Black Porsche 911 parked in front of 911 Design building.

Porsche Repair in Montclair, CA

Master-certified Porsche technicians providing diagnostics, maintenance, performance upgrades, and restoration for modern and classic Porsche models.

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Porsche 911 air-cooled engine with visible components in a red engine bay.

Porsche Repair in Montclair, CA

Master-certified Porsche technicians providing diagnostics, maintenance, performance upgrades, and restoration for modern and classic Porsche models.

SCHEDULE YOUR SERVICE
Interior of a red Porsche 911 race car with black bucket seats and red seat belt harness.

Porsche Repair in Montclair, CA

Master-certified Porsche technicians providing diagnostics, maintenance, performance upgrades, and restoration for modern and classic Porsche models.

SCHEDULE YOUR SERVICE
Two Porsche 911 GT3 race cars on a track with one prominently featuring the 911 Design logos.

Porsche Repair in Montclair, CA

Master-certified Porsche technicians providing diagnostics, maintenance, performance upgrades, and restoration for modern and classic Porsche models.

SCHEDULE YOUR SERVICE
Customer waiting area inside 911 Design lobby with two classic Porsche 911 parked next to couches.

Porsche Repair in Montclair, CA

Master-certified Porsche technicians providing diagnostics, maintenance, performance upgrades, and restoration for modern and classic Porsche models.

SCHEDULE YOUR SERVICE

Factory-Trained Porsche Technicians / OEM Parts & Diagnostics / Serving Southern California Porsche Owners For Over 25 Years

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911 DESIGN

Expert Porsche Repair and Service for Every Model

Our Montclair Porsche Repair Facility services Porsche cars from 1948 to today's current models. Comprising of Porsche Restoration, Porsche Collision, Porsche Repair, Porsche Annual Servicing, Porsche Engine & Gearbox, Porsche Procurement, Porsche Expert Witness Services, and Porsche Motorsport services.

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Abstract white and gray geometric design pattern.
Blue Porsche 911 with orange mesh wheels parked in front of a building.

Porsche Repair

Complete Porsche Auto Repair including brakes, oil & fluid changes and more...
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Porsche 911 with body panels removed on a lift in a workshop with a welder technician working on it.

Porsche Auto Body

Collision Repair, Dent Removal, Customized paint and body modification...
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Open engine bay of a heavily modified Porsche 911 air-cooled engine with aftermarket intake and piping.

Performance Upgrades

Performance aftermarket parts specifically curated to elevate the driving experience of your Porsche...
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911 Design Store

Shop Porsche Performance
Parts Selected By Our Porsche Specialists

Performance Intake/Header/Exhaust Systems
Suspension & Chassis Components
Drivetrain Upgrades
Seats & Steering Wheel Upgrades
Street/Track/Off-Road Wheels & Accessories

BROWSE STORE

Featured Products

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OUR SERVICES

Why Porsche Owners Choose 911 Design Over the Dealership

THE 911 DIFFERENCE

Our team of master-certified technicians brings the expertise and passion needed to ensure your Porsche receives nothing short of outstanding care. From seamless scheduling to the use of genuine manufacturer parts, we spare no effort in delivering an exceptional maintenance experience. With our freeway-accessible location and a curated online store offering high-performance Porsche parts and upgrades, getting the right service and components for your vehicle has never been more convenient.

At its core, 911 Design is more than a repair facility. It is a Porsche-focused service center committed to both exceptional workmanship and thoughtful customer care. Whether you are visiting us for expert maintenance or sourcing performance upgrades through our online store, our goal is to provide a clear, convenient, and truly rewarding Porsche ownership experience.
911 Design logo with text that says "Racing and Street Car Specialty" on white background.

TESTIMONIALS

What Our Porsche Customers Say

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  • "After having an accident with my Porsche Boxster Loren was very helpful in working with the insurance and helping me in the claim process."


    Mark Nelson

  • "I'll be bringing my car here for all future services. The wait time and cost of labor and parts at a Porsche dealership are outrageous, so I'll trust my car with 911 Design."

    Mario G.

  • "911 Design are total professionals. I doubt there is another shop in the 50 mile radius that understands both new and old Porsches better than them."

    Mark Palmer

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