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Diesel Repair · Charleston, SC/Updated June 13, 2026

The Best Diesel Repair Shops in Charleston, SC

From heavy-duty repairs to mobile services, these diesel repair shops in Charleston are top-rated for their reliability and expertise.

Editorially independent9 companies evaluated
cover story
★ Editor's ChoicePoppa Diesel Automotive & Detail Ltd Co.
96Score
Latest update · June 13, 2026: Initial ranking published. 9 Charleston-metro diesel repair businesses evaluated, top 9 ranked by Vetted Score.

Diesel repair services are essential for maintaining the performance and longevity of diesel vehicles, which are crucial for both personal and commercial use. In Charleston, SC, finding a trustworthy diesel repair shop can ensure your vehicle runs smoothly and efficiently, minimizing downtime and repair costs.

To compile this list, we evaluated nine diesel repair shops in the Charleston metro area, considering customer reviews, service quality, and overall satisfaction. Our ranking reflects the businesses' Vetted Scores, which are based on real customer feedback and service performance.

9diesel repair shops evaluated in Charleston
4.68average rating across the field
454customer reviews analyzed

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

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

Our top picks

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

Poppa Diesel Automotive & Detail Ltd Co.

★★★★★5.0(40 reviews)

With a perfect rating of 5 from 40 reviews, Poppa Diesel Automotive & Detail Ltd Co.

Read full review
Best Value
95Score

Bulls Bay Diesel Heavy Duty Repair & Performance also boasts a 5-star rating from 30 reviews, highlighting their expertise in heavy-duty repairs and performance enhancements.

Read full review
Most Reviewed
94Score

G & S Truck Repair Inc

★★★★★4.9(36 reviews)

G & S Truck Repair Inc has earned a stellar rating of 4.9 from 36 reviews, with many customers praising their prompt service and quality repairs.

Read full review

All 9, compared

Data as of June 13, 2026
BusinessVetted ScoreGoogle ratingReviewsBest for
1
96Score
5.0★★★★★
40Overall diesel repair excellence
2
95Score
5.0★★★★★
30Heavy-duty diesel repairs
3
94Score
4.9★★★★★
36Routine maintenance and emergency repairs
4
93Score
4.8★★★★★
46Complex diesel engine repairs
5
91Score
4.6★★★★★
107Affordable diesel maintenance
6
90Score
4.6★★★★★
94Performance enhancements and tuning
7
88Score
5.0★★★★★
15On-site emergency repairs
8
82Score
4.2★★★★★
10On-site convenience
9
78Score
4.0★★★★★
76Basic diesel repairs
Methodology

How we evaluated all 9 diesel repair shops.

We assessed each diesel repair shop based on their ratings and the volume of customer reviews. Our analysis focuses on transparency and accuracy, ensuring that no business pays for placement in our rankings. This approach allows us to provide a trustworthy guide for Charleston residents seeking diesel repair services.

Our rankings are updated monthly, reflecting the latest review data and customer experiences. We aim to give you the most current insights into local service providers, helping you make informed decisions.

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

Poppa Diesel Automotive & Detail Ltd Co.

★★★★★5.0(40 reviews)
96Score

With a perfect rating of 5 from 40 reviews, Poppa Diesel Automotive & Detail Ltd Co. stands out for its exceptional service and customer care. Reviewers frequently praise their knowledgeable staff and quick turnaround times, making them a top choice for diesel repairs. However, their limited service area might not be convenient for everyone.

Pros

  • Exceptional customer service
  • Quick turnaround times
  • Highly knowledgeable staff

Cons

  • Limited service area
  • Higher prices for some services
Best forOverall diesel repair excellence
Service areaCharleston and surrounding areas
Typical pricing$100 to $300
2
Best Value

Bulls Bay Diesel Heavy Duty Repair & Performance

★★★★★5.0(30 reviews)
95Score

Bulls Bay Diesel Heavy Duty Repair & Performance also boasts a 5-star rating from 30 reviews, highlighting their expertise in heavy-duty repairs and performance enhancements. Customers appreciate their thorough diagnostics and reliable repairs. The only downside is their smaller facility, which may limit the number of vehicles they can service at once.

Pros

  • Expert in heavy-duty repairs
  • Thorough diagnostics
  • Reliable performance enhancements

Cons

  • Smaller facility
  • Potential wait times during busy periods
Best forHeavy-duty diesel repairs
Service areaCharleston and nearby regions
Typical pricing$300 to $800
3
Most Reviewed

G & S Truck Repair Inc

★★★★★4.9(36 reviews)
94Score

G & S Truck Repair Inc has earned a stellar rating of 4.9 from 36 reviews, with many customers praising their prompt service and quality repairs. They excel in both routine maintenance and emergency repairs, making them a reliable choice for diesel vehicle owners. However, some customers have reported occasional delays during peak times.

Pros

  • Prompt service
  • Quality repairs
  • Experienced technicians

Cons

  • Occasional delays during busy periods
  • Limited hours on weekends
Best forRoutine maintenance and emergency repairs
Service areaCharleston and surrounding areas
Typical pricing$100 to $300
4

DW Diesel Repair LLC

★★★★★4.8(46 reviews)
93Score

DW Diesel Repair LLC has garnered a 4.8 rating from 46 reviews, with customers often highlighting their thorough inspections and effective repairs. They are particularly known for their ability to handle complex issues with diesel engines. However, some reviews mention variable communication, which could be improved. 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 complex diesel engine repairs. It serves Charleston and nearby areas, with $300 to $800 pricing, and the honest trade-offs are variable communication and limited service hours.

Pros

  • Thorough inspections
  • Effective complex repairs
  • Experienced mechanics

Cons

  • Variable communication
  • Limited service hours
Best forComplex diesel engine repairs
Service areaCharleston and nearby areas
Typical pricing$300 to $800
5

Palmetto Diesel Pros

★★★★★4.6(107 reviews)
91Score

Palmetto Diesel Pros holds a solid rating of 4.6 from 107 reviews, making them a popular choice for diesel maintenance and repairs. Customers appreciate their competitive pricing and friendly service. However, their larger workload sometimes results in longer wait times for appointments. 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 affordable diesel maintenance. It serves Charleston and surrounding areas, with $100 to $300 pricing, and the honest trade-offs are longer wait times for appointments and occasional scheduling issues.

Pros

  • Competitive pricing
  • Friendly service
  • Popular among locals

Cons

  • Longer wait times for appointments
  • Occasional scheduling issues
Best forAffordable diesel maintenance
Service areaCharleston and surrounding areas
Typical pricing$100 to $300
6

Performance Diesel

★★★★★4.6(94 reviews)
90Score

Performance Diesel shares a rating of 4.6 from 94 reviews, with customers praising their performance enhancements and reliable repairs. They are well-regarded for their expertise in diesel tuning and upgrades. However, some customers have expressed concerns about pricing, which can be on the higher side. 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 performance enhancements and tuning. It serves Charleston and surrounding areas, with $300 to $800 pricing, and the honest trade-offs are higher pricing compared to competitors and limited service options.

Pros

  • Expertise in tuning and upgrades
  • Reliable repairs
  • Strong customer loyalty

Cons

  • Higher pricing compared to competitors
  • Limited service options
Best forPerformance enhancements and tuning
Service areaCharleston and surrounding areas
Typical pricing$300 to $800
7
88Score

Southeastern Fleet Services & Mobile Truck Repair has a 5-star rating from 15 reviews, showcasing their efficiency in on-site repairs. Customers appreciate the convenience of their mobile services, especially for emergencies. However, the limited number of reviews makes their reliability 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 emergency repairs. It serves Charleston and surrounding areas, with $150 to $500 pricing, and the honest trade-offs are limited review base and potentially higher costs for mobile services.

Pros

  • Convenient mobile services
  • Efficient emergency repairs
  • Responsive customer service

Cons

  • Limited review base
  • Potentially higher costs for mobile services
Best forOn-site emergency repairs
Service areaCharleston and surrounding areas
Typical pricing$150 to $500
8

K&D Diesel Mobile Repair

★★★★★4.2(10 reviews)
82Score

K&D Diesel Mobile Repair has earned a rating of 4.2 from 10 reviews, noted for their quick response times and mobile capabilities. Reviewers appreciate their ability to address issues on-site, providing convenience for busy customers. However, their small review base raises questions about consistency and overall 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 on-site convenience. It serves Charleston and surrounding areas, with $150 to $500 pricing, and the honest trade-offs are small review base and limited service offerings.

Pros

  • Quick response times
  • Convenient mobile service
  • Flexible scheduling

Cons

  • Small review base
  • Limited service offerings
Best forOn-site convenience
Service areaCharleston and surrounding areas
Typical pricing$150 to $500
9

General Diesel

★★★★★4.0(76 reviews)
78Score

General Diesel has a rating of 4 from 76 reviews, with customers noting their reliable service and fair pricing. They are a good option for basic diesel repairs and maintenance. However, some customers have reported inconsistencies in service quality, which may vary by technician. 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 diesel repairs. It serves Charleston and surrounding areas, with $100 to $300 pricing, and the honest trade-offs are inconsistent service quality and mixed reviews on customer service.

Pros

  • Reliable service
  • Fair pricing
  • Good for basic repairs

Cons

  • Inconsistent service quality
  • Mixed reviews on customer service
Best forBasic diesel repairs
Service areaCharleston and surrounding areas
Typical pricing$100 to $300
Before you book

How to choose a diesel repair shop in Charleston

Selecting the right diesel repair shop involves considering several key factors to ensure quality service and customer satisfaction.

Check Reviews

Look for shops with a high volume of positive reviews to gauge reliability and service quality.

Evaluate Services Offered

Choose a shop that provides the specific services you need, from routine maintenance to complex repairs.

Consider Location and Availability

Select a shop that is conveniently located and offers flexible hours to accommodate your schedule.

Inquire About Pricing

Get estimates from multiple shops to ensure competitive pricing and avoid unexpected costs.

What it costs

What diesel repair costs in Charleston

Diesel repair costs can vary significantly based on the nature of the service and the shop's location. Here's a general overview of what to expect in Charleston.

Basic Maintenance$100 to $300 for oil changes and filter replacements.
Minor Repairs$300 to $800 for services like brake replacements or electrical diagnostics.
Major Repairs$800 to $2,500 for engine overhauls or transmission repairs.
Mobile Services$150 to $500 for on-site repairs, depending on the service required.

Frequently asked questions

How much does diesel repair cost in Charleston?

Diesel repair costs typically range from $100 to $2,500, depending on the service type and complexity.

What should I look for in a diesel repair shop?

Look for positive reviews, a range of services, convenient location, and transparent pricing.

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 Charleston diesel vehicle owners: Poppa Diesel Automotive & Detail Ltd Co.

The top three winners are Poppa Diesel Automotive & Detail Ltd Co., Bulls Bay Diesel Heavy Duty Repair & Performance, and G & S Truck Repair Inc. Each excels in service quality, customer satisfaction, and reliability, making them the best choices for diesel repairs in Charleston.