Auto & light-truck repair in Littleton — you approve the work and the price before we start.
We tell you what's actually wrong, explain it in plain English, and get you back on the road. No invented problems. No surprise on the final bill.
before we start Approved
What we fix — and how we explain it.
Every job is itemized and explained before it starts. Tap any line to see what's involved.
- 01 Check Engine Light & Diagnostics That warning light finally explained — clearly and honestly. View details
- 02 Brake Repair & Service Pads, rotors, and lines done right so you stop with confidence. View details
- 03 Oil Changes & Routine Maintenance The regular care that keeps small problems from becoming big ones. View details
- 04 Engine Repair & Tune-Ups From rough idles to no-starts, we track down what's really going on. View details
- 05 Transmission & Drivetrain Leaks, slipping, and shifting problems, diagnosed before they get worse. View details
- 06 Heating & A/C Repair Cold air in summer, warm air in winter — comfort you can count on. View details
- 07 Classic & Older Vehicle Repair The shop other places send you to when the car's older than their scanners. View details
- 08 Pre-Trip & Vehicle Inspections Peace of mind before the long drive or the big purchase. View details
The shop floor
A bright, clean shop — and a straight answer about your car.
Four steps. Nothing starts without your OK.
- 01
Free estimate — we diagnose and call you
Bring it in or call and describe what's happening. We find the real cause instead of guessing, and there's no charge to get a straight estimate.
- 02
We explain it in plain English
You'll hear exactly what's wrong and what it takes to fix it — no jargon, no scare tactics, no problems we invented to pad the bill.
- 03 Approved
You approve the work and the price
Nothing starts until you say go. You see the number and okay it first, so the final bill is never a surprise.
- 04
We fix it right — and you drive away
The work is done to spec and we stand behind it. Daily commuter, work truck, or a classic other shops turned away.
Noticing something off? Here's what it usually means.
Not sure which it is? That's exactly what a free estimate is for. No pressure, no invented repairs — just a straight answer.
(303) 781-2881
The same note runs through the reviews: drivers who don't trust mechanics keep trusting this one.
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 1990's. I sent my '64 GMC pickup to Dettmer to figure out what was wrong, and within 2 weeks it was fixed and running perfect. Since then I've sent all my classic cars to them with perfect results. It's hard to find a trustworthy shop you don't have to worry about — they take pride in the work they do.
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 wouldn't open. One call to Dettmer and they said to come right in. Ten minutes after we got there the car was fixed, they told us 'Happy Anniversary,' and didn't charge us. I trust this company with all our cars!
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!
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.
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.
The shop other drivers send their families to.
We built this shop on one simple idea: treat people the way we'd want to be treated with our own vehicles. That means walking you through what we find before we touch a wrench, quoting fairly, and never inventing problems to pad a bill. Drivers keep coming back — and sending their families and classic cars our way — because they know the work is done right and the price is straight. Whether it's a daily commuter, a work truck, or an older vehicle other shops won't touch, we take pride in the job and stand behind it.
Ready to get it looked at? Let's schedule your service.
Call for a free estimate and a real mechanic will talk it through, or start a schedule request and we'll confirm a time that works.
Questions, answered plainly.
Still have one? Call (303) 781-2881 — we'd rather talk it through.
01 Do you offer free estimates?
Yes. Give us a call at (303) 781-2881 and a real mechanic will talk through your situation and get you a free estimate. We explain what we find before we do any work — no surprises on the final bill.
02 What are your hours?
We're open Monday through Friday, 8:00 AM to 6:00 PM. We're closed Saturday and Sunday. The best way to reach us is a quick call at (303) 781-2881.
03 Where are you located and what areas do you serve?
We're at 5021 S Rio Grande St, Unit B, in Littleton, CO 80120, and we serve drivers throughout Littleton and the surrounding Front Range.
04 Will you explain the repair before you do it?
Always. We walk you through exactly what's wrong and what it takes to fix it before we start, so you can make an informed decision. We won't invent problems or do work you didn't approve.
05 Do you work on older or classic vehicles?
We do — including cars and trucks older than most modern shops will take on. Plenty of our customers bring us classic and pre-computer vehicles that other places turn away.
06 Do I need an appointment?
An appointment helps us plan your service, so calling ahead is always a good idea. If you've got an urgent problem, call us at (303) 781-2881 and we'll do our best to get you taken care of.
Tell us what's going on with your vehicle.
Send a few details and we'll get back to you — or just call, it's usually faster and a real mechanic picks up.
Call for a free estimate (303) 781-2881
5021 S Rio Grande St # B, Unit B
Littleton, CO 80120 · Serving Littleton & the Front Range
We only ask what we need to call you back. No spam, ever.