Dettmer Automotive Inc
4.8/ 90 reviews (303) 781-2881
Estimate first
Dettmer Automotive · Work Order
4.8 stars · 90 Google reviews

Honest auto repair in Littleton — we tell you before we fix it.

Full-service repair for daily drivers and the classics other shops won't touch. A free, honest estimate first — you approve the price before a wrench turns.

(303) 781-2881

Mon–Fri 8–6 · 5021 S Rio Grande St # B, Littleton

4.8 stars across 90 Google reviews We explain the problem before we fix it Honest estimates — no invented problems Trusted with classics and daily drivers alike
A mechanic's hands resting a torque wrench beside an open hood
We explain first

"We tell you what's going on before we touch anything."

Job 02 · How a visit works Inspect → approve → fix

No step happens without you

The whole reason people trust us with everything from a commuter to a beloved old pickup: you're never surprised by the bill, because you approved it first.

  1. 01

    We inspect

    We track down the real cause instead of guessing — the noise, the light, the leak, whatever brought you in.

  2. 02

    We explain

    You hear what we found in plain English: what's actually wrong, and what can safely wait.

  3. 03

    You approve the price Approved

    You get an honest estimate before anything starts. Nothing gets touched until you say go.

  4. 04

    We fix it right

    The repair is done properly the first time — no invented problems, no upsell.

  5. 05

    We stand behind it

    You drive off knowing the work is solid and the shop is a phone call away.

Job 03 · Diagnostic checklist Notice any of these?

If your car is doing one of these, bring it in

Here's what these common symptoms usually mean — so you walk in already knowing roughly what we'll be looking at.

  • Grinding or squealing brakes

    Usually pads worn down toward the metal — worth a look before it reaches the rotors.

  • Check-engine light is on

    The car is flagging something. Could be minor, could be not — a scan tells us which.

  • Shaking or vibration at speed

    Often tires, wheel balance, or a worn suspension or driveline part.

  • A burning or sweet smell

    Can mean overheating, an oil leak, or coolant — the kind of thing you don't want to wait on.

  • Hard or slow starts

    Frequently a battery, starter, or charging-system issue we can test quickly.

  • A puddle under the car

    The color tells the story — oil, coolant, or transmission fluid each point somewhere different.

Not sure what's wrong? That's fine.

Call and we'll take a look and tell you straight — no pressure, no invented problems.

(303) 781-2881
A tidy mechanic's workbench with an inspection sheet and torque wrench Pride in the work
Job 04 · About the shop Littleton, CO

Built the slow, honest way

Dettmer Automotive earned its reputation one fixed car and one straight conversation at a time. Drivers keep coming back — and sending friends and family — because the shop explains the problem in plain English, quotes the work before starting, and stands behind what it does.

It's the kind of place people trust with everything from a daily commuter to a beloved older pickup that most modern shops won't touch. Around here, taking pride in the work isn't a slogan — it's why the phone keeps ringing.

  • 4.8 stars across 90 Google reviews
  • We explain the problem before we fix it
  • Honest estimates — no invented problems
  • Trusted with classics and daily drivers alike
Job 05 · Signed off by drivers 4.8 · 90 Google reviews

The reason the phone keeps ringing

I mostly own classic cars because vehicles nowadays are just computers on wheels, so it's hard to find mechanics who work on cars older than the 1990s. I've sent all of my classic cars and their issues to Dettmer with perfect results. It's hard to find a trustworthy shop nowadays that you don't have to worry about — they take pride in the work they do.
Vince Luciano Littleton, CO · Google
I have trusted Dettmer Auto with my vehicles since 1994, and they have consistently earned my respect. As I prepared for a 1,100-mile trip, I discovered a small leak in a transmission-cooling line. Knowing I was leaving early the next morning, Josh stayed late to diagnose and repair the issue before I hit the road. Thank you to the whole Dettmer Auto team!
M Boss Littleton, CO · Google
Really great first experience with Dettmer this week. They were able to fix my Jeep for a fair price and were very easy to work with. I unfortunately don't trust most automotive places due to past experiences, but I will say that I trust Dettmer and will definitely work with them again.
Michael Littleton, CO · Google
Friendly, fast, and honest about the car process. Never fail to check out this auto shop. Worth the time, effort, and most importantly vehicle longevity! A must for anyone wanting proper work.
Larry Lawley Littleton, CO · Google
This place is amazing! They treat you like family. My husband and I were on our way out of town for our anniversary and the trunk of our car wouldn't open. One call to Dettmer and they said to come right in. Ten minutes after we got there the car was fixed, we were told 'Happy Anniversary,' and not charged. I trust this company with all our cars.
Bobbi McPoffel Littleton, CO · Google
A clean, organized service bay in daylight
Ready when you are

Get on the calendar with a shop that explains first.

(303) 781-2881

Mon–Fri · 8:00 AM – 6:00 PM · Littleton, CO

Job 06 · Straight answers Before you call

Questions we hear a lot

Do you give estimates before starting work?

Yes. We explain what we found and give you an honest estimate before we touch anything. You decide what to do with the full picture in front of you — no surprise charges.

Will you work on older or classic vehicles?

Absolutely. We're one of the shops that still enjoys working on older cars and trucks, including pre-1990s vehicles that many places won't take on. Drivers regularly bring us classics that stumped other shops.

What are your hours?

We're open Monday through Friday, 8:00 AM to 6:00 PM, and closed Saturday and Sunday. Give us a call at (303) 781-2881 to set up a time.

Where are you located?

We're at 5021 S Rio Grande St # B in Littleton, CO 80120, serving Littleton and the surrounding Front Range.

Can you check my car before a long road trip?

Yes — a pre-trip inspection is one of the smartest things you can do before a long drive. We'll look over brakes, fluids, belts, hoses, and cooling lines so you're not caught off guard on the highway. Call ahead and we'll get you scheduled.

How do I make an appointment?

Just call us at (303) 781-2881. Tell us what's going on with your vehicle and we'll find a time that works and let you know what to expect.

Job 07 · Contact Littleton, CO · (303) 781-2881

Tell us what your car is doing

Send it over or call — we'll get back with a time and a straight answer. No long forms, no runaround.

Request an estimate

Prefer to talk it through? Call (303) 781-2881 — Mon–Fri, 8–6.

Work Order · Scheduling
Demo

Online scheduling lives right here at launch.

This is a preview build, so the button doesn't take a live booking yet. When Dettmer goes live we wire Schedule service straight into the scheduling system already running their front desk — Shopmonkey, Tekmetric, AutoLeap, whatever they use — or set one up with them.

Fastest way to get on the calendar today:

Call (303) 781-2881

Mon–Fri · 8:00 AM – 6:00 PM

🚀 Make it official Launch this site — from $99/mo