Dealer Of the Year
PHONE: (720)279-1981
SERVICE: (720)279-1981
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Specials

  • All Buick Vehicles
    Includes 2 Yr Free Maintenance*
    All Buick Vehicles
    *Disclosure Covers only scheduled oil changes with filter and tire rotations according to you new vehicles recommended maintenance schedule for up to 2 years or 24,000 miles. whichever comes first. Does not include air filters, Maximum of four service events. See Dealer for complete details View Inventory
  • All Cadillac Vehicles
    Includes 4 Yr Free Maintenance*
    All Cadillac Vehicles
    *Disclosure Covers only scheduled oil changes with filter and tire rotations according to you new vehicles recommended maintenance schedule for up to 2 years or 50,000 miles. whichever comes first. Does not include air filters, Maximum of four service events. See Dealer for complete details View Inventory
  • All GMC Vehicles
    Includes 2 Yr Free Maintenance*
    All GMC Vehicles
    *Disclosure Covers only scheduled oil changes with filter and tire rotations according to you new vehicles recommended maintenance schedule for up to 2 years or 24,000 miles. whichever comes first. Does not include air filters, Maximum of four service events. See Dealer for complete details View Inventory

Customer reviews

4.8 / 5

Dealer Rating

Our average rating from our customers is

4.8 / 5

Read Reviews

  • CTS Coupe Customer reviews

    The entire service experience was a very pleasant one, from my reception at the service desk to the work performed. The service technician did a great job and treated my car with the utmost respect.T

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    2012 Cadillac CTS Coupe
  • Silverado 1500 Customer reviews

    Were upfront on how long service would take and then got done a little sooner! Nice! Also, washed car for free! Easy!

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  • SRX Customer reviews

    Slight issue this time. Ordered part at oil change and after waiting 15 days had to call back to check on it. Apparently part had been delivered to dealer within days, but they forgot to call and let

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    2013 Cadillac SRX
  • LaCrosse Customer reviews

    I have been a customer at McCaddon for many many tears. The service has always been excellent. I particularly wish to commend Chris Cook. He is exceptional.

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    2008 Buick LaCrosse
  • Acadia Customer reviews

    On Tuesday we discovered our 2013 GMC Acadia had an A/C that was not working to the expected performance in maintaining a cool environment. Since the car as scheduled to leave on a vacation journey,

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    2013 GMC Acadia
  • LaCrosse Customer reviews

    The only bias I had with it was the fact that all your loaners were out, therefore I had to rent an auto at the cost of $116 for 2 days to assure we had transportation in case of need because my husba

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    2005 Buick LaCrosse
  • LaCrosse Customer reviews

    factory scheduled maintenance

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    2010 Buick LaCrosse
  • XTS Customer reviews

    I brought in my 20013 XTS Cadillac for servicing and tire rotation. The staff in service were most kind and timely. The next time will be for 30,000 miles. Thi

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    2013 Cadillac XTS
  • Ion Customer reviews

    Brought my 2007 Saturn Ion in for an oil change and a part replacement. Service done as promised within one hour.

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  • VUE Customer reviews

    I brought in my Saturn Vue '05 to check on a rattling sound. Techs were able to diagnose and repair it without cost. Jeff was very friendly, and easy to work with. He has good skills in explaining

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Map and Directions

Service Specials

  • Everyday Value Price*
    5-Quart Oil Change, 4-Tire Rotation & Multi-Point Vehicle Inspection
    $39 07 Conventional* $39 95 dexos1*
    *Disclosure Tire balancing, tax, and more than 5 quarts of oil extra. Most V-6 and V-8 engines and other select vehicles require more than 5 quarts of oil. See dealer for eligible vehicles and details. Offer valid through 12/31/15. Expires expires on 12/31/2015 View Details
  • Brake Pads Installed*
    ACDelco Professional DuraStop
    $99 95 per axle*
    *Disclosure Turning or replacing rotors, all other services, and tax extra. Excludes Corvette and other select vehicles. Retail customers only. See dealer for eligible vehicles and details. Warranty to the original retail purchaser. See dealer for details. Offer valid through 12/31/15. Expires expires on 12/31/2015 View Details
  • 30-Day Tire Price Guarantee*
    *Disclosure Ad, written estimate, or Internet quote for identical tire(s) from a competing tire retailer/installer located within 100 miles of the dealer required during guarantee period for price match. Offer valid through 12/31/15. Expires expires on 12/31/2015 View Details

McCaddon Cadillac Buick GMC - Serving Boulder & Denver Cadillac, Buick & GMC Customers Since 1958!

Get only the finest new and used cars from the best Boulder Buick, GMC and Cadillac dealership near Denver and Longmont! Come see our new inventory of Cadillac, GMC, and Buick models, plus our large inventory of certified pre-owned vehicles. We're your family owned and operated Boulder Cadillac, Buick, and GMC dealership, located at 48th and Pearl Parkway near Denver.

Used Cadillac Dealer - Near Longmont and Denver

Get only the best pre-owned cars in Colorado, from the most reputable used car dealer. Our selection of certified pre-owned cars and trucks are vigorously inspected, detailed, and thoroughly reconditioned. You'll find a great selection of Boulder, Denver and Longmont used cars right here at McCaddon.

Our excellent track record is proven daily. We serve Longmont and Denver Cadillac, Buick, and GMC customers with the most professional and friendly sales and service staff. Our customers are treated with the utmost integrity, honesty, and professionalism. We have been an integral part of the Boulder community since 1958!

Get in touch with one of the knowledgeable certified sales consultants at our Boulder Buick, GMC and Cadillac dealership. See how we can make the difference! Add us to your shopping list and let us do the work for you!

GM Auto Service in Boulder - Serving Denver and Longmont GMC, Cadillac, and Buick Drivers

McCaddon has been serving Boulder County, Denver and Longmont GMC, Cadillac, and Buick drivers since 1958. Our certified service center offers a great value on Boulder Cadillac, Buick, and GMC service with competitively priced service offerings. Our ASE certified, GM-trained technicians and genuine GM parts are just a few of the many reasons to bring your Denver Cadillac, GMC or Buick vehicle into McCaddon for service. Our service staff will amaze!

Nearby Denver Area Cadillac Dealer in Boulder, CO

We are your Denver area Cadillac dealer alternative with top notch staff, inventory, and facilities. Come see the all-new Cadillac CTS, XTS, ATS, SRX, and Escalade! Denver Cadillac customers, see how Cadillac Cue can help you be connected. We look forward to giving you the world class experience you deserve here in Boulder near Denver and Longmont!

Boulder Buick Dealer Serving Denver and Longmont

McCaddon Cadillac Buick GMC of Boulder is proud to serve as your Denver and Longmont Buick luxury vehicle dealership. We carry the complete line of world-class Buick vehicles. We invite you to test drive a new Denver Buick Enclave, Regal or LaCrosse. We're also pleased to present the all-new Verano, available for Longmont and Denver Buick enthusiasts to test drive. Please request a quick quote for more information on these renowned cars.

Longmont & Denver GMC Source in Boulder

McCaddon GMC also carries a great selection of new and used GMC SUVs and trucks. We maintain a great inventory of Sierra pickups for Longmont GMC drivers to choose from, as well as Acadia and Yukon SUVs. Please browse our complete inventory to view our extensive collection of vehicles, or visit us here in Boulder for a great Denver and Longmont area GMC Yukon dealership alternative! We carry the Acadia Denali and supply Denver GMC Terrain Denali models from Boulder.



Service | Parts Order Form | GM Accessories

Buick: Enclave | Encore | LaCrosse | Regal | Verano
Cadillac: ATS | ATS Coupe | CTS Sedan | Escalade | SRX | XTS
GMC: Acadia | Canyon | Savana Cargo Van | Savana Passenger Van | Sierra 1500 | Sierra 2500HD | Sierra 3500HD | Terrain | Yukon