GRANT KO INC · Sun Valley, Los Angeles
Sun Valley’s Premier Precision Collision &
Structural Repair Center
Manufacturer-grade repair standards, computerized precision measurement, and seamless California insurance claim advocacy. Backed by our written lifetime warranty.
High-Ticket Precision Services
Damage in.
Like it never happened, out.
From computerized unibody realignment and exotic cleanroom structural repairs to complete mechanical overhauls and certified EV battery safety protocols, GRANT KO INC performs precision collision and structural restorations back to factory OEM tolerances.
Full Collision & Unibody Structural Repair
Computerized 3D laser frame measuring, chassis realignment, and heavy collision reconstruction back to OEM factory tolerances. Complete unibody restoration ensuring crumple-zone performance and passenger safety cell integrity.
Frame Straightening & Chassis Realignment
Hydraulic bench pulling, structural core restoration, and unibody integrity rebuilding. Multi-point computerized anchoring corrects twists, sways, and mash back to millimetric manufacturer benchmarks.
Certified Aluminum & Exotic Vehicle Repair
Dedicated cleanroom structural repair for luxury European and exotic makes (Porsche, BMW, Mercedes-Benz, Ferrari). Specialized rivet bonding, flow-drill screwing, cleanroom anti-galvanic isolation, and structural panel shaping.
EV & Hybrid High-Voltage Collision Repair
Certified Tesla and electric vehicle collision repair, battery enclosure structural inspection, and high-voltage disconnect/reconnect protocols. Thermal cooling loop pressure testing and post-impact diagnostic certification.
Complete Engine Replacement & Major Overhaul
Long-block and short-block crate engine replacements, cylinder head rebuilding, timing systems, and severe mechanical post-collision reconstruction. Precision dyno-testing and complete powertrain synchronization.
Transmission Rebuild & Replacement
Automatic, manual, and dual-clutch transmission rebuilds, torque converter replacement, transfer case repair, and computerized drivetrain diagnostics following impact or heavy drive-line collision stress.
Complete Vehicle Repaint & OEM Color Matching
Down-draft heated spray booth applications, multi-stage finishes (tri-coat/pearl), computerized spectrophotometer color matching, and full clear coat restoration baked to factory showroom durability and UV resistance.
ADAS Calibration & Diagnostic Scanning
Pre- and post-repair diagnostic scanning, front radar, LiDAR, blind-spot monitor, and lane-departure camera calibration using precision optical target arrays to guarantee autonomous driver assistance safety.
Suspension, Steering & Airbag/SRS Restoration
Full front and rear suspension reconstruction, electric steering rack replacement, subframe replacement, and airbag/seatbelt tensioner module deployment reset with complete clockspring and impact sensor replacement.
Dedicated Cleanroom Structural Reconstruction
Precision collision and chassis restoration for exotic and ultra-luxury European marques (Porsche, BMW M-Series, Mercedes-AMG, Audi Sport, and bespoke exotics). Our isolated cleanroom facility prevents galvanic oxidation and utilizes factory OEM laser measuring, cold-joining rivet bonding, and factory-authorized refinishing protocols.
Complete Capability Matrix
Comprehensive Service Catalog
Explore our structured repair divisions engineered to meet direct OEM specifications, California BAR environmental guidelines, and insurer certified repair protocols.
Major Collision & Structural
Tier: Structural- Full Body & Unibody Restoration 3D laser-guided frame pull bench, structural core replacement, B-pillar & quarter panel structural welding.
- Carbon Fiber & Advanced Composites Structural carbon fiber panel repair, vacuum-bagged autoclave-style bonding, and fiberglass body reconstruction.
- Classic Car & High-Value Restoration Complete frame-off chassis rebuilds, custom metal fabrication, rust remediation, and period-correct panel shaping.
Mechanical, Drivetrain & Systems
Tier: Mechanical- Cooling & Radiator Systems Radiator support rebuilding, high-pressure radiator and condenser replacement, water pump & thermostat service.
- A/C System Recharge & Compressor Repair Complete R134a and R1234yf evacuations, leak detection, condenser replacement, and compressor rebuilds.
- Exhaust & Catalytic Converter Replacement High-flow catalytic converter replacements, header & manifold repair, California CARB compliant exhaust restoration.
- Turbocharger & Intercooler Systems Turbo unit rebuilding, intercooler pipe fabrication, boost pressure testing, and oil feed line servicing.
Diagnostics, Brakes & Electrical
Tier: Diagnostics- Pre- & Post-Repair OEM Scanning Deep electronic module scanning, DTC fault clearing, CAN bus communication diagnostics, and health reports.
- ABS & Braking Module Repair Master cylinder rebuilds, ABS actuator replacements, electronic brake caliper programming, and rotor resurfacing.
- Precision 4-Wheel Computerized Alignment High-end 4-wheel computerized alignment (thrust angle, camber, caster, toe) adjusted to exact OEM ride height.
- Wiring Harness Repair & Safety Lighting High-voltage wiring harness repairs, CAN bus terminal rewiring, and adaptive LED/xenon headlight coding.
Cosmetic & Protection Services
Tier: Refinish- Paintless Dent Repair (PDR) Precision metal massage for door dings, creases, and hail damage preserving factory original clear coat.
- Multi-Stage Paint Correction 3-stage rotary and orbital compound polishing to eliminate swirl marks, orange peel, and clear coat marring.
- Nano-Ceramic Coating & PPF 9H professional ceramic coatings and high-impact self-healing polyurethane Paint Protection Film (PPF).
- Wheel Refinishing & Trueing Curb rash repair, CNC diamond-cut wheel machining, custom powder coating, and wheel radial runout straightening.
The Standards
Why Choose GRANT KO INC
We don't cut corners to satisfy insurance claim minimums. Every vehicle entering our facility is restored to factory tolerances with uncompromising structural and safety benchmarks.
Precision 3D Laser Measuring
Computerized chassis bench measuring guarantees frame and unibody realignment back to exact OEM millimetric specifications.
Heated Down-Draft Spray Booths
Spectrophotometer digital color matching, multi-stage finishes, and high-temperature baked clear coats matching factory showroom depth.
Complete Insurance Claim Advocacy
We negotiate directly with insurance field adjusters, uncover hidden structural damage, and mandate OEM replacement parts.
Lifetime Workmanship Warranty
All structural welds, panel alignments, and paint finishes carry a 100% written lifetime warranty for as long as you own your vehicle.
Free Tow-In & Rental Concierge
Complimentary local flatbed towing for non-drivable vehicles, seamless Enterprise/Hertz handoffs, and 24/7 secure facility intake.
Structural Metallurgy & Safety Engineering
Vehicle Integrity Is Non-Negotiable.
Modern vehicles blend ultra-high-strength steel (UHSS), specialized aluminum alloys, and carbon composites. When impact forces travel through an engineered crumple zone, damage is rarely confined to the bumper cover.
At GRANT KO INC, our technicians utilize electronic computerized 3D measuring systems to verify all 40+ chassis control points before and after structural pulls. We restore the exact metallurgy, laser welds, and passenger cell rigidity engineered by the original vehicle manufacturer.
How It Works
You make one call.
We handle the rest.
Most people walk in stressed. Our job is to take the claim off your plate so you're not the one chasing an adjuster.
Bring it in or call us
Stop by for a free written estimate — no appointment needed. If it isn't safe to drive, call us before you have it towed anywhere.
We open the claim
Give us your claim number and we take it from there: estimate, photos, adjuster, supplements, billed direct to your carrier.
You get your car back
Repaired, re-aligned, refinished and detailed. We keep you posted the whole way so you know exactly when it's ready.
Verified Client Experiences
What Southern California Drivers Say
Trusted by luxury, electric, and performance vehicle owners across Sun Valley, Glendale, Burbank, and the Greater Los Angeles area.
★★★★★
"After a severe collision on the 101 freeway crumpled the rear quarter panel and bent the suspension of my 2024 BMW M4 Competition, I was worried the car would never drive the same. GRANT KO INC took over everything. They fought Geico to use only genuine BMW OEM parts, put the chassis on their 3D laser measuring bench, and the Isle of Man Green metallic paint match was 100% factory perfect. True master craftsmen."
★★★★★
"My Tesla Model Y was rear-ended in Glendale, damaging the liftgate, aluminum bumper reinforcement, and radar sensors. Most shops won't touch high-voltage EV structural repairs. GRANT KO INC followed full Tesla high-voltage disconnect procedures, repaired the aluminum unibody, and completed the ADAS camera recalibration in-house. Car drives factory-perfect with zero panel gap misalignment."
★★★★★
"State Farm originally tried to write an estimate using reconditioned aftermarket parts and missed internal frame rail distortion. The team at GRANT KO INC tore down the front end, documented all the hidden damage with 3D scans, and negotiated a supplemental claim for complete brand-new OEM structural components. They saved me thousands of dollars and ensured my family's vehicle was structurally safe again."
★★★★★
"Brought in my 1969 Camaro for complete bodywork restoration, metal fabrication, and a full multi-stage paint job. The precision and attention to detail at GRANT KO INC is second to none in Southern California. The body lines are razor sharp and the clear coat has incredible mirror depth. You can immediately tell these guys are passionate about what they do."
Your Rights Under California Law
It's your vehicle.
It's your choice
of repair facility.
Under California Insurance Code § 758.5 (the Anti-Steering Act), insurance adjusters cannot require or intimidate you into utilizing their "preferred" or direct-repair program (DRP) shops.
DRP shops often enter contract agreements prioritizing insurer cost-reduction over factory repair procedures. GRANT KO INC remains an independent, client-first collision center that negotiates directly with adjusters to secure genuine OEM parts and complete structural supplements.
- Direct Carrier Billing: We communicate directly with State Farm, Geico, AAA, Progressive, Allstate, Farmers, Mercury, and all California carriers.
- OEM Parts Defense: We reject compromised aftermarket imitation parts that degrade vehicle equity, safety, and crash sensor alignment.
- Comprehensive Supplements: Detailed photographic and 3D frame documentation submitted directly to carriers to authorize full hidden repairs.
- Deductible Assistance: Transparent claim review and deductible assistance options to minimize unexpected out-of-pocket costs.
Consumer Rights & Collision FAQ
Frequently Asked Questions
Clear, honest answers about California insurance claims, repair procedures, and your legal rights.
Can my insurance company force me to use their "preferred" or direct-repair shop?
No. Under California Insurance Code § 758.5, you have the absolute legal right to choose any licensed collision repair facility. Insurance companies often recommend contract shops that agree to discount repair procedures. At GRANT KO INC, we work for you—not the insurance company.
Will my vehicle be repaired with genuine OEM parts or cheap aftermarket parts?
GRANT KO INC strongly advocates for Original Equipment Manufacturer (OEM) parts. We inspect all insurance estimates and push back aggressively against insurers attempting to force non-certified, poorly fitting aftermarket or salvaged components onto your vehicle.
How does deductible assistance work?
Depending on the extent of collision damage and your insurance coverage terms, we offer structured deductible assistance programs to help minimize or eliminate your out-of-pocket expenses. Contact our claims department at (424) 249-5862 to review your policy details.
Do you arrange rental cars while my vehicle is being repaired?
Yes. If your policy includes rental car reimbursement, we coordinate direct vehicle drop-off and pickup with Enterprise and Hertz right at our facility. If you do not have rental coverage, we offer discounted corporate loaner rates.
Why does my modern vehicle require ADAS sensor and radar recalibration?
Advanced Driver Assistance Systems (ADAS)—such as autonomous emergency braking, adaptive cruise control, blind-spot monitoring, and lane-keep assist—rely on millimeter-wave radar and optical cameras mounted behind bumpers and windshields. Following a collision or panel removal, these sensors must be optically recalibrated to factory tolerances to prevent false emergency braking or system failures.
Are you certified for Tesla and Electric Vehicle (EV) repairs?
Yes. We strictly adhere to manufacturer high-voltage safety disconnect protocols, battery enclosure structural integrity inspections, and dedicated aluminum welding techniques required for electric vehicles.
What if the insurance adjuster's initial estimate is too low or missed damage?
Adjusters typically perform quick initial visual estimates that miss internal structural distortion, unibody misalignment, and damaged suspension geometry. Once your vehicle is at GRANT KO INC, we complete a full mechanical teardown, document hidden damage with computerized 3D laser measuring, and submit itemized supplemental claims directly to your insurer for full approval.
What warranty do you provide on collision repairs and paint?
We provide a comprehensive 100% written Lifetime Workmanship Warranty on all structural repairs, metal fabrication, unibody alignment, and paint refinishing for as long as you own the vehicle.
Direct Claim Assistance
Schedule Your Free Damage Assessment.
Have an active insurance claim or need a private damage consultation? Bring your vehicle or claim number to our Sun Valley repair center.
Our senior estimators provide complete computerized assessments, guide you through California insurance rights, and coordinate immediate towing and rental car handoffs.
Need Immediate Assistance?
Call Our Claim Specialists: (424) 249-5862Request Damage Assessment
Submit your contact and collision information below for immediate priority scheduling.