ZhoopZhoop Collision & Mechanical offers wheel alignment in Thornhill, with steering angle sensor reset and ADAS camera and radar calibration done in the same building. Our Ontario-licensed 310S technicians check suspension parts first, align all four wheels to your manufacturer’s specs, and show you the before-and-after readings. We’re at 47 Guardsman Rd, Unit 2, east of Bayview Ave between John St and Highway 407.
Call 905-886-2737 Get a free photo estimate
Why ZhoopZhoop for wheel alignment in Thornhill
- Ontario-licensed 310S technicians, and I-CAR certified collision technicians in the same building.
- In-house ADAS calibration, so lane-keep and steering-assist systems are set after the alignment. The car isn’t sent elsewhere.
- Frame machine and structural measuring when a collision may have moved more than a tie rod.
- 90-day warranty on all work, plus a lifetime paint warranty on insurance repairs.
Signs you need an alignment
- The car drifts or pulls to one side on a straight, flat road.
- The steering wheel is off-centre when you’re driving straight.
- Tires wear on the inner or outer edges, or show a feathered pattern.
- Steering feels loose, wanders, or doesn’t return to centre.
- You’ve hit a pothole or curb hard, or had any collision.
- You’ve replaced tie rods, struts, control arms or other steering and suspension parts.
Camber, caster and toe, explained
Camber
Camber is the inward or outward tilt of the top of the tire, viewed from the front. Too much either way wears one edge of the tread.
Caster
Caster is the forward or backward tilt of the steering axis, viewed from the side. It affects straight-line stability and how the wheel returns to centre. Uneven caster side to side can make a car pull.
Toe
Toe is whether the front edges of the tires point toward or away from each other, viewed from above. Toe is the biggest cause of fast tire wear, and it’s the setting most easily knocked out by a pothole.
Two-wheel vs. four-wheel alignment
A two-wheel (front-end) alignment adjusts only the front. Most modern cars, including nearly all AWD vehicles and anything with independent rear suspension, need a four-wheel alignment. Even when the rear isn’t adjustable, we measure it so the front is aligned to the actual direction the rear wheels push the car (the thrust angle). Otherwise the steering wheel can sit crooked even after an “alignment.”
Alignment, steering angle and ADAS calibration
Many vehicles use a steering angle sensor for stability control and lane-keeping. After an alignment, that sensor often needs a reset, and forward cameras or radar may need calibration so the car knows where “straight ahead” is. If they’re skipped, you can get warning lights, a lane-keep system that tugs the wheel, or adaptive cruise that behaves oddly.
We do ADAS camera and radar calibration in-house, from $300. Learn more about ADAS calibration after a collision or windshield replacement and whether your car needs sensor calibration after bumper repair.
After a pothole or collision
A hard pothole hit can bend a tie rod, control arm or rim, and no alignment can fix a bent part. We inspect first and replace damaged parts before aligning. Our pothole damage inspection guide covers what to look for.
After a collision, alignment readings that won’t come into spec can point to a bent subframe or shifted mounting points. We check those on our frame machine. Read can a collision affect wheel alignment or suspension? If it’s an insurance claim, we include the alignment and calibration in the estimate and bill your insurer directly.



What affects the cost
Two- or four-wheel alignment, seized adjusters, damaged parts, and steering-sensor reset or ADAS calibration all affect the total. Call 905-886-2737 for current pricing.
Areas we serve
We align vehicles for Thornlea, German Mills, Royal Orchard, Bayview Glen, Grandview, Doncrest, Thornhill Woods and Langstaff, plus Richmond Hill, Vaughan and North York. See also suspension repair and tires and brakes.
Wheel alignment FAQs
How often should I get a wheel alignment?
Have it checked about once a year, whenever you buy new tires, and any time you notice pulling, an off-centre steering wheel or uneven tire wear. In the GTA, a hard pothole hit in late winter is one of the most common reasons alignments go out, so a spring check is a good habit.
Do I need a two-wheel or four-wheel alignment?
Most modern vehicles need a four-wheel alignment, especially AWD vehicles and anything with independent rear suspension. Even when the rear isn’t adjustable, measuring it lets us align the front to the true thrust angle, so the steering wheel sits straight. We’ll confirm the right alignment for your vehicle before we start.
Does my car need ADAS calibration after an alignment?
Often, yes. Many vehicles need a steering angle sensor reset after an alignment, and some forward cameras or radar need calibration so lane-keep and adaptive cruise work correctly. We check your manufacturer’s requirements and do ADAS calibration in-house, from $300, so the car doesn’t go to another shop.
Can a pothole knock my alignment out?
Yes. A hard pothole or curb hit can change toe settings or bend a tie rod, control arm or rim. If the car pulls or the steering wheel is crooked afterwards, get it checked. We inspect for bent parts first, because aligning a vehicle with damaged parts won’t hold and will keep wearing tires.
Why won’t my car align properly after an accident?
If settings can’t be brought into spec, a suspension part, subframe or mounting point may be bent or shifted. We inspect steering and suspension parts and can measure the structure on our frame machine. Once the damaged parts are repaired, the alignment can be set correctly and included in the insurance estimate.
Will an alignment fix uneven tire wear?
An alignment stops further uneven wear, but it can’t restore tread that’s already gone. Badly worn tires may still be noisy or pull after an alignment. We’ll measure your tread and tell you honestly whether the tires can stay or should be replaced alongside the alignment.
Book a wheel alignment in Thornhill
Open Monday to Friday, 9 am to 6 pm, at 47 Guardsman Rd, Unit 2.










