A black and white line-art icon of an artist's paint palette with a brush resting horizontally underneath it.

Clean, Repair & Preserve

Paintings Conservation for Oil, Acrylic & Works on Panel

ICA provides paintings conservation for artworks on canvas and panel. We can provide care for a variety of painting types such as paintings in oil and acrylic, polychrome sculptures, mixed media artwork, murals, and more. Based in Cleveland, we serve Ohio and the greater Midwest with projects nationwide. Our dedicated team will assess condition, plan treatments, and return paintings to safe display.

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Common Painting Problems & Solutions

Darkened Varnish & Grime

Varnishes can yellow and airborne pollutants, including nicotine, can dull color and contrast. Cleaning grime and removing spent varnish can make a remarkable visual difference,  revealing a painting’s original hues and details while respecting the paint layer below.

Flaking or Lost Paint

Flaking or lifting paint can occur from age, humidity swings, or prior damage. When the paint is lost, it can leave distracting blank areas in a composition. We re-adhere fragile paint layers to secure the surface and inpaint losses to restore visual continuity.

Tears or Holes

Accidental punctures and tears are addressed through precise canvas repair, thread alignment, backing support when needed, fills, and careful color integration so imagery reads cleanly.

Warped or Loose Canvas

Loose tacking, slack canvas, or deformed supports can be corrected through re-stretching, edge reinforcement, or lining options that provide appropriate structural support.

A woman wearing purple gloves is working on a red object

Materials & Formats We Treat

Canvas, Panel Painting, Murals & Contemporary Media

We treat oil and acrylic paintings on canvas and panel, as well as tempera, polychrome sculptures, gilded and decorated surfaces, and large-scale works including murals. All works undergo testing and condition assessment to inform tailored treatment approaches, ensuring material stability and preserving visual integrity across a range of media and techniques.

Process & Standards

Condition Report, Treatment Proposal, Clear Documentation

Projects begin with a detailed examination and written condition report documenting structure, materials, and condition issues such as flaking paint, surface grime, or previous overpaint. A treatment proposal is then provided outlining recommended procedures—including cleaning, stabilization, canvas repair, and loss compensation—along with an estimated timeline. All treatments follow the AIC Code of Ethics and Guidelines for Practice, with materials selected for stability and reversibility where appropriate. Each project includes before-and-after photography and concludes with a written report and tailored care recommendations.

A man is painting a picture on an easel in a studio.
A woman wearing purple gloves is working on a red object

Preventive Care After Treatment

Display, Framing & Environmental Guidance

After treatment, our team will provide practical advice for display and storage: stable humidity, avoiding direct sunlight, and using UV-filtering glass and archival backing. Our preservation services also include packing, transportation, installation, and mounting recommendations to keep paintings protected during exhibition and travel across the North Coast and the wider Midwest.

Project Highlights

An antique wooden chest with painted courtly figures, standing on small feet against a grey background.
An ornate, gold-painted wooden box featuring a central painted scene of figures on horseback and two standing figures.

 Jessie Bayes (1876-1970), Casket

Cranbrook Center for Collections & Research, Bloomfield Hills, MI


Treatment Summary: This 1920 carved, painted, gilt casket arrived at ICA with significant paint loss and flaking of the paint and gilding, missing hinge hardware and a missing foot. All surfaces were cleaned and flaking media consolidated and stabilized to prevent further loss. The lid received structural repairs, new hardware was sourced, and a replacement foot was cast using epoxy.


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A Renaissance painting of a woman in a red and green robe holding a child who reaches toward her face in an interior.
Renaissance painting of a woman in a blue cloak holding a child, with flowers and fruit on a shelf in the background.

School of Botticelli, Madonna and Child with Pomegranates, Late 15th-early 16th c., tempera and oil on panel (2025.047)

Raclin Murphy Museum of Art


Treatment Summary: This painting arrived at ICA in fair condition. Treatment focused on removing the discolored varnish and retouching as needed.


An oil painting shows a figure tending to horses in a lush, cloudy landscape with tall trees.
An oil painting of a landscape with a person tending to horses and a dog near trees under a cloudy sky.

Thomas Gainsborough (1727-88), Packhorses (The Midday Rest), 1786, oil on canvas

Chazen Museum of Art, Madison, WI


Treatment Summary: While stable, discolored varnish and previous inpainting were distracting from the image’s legibility. The varnished was removed, as was as much of the previous campaigns of inpainting as safely possible. After cleaning, a stable, reversible conservation varnish was applied and inpainting carried out on losses, as well as on any insoluble previous inpainting, to adjust colors to better match the original surface.


Mural depicting a central figure in a suit holding a document, with a globe nearby and portraits of men below.
A mural featuring portraits of historical figures, including a central man with a globe and building schematics.

Mural series, James A. Garfield Memorial

Lake View Cemetery, Cleveland, OH


Treatment Summary: In 1952, this series of four murals detailing key moments in the life of President Garfield was installed in the Garfield Memorial in Lake View Cemetery. First examined in 2021, the series was conserved in situ over the course of six weeks in the fall of 2024. Treatment ranged from varnish removal and consolidation of insecure paint and securing areas of detaching canvas substrate, to overall cleaning, including removing a colony of ladybugs that had taken up residence behind one of the canvases. The paintings brightened dramatically and are much more legible from the ground.


Regional Reach

Rooted in Cleveland, Serving the Midwest—and Beyond

From Cleveland’s University Circle to Columbus’s Short North, Cincinnati’s Mt. Adams, Pittsburgh’s North Shore, and Indianapolis’s Broad Ripple, we support museums, galleries, community collections, and private owners. Coordinated shipping and on-site options are available for pieces that cannot travel.

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FAQ: Answers to Common Painting Conservation Questions

  • My painting looks yellow and dull. Can cleaning really help?

    Yes. Removing discolored varnish and surface grime often reveals original color, depth, and detail. Testing guides the safest approach so original paint remains intact.

  • There’s a tear in the canvas. How do you repair it?

    We align the torn edges, reinforce the area from the reverse when needed. Our team will then fill any losses, and inpaint carefully so the image reads naturally. The goal is structural stability and visual cohesion.

  • Will conservation change how the painting is meant to look?

    Treatments aim to stabilize and, when appropriate, return the original appearance. Cleaning, fills, and inpainting are undertaken with restraint and full documentation so choices are clear.

  • Do you work on modern and mixed-media paintings?

    Yes! Acrylics, textured surfaces, and collage elements are treated with methods and materials suited to each component, following testing to ensure compatibility.

  • What will I receive after treatment?

    You will receive a condition report, treatment proposal, before-and-after photographs, and guidance for display or storage so you can maintain results over time. You are encouraged to keep in touch with our team of experts after your treatment is over!