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This time of year, subtle environmental changes can begin to affect artworks at home and outdoors. As temperatures gradually fall and heating is used more frequently, conditions such as fluctuating humidity, cold drafts and damp can put stress on paintings, works on paper, ceramics and decorative objects. Even weatherproof outdoor murals and garden sculptures are at risk from seasonal shifts.
With these factors in mind, we’ve prepared practical art conservation tips for autumn and winter to help you care for your artwork or collection. By taking simple precautionary steps now, you can prevent gradual yet significant deterioration and ensure your treasured items remain safe throughout the colder months.
Paintings
Avoid Damp & Condensation
During the colder months, moisture from condensation is a frequent issue. This can encourage mould growth on canvases and wooden stretchers. We recommend keeping paintings away from exterior walls, bathrooms, or poorly insulated areas.
Heating & Cracking
Sudden blasts of heat from radiators or fireplaces can cause paint layers and wooden panels to contract, leading to cracking and flaking. Try to maintain stable room conditions wherever possible, with temperatures ideally between 18 – 21°C and humidity around 40 – 55%.
Check for Subtle Changes
Hairline cracks, raised paint edges, or warping in a frame can all be early warning signs of environmental stress. Regular checks during the winter months will help you catch potential conservation needs before they worsen.
Works On Paper
Protect Against Moisture
Paper is highly sensitive to damp environments. Condensation and high humidity can lead to mould, foxing (brown spots), or waviness in works on paper. Display them in rooms with stable conditions and avoid exterior walls that are prone to cold.
Light Levels in Winter
Though daylight hours are shorter, the low angle of the winter sun can still cause UV fading to delicate watercolours, prints, drawings, manuscripts and even photographs. Use blinds, curtains or UV-filtering glazing to minimise exposure.
Safe Storage
If your works on paper are not on display, store them in acid-free folders, portfolios or boxes in a cool, dry place. This helps protect against both damp and fluctuating indoor heating.
Ceramics & Decorative Objects
Temperature Fluctuations
Fine ceramics and decorative objects can suffer from expansion and contraction as heating comes on and off throughout the day. This may lead to fine cracks in porcelain, bone china or glazed surfaces. Keep objects away from radiators, fireplaces and air ventilation systems.
Moisture Risks
Damp interiors in winter can affect porous materials such as terracotta, encouraging salt efflorescence (white deposits) or surface weakening. Stable humidity levels will reduce these risks.
Safe Handling
When dusting or moving objects during winter cleaning, support fragile items from the base. Cold air can make materials slightly more brittle, so extra care is advisable.
Sculptures & Outdoor Murals
Frost & Freeze-Thaw Damage
Outdoor artworks are especially vulnerable during winter. Sculptures and murals exposed to rain followed by freezing temperatures may develop cracks, spalling, or flaking paint. Check surfaces regularly for water ingress.
Weatherproofing Where Possible
If feasible, move smaller sculptures indoors during colder months. For immovable works, consider protective covers, partial canopies, or regular cleaning to reduce pollutant and moisture build-up.
Monitor for Mould & Algae
Damp winter weather can accelerate biological growth on outdoor pieces, particularly murals. Early intervention prevents permanent staining and structural weakening.
We Are Here To Support You
If you are concerned about colder conditions impacting your artwork, please don’t panic. Our team of experienced conservators is here to help.
We can assess any existing damage, recommend the most appropriate conservation treatments and provide tailored solutions to protect your artwork from further deterioration.
Please contact us via email or telephone, or complete the below form for a professional assessment.
