--- title: "Trailer Wiring Repair Morris County NJ | Full Harness and Connection Repair" description: "Trailer wiring problems? Shorts, ground faults, harness damage. Wiring repair in Morris County NJ. Mobile service. Call 973-651-1045." lang: en json-ld: | { "@context": "https://schema.org", "@type": "Service", "serviceType": "Trailer Wiring Repair", "provider": { "@type": "LocalBusiness", "name": "Keep Them Rolling Trailer Repair", "telephone": "973-651-1045", "email": "Keepthemrollingtrailerrepair@gmail.com", "address": { "@type": "PostalAddress", "addressLocality": "Morris County", "addressRegion": "NJ", "addressCountry": "US" } }, "areaServed": [ { "@type": "AdministrativeArea", "name": "Morris County, NJ" }, { "@type": "AdministrativeArea", "name": "Sussex County, NJ" }, { "@type": "AdministrativeArea", "name": "Warren County, NJ" }, { "@type": "AdministrativeArea", "name": "Hunterdon County, NJ" } ] } --- [![Keep Them Rolling Trailer Repair logo](/assets/logo-v9jHZR-C.webp)](/) [Home](/)[Services](/services)[About Us](/about)[Contact](/contact) [Call 973-651-1045](tel:9736511045) [Home](/)[Services](/services)[About Us](/about)[Contact](/contact)[Call 973-651-1045](tel:9736511045) ![Technician tracing and repairing trailer wiring harness with exposed wires and connectors visible](/assets/hero-wiring-repair-B5mXM2hQ.jpg) [Home](/)/ [Electrical and Lighting Services](/electrical-and-lighting-services)/ Trailer Wiring Repair # Trailer Wiring Repair in Morris County NJ — Fix the Shorts, Faults, and Failures in Your Trailer Wiring Bad wiring causes lights to fail, brakes to malfunction, and electrical fires. We trace the problem and fix it right. [Call Now 973-651-1045](tel:9736511045)[Get Free Estimate](/contact) 30+ Years Experience Family Owned & Operated Mobile Service to Your Door Only High Quality Parts Trailer wiring problems are frustrating. Lights that flicker, fuses that blow for no reason, or a complete electrical failure that leaves your trailer dark on the highway. Bad wiring is not just an inconvenience. It is a safety hazard and a ticket waiting to happen. Keep Them Rolling Trailer Repair provides mobile trailer wiring repair across Morris County NJ. We trace the fault, fix the problem, and make your connections weatherproof so they last. ## When You Need Trailer Wiring Repair Flickering lights are usually the first sign of a wiring problem. If your tail lights, brake lights, or turn signals work sometimes and fail other times, you likely have a corroded connection or a broken wire somewhere in the harness. Blown fuses point to a short circuit that needs to be found and repaired before it causes worse damage. Intermittent electrical issues that come and go are almost always caused by loose or corroded ground connections. Melted wires mean something is drawing too much current and that is a fire risk. Rodent damage is surprisingly common on trailers that sit in storage. Mice and squirrels chew through wire insulation and create shorts throughout the harness. If rewiring fixes the power but your lights are still dim, consider our [lighting repair and LED conversion service](/light-repair-and-led-light-upgrades). ## Our Trailer Wiring Repair Process We start with a full visual inspection of the wiring harness, looking for obvious damage, melting, or corrosion. Then we use circuit testing equipment to check every lighting and brake circuit for continuity, proper voltage, and ground integrity. When we find the fault, we repair the damaged section using marine grade wiring and heat shrink connectors that resist moisture and salt corrosion. If the damage is extensive, we can replace the entire wiring harness. Every connection we make is weatherproofed and secured properly inside the trailer frame. We test every circuit after the repair to make sure everything works perfectly before we leave. Wiring problems sometimes start at the plug. We also handle [connector and plug repair for truck to trailer](/connector-and-plug-repair) connections. ## Trailer Wiring Repair Cost in Morris County Wiring repair costs depend on the extent of the damage. A single corroded ground connection is a quick, affordable fix. A partial harness repair covering a specific section costs more depending on how many feet of wire need replacement. A full harness replacement is the most involved job but sometimes it is the smartest option on an older trailer with multiple wiring failures. We always give you an upfront quote before starting work. No hidden charges. Fleet customers with 3 or more trailers save 10% on every service call. ## Why Choose Keep Them Rolling We have over 30 years of experience chasing down trailer wiring faults. We know where to look, what to test, and how to make repairs that hold up against New Jersey weather. This is a family owned business. Our mobile service brings professional wiring diagnostics right to your location. We use marine grade components because standard electrical tape and butt connectors do not survive NJ salt and moisture. We are open 7 days a week, 7AM to 7PM. We service commercial fleets and personal trailers. Stop guessing about your trailer wiring. Call 973-651-1045 and we will come to your location, find the problem, and fix it right. Mobile wiring repair across Morris County and the surrounding areas. [973-651-1045](tel:9736511045) [Call Now](tel:9736511045)[Get Free Estimate](/contact) Open 7 Days a Week, 7AM to 7PM Wiring is just the start. See [our electrical and lighting repair services](/electrical-and-lighting-services) for everything we fix in your trailer's electrical system. Visit our full [trailer repair services in Morris County NJ](/) to see everything we offer. ### Keep Them Rolling Trailer Repair - [973-651-1045](tel:9736511045) - [Keepthemrollingtrailerrepair@gmail.com](mailto:Keepthemrollingtrailerrepair@gmail.com) - 7AM–7PM, Monday–Sunday #### Quick Links - [Home](/) - [Services](/services) - [About Us](/about) - [Contact](/contact) - [Mobile Trailer Repair](/mobile-trailer-repair-and-roadside-service) #### Our Services - [Brakes and Suspension](/brake-and-suspension-services) - [Electrical and Lighting](/electrical-and-lighting-services) - [Structural and Welding](/structural-and-welding-services) - [Hydraulics](/hydraulic-services) - [Doors, Panels and Enclosures](/door-panel-and-enclosure-services) - [Wheels, Tires and Alignment](/wheel-tire-and-alignment-services) - [Couplers, Hitches and Towing](/coupler-hitch-and-towing-components) - [Inspections and Maintenance](/inspection-and-maintenance-services) #### Service Areas [Morris County](/trailer-repair-morris-county-nj) [Sussex County](/trailer-repair-sussex-county-nj) [Warren County](/trailer-repair-warren-county-nj) [Hunterdon County](/trailer-repair-hunterdon-county-nj) [Facebook](#)[Google](#) © 2026 Keep Them Rolling Trailer Repair. 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