Full Glass Coverage and Zero Deductible Glass by State
The short answer
- Florida, Kentucky and South Carolina are commonly cited as requiring no-deductible glass replacement when comprehensive coverage is carried.
- Arizona, Connecticut, Massachusetts, Minnesota, New York and Rhode Island are commonly cited as states where a zero deductible glass endorsement must be offered or is widely available.
- Everywhere else, full glass is an optional endorsement you buy, usually for a modest annual premium per vehicle.
- These are commonly reported rules, not guarantees. Your declarations page, your carrier and your state insurance department are the authority.
- The endorsement pays off fastest on a high deductible policy, a camera-equipped vehicle, gravel road driving or a long highway commute.
Whether you pay a deductible on a windshield replacement depends on three things: the state you insure the vehicle in, whether you bought a glass endorsement, and what your policy form says. A small number of states are commonly reported to require no-deductible glass replacement for drivers who carry comprehensive coverage. A larger group requires or expects carriers to offer a zero deductible glass endorsement. Everywhere else, it is an optional add-on you have to ask for.
The three regimes
Nearly every situation in the country falls into one of three buckets. Knowing which one you are in tells you what question to ask.
- Statutory no-deductible glass. State law directs that comprehensive coverage pays windshield replacement without applying the deductible. You do not buy anything extra. You do have to carry comprehensive: liability-only drivers get nothing.
- Mandatory offer of a glass endorsement. The state requires carriers to make a zero deductible or reduced deductible glass option available, generally at additional premium. You still have to elect it and pay for it. If you never checked the box, you have a normal deductible.
- Optional add-on. No state requirement. Most carriers still sell a full glass endorsement, and availability varies by carrier and by vehicle. You ask, they quote, you decide.
Commonly cited states, and what to verify
The table below lists the states most often described as having special glass treatment. Treat every row as a starting point for a phone call, not as a statement of current law. Statutes, bulletins and carrier filings change, and how a rule is applied can turn on details such as whether the loss is a repair or a replacement and whether the vehicle is a private passenger auto.
| State | Commonly reported treatment | What to confirm before you rely on it |
|---|---|---|
| Florida | No deductible applied to windshield replacement when comprehensive is carried | That your policy is a private passenger auto policy with comprehensive, and how calibration is handled |
| Kentucky | No deductible applied to glass replacement under comprehensive | Whether the treatment extends to all auto glass or the windshield only |
| South Carolina | No deductible applied to safety glass replacement under comprehensive | What counts as safety glass on your vehicle, and part type language |
| Arizona | Zero deductible glass endorsement commonly offered | That you actually elected it, and the added premium |
| Connecticut | Full glass or reduced glass deductible option commonly offered | Whether side and rear glass are included |
| Massachusetts | Glass deductible waiver option commonly offered | Repair-first language and the shop choice rules that apply |
| Minnesota | Zero deductible glass option commonly offered | Whether the option applies to every vehicle on the policy |
| New York | Full glass endorsement commonly offered | Whether calibration is covered and at what limit |
| Rhode Island | Glass deductible waiver option commonly offered | Any repair-first requirement before replacement is authorized |
| All other states | Optional endorsement where the carrier offers one | Availability, premium, and every item in the fine print list below |
Verify, do not assume. Nothing on this page is legal advice and none of it overrides your own contract. The two authorities that matter are the declarations page and endorsement forms attached to your policy, and your state's department of insurance. Ask your carrier to point to the specific form number that gives you the treatment you think you have.
What a glass endorsement costs, in general terms
Carriers price glass endorsements individually and do not publish uniform rates, so the honest answer is a shape rather than a number. It is a small annual add-on per vehicle, normally in the tens of dollars per year rather than hundreds, and it is priced from your vehicle, your comprehensive deductible, your garaging location and your claim history. On a vehicle with expensive calibrated glass it costs more than on a base model sedan, because the exposure is larger.
The useful way to think about it is break-even frequency. If the endorsement costs you a modest amount each year and it saves you a $500 deductible when you use it, it pays for itself if you replace a windshield roughly once every several years. That is a realistic rate for drivers on gravel, drivers who follow trucks on interstate routes, and drivers in hail-prone regions. It is not realistic for a garaged low-mileage car in a suburb.
Who it pays off for
Buy the endorsement if two or more of these describe you:
- You carry a high comprehensive deductible. At $1,000, almost no replacement produces a payout, so your comprehensive is effectively not covering glass at all. The endorsement restores that.
- You drive gravel, seal-coated or construction-heavy roads. Loose aggregate is the single largest source of rock chips, and exposure compounds with mileage.
- You have a long highway commute. Following distance behind trucks at speed is the classic chip generator, and closing speed is what determines whether a stone leaves a pit or a star break.
- Your vehicle has a forward facing camera behind the windshield. Calibration adds $150 to $800 to a replacement, so the total loss is large enough that a deductible bites hard. See what calibration costs.
- Your glass is expensive by design. A heads-up display wedge PVB, acoustic interlayer, IR coated or heated windshield can push replacement well past $1,000. Our page on glass features explains which ones your vehicle likely has.
- You live where hail is routine. Hail damage is comprehensive, and glass is often part of the loss.
Skip it if you carry a low deductible already, drive a low-value older vehicle where replacement sits in the $250 to $450 band, or park in a garage and drive city miles. In those cases the endorsement premium is likely to exceed what it saves you.
The fine print that decides whether it is worth anything
Two endorsements with the same name can behave very differently. Before you buy, get the answers to these five questions in writing, ideally by email so there is a record.
| Clause to look for | Why it matters | The answer you want |
|---|---|---|
| Parts language: OEM, OEE or "of like kind and quality" | Determines whether you can insist on manufacturer branded glass for a camera or HUD vehicle | OEM allowed where the vehicle maker requires it for calibration, or at minimum an aftermarket part that meets the sensor bracket and optical spec |
| Repair-first clause | Some forms require an attempt at resin repair before authorizing replacement | Fine if the damage is genuinely repairable. Confirm the carrier accepts a technician's written refusal when it is not |
| Calibration coverage | Calibration can be a third of the total bill on a modern vehicle | Static and dynamic recalibration covered as part of the glass loss, with no separate deductible |
| Mobile service | Mobile install is limited by temperature, wind and level ground, and some calibrations must be done indoors | Coverage for in-shop work when calibration or weather requires it, not mobile only |
| Glass covered: windshield only or all glass | Side and rear tempered glass losses (break-ins, vandalism) are a separate exposure | All auto glass if the price difference is small |
| Shop choice | Carriers route glass claims through administrators with network shops | Confirmation that you may use a shop of your choice where state law allows |
The parts and calibration lines are the two that cause real disputes. A vehicle that will not hold a calibration on a poorly specified aftermarket windshield ends up back in the shop, and the argument about who pays happens after the fact. Settle it before the glass is ordered. The mechanics of that conversation are in shop choice and steering and how to file a glass claim.
What zero deductible glass does not change
A glass endorsement changes what you pay. It does not change whether the claim exists. A no-deductible replacement is still a comprehensive claim on your record and still shows up in claim history, which is why frequency still matters at renewal even when your out of pocket is zero.
It also does not change the physics or the law. A chip that is repairable should be repaired quickly regardless of coverage, because a repair preserves the factory urethane bond and avoids a calibration entirely. And a crack in the driver's view can still fail an inspection or draw a citation in states that regulate it, which is documented in the state law section.
If a carrier tells you something about your state's glass rules that does not match your policy documents, your state insurance department is the place to check it. Before you buy or skip the endorsement, run your likely scenario through the claim calculator and the cost estimator so you are comparing the premium against a real replacement number for your vehicle.
Frequently asked questions
Which states have free windshield replacement?
Florida, Kentucky and South Carolina are the states most often cited as requiring no deductible on glass replacement when the driver carries comprehensive coverage. It is not free: you pay for comprehensive coverage. Verify current rules with your carrier and your state insurance department.
What is full glass coverage?
It is an endorsement added to comprehensive coverage that removes or reduces the deductible on windshield and other auto glass losses. Forms differ in whether they cover side and rear glass, ADAS calibration, mobile service and OEM parts, so read the endorsement wording.
How much does a glass endorsement cost?
In general terms it is a small annual add-on per vehicle, typically tens of dollars rather than hundreds, priced from your vehicle, deductible and location. Carriers price it individually, so ask for the exact figure on your own quote rather than relying on a range.
Does zero deductible glass cover ADAS calibration?
Often but not always. Calibration can cost $150 to $800 and some endorsement forms cover only the glass and installation. Ask the carrier to confirm in writing that recalibration of the forward facing camera is included before you assume the job costs you nothing.