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Back glass replacement, wiring and all
Your rear window is usually carrying a defroster grid and often the radio antenna. Both have to work afterwards.
- Free mobile service — your driveway, your office lot, the park and ride
- ADAS camera recalibration on the same visit, not a second appointment across town
- We bill your insurer directly including through the Safelite Solutions and Lynx networks
- Lifetime no-leak guarantee on our workmanship, for as long as you own the vehicle
You're all set, there.
We've got your request. A Collision Auto Glass tech will call you shortly to confirm the glass, your coverage and a time that works.
Not just a big side window
Back glass is generally tempered, so it shatters completely like a side window — but unlike a side window it is usually bonded to the body with urethane rather than riding in a channel. So it combines the worst of both: several thousand fragments to clear, and a structural adhesive bond with a cure time.
It also has things printed on it. The defroster grid is baked into the glass and connects to the loom at two tabs, and on a great many cars the radio antenna is printed into the same surface. Get the connections wrong and you have a new window, no rear demist and no radio.
Where the fragments actually go
Further than people expect. A rear window failing on a hatchback or a wagon puts glass across the load floor, under the parcel shelf, down the seat backs and into the spare wheel well. On a saloon it goes into the boot and into the gap between the rear seat and the shelf, which is exactly where it stays until somebody folds the seat down months later.
Clearing it is part of the job, and it takes longer than the glass does.
Check the defroster works before we leave
It is the easiest thing in this trade to discover a week later, and the most annoying to go back for. Run the rear demist with us there and put a hand on the glass — you should feel the grid warming within a minute or two.
Same for the radio, if your antenna is printed into the back glass. Two minutes standing in the driveway is worth more than any assurance we could give you about it.
Weather, cure time and why this one often comes indoors
Because back glass is bonded, it has the same requirements as a windshield: a clean dry bonding surface and a safe drive-away time that stretches as the temperature drops. A steady Portland downpour is a poor environment for a structural bond you want to last the life of the car.
So this is one of the jobs we will more often bring into Cedar Mill or Tualatin rather than doing on a driveway, particularly between November and March. We will say so when you book rather than turning up and changing the plan.
Glass, and the camera behind it
One team handles the glass and the calibration in the same visit. Nothing gets driven across town to a second shop, and nothing gets billed twice.
Windshield replacement
New glass, set by two people, with the camera behind it recalibrated in the same visit.
Windshield replacement →Chip and crack repair
Rock chips, star breaks and cracks — resin injection while the damage is still small enough for it to work.
Repair or replace? →ADAS calibration
Autel MaxiSYS, in-house. The camera behind your glass gets aimed and confirmed.
ADAS calibration →Side and door glass
Tempered glass, the pebbles inside the door, and the regulator that often broke with it.
Side and door glass →Back glass
Defroster grid, antenna, and several thousand pebbles in the load area.
Back glass →Mobile service
Free across the service area. What we need from the space, and when it is a bad idea.
Mobile service →Three steps, no shop visit
Tell us what broke
Send the form or call. Your VIN or plate gets us the exact glass for your vehicle, including whether it carries a camera, rain sensor or heating element.
We check your coverage first
Before anyone is dispatched we confirm what your policy covers and what your deductible actually is, so the price you hear is the price you pay. No claim is filed until you say go.
We come to you
Your driveway, your office lot, your job site — at no extra charge. We fit the glass, recalibrate the camera if there is one, and tell you when it's safe to drive.
What Oregon drivers actually pay, and who gets to choose
Glass claims are the part of this job customers have been given the most wrong information about — including by shops. Here is what is actually true in Oregon.
Your insurer does not get to pick the shop
Oregon law is explicit about this. ORS 746.280 prohibits an insurer from requiring you to use a particular repair shop, and requires them to tell you so. If a claims line tells you that you have to use their network shop to be covered, that is not how it works — you can name us, and the claim is handled the same way.
So what will it cost?
It depends entirely on your policy, and we will not pretend otherwise. Glass is generally handled under comprehensive cover rather than collision, and the deductible is whatever your policy says it is. Oregon does not mandate zero-deductible glass — a handful of states do, and Oregon is not one of them, whatever you may have read. Call with your carrier and policy and we will tell you what we see on similar claims.
A chip is a different conversation from a crack
Many carriers treat a repairable chip differently from a full replacement, because a resin repair costs them a fraction of the glass. Whether yours does is a question for your policy, not for us — but it is worth asking before you assume a chip is not worth claiming. We bill carriers directly, including through the Safelite Solutions and Lynx third-party networks.
No insurance? Most of our calls
Plenty of people pay cash, either because the deductible is higher than the job or because they would rather not touch the policy. You get the same glass, the same urethane, the same calibration and the same guarantee. Tell us the year, make and model and we will quote it outright.
We are not affiliated with, endorsed by or acting as an agent of any insurance company. Carrier and network names appear here only to describe who we bill.
Real vehicles, real driveways
What customers say
Had a rock chip that grew to a huge crack. Called around and noticed the reviews for Collision Auto. I spoke with Scott who was very helpful and personable and I got a quote very quickly. And to clarify, I did go to Safelite to get a quote and they had 3 different prices, at Collision, it was just one price. I was unable to get it done for a few weeks, called Scott and he was able to get me right in with the same quote he gave before. They did a great job, took a couple of hours so I stayed in their waiting room and worked. It was quiet, clean and comfortable, and their WiFi worked great. I highly recommend them for your car window needs.
From the moment I called, I was treated with kindness and professionalism. Everyone—from the staff who answered the phone to the technicians who completed the work—made the entire experience easy and stress-free. The lobby was exceptionally comfortable, and I truly felt like I was treated as family, not just another customer. The level of care, attention to detail, and customer service was outstanding. I highly recommend Collision Auto Glass & Calibration to anyone looking for honest, friendly, and top-quality service. Thank you for making such a great experience!
Great experience at Collision Auto Glass & Calibration. I was referred by Land Rover Portland. From the moment I called, Brad was very helpful and easy to work with. He walked me through the insurance claim and explained the process from start to finish. It took a few days for the insurance to process, but once they had my vehicle, the turnaround was quick—about 4 hours. Professional, flexible, and they even have a really sweet dog greeting customers. Highly recommend for window replacement!
Verified Google reviews for Collision Auto Glass & Calibration · read all 365 on Google
4.9 stars from 365 Google reviews
This is our Cedar Mill shop, just off the Sunset Highway. The postal address reads Portland, but it sits in Washington County rather than inside Portland city limits — our vans cover the city itself.
365 reviews
- Cedar Mill shop
- 14201 NW Science Park Dr
Portland, OR 97229 - Service area
- Portland, the Westside & the South Metro — shop and mobile
- Hours
- Mon–Fri 7:30am–4:30pm · Sat closed · Sun closed
Portland, the Westside & the South Metro coverage
Two shops, Cedar Mill and Tualatin, and mobile vans working out of both. If your town is not named below, call and ask — the honest answer is sometimes no, and you should get it before you book rather than after.
What the warranty actually covers
"Lifetime warranty" is meaningless unless somebody writes down what it includes. Here's ours.
Covered, for as long as you own the vehicle
- Water leaks caused by our installation
- Wind noise caused by our installation
- Moulding and trim failures from our fitting
- Workmanship defects of any kind on our install
Not covered — and we'd rather say so up front
- New impact damage — a fresh rock is a fresh job
- Stress cracks spreading from damage that predates our work
- Defects in the glass itself, which carry the manufacturer's warranty
- Damage from a later collision or a break-in
Frequently asked
Yes — the new glass comes with its own grid and we reconnect it to the loom. Test it with us before we leave. What we cannot restore is a grid damaged by scraping ice off the inside of old glass; that is a different repair and it is worth mentioning if the demist was already patchy.
Common, and we reconnect it as part of the job. Worth checking reception with us there for the same reason as the defroster. If reception was already poor before the glass broke, tell us — that points at the amplifier or the feed rather than the glass, and a new window will not fix it.
Longer than a side window, largely because of clearing fragments out of the load area, and it carries a safe drive-away time because the bond is structural. The technician gives you the actual figure for the adhesive and the day's conditions before leaving.
Almost never — tempered glass does not hold a repairable crack, it disintegrates. If your back glass is somehow holding a crack, it may be laminated, which a small number of vehicles use. Send a photo and we will tell you which you have before booking anything.
Get your glass sorted this week
Send the form and we'll confirm your glass, your coverage and a time — or just call and talk to somebody now.