Mobile Semi Trailer Repair in Knoxville, TN

Knoxville sits where I-40, I-75, and I-81 come together, and a lot of trailers pass through, get dropped, and get swapped here.

Trailers sit in drop yards and at distribution centers around Knox County, get shuttled between carriers, and pick up road brine all winter. Many aren’t owned by whoever is pulling them, and they rarely get the attention a tractor does — until a light goes out at night, the landing gear won’t crank, or a brake won’t release.

Our mobile trailer repair handles the problems that stop trailers from moving or put them out of service, right where the trailer is parked. That’s especially useful in drop yards, where taking a trailer to a shop means finding a tractor and a driver just to move it.

What’s included with our Trailer Repair

Trailer brake work — chambers, slack adjusters, and shoes and drums where access allows
Trailer ABS faults and ABS lamp problems
Lighting — marker, tail, brake, and turn lights and wiring harnesses
Seven-way sockets, nose boxes, and junction boxes
Gladhands, air lines, and relay emergency valves
Landing gear repair and replacement, including gear boxes and crank handles
Swing door hinges, lock rods, and cam keepers; roll-up door springs, rollers, and cables
Air ride suspension — air springs, leveling valves, and shocks
Slider pins and release mechanisms
Mud flaps, brackets, and conspicuity tape
Rear impact guard repairs
Welding on crossmembers, brackets, and landing gear mounts (see mobile welding)

What needs a shop instead

Floor replacement in dry vans and reefers
Roof and side panel replacement after major damage
Main beam straightening or major structural repair
Axle replacement or alignment
Major collision repair

Refrigeration units are covered under reefer unit repair.

Repair it where it sits, or tow it?

Most trailer repairs are ideal for mobile service. The trailer is usually parked in a yard or at a dock, and moving it takes a tractor, a driver, and time. Lights, brakes, air lines, landing gear, and doors can typically be fixed right where it sits.

Structural damage is the main exception. A cracked main beam, damaged axle, or major collision damage needs a shop with a lift and fabrication equipment, and a trailer with serious structural damage shouldn’t be pulled loaded.

Have this ready when you call

A few details up front help the mechanic load the right parts and tools and get it done in one trip.

Trailer type: dry van, reefer, flatbed, lowboy, dump, or tanker
Trailer make and year, if you know them
What’s wrong: brakes, lights, landing gear, doors, suspension, or damage
Where it’s parked and whether a tractor is hooked to it
Whether it’s loaded, and whether there’s a shipper seal on the doors

Makes & engines we work on

Freightliner
Peterbilt
Kenworth
Volvo
Mack
International
Western Star

Trailers from Great Dane, Utility, Wabash, Hyundai Translead, Stoughton, Vanguard, Fontaine, and other manufacturers, plus flatbeds, lowboys, and dump trailers.

Trailer Repair around Knoxville & East Tennessee

Trailer repair calls come mostly from drop yards and distribution centers in East and West Knoxville and along the I-40 corridor toward Strawberry Plains and Midway Road. They also come from customer docks in Blount and Loudon counties, and from trailers that fail at the Knox County scales or break down on I-40, I-75, or I-81 mid-trip.

Highways we cover

Towns we cover

Trailer Repair: common questions

Can you fix a trailer with no tractor hooked up?

For many repairs, yes. Some jobs — like testing lights or air brakes — need power and air supplied to the trailer, so tell dispatch whether a tractor is available.

Do you work on flatbeds and lowboys?

Yes. Flatbeds, step decks, lowboys, and equipment trailers have the same brakes, lights, tires, and suspension as vans, plus deck and tie-down hardware that takes a beating.

Can you fix trailer lights that keep going out?

Yes. Repeat trailer light problems are almost always corrosion or damaged wiring in the nose box, harness, or sockets — and road brine is a big cause here. Fixing the connection fixes the problem.

Can you work on a loaded or sealed trailer?

Many repairs can be done loaded. A mechanic shouldn’t open doors or break a seal — if the repair needs access inside, the seal has to be handled by someone authorized to do it.

My landing gear won’t crank. Can you help?

Yes. Stuck landing gear is usually a failed gear box, a bent leg, or no lubrication, and it can usually be repaired or replaced on site.

Do you repair trailer doors?

Yes — hinges, lock rods, cam keepers, and handles on swing doors, plus springs, rollers, and cables on roll-up doors.