Diesel Repair · San Antonio, TX/Updated June 13, 2026
The 10 Best Diesel Repair Shops in San Antonio, TX
From heavy-duty trucks to light-duty vehicles, diesel repair is essential in San Antonio's bustling transport scene. Our list highlights the best shops based on real customer feedback.
MHMaya Hendricks · Home Services Editor Updated June 13, 2026 · Next review July 2026
Editorially independent10 companies evaluated
cover story
★ Editor's ChoiceUltimate Diesel & Auto Repair
96Score
Latest update · June 13, 2026: Initial ranking published. 10 San Antonio-metro diesel repair businesses evaluated, top 10 ranked by Vetted Score.
In a city like San Antonio, where diesel engines power everything from work trucks to recreational vehicles, finding a reliable diesel repair shop is crucial. With 10 local providers evaluated, the differences in service quality can be stark.
Our rankings reflect a careful analysis of customer reviews and ratings. The top shop, Ultimate Diesel & Auto Repair, leads with a perfect 5-star rating from 93 reviews, while the rest of the field shows a wider range of performance and trustworthiness.
10diesel repair shops evaluated in San Antonio
4.49average rating across the field
1.2Kcustomer reviews analyzed
Cityvetted analysis of public Google review data, updated June 13, 2026.
We evaluated each diesel repair shop in San Antonio based on their customer ratings and review counts. Our process ensures that no business pays for placement, maintaining an unbiased ranking.
Reviews are refreshed monthly to keep our list updated. This way, you can make informed decisions based on the latest customer experiences and satisfaction levels.
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.
With a perfect rating of 5 stars from 93 reviews, Ultimate Diesel & Auto Repair is celebrated for its exceptional service and knowledgeable staff. Customers frequently highlight the shop's efficiency and thorough diagnostics. This shop excels in providing quick turnaround times for diesel repairs. However, some patrons note that the pricing can be slightly higher than average.
Rated 4.8 stars across 384 reviews, Truck Source Diesel is a popular choice among diesel vehicle owners. Reviewers commend their extensive experience and the variety of services offered, from diagnostics to complete overhauls. This shop is best known for its thoroughness in repairs. Some customers have reported longer wait times during busy periods.
D & S Garage and Diesel Service holds a solid 4.7-star rating from 347 reviews. Customers often praise the friendly and attentive service. The shop is known for its ability to tackle complex diesel issues effectively. However, some clients have mentioned variability in turnaround times depending on the workload. A review base that deep is hard to game, and the score barely moves across it, which is the clearest consistency signal we track. Most of what reviewers hire it for is excellent customer service. It serves San Antonio, TX, with $120 to $550 pricing, and the honest trade-offs are variable turnaround times.
Brady Diesel Services has a rating of 4.8 stars from 42 reviews. Customers appreciate the shop's expertise in diesel engines and its personalized service. This shop is suitable for those looking for specialized diesel repair. However, the limited number of reviews suggests it may not have as extensive a track record as larger competitors.
Texas Diesel Injection rates at 4.6 stars from 142 reviews. Customers highlight the shop's focus on diesel fuel systems and its knowledgeable technicians. This is an ideal spot for fuel injection repairs. However, some clients report that communication could be improved during the repair process. 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 fuel injection repairs. It serves San Antonio, TX, with $150 to $550 pricing, and the honest trade-offs are communication issues.
Complete Diesel Repairz & Performance has a solid rating of 4.6 stars from 73 reviews. Reviewers appreciate their performance upgrades and general repairs. This shop is a good fit for those looking to enhance their diesel vehicle's capabilities. However, some feedback indicates that the shop may be slower than expected during busy times.
Dynamic Diesel Service has a rating of 4.6 stars from 65 reviews. Customers value their fast service and knowledgeable staff. This shop is great for quick fixes and routine maintenance. However, the limited number of reviews could mean inconsistent experiences for new customers. 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 and maintenance. It serves San Antonio, TX, with $100 to $400 pricing, and the honest trade-offs are limited reviews.
With a rating of 4 stars from just 1 review, Danny's Diesel Repair and Diagnostics shows promise but remains unproven. The single review praises the service quality, hinting at potential. However, the lack of a broader review base makes it hard to gauge consistency and 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 potential for good service. It serves San Antonio, TX, with $100 to $300 pricing, and the honest trade-offs are unproven with limited reviews.
Pros
Promising service quality
Cons
Unproven with limited reviews
Best forPotential for good service
Service areaSan Antonio, TX
Typical pricing$100 to $300
9
Javier De La Cerda Diesel Repair Inc.
★★★★★4.2(27 reviews)
78Score
Javier De La Cerda Diesel Repair Inc. has a rating of 4.2 stars from 27 reviews. Customers mention the shop's friendly staff and willingness to help with various diesel issues. Although it has a decent rating, the limited number of reviews indicates it may not have the same reliability as more established options.
Pros
Friendly staff
Helpful with various issues
Cons
Limited reviews may affect reliability
Best forFriendly service
Service areaSan Antonio, TX
Typical pricing$100 to $400
10
Texas Truck Shop
★★★★★3.6(74 reviews)
78Score
Texas Truck Shop has a rating of 3.6 stars from 74 reviews. Customers appreciate their range of services, but many note inconsistent quality and service times. This shop may work for basic diesel repairs but may not be the best choice for complex issues due to the mixed feedback from clients.
Pros
Range of services
Cons
Inconsistent quality
Mixed customer feedback
Best forBasic diesel repairs
Service areaSan Antonio, TX
Typical pricing$100 to $350
Before you book
How to choose a diesel repair shop in San Antonio
Selecting the right diesel repair shop involves more than just looking at ratings. Pay attention to customer feedback and the specific services offered.
Check the number of reviews
A shop with a high number of reviews, like Truck Source Diesel with 384, indicates consistent service quality compared to those with fewer reviews.
Look for specialized services
Some shops may excel in specific areas, such as performance upgrades or diagnostics, so consider what your vehicle needs.
Evaluate response to negative feedback
Review how businesses address complaints. A proactive approach can signal commitment to customer satisfaction.
What it costs
What diesel repair costs in San Antonio
Understanding the cost of diesel repair can help you budget for necessary services. Prices vary based on the type of repair needed and the shop's reputation.
Basic maintenance$100 to $300 for oil changes, filter replacements, and routine checks.
Minor repairs$300 to $800 for brake jobs, exhaust system repairs, and minor engine work.
Major repairs$800 to $2,500 for engine overhauls, transmission work, and extensive diagnostics.
Performance upgrades$500 to $5,000 depending on the complexity and parts required for enhancements.
Frequently asked questions
How much does diesel repair cost in San Antonio?
Typically, diesel repair costs range from $150 to $500, depending on the service needed and the shop's pricing.
Which diesel repair shop has the most reviews in San Antonio?
Truck Source Diesel has the most reviews, with 384, indicating a solid reputation among its customers.
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 San Antonio drivers: <strong>Ultimate Diesel & Auto Repair</strong>
The clear leader in the diesel repair category is Ultimate Diesel & Auto Repair, with a perfect 5-star rating from 93 reviews. This indicates consistent customer satisfaction. Following closely is Truck Source Diesel, with an impressive 4.8 rating based on 384 reviews, showcasing its reliability. Rounding out the top three is D & S Garage and Diesel Service, which, while slightly lower at 4.7 from 347 reviews, still demonstrates strong performance. For the best results, start with Ultimate Diesel, then consider Truck Source if you need more options.
Cityvetted
