Business Details
Your Trusted Colorado Auto Repair Experts
Keller's Professional Auto & Diesel has been an industry leader since our inception, driven by our commitment to understanding our customers' needs. We offer an unmatched 5-year/50,000-mile 100% replacement warranty covering parts and labor, a testament to our confidence in service quality. With 50 years of combined experience, our family-owned business prioritizes honest auto care, evidenced by our top-rated staff and dedication to transparency. We provide local shuttle services, military and senior discounts, and personalized communication throughout every repair process. Our Aurora and Centennial locations serve Colorado drivers seeking reliable maintenance and repair solutions.Customer satisfaction is our priority, reflected in our SureCritic-reviewed performance and 100% satisfaction guarantee. Our comprehensive services range from oil changes to complete engine replacements, performed by certified technicians using advanced diagnostics. We maintain clean, professional facilities while offering convenient amenities like complimentary coffee. Our reputation as Colorado's trusted auto care provider stems from decades of consistent service excellence. By focusing on long-term customer relationships over transactional interactions, we've built a legacy of automotive service integrity rare in today's market.
Services
Oil Change
Tire Rotation
Brake Replacement
Engine Repair
A/C Service
Transmission Flush
Suspension Work
Exhaust Systems
Scheduled Maintenance
Diagnostic Testing
Highlights and features
- 50 years combined experience in automotive repair
- Family-owned and operated since establishment
- Military and senior citizen discount programs
- Complimentary local shuttle service available
- Top-rated, transparent service with no hidden fees
What people say
Excellent mechanics
Clean facilities
Honest auto care
Top-rated staff
Delicious coffee
Services
Auto Repair
Our comprehensive auto repair services address all mechanical needs from minor fixes to major component replacements. Certified technicians use advanced diagnostic tools to identify issues with precision. We specialize in both domestic and import vehicles, ensuring proper functionality of braking systems, exhaust components, and engine performance. Every repair includes thorough quality checks and comes with our 5-year/50,000-mile warranty covering parts and labor. Our facility handles everything from check engine light diagnostics to complete transmission replacements with guaranteed customer satisfaction.
Scheduled Maintenance
We follow manufacturer-recommended maintenance schedules to keep vehicles operating at peak efficiency. Services include oil and filter changes, fluid exchanges, timing belt replacements, and 30/60/90 thousand mile checkups. Our technicians document all maintenance work for warranty compliance and future reference. Regular service intervals help prevent unexpected breakdowns while maintaining resale value. We provide reminders for upcoming services and explain each recommended maintenance item in plain language to ensure informed decision-making for vehicle longevity.
Brake Replacement
Our brake specialists perform complete system inspections and repairs for all vehicle types. Services range from pad and shoe replacement to rotor resurfacing and ABS diagnostics. We use premium components meeting or exceeding OEM specifications. Every brake job includes a free complete system inspection and post-service test drive. Our technicians explain wear patterns and recommend appropriate service intervals based on driving habits. The 5-year warranty covers both parts and labor for complete peace of mind.
A/C Service
We restore optimal cooling performance through comprehensive A/C system diagnostics and repairs. Services include refrigerant recharge, compressor testing, and heater control calibration. Our equipment identifies leaks and pressure issues affecting system efficiency. Technicians service both traditional and climate-controlled systems with proper refrigerant handling procedures. We guarantee restored cooling capacity for summer driving comfort, backed by our standard 5-year warranty covering all A/C repairs and component replacements.
Engine Repair
Our engine specialists handle complex repairs from gasket replacements to complete engine swaps. Services include timing belt changes, cylinder head repairs, and oil leak diagnostics. We use specialized tools for proper component alignment and torque specifications. Every engine repair includes computer diagnostics and post-repair performance testing. Technicians explain failure causes and recommend preventive measures. All work comes with our industry-leading warranty covering both parts and labor for complete customer protection.
Questions
What makes Keller's warranty better than competitors?
Our 5-year/50,000-mile 100% replacement warranty covers both parts and labor with no exclusions, unlike competitors' limited coverage. We've successfully honored every claim since inception.
Do you service both gasoline and diesel vehicles?
Yes, our technicians specialize in both engine types with dedicated diagnostic equipment for modern diesel performance tuning and emissions compliance.
Are military and senior discounts available?
We offer exclusive discount programs for active military personnel and senior citizens on all repair and maintenance services.
Do you provide loaner vehicles?
While we don't have loaner cars, we offer complimentary local shuttle service within a 10-mile radius of both locations during regular business hours.
Can I schedule appointments online?
Yes, our website features 24/7 online booking for all services, or you can call our Aurora or Centennial locations directly during business hours.
What payment methods do you accept?
We accept major credit cards, debit cards, cash, and checks with valid ID. Financing options are available for major repair work.
