Lighting Maintenance Guide: Keep Your Fixtures Looking and Performing Their Best

Even the most energy-efficient lights won't perform well — or safely — if they're not properly maintained. Here's how to extend the life of your lighting.

Lighting is often a set-and-forget part of the home, but over time, fittings can degrade, dirt can build up, and connections can wear out. Without regular maintenance, you risk reduced brightness, increased energy use, flickering, buzzing, and even potential safety hazards. 

General Maintenance Checklist

1. Clean Your Light Fittings

Dust and grime on globes or covers can reduce light output dramatically. Wipe down fixtures with a dry or slightly damp cloth (not while switched on or hot), and clean diffusers or covers where accessible. The Los Angeles Department of Water and Power recommends cleaning fixtures, lamps, and lenses every six to 12 months. Repainting small rooms annually and larger rooms every two to three years also helps — dirt on surfaces reduces the amount of light they reflect. 

2. Replace Lamps in Groups

Lamps can lose up to 30% of light output over their service life. Replacing all lamps in a lighting system at the same time — rather than replacing individual lamps as they burn out — saves labor, keeps light levels high, and avoids stressing ballasts. 

3. Check for Flickering or Buzzing

Flickering can be caused by loose connections, incompatible dimmers, or aging fittings. Buzzing is often a sign of a failing ballast or transformer. Persistent issues should be inspected by a licensed electrician. 

4. Inspect Fittings and Mounts

Look for cracks, heat damage, corrosion, or signs of moisture. Replace damaged components promptly to avoid hazards. For outdoor fittings, clean off spider webs, mud, or salt buildup, and check for water ingress or rust. 

5. Test Light Levels Periodically

Ensure that illumination meets the needs of the space and the tasks being performed. The Illuminating Engineering Society provides light level recommendations for reference. 

When to Call a Professional

You'll need a licensed electrician for: replacing a light fitting, rewiring a connection, installing dimmer switches or automation controls, or investigating unusual heat, sparks, or burning smells. Any work beyond cleaning and globe replacement should be left to a qualified professional. 

Lightingology Insight: 

All our fixtures are designed for easy maintenance — with accessible components and high-quality materials that resist wear. For custom pieces, we provide detailed care instructions to keep your investment beautiful for years.