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The RV Shop
- Mobile
- Technician
- Paint
“Zaina and Anthony were extremely knowledgeable, highly capable and professional, with exceptional communication skills that all made everything come together, on schedule.”
Truck Repair in New Castle, DE
24 mechanics listed · 19 in New Castle · 5 open weekends · 19 rated 4.5+ · 1 shows a license
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ARS Truck & Fleet Service
Mobile Fleet Service, Mobile Truck Repair
“They aren't only the best fleet service company I've ever had the opportunity to and the honor to do business with, but they are they are the best employer.”
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Cottman Transmission and Total Auto Care
Transmission Coolers, 4×4 Transmission Repair, Rebuilt Transmissions
“Service was excellent was able to drop off and pick up at good time, Mark was great, recommend for service to anyone Acadia don't shutter no more very happy.”
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Sindall Truck Service LLC
“One of the best shops around..”
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Reds & Sons Auto Repair
- Talk
- Work
- Price
“Reds & Sons did some minor repairs and tests for a few hundred, checked up on it regularly for a few weeks, and helped me keep it running smoothly without an expensive overhaul.”
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Trans Plus Inc
- Mechanic
- Oil
- Vehicle
“Positive Punctuality, Quality, Professionalism, Value Services Transmission, Air & cabin filter replacement, Steering & suspension repair, General repairs & maintenance, Auto engine diagnostic, Wheel alignment, Brakes, Brake service & repair, Oil cha...”
Area overview: New Castle, DE
Of the 24 mechanics we list here, 19 are in New Castle itself and 5 come from New Holland (2, 40 mi), Wilmington (2, 5 mi) and Bear (1, 4 mi). The mechanics on this page are rated from 4.0 to 5.0 across 1,627 reviews; 10 have 50 or more reviews and 19 are rated 4.5 or higher. When customers rate these mechanics on specific qualities, they most often praise professionalism (90%), quality (77%) and value (67%). 5 are open on Saturdays. 1 shows a license on its website; 2 list staff certifications (ASE) and 7 have a BBB rating of A or A+. Domain records put 11 websites of the mechanics on this page at ten or more years old; the oldest dates from 1996. 1 gives free estimates and 5 are family- or locally-owned. We have a website on file for 18 of the mechanics on this page; 13 publish a contact page; 8 list a public email and 1 takes bookings online. We count these figures across the mechanics on this page; distances are straight-line, and hours and prices change, so confirm the details with the mechanic before you visit.
Data verified October 6, 2026
Listed for drivers in and around New Castle, DE, these 24 shops work on medium and heavy duty trucks. What each one says about fleet accounts, road service, inspections and hours comes from its own website; ratings and quotes come from public reviews.
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Delaware Fleet Services Inc
Electrical and Lighting Repairs, Welding Arc, Mig, Tig, Aluminum, Stainless Steel, Mild Steel, Brake and Suspension Repairs
“Great service every visit.”
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Dj's Automotive
- Rent
- Diagnostic
- Price
“I will continue to go there David James was straight forward and honest about my car situation he was helpful and took the time to show me the problems with my car as well as explaining things to me.”
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M&M Automotive
Fleet, Off-Road Customization, Tires
“Great guys, solid service work.”
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Bayshore Truck Center
- Box Truck
- Commercial Vehicle
- Future
“I came to the lot to purchase a Day cab semi, And I was immediately helped by Lisa, she was very professional and had great knowledge, I recommend anyone looking for a commercial vehicle to visit Bayshore Truck Center in New Castle”
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Anthony d'S Auto Repair
- Prices
- Pump
- Vehicles
“I can't say enough about this company, there the best I told berry my truck was broke down barerly drivable and I was down to riding my motorcycle in the middle of winter and I needed fixed as fast as possible even though were busy they got it right ...”
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Byers Garage
- Prices
- Vehicle
- Mechanic
“We ended up taking our truck to someone else (who was closer to our home) for a new transmission, only to discover we could have saved close to $1000 if we took it to Byers!”
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Pioneer Diesel Mechanic LLC
“We transport both from Florida up to New York and we had an issue and this place took care of us immediately and was definitely fair on price.”
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First State Fleet Service
“I haven't heard anything from them, except they're working on the diagnosis of my car, but didn't think it had a motor problem but were still working on it.”
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USA Repair Shop
Differential Rebuilding, Transmission Rebuilding, Glider Kit Installation
“Pleasure to work with them.”
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L & L Cars & Truck Parts
“I go here all the time, they are especially helpful when looking for parts the other guys can't seem to find, they offer old fashioned customer service and are willing to search for those hard to find parts, and they also can order navigate parts for...”
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Breitenbach Diesel
- Price
“Jc went above and beyond sourcing and installing an upgraded transmission for my truck as well as an upgraded cooler, rear main seal, track bar ball joint, and properly flushing trans cooler lines all for a great price.”
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Ccdiesel
“Good shop reasonable prices”
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K&R Truck & Repair Service
“They're reasonable folks.”
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J&J Fleet Services
“I give you a 4/5 simply because it was my first time and I for sure will definitely be back again to get pics of some of the trucks (I'm a truck enthusiast).”
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Universal Fleet Repair Inc
“Excellent work”
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JV Auto Service
Napa Peace of Mind Warranty, Schedule My Service, Fleet Services
“They are true and honest folks and their work is excellent!”
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Northeast Body Shop
- Results
- Rental
- Coast
“I'm extremely satisfied and would recommend Northeast body shop to anyone interested in getting the best value, courteous service and on time completion for their vehicle.”
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Asap Automotive
Transmission Repair and Service, Clutch Replacement, Air Conditioning
“You can always depend on ASAP to perform service requested but also provide a thorough report on what or if there are any other issues with the vehicle.”
Heavy Duty Truck Repair Services in New Castle, DE Cost Estimates
Minimum cost
$290
Maximum cost
$3500
National Average
$441
Avg Per Hour Rates
$110
$330
$653
Fair price range is based on 519 cost profiles
Why these companies made our list
Is this page useful? Yes
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Is there anything wrong with this page?
FAQ
Why does this page include shops beyond New Castle?
19 of the 24 shops sit inside New Castle; the rest come from other towns and are shown with their own city. Truck shops need land, long approaches and highway access, so they end up on the edge of town. Drivers already plan around that.
What customers say about mechanics in New Castle
- “The truck being as-is, I was able to inspect the vehicle throughly to my liking and test drive the truck as well to ensure its smooth operations.” — customer of Bayshore Truck Center
- “I would highly recommend them to keep your fleet up and running.” — customer of ARS Fleet Service
- “I give you a 4/5 simply because it was my first time and I for sure will definitely be back again to get pics of some of the trucks (I'm a truck enthusiast).” — customer of J&J Fleet Services
Excerpts from public reviews of the mechanics listed on this page.