Foggy Headlights: Restore vs Replace Cost Comparison
Cloudy, yellowed headlights are the single most aging cosmetic flaw on a car — and they cut your nighttime visibility by up to 80%, according to AAA's headlight aging study. Good news: nine times out of ten you don't need to replace anything. Here's the breakdown.
What's actually happening to your lenses
Modern headlight housings are polycarbonate plastic with a thin UV-protective topcoat. Sunlight, road grit, and bug splatter wear the topcoat off. Once it's gone, the polycarbonate itself oxidizes — that's the yellow haze you're seeing. The plastic is fine. The coating is gone.
Restoration: how much, what's involved
A professional restoration wet-sands the oxidation off in graduated grits (800 → 1500 → 3000), polishes the plastic back to optical clarity, then applies a fresh UV-blocking sealant that lasts 1–3 years. Total time: 30–60 minutes for the pair. Total cost at Onyx Pristine:
Replacement: how much, what's involved
A new headlight assembly from a dealer or aftermarket supplier varies wildly by vehicle:
Total replacement on most daily drivers lands between $500 and $1,200. On luxury vehicles with adaptive LEDs, it can clear $3,000.
When to restore
- Lenses are yellow, hazy, or cloudy.
- Light output looks dim or scattered at night.
- The plastic is intact — no cracks, no internal moisture.
- You want this fixed today, not in two weeks.
When to replace instead
- The lens is cracked or has visible fractures (water will get in).
- Internal condensation that won't dry out — the housing seal is broken.
- The reflector inside has gone dull/peeling — that's not the lens, that's the chrome.
- The bulb itself is failing (different problem, $20–$60 fix).
Cincinnati-specific note
If you park outside year-round, your topcoat will fail again in 18–24 months even after restoration. We recommend an annual top-up service (about $40) to keep them clear indefinitely. We can do the restoration and the top-up at your driveway — no shop visit, no lift required.
Book restoration → · text photos to 513-409-1944 for a quote.