Request an Appointment

Comments/Questions:

Welcome to Allegiance Automotive

Taking Care of you and your vehicle with courtesy and commitment. At Allegiance Automotive, we love cars & trucks, and spend every day repairing and maintaining vehicles in our Boulder, Colorado location. We believe in full service car care and superior customer service.

Factory Maintenance

The key to vehicle health and car owner happiness, our experts provide the full spectrum of factory maintenance.

Diesel Expertise

Let our genuine diesel experts repair your Powerstoke, Cummins, Duramax or any other engine without spark plugs.

Ford Specialists

Ford specialists who gladly repair all makes and models

Performance

Blowers, Cams, nitromethane, 4 link suspension, tubbed rear ends and all other things streetrod.

OUR EXPERT TEAM

Providing Quality Service and Repair for Your Vehicle

Bob

Bob

Owner


Sharleen

Sharleen

Office Admin


Marcin

Marcin

Technician


Bret

Brett

Technician


Common Services

We service all your automotive repair and maintenance needs. From your family or sports car, trucks, and classics, Allegiance Automotive has the ability to service most vehicles, including gas and diesel engines.

Cant be happier with my experience. We bought a used school bus to convert into a tiny home and Allegiance took it in and made sure it was worth building out as well as some routine maintenance that had not been done in years. She drives great now, thanks, Allegiance!  6/14/17

Buck H.

Solid shop. I had been working with another local shop and wasn’t pleased with the service and these guys blew me away. They’re genuine, kind, straight-forward, and they display excellence in their work ethic. I’m a fan!

Sarah G

Sarah G

These guys are great! I recommend going to Allegiance Automotive over ANY other shop! They took every opportunity to ensure I was satisfied, kept informed, and inquired where they could do better. Don’t waste your time anywhere else! I was returning to Boulder on a 1300 mile road trip over the holidays, and my truck broke down just as I was passing Denver. The whole situation seemed bleak. It was New Years eve, I had significant plans the next day,…

Read More

Nathan L

Nathan L

These guys are great! I was returning to Boulder on a 1300 mile road trip over the holidays, and my truck broke down just as I was passing Denver. The whole situation seemed bleak. It was New Years eve, I had significant plans the next day, and I was stuck with very little options. I contacted Allegiance Automotive and spoke with the manager Jim. He recommended a great towing company that really worked with me to get my truck to…

Read More

Nate L

Nate L

​My husband and I purchased a salvaged vehicle last year, we knew there might be some issues so we also purchased a warranty. However, when the car started giving us problems we really didn’t know who to turn to. Luckily we were paired with Bob and his team at Allegiance Automotive through a referral and we are so thankful! We brought our car in for them to look at, they did a very comprehensive review of the car and found…

Read More

Mara S.

Mara S

I have been a loyal customer of Allegiance Automotive for years. I always receive excellent customer service and car repairs. The staff on more than one occasion has been able to accommodate me with emergency repairs. I would rate this auto repair shop 5 stars.

Robin M.

User Image

Simply put…these guys are the best. They have given me excellent service for the past 8 years. They are consistent and most importantly honest. Bob and his team are top notch. Boulder is lucky to have them.

Derek-C

Derek C

I thought working with Bob & Caitlyn at Allegiance Automotive was great. They did a great job answering every single one of my questions in fine detail. I thought the prices were fair and they were always very responsive. They fixed my car as concisely as possible and they guarantee their work for a year.

Awesome, trustworthy place to take your car. I would recommend them to all of my Boulder friends.

Adnan Y.

User Image

Service was prompt and professional. I’ve taken my vehicle there twice now and I am very happy with the quality of work done.

Vit S

Vit S

These guys are great to work with. They were able to diagnosis and fix a very tricky issue I was having with my brakes and ended up not charging me for the extra expenses it took to figure out what was going on. I’ll trust these guys with all my future repairs. They are a small independent shop so they can get backed up with work but they really know what they’re doing and they value your business. I can’t…

Read More

Ron S.

User Image

Bob Ralph and his team at Allegiance Automotive in Boulder have given me the best service I’ve ever had in my 50 years of owning cars. Bob is a knowledgeable and hands-on owner. His wife Charlene often is there to talk and work with customers. His team does great work at a very reasonable price. I’ve have always gotten good recommendations on the work I needed done and the estimates were right on the money. Most of all, I have…

Read More

Dave J

Dave J

I own a construction company; as a result, I have a small fleet of neglected trucks. Since switching to Allegiance Automotive my maintenance costs have gone down and my down-time due to service has gone down. They are efficient, trustworthy, and good. I recommend them to anyone.

Brady V.

User Image

From the Blog

Clean Your Vehicle Windshield and Windows

How to Properly Clean Your Vehicle Windshield and Windows?

When you are driving your car, visibility is significant, avoiding unexpected objects on the street that could cause an accident. For this reason, it is essential to keep your vehicle windshield and windows clean, so you can be safe while you drive. But, if you don´t clean your vehicle windshield and windows the right way, you […]

Read More

Vehicle Maintenance and Repair Shop in Boulder

Cleaning Your Foggy Vehicle Headlights

When it comes to driving at night, having your headlights in optimal condition is highly essential for preventing an accident and keeping you safe. Also, it will allow other drivers to see your car. Clean Your Foggy Headlights and Improve Your Visibility Here are 3 simple steps to quickly clean your car foggy headlights: Cleaning […]

Read More

Removing Dog Hair from Your Vehicle

Tips for Removing Dog Hair from Your Vehicle

For many families in the United States, dogs are an important part of their family and taking their furry fellow for a ride or to a family activity during the weekend is a must.  But, no matter how hard you try your dog will always leave hair on your car interior, so today we want […]

Read More

Request an Appointment

Call 303-938-9454 or fill the form below






Comments/Questions: