Auto Glass Installation Job Checklist

Most customers think of a windshield as a window. It is not. In a modern vehicle, the windshield contributes to roof crush resistance, provides the backstop that the passenger airbag deploys against, and carries the camera that runs lane keeping and automatic emergency braking.

An improperly bonded windshield can separate in a rollover. An uncalibrated camera can cause the vehicle to brake or steer at the wrong moment. Neither failure shows up on the drive home.

That is why this trade runs on adhesive specifications, cure times, and calibration procedures rather than on speed.

Job Intake

Record the vehicle year, make, model, and trim
Record the VIN
Confirm the glass part number from the VIN, not the model alone
Confirm the features present: rain sensor, heated wiper park, acoustic interlayer, HUD
Confirm whether the vehicle has advanced driver assistance systems
Confirm which cameras or sensors mount to the glass
Confirm whether calibration is required and which type
Confirm insurance or customer payment
Confirm the job location: shop or mobile
Confirm the customer's availability for the full cure time

The part number from the VIN is not optional. The same model year can carry six different windshields, and the wrong one means a wasted trip and a damaged part.

Deciding Repair Versus Replacement

Measure the damage size
Determine the damage location relative to the driver's view
Determine whether the damage penetrates both layers
Confirm the damage is not in the camera's field of view
Confirm the damage is not at the edge of the glass
Recommend repair where it meets the standard, replacement where it does not
Explain the decision and the outcome expectation to the customer

Repair is often the correct recommendation and it is what builds trust. A shop that always replaces is a shop customers stop trusting.

Mobile Job Assessment

Confirm the work location is level and sheltered
Confirm the temperature is within the adhesive's specification
Confirm no rain or high humidity beyond the adhesive limits
Confirm access around the entire vehicle
Confirm power availability if needed
Decline or reschedule if conditions fall outside adhesive requirements

Adhesive has published temperature and humidity limits. Working outside them produces a bond that looks fine and is not.

Preparation

Confirm the correct glass part against the vehicle before removal
Inspect the new glass for defects, distortion, and correct hardware
Photograph the vehicle's pre-existing condition, including paint and trim
Photograph the existing glass damage
Protect the interior: dash, seats, and console
Protect the hood and fenders
Confirm the customer has removed personal items from the dash

Removal

Disconnect and protect any sensors and wiring at the glass
Remove cowl, trim, and moldings without breaking clips
Note and set aside all clips and fasteners
Cut the urethane bead using the appropriate tool
Avoid cutting into the pinch weld or paint
Remove the glass with two people or proper handling equipment
Set the removed glass aside safely for recycling or disposal

Cutting into the pinch weld paint is the most common installation error and it causes rust that eventually destroys the bond. It also voids most adhesive warranties.

Pinch Weld Preparation

Trim the existing urethane to the specified remaining thickness
Do not remove urethane down to bare metal unnecessarily
Inspect the pinch weld for rust, damage, or prior repair
Treat any exposed metal with the specified primer
Confirm the primer's flash time before proceeding
Clean the bonding surface per the adhesive manufacturer's instruction
Confirm no contamination, oil, or moisture remains

Full cut-out down to metal requires a specific primer and process. Skipping it creates a bond to bare steel that will corrode.

Glass Preparation

Clean the glass bonding surface with the specified cleaner
Apply glass primer where the adhesive system requires it
Observe the specified flash time
Install any moldings, clips, and hardware to the new glass
Confirm the mirror bracket, sensors, and brackets are correctly positioned
Do not touch the primed surfaces

Setting the Glass

Confirm the urethane is within its shelf life and within its temperature range
Apply a continuous bead at the specified height and profile
Confirm no gaps or breaks in the bead
Set the glass using proper alignment aids
Confirm the glass is centered and evenly gapped
Press to full seat without squeezing the bead flat
Confirm the glass contacts the setting blocks correctly
Clean any excess urethane immediately

The bead height determines the bond thickness. A flattened bead is a weak bond, and it is invisible once the trim is on.

Reassembly

Reconnect all sensors and wiring
Reinstall cowl, trim, and moldings with new clips where broken
Reinstall wipers in the correct park position
Confirm all fasteners are torqued or seated
Confirm the rain sensor gel pad or coupling is correct
Confirm no wiring is pinched

Safe Drive-Away Time

Confirm the adhesive's safe drive-away time for the conditions
Confirm the temperature and humidity at the job
Inform the customer of the exact time the vehicle may be driven
Provide the safe drive-away time in writing
Instruct the customer to leave a window slightly open
Instruct the customer to avoid car washes and rough roads for the specified period
Instruct the customer to leave retention tape in place as specified

Safe drive-away time varies with temperature and humidity, sometimes by hours. Telling the customer a number from memory rather than from the chart is how a vehicle leaves before the bond can hold in a crash.

Calibration

Confirm which calibration the vehicle requires: static, dynamic, or both
Confirm the calibration environment requirements: level floor, lighting, target distance
Confirm the vehicle's fuel level, tire pressure, and load meet the procedure
Perform the calibration per the manufacturer's procedure
Confirm the calibration completes without fault codes
Document the calibration result and retain the report
Perform the road test where the procedure requires it
Confirm no warning lights remain

A vehicle released without a required calibration is a vehicle whose driver assistance systems may act on bad data. Document the calibration or document that the customer declined it in writing.

Quality Check and Delivery

Inspect the installation for even gaps and correct alignment
Confirm no urethane is visible or on the paint
Test for wind noise and leaks with a water test where appropriate
Confirm all electrical functions work: sensors, defrost, mirror, HUD
Clean the glass inside and out
Clean the interior of any debris
Walk the customer through the work and the aftercare instructions
Provide the warranty terms in writing
Present the invoice and collect payment or confirm the insurance billing

End of Day

Complete all job records with photos and part numbers
Attach all calibration reports to the job
Dispose of or recycle the removed glass
Confirm adhesive inventory and shelf life dates
Restock consumables: primers, cleaners, clips, blades
Report any tool issue
Confirm tomorrow's jobs and confirm parts are ordered

Adhesive shelf life is checked and enforced. Expired urethane does not cure to its rated strength and there is no way to see that from the outside.

How MyTeamTasks Helps

A shop running mobile technicians cannot confirm from the office that the pinch weld was primed correctly or that the safe drive-away time was communicated with the actual conditions. A shared task system runs the installation sequence on each technician's device, requires photos at pinch weld preparation and bead application, and captures the calibration report against the job. When a customer returns with a leak or a warning light, the record shows exactly which steps were completed and under what conditions.