How to Care for an Oil Painting So It Lasts Centuries
A hand-painted oil portrait is built to outlive everyone in it — but a little simple care keeps it luminous along the way. The good news is that oil paintings are tough and low-maintenance; you don't need special training or products, just a few sensible habits and one or two things to never do. Here's everything you need to keep a portrait looking its best for generations.
The three things that matter most
If you remember nothing else, remember these:
- Keep it out of direct, constant sunlight. Ultraviolet light is the single biggest threat to any artwork over time. A wall that doesn't get hours of direct sun each day is ideal. Indirect daylight is fine.
- Keep the climate stable. Oil paintings prefer ordinary, steady room conditions. Avoid big swings in temperature and humidity — so steer clear of hanging directly above a working fireplace's heat, in a steamy bathroom, in an unheated room, or against a cold exterior wall.
- Dust gently, and rarely. A soft, dry cloth or a clean, soft, dry brush — lightly. That's the entire routine for years at a time.
What never to do
A few don'ts protect your portrait from the most common accidental damage:
- Never use household cleaners, sprays, water, or solvents on the painted surface. They can dull, smear, or permanently harm the paint and any protective varnish.
- Don't wipe a "dirty" painting with a damp cloth hoping to clean it. If a painting ever genuinely needs more than a gentle dusting after many years, that's a job for a professional art conservator — never a DIY scrub.
- Don't hang it over a heat source or in a humid room, as above.
- Don't lean objects against the canvas or press on its surface — oil paint is durable once cured but the canvas can dent.
Lighting it well (and safely)
Good lighting makes a portrait glow without harming it. Use soft, warm light angled from above or the side — a picture light over the frame is classic — rather than a harsh, hot lamp aimed straight at the canvas. Warm-toned bulbs flatter the skin tones and brushwork; cold, blue-white light can make a painting look flat. (More on placement and lighting in where to hang a portrait.)
Moving or storing a painting
If you ever need to move or store your portrait, keep it upright (never flat with weight on top), wrap it in clean, soft, breathable material rather than plastic pressed against the surface, and store it somewhere with stable temperature and humidity — not a hot attic or a damp basement. Treat it like the heirloom it is and it will travel through generations intact.
The reassuring bottom line
Caring for an oil portrait is genuinely easy: keep it out of harsh sun, in normal room conditions, dust it gently, and never take a wet cloth or cleaner to it. Do that, and the painting you commission today will still be rich and alive long after — which is exactly why oil is the medium of heirlooms. (See why oil portraits last for generations.)
Start the heirloom — see it first, free
At the National Portrait Service, upload your photo and we'll send you a free mockup within 48 hours — no payment to start. Every portrait is real oil on canvas, hand-painted and delivered framed, made to be cared for and passed down for generations.
New to commissioning? Start with our complete guide on how to commission an oil portrait from a photo.