Two quotes for the same cracked windshield can land two hundred dollars apart, and the glass in both boxes might have rolled off the same production line. That gap confuses almost everyone who calls us, and most of the confusion comes down to one word doing too much work: “aftermarket.”

Most “aftermarket” glass isn’t aftermarket at all

The glass we install on most jobs is what the industry calls OEM-equivalent, or OEE. It’s made by the same handful of major suppliers, Pilkington, Saint-Gobain, AGC, Fuyao, that supply the automakers in the first place, to the same thickness and curvature. The only thing missing is the manufacturer’s logo etched in the corner. It meets the same Transport Canada CMVSS 205 safety standard as the glass your car left the factory with. That’s a completely different product from cheap, generic aftermarket glass with no supplier pedigree behind it, and lumping them together under one word is where most of the anxiety about this decision comes from.

Where the price actually goes

Dealer-branded OEM glass runs through the automaker’s parts channel, with their logo and their markup attached. Strip the badge and source the identical spec straight from the glass maker, and the price drops 20 to 40 percent. That saving is real, not a corner cut. The mistake we see every few weeks is a customer told they’re getting “OEM” when what showed up is unbranded, no-name glass that never touched Pilkington’s or AGC’s production line, thinner in spots, with a windshield camera bracket molded slightly out of tolerance. That’s the actual quality gap to watch for, and it has nothing to do with whether a logo is etched in the corner.

When you actually need true OEM

There are real cases where the badge matters. Some lease agreements and a handful of insurance policies specify OEM parts by name, and you don’t want to find that out after the install. Vehicles with a windshield-embedded heads-up display need the exact factory curvature for the projected image to sit right, and that’s typically a true-OEM-only part. A few luxury trims spec acoustic interlayers or infrared coatings that only the dealer channel carries. Outside of those cases, OEM-equivalent from a real supplier performs identically for the price of a used set of tires.

Does going aftermarket void your warranty?

In most cases, no. Ontario and federal consumer protection rules don’t let an automaker void your warranty just because a part isn’t OEM, as long as it meets the required specification, which properly sourced OEM-equivalent glass does. Where it gets murky is if your specific warranty language calls out OEM glass by name, which is why it’s worth a two-minute read of your paperwork before you agree to anything over the phone.

Do this today

Before you book anywhere, ask two direct questions: which supplier is the glass coming from, and is it OEM, OEM-equivalent, or generic aftermarket. A shop that can’t answer both without checking is guessing. If you’re in Tillsonburg or anywhere else in the region calling around for quotes, ask the same two questions every time and you’ll spot the outlier fast. Or skip the phone tag entirely and get your exact quote in 2 minutes at /get-estimate/, where we’ll show you both the OEM-equivalent and true OEM price side by side so you’re choosing with real numbers, not guesswork.

Whichever glass you land on, a windshield with a forward-facing camera needs the bracket seated and the camera recalibrated to factory tolerance after the swap. That’s work we do in-house rather than farming it out, because a camera calibrated on mismatched glass is a lane-assist system quietly reading the road wrong. Full details on the glass itself are on our OEM-equivalent glass page, and the replacement process end to end is on our windshield replacement page.

Frequently asked questions

Is aftermarket windshield glass safe?

OEM-equivalent glass from a real supplier like Pilkington, Saint-Gobain, AGC, or Fuyao meets the same CMVSS 205 safety standard as factory glass. Generic no-name aftermarket, with no supplier behind it, is the version worth avoiding.

Does OEM-equivalent glass affect ADAS calibration?

Not when it’s sourced properly. The camera bracket and optical zone are built to factory spec, so calibration works the same as it would on true OEM glass. Cheap, mismatched glass is where calibration problems actually start.

Will insurance cover OEM glass, or only aftermarket?

Most Ontario comprehensive policies cover OEM-equivalent glass by default and will cover true OEM only if your policy or lease specifically requires it. Check your policy wording, or ask us to check it with you.

Can I request true OEM glass instead of OEM-equivalent?

Yes. We can source true dealer OEM glass on request, it just costs more, and we’ll always quote both options so you’re the one making the call.