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Our Services

From a fault code read to a full electrical installation. We cover the range of jobs that commercial vehicle operators across Lancashire and Manchester actually need doing.

HGV Diagnostics & Repairs

Find the fault. Fix it properly. Move on.

We cover a wide range of makes and models: Volvo, DAF, MAN, Mercedes, Scania, Iveco, Renault and more. The diagnostic equipment gets connected, the live data gets read, and the actual fault gets identified before anything is touched. You won't be billed for exploratory work that leads nowhere.

  • Multi-brand diagnostic software

    Compatible with all major HGV manufacturers. We read what the vehicle is actually telling us.

  • Less time off the road

    Getting the diagnosis right first time means fewer return visits and faster turnaround.

  • Mechanical & electronic repairs

    Engine faults, body electronics, wiring issues. We carry out the repair, not just the diagnosis.

  • Plain English feedback

    We'll tell you exactly what was found, what was done, and why. No jargon.

Full Service Details
Diagnostic scan tool plugged into an HGV in the workshop, JG Technical Ltd

Electrical Installations

You imagine it. We build it.

Tell us what you need and we'll work out how to make it happen. We've wired up everything from single-vehicle lighting rigs to complex split charge systems on double-deck trailers. Horseboxes, curtainsiders, flatbeds. If you operate it commercially across Lancashire or Manchester, we've probably worked on something similar.

  • Custom lighting installations

    LED work lights, marker lights, emergency lighting, designed and fitted to your spec.

  • Split charge & leisure battery systems

    Run fridges, tail lifts, and ancillary equipment without pulling down your starter battery.

  • Warning & safety systems

    Reversing cameras, proximity sensors, audible alarms and safety cut-offs fitted properly.

  • Full wiring from scratch

    New builds or complete rewires, tidy, correctly rated, and protected against the elements.

Full Service Details
Electrical wiring being installed inside a commercial vehicle trailer
Battery load test being carried out on an HGV charging system

Battery & Charging

Don't get caught out on a cold morning.

A flat battery on a working vehicle is one of those problems that always seems to happen at the worst possible time. We carry out proper load testing, not just a voltage check, so you know whether the battery is on its way out or whether the alternator is the real culprit. We also supply and fit replacements.

  • Battery health & load testing

    Tested under realistic load conditions, not just sat on a meter with the engine off.

  • Alternator & charging system diagnostics

    Find out why the battery keeps going flat before spending money on a replacement it doesn't need.

  • Supply & fit

    We source and fit the right battery for the application. No guessing.

  • Pre-winter checks

    Worth doing before the temperature drops. A battery that's borderline in October won't make December.

Key programming equipment connected to a commercial vehicle

Key Programming

New key. Linked up. Ready to go.

Replacement or additional keys for HGVs need programming to the vehicle's immobiliser before they'll work. We handle that on-site, for all the major makes and models. One thing worth checking before you call: the battery in the key fob itself. It sounds too simple, but it accounts for more call-outs than you'd expect.

  • Immobiliser programming

    Full learn procedures carried out correctly for all major HGV makes.

  • Remote & transponder keys

    Central locking remotes and chip keys programmed while we're with the vehicle.

  • Lost key situations

    We can programme new keys even where the original has been lost.

  • Done in a single visit

    In most cases the programming is completed there and then. No waiting around.

Welding & Body Repairs

Sorted. Properly.

Cracked chassis members, broken welds, damaged body panels, trailer side repairs: these are the kind of jobs that need doing correctly, not quickly. We carry out structural and fabrication work to the standard needed to keep the vehicle road-legal and passing its next inspection without issue.

  • MIG & MMA welding

    Steel, aluminium and stainless steel, for structural and general fabrication.

  • Trailer body repairs

    Side boards, headboards, tail frames, floor repairs: we deal with the lot.

  • Chassis & sub-frame repairs

    Structural repairs done properly, not patched over until the next inspection.

  • Custom fabrication

    Brackets, mounts, guards and modifications built to suit your specific operation.

Full Service Details
MIG welding repair on a commercial vehicle trailer chassis

Tail Lifts & Moving Decks

Get it lifting again.

Tail lifts and moving decks work hard and eventually something gives: electrical fault, burnt-out motor, worn pin, seized pulley. When that happens, you need it sorted quickly. We also carry out LOLER thorough examinations and preventative maintenance to help avoid the problem in the first place.

  • LOLER thorough examinations

    Statutory inspections carried out correctly and documented as required.

  • Electrical fault finding & repair

    Control box faults, wiring issues, solenoid and switch problems diagnosed and fixed.

  • Motor & pump replacement

    Hydraulic motors and pumps supplied and fitted, back to working order.

  • Preventative servicing

    Greasing, pin replacement, adjustments: the regular work that prevents the expensive failures.

Full Service Details
Tail lift mechanism on a commercial vehicle during servicing
Car diagnostics and repair work by JG Technical Ltd

Car Repairs

Your car, looked after properly.

We now offer car repair services alongside our commercial vehicle work. Whether it's a diagnostic check, an electrical fault, or a mechanical repair, we bring the same straight-talking approach. No unnecessary work, no inflated estimates. Just the job done right.

  • Fault diagnostics

    We plug in, read the actual fault, and explain what it means before anything gets touched.

  • Electrical repairs

    Warning lights, wiring faults, sensor replacements. Diagnosed and fixed properly.

  • Mechanical repairs

    Brakes, suspension, engine work and general repairs carried out to a proper standard.

  • Honest advice

    We'll tell you exactly what the car needs and what it doesn't. No padding.

Diesel particulate filter cleaning on a light commercial vehicle

DPF Cleaning

Restore performance. Clear the filter.

A blocked diesel particulate filter will trigger warning lights, reduce performance, and if left long enough, result in an expensive replacement. We offer professional DPF cleaning as a cost-effective alternative, using specialist equipment to clear the blockage and restore the filter to working condition.

  • Professional cleaning process

    Specialist DPF cleaning equipment, not DIY products or short-cut methods.

  • Restore engine performance

    A cleaned DPF means better fuel economy, fewer forced regeneration cycles, and warning lights off.

  • Cars and light commercials

    We carry out DPF cleaning on passenger cars and light commercial vehicles.

  • Cost-effective alternative to replacement

    DPF replacement is expensive. Cleaning resolves most blockages at a fraction of the cost.

Need a hand with any of this?

Call us, send a message, or use the contact form. We'll give you a straight answer on what's needed and what it's likely to cost.

Call Now: 07899947762