About Us
There’s a good chance that if you’ve spent enough time around Renton, Shoreline, and Seattle, Washington, you’ve seen the Brotherton name somewhere along the way. Maybe it was connected to a vehicle, a community event, a local cause, or one of the many people who have been part of this family business over the years.
Founded by Frank Brotherton in Walla Walla, Washington, back in 1916, Brotherton Automotive has grown across more than a century while staying true to its heritage. Today, it stands as a proud fifth-generation, family-owned business deeply woven into the fabric of Washington State.
Brad Brotherton leads the business while staying closely involved with the communities we call home, and the next generation of the family is already working alongside our employees. So, come on in and get to know us a little better.
Explore Our Fantastic Cadillac, Buick, and GMC Vehicles
Across our different locations, you can explore different types of vehicles and inventories, giving you plenty of ways to find something that feels right for you. Through our dealerships you can find:
Maybe you’ve had your eye on a Cadillac Escalade, or perhaps you’re curious about a Buick Enclave or ready to take a closer look at a GMC Sierra. Whatever has caught your attention, our online experience makes it simple to move between inventories and browse in an organized way without having to jump around from one place to another.
And if you already know what you want, you can take things a step further with a Custom Order. That gives you the opportunity to explore your preferences and create a vehicle around the features that matter to you.
Find Support from Our Finance Center
The people behind the finance desk are an important part of the Brotherton experience. They’re here to actually talk with you, listen to what you’re trying to accomplish, and explain your options in language that makes sense.
If you’re interested in financing, leasing, current incentives, or special offers, the team can help you look through what’s available and find an approach that fits your plans. Get pre-approved today!
Get Expert Service for Your Vehicle
Because your automobile has its own distinct personality and maintenance requirements, our service specialists treat it with individual care. Whether you drive a Buick, GMC, or Cadillac, our technicians possess deep expertise across every model line, including advanced EV architecture.
When maintenance is required, you can count on local professionals who know your vehicle inside and out. We offer:
- Regular maintenance
- Available Premium Pickup and Delivery
- Available car wash option
And backed by authentic GM Genuine Parts and ACDelco products, our team delivers total peace of mind for routine maintenance and complex repairs alike. Explore our service locations!
Rooted in Washington Communities
For us, being a Washington business has never meant simply putting a name on a building and calling it a day. Our family and employees live here, raise families here, support local organizations, and show up for causes that matter to the people around us.
Giving back to our Pacific Northwest roots is central to who we are. Our community involvement spans partnerships with the Seattle Seawolves rugby club and Renton River Days, alongside supporting youth mental health initiatives through Swing for Hope.
Our connection to Fred Hutch Cancer Center and the Celebrity Steak-Out remains particularly close to our hearts, helping generate $1.1 million for cancer research and patient care during the 2026 benefit.
And along with our strong affection for Washington State University and the Cougars, these partnerships represent the neighbors, causes, and local bonds that matter most to us.
Contact Brotherton Automotive
Throughout every era, our core values have remained constant, fostering genuine relationships among our family, staff, customers, and local communities. Whether you want to browse our Cadillac, Buick, and GMC inventory, discuss financing, or arrange vehicle maintenance, we invite you to contact us.
Brotherton Automotive
215 SW 12th Street, Renton, WA 98057
Contact UsHours
| Monday | 8:30AM - 7:00PM |
| Tuesday | 8:30AM - 7:00PM |
| Wednesday | 8:30AM - 7:00PM |
| Thursday | 8:30AM - 7:00PM |
| Friday | 8:30AM - 7:00PM |
| Saturday | 9:00AM - 6:00PM |
| Sunday | Closed |
| Monday | 7:30AM - 5:30PM |
| Tuesday | 7:30AM - 5:30PM |
| Wednesday | 7:30AM - 5:30PM |
| Thursday | 7:30AM - 5:30PM |
| Friday | 7:30AM - 5:30PM |
| Saturday | Closed |
| Sunday | Closed |
| you break it we fix it | |
| Monday | 7:30AM - 6:00PM |
| Tuesday | 7:30AM - 6:00PM |
| Wednesday | 7:30AM - 6:00PM |
| Thursday | 7:30AM - 6:00PM |
| Friday | 7:30AM - 6:00PM |
| Saturday | 8:00AM - 3:00PM |
| Sunday | 10:00AM - 6:00PM |