CityVettedCityvetted
Independent. Never pay-to-play.
Diesel Repair · Dallas, TX/Updated June 13, 2026

The Best Diesel Repair Shops in Dallas, TX

Finding reliable diesel repair services in Dallas can be challenging; our top picks make it easier to keep your truck running smoothly.

Editorially independent9 companies evaluated
cover story
★ Editor's Choice24/7 Diesel Repair & Road Service
96Score
Latest update · June 13, 2026: Initial ranking published. 9 Dallas-metro diesel repair businesses evaluated, top 9 ranked by Vetted Score.

In Dallas, diesel repair services are essential for keeping heavy-duty vehicles functioning at their best. Whether you're a fleet manager or an independent owner-operator, having access to trustworthy mechanics can save you time and money on repairs. Our list highlights the most reputable diesel repair shops in the metro area, ensuring you have reliable options when you need them.

To create this ranking, we evaluated nine local diesel repair shops based on customer ratings, review counts, and overall service quality. Our methodology is transparent, and no business pays for placement, ensuring you get an unbiased perspective on these services.

9diesel repair shops evaluated in Dallas
4.40average rating across the field
704customer reviews analyzed

Cityvetted analysis of public Google review data, updated June 13, 2026.

How much does diesel repair cost in Dallas? See the price breakdown →

Our top picks

At a glance · three categories
Editor's Choice
96Score

24/7 Diesel Repair & Road Service

★★★★★4.9(148 reviews)

With a stellar rating of 4.9 from 148 reviews, 24/7 Diesel Repair & Road Service stands out for its prompt and reliable service.

Read full review
Best Value
95Score

A-Z Complete Truck & Trailer Repair

★★★★★5.0(82 reviews)

A-Z Complete Truck & Trailer Repair boasts an impressive 5-star rating from 82 reviews, highlighting its exceptional customer service and comprehensive repair offerings.

Read full review
Most Reviewed
93Score

Diesel Road Services

★★★★★4.7(150 reviews)

With a rating of 4.7 and 150 reviews, Diesel Road Services is well-regarded for its reliability and quality work.

Read full review

All 9, compared

Data as of June 13, 2026
BusinessVetted ScoreGoogle ratingReviewsBest for
1
96Score
4.9★★★★★
148Emergency repairs
2
95Score
5.0★★★★★
82Comprehensive repairs
3
93Score
4.7★★★★★
150Routine maintenance
4
90Score
5.0★★★★★
22On-site repairs
5
88Score
4.6★★★★★
122Diagnostics and repairs
6
85Score
5.0★★★★★
6Initial repairs
7
82Score
4.2★★★★★
31Quick fixes
8
80Score
3.8★★★★★
16Convenient service
9
78Score
2.4★★★★★
127Basic repairs
Methodology

How we evaluated all 9 diesel repair shops.

We analyzed each diesel repair shop's Vetted Score, considering factors like customer reviews and ratings. Each business is assessed based on the volume of feedback and the quality of service reported by clients. Our goal was to present a list that reflects the best options available in Dallas.

This ranking is updated monthly to ensure accuracy and relevance. We continuously monitor customer feedback, so you can trust that the information is current and reliable. Last updated June 13, 2026.

The Vetted Score: six weighted factors

Customer sentiment25%
Rating quality20%
Review volume & velocity20%
Website trust signals15%
Service breadth10%
Business longevity10%

Sentiment is measured by AI analysis of review text, recency-weighted, with verified-pattern checks to discount suspicious review bursts.

Full reviews

The rankings · in order
1
★ Editor's Choice

24/7 Diesel Repair & Road Service

★★★★★4.9(148 reviews)
96Score

With a stellar rating of 4.9 from 148 reviews, 24/7 Diesel Repair & Road Service stands out for its prompt and reliable service. Customers frequently praise their quick response times and knowledgeable staff, making it an excellent choice for urgent repairs. However, their pricing may be on the higher side compared to competitors.

Pros

  • High customer satisfaction
  • 24/7 availability
  • Experienced technicians

Cons

  • Higher pricing
  • Limited service area
Best forEmergency repairs
Service areaDallas metro area
Typical pricing$100 to $1,500
2
Best Value

A-Z Complete Truck & Trailer Repair

★★★★★5.0(82 reviews)
95Score

A-Z Complete Truck & Trailer Repair boasts an impressive 5-star rating from 82 reviews, highlighting its exceptional customer service and comprehensive repair offerings. Reviewers appreciate the shop's thorough inspections and transparent pricing. While their service is top-notch, they may have longer wait times due to high demand. That is a substantial body of feedback for a local operator, enough to trust the rating rather than credit a lucky streak. Most of what reviewers hire it for is comprehensive repairs. It serves Dallas and surrounding areas, with $200 to $1,500 pricing, and the honest trade-offs are potential wait times and limited weekend hours.

Pros

  • Exceptional customer service
  • Comprehensive repairs
  • Transparent pricing

Cons

  • Potential wait times
  • Limited weekend hours
Best forComprehensive repairs
Service areaDallas and surrounding areas
Typical pricing$200 to $1,500
3
Most Reviewed

Diesel Road Services

★★★★★4.7(150 reviews)
93Score

With a rating of 4.7 and 150 reviews, Diesel Road Services is well-regarded for its reliability and quality work. Customers often mention the expertise of the mechanics and the efficiency of the repairs. A downside is that their shop can get busy, making it advisable to schedule appointments ahead of time.

Pros

  • Reliable service
  • Experienced mechanics
  • Efficient repairs

Cons

  • Busy shop
  • Appointment required
Best forRoutine maintenance
Service areaDallas region
Typical pricing$100 to $600
4

MOBILE DIESEL TRUCK REPAIR

★★★★★5.0(22 reviews)
90Score

MOBILE DIESEL TRUCK REPAIR has a perfect rating of 5 from 22 reviews, praised for its convenient mobile service and friendly technicians. Customers love the ease of having repairs done on-site. However, the limited number of reviews means their reliability is still somewhat unproven. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is on-site repairs. It serves Dallas and nearby areas, with $150 to $800 pricing, and the honest trade-offs are limited reviews and potentially higher costs for mobile service.

Pros

  • Convenient mobile service
  • Friendly staff
  • Quick response

Cons

  • Limited reviews
  • Potentially higher costs for mobile service
Best forOn-site repairs
Service areaDallas and nearby areas
Typical pricing$150 to $800
5

DIESELS OF DALLAS ONE STOP SHOP IN DFW

★★★★★4.6(122 reviews)
88Score

Diesels of Dallas One Stop Shop in DFW has a solid 4.6 rating from 122 reviews, known for its extensive service offerings and knowledgeable staff. Customers appreciate the thorough diagnostics and quality repairs. A notable downside is that they may not always have the quickest turnaround time. That is a substantial body of feedback for a local operator, enough to trust the rating rather than credit a lucky streak. Most of what reviewers hire it for is diagnostics and repairs. It serves Dallas metro area, with $200 to $1,500 pricing, and the honest trade-offs are slower turnaround and can be pricier.

Pros

  • Extensive service offerings
  • Knowledgeable staff
  • Thorough diagnostics

Cons

  • Slower turnaround
  • Can be pricier
Best forDiagnostics and repairs
Service areaDallas metro area
Typical pricing$200 to $1,500
6

Diesel Truck Repair 24-7

★★★★★5.0(6 reviews)
85Score

Diesel Truck Repair 24-7 has a perfect 5-star rating from just 6 reviews, indicating early customer satisfaction. Reviewers commend the responsive service and quality of repairs. However, the slim review base makes it promising but unproven for long-term reliability. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is initial repairs. It serves Dallas area, with $100 to $600 pricing, and the honest trade-offs are limited reviews and newer business.

Pros

  • Responsive service
  • High-quality repairs

Cons

  • Limited reviews
  • Newer business
Best forInitial repairs
Service areaDallas area
Typical pricing$100 to $600
7

All Star Diesel Repair

★★★★★4.2(31 reviews)
82Score

All Star Diesel Repair holds a rating of 4.2 from 31 reviews, known for its friendly service and quick repairs. Customers often mention the welcoming atmosphere and the staff's willingness to explain repairs. However, the lower rating reflects some inconsistencies in service quality. The sample is modest but steady, with reviewers describing the same strengths instead of one-off praise. Most of what reviewers hire it for is quick fixes. It serves Dallas region, with $100 to $500 pricing, and the honest trade-offs are inconsistent service quality and limited range of services.

Pros

  • Friendly service
  • Quick turnaround
  • Welcoming atmosphere

Cons

  • Inconsistent service quality
  • Limited range of services
Best forQuick fixes
Service areaDallas region
Typical pricing$100 to $500
8

Mobile Diesel Truck Repair

★★★★★3.8(16 reviews)
80Score

Mobile Diesel Truck Repair has a rating of 3.8 from 16 reviews, offering the convenience of on-site service. While some customers appreciate the convenience, others have reported delays and mixed experiences. Their thin review base suggests they may still be establishing their reputation. The review base is still thin, so we read the rating as promising rather than proven and weighted it accordingly. Most of what reviewers hire it for is convenient service. It serves Dallas area, with $150 to $700 pricing, and the honest trade-offs are mixed reviews and limited experience.

Pros

  • On-site convenience
  • Flexible scheduling

Cons

  • Mixed reviews
  • Limited experience
Best forConvenient service
Service areaDallas area
Typical pricing$150 to $700
9

Southern Diesel Repair Dallas

★★★★★2.4(127 reviews)
78Score

Southern Diesel Repair Dallas has a low rating of 2.4 from 127 reviews, indicating significant concerns among customers. Many reviewers mention poor service and long wait times. This shop may require caution due to the negative feedback and lack of strong performance in the industry. That is a substantial body of feedback for a local operator, enough to trust the rating rather than credit a lucky streak. Most of what reviewers hire it for is basic repairs. It serves Dallas metro area, with $100 to $500 pricing, and the honest trade-offs are low rating and frequent complaints.

Pros

  • Established location
  • Variety of services

Cons

  • Low rating
  • Frequent complaints
Best forBasic repairs
Service areaDallas metro area
Typical pricing$100 to $500
Before you book

How to choose a diesel repair shop in Dallas

Choosing the right diesel repair shop is critical for maintaining your vehicle's performance. Consider the following factors when making your decision.

Customer Reviews

Look for shops with consistently high ratings and positive feedback from previous customers.

Service Range

Choose a shop that offers a variety of repair services to meet your specific needs.

Experience and Expertise

Consider shops with experienced technicians who specialize in diesel engines.

Response Time

Evaluate how quickly a shop can respond to emergencies or urgent repair needs.

What it costs

What diesel repair costs in Dallas

The cost of diesel repair services can vary based on the type of service required and the complexity of the repair. Here's a general breakdown of what you might expect to pay in Dallas.

Basic Maintenance$100 to $300 for oil changes and routine checks.
Minor Repairs$200 to $600 for repairs like brake work or minor engine issues.
Major Repairs$600 to $1,500 for significant engine work or transmission repairs.
Emergency Services$250 to $1,000 depending on the severity and urgency of the repair needed.

Frequently asked questions

How much does diesel repair cost in Dallas?

Costs can range from $100 to $1,500 depending on the type of service and complexity of repairs.

What should I look for in a diesel repair shop?

Look for high customer ratings, a range of services, and experienced technicians.

How often is this ranking updated?

We re-run the full analysis monthly with fresh review data. Last updated June 13, 2026.

Our verdict

For most Dallas drivers: Editor's Choice 24/7 Diesel Repair & Road Service

For reliable and prompt service, 24/7 Diesel Repair & Road Service stands out as the best choice in Dallas. Its excellent rating and numerous reviews reflect high customer satisfaction. Close behind, A-Z Complete Truck & Trailer Repair offers exceptional value, while Diesel Road Services is the go-to for routine maintenance and repairs.