their overall abilities.”
— ARTHUR H. PAGE IV, PAGE CONSERVATION, INC., WASHINGTON DC
The process of plaster restoration and stabilization varies from project to project based on a number of factors. That being said, the text below outlines generalized steps in our process.
At the beginning or each engagement, our first aim is to understand the history of the structure so that we can ensure that our work will preserve and enhance the historic fabric of the building. This may involve conducting archival research to help us fill in the gaps, but this is not always necessary.
We then seek to understand the conditions of the existing plaster and the underlying structure upon which it sits. The goal is twofold: First, to understand the cause of the original failure so that it can be addressed and resolved, in order to prevent future failure; second, to determine whether or not the underlying structure is sound enough to build upon or work with. It’s for this reason that many plaster restoration and stabilization projects begin with a plaster conditions survey.
After the cause of the failure has been identified and resolved, or sometimes beforehand, we stabilize the existing plaster. This may include reinforcement, consolidation, dismantling and reattachment, or patching as necessary. Once the existing plaster is stabilized and the risk of future failure is removed, the existing plaster will be restored as necessary, and recreated anywhere that gaps or damage exist.
The exact cost of plaster restoration and stabilization naturally depends on a number of factors. These include, but are not limited to:
- Whether or not the process begins with a plaster conditions survey
- The size of the work
- The complexity of the work
- The location of the work, and required access (for example, whether or not scaffolding will be required to access the space)
- Special materials cost, such as consolidants, adhesives, etc.
For this reason, it is difficult to say what the “typical” cost for plaster restoration and stabilization may be. The surest way to get an accurate idea of what costs your project may entail is to contact us directly.