San Marcos, TX

Mobile RV Electrical Repair in San Marcos, TX

Careful 12V and 120V fault tracing, converter and inverter repair, battery system service, and shore-power troubleshooting at your site.

Call (830) 402-5300 Request Service

Mobile service, a local pro comes to your rig
Written quote before any work starts
Emergency service available
Serving campsites, storage lots, and driveways

RV electrical problems build on each other. A failing converter can cook a battery bank. A corroded shore-power connection can brown out the whole coach. One loose chassis ground can make every light flicker. Chasing these faults takes a multimeter and a careful process, not just swapping parts. A local pro follows the power path from the pedestal through the transfer switch, converter, and panel, out to the affected circuit.

Common on-site repairs include converter and inverter replacement and transfer switch service. Local pros also handle shore-power inlet and cord-end replacement, battery testing and replacement, ground-fault work, and 12V circuit tracing for lights, slides, jacks, and tank sensors. Every repair ends with a written voltage-drop and load test. That way the fix is proven under real demand.

RV Electrical Repair in San Marcos specifically

Rigs coming off months on unpowered TX-21 lots arrive with dead, sulfated batteries and converter faults. First-weekend power failures are a local pattern here.

Local conditions behind this pattern: long triple-digit summers with high humidity near the river.; strong spring thunderstorms and hail along i-35..

A local pro fixes it right where you camp. No towing and no waiting in a shop.

Symptoms owners describe

Breakers trip at the pedestal or inside the coach
Lights flicker or dim when appliances start
Batteries drain overnight or never reach a full charge
Outlets are dead on one side of the rig
A burning smell near the panel or shore cord

How the diagnosis works

Check pedestal voltage, polarity, and ground before connecting
Test voltage drop across the shore cord, inlet, and transfer switch
Check converter output and charge profile
Battery load testing and slow-drain measurement
12V fault tracing, one circuit at a time

How the repair typically goes

Replace heat-damaged shore inlets, cord ends, and lugs
Replace failed converters with the right rated, profile-matched units
Service or replace the automatic transfer switch
Repair chassis grounds and corroded connections
Load-test the repaired path and write down the readings

Repairable at your site

Converter, transfer switch, inlet, and battery replacement
12V and 120V fault tracing and connection repair
Reproducing pedestal-specific and load-based faults

When a shop or dealer is required

Full coach rewiring after a fire or major rodent damage
Chassis harness repairs that need lift access
Insurance tear-downs that need body panels removed

Parts commonly involved

Converters and inverter/chargers
Automatic transfer switches
Shore-power inlets and cord ends
Deep-cycle and lithium batteries
Fuses, breakers, and bus bars

What affects the price

Every visit starts with diagnosis and a written quote before repair work begins. These factors move the number:

How long it takes to find the fault
Parts (converter or inverter class and battery type)
How hard the wiring is to reach
Whether repairs need return visits with ordered parts

How much does mobile RV Electrical Repair cost in San Marcos, TX?

Most mobile RV Electrical Repair in San Marcos, TX runs $150 to $700 for most 12V and shore-power faults. On-site labor typically runs $120–$175 per hour, with a service call of $95–$150, credited toward the repair. Simple fixes cost the least. The final price depends on parts, roof or slide access, and your rig make and model. These are rough ranges, not a quote. Every visit starts with an on-site check and a written quote before any work.

Diagnose and repair a dead circuit or outlet: $150–$400
Converter or inverter replacement (parts + labor): $350–$900
Transfer switch or breaker replacement: $250–$600
Rewiring or connector repair: $200–$500
On-site labor rate: $120–$175 per hour
Service call / diagnostic: $95–$150,credited toward the repair

Want a real number for your rig? Call (830) 402-5300 and tell us what it is doing. You get a written quote before any work begins.

Dispatch coverage in San Marcos

Mobile service dispatches to campsites, storage lots, and driveways within roughly 25 miles of San Marcos, including areas along I-35, TX-80, TX-21.

RV locations local pros commonly serve

Canyon Trail RV Park : Full-hookup RV resort at 6050 S I-35 frontage road with a fishing pond.
San Marcos Springs RV Park : Full-hookup pull-through RV park at 1334 N I-35 off the access road.
Schatziland RV Resort : Large RV resort at 3169 Florence Street just off I-35.
Pecan Park Riverside RV Park : Riverfront RV park and cabins at 50 Squirrel Run on the San Marcos River.
Blind Salamander RV Park : 40-space riverfront RV park at 2025 N Old Bastrop Highway on the San Marcos River.
Storage Sense San Marcos : Self-storage with RV, boat, and vehicle spaces at 1900 Old Ranch Road 12.
River Road Storage : Gated self-storage with RV and boat parking at 880 River Road.
TGI Storage San Marcos : Fenced, gated self-storage with RV and boat storage in San Marcos.

These are some of the RV spots local pros get called to most. They are not limited to them. A local pro also comes to any other campsite, storage lot, or driveway in the area.

Access notes

Riverside park lanes are tight in peak season. For some calls a local pro parks at the park office.
Storage-lot calls need a gate code or the owner there, set up ahead of time.

RV Solar Repair
Local pros test and fix RV solar systems, from panels and charge controllers to wiring and batteries. They also install right-sized upgrades at your site.
RV Generator Repair in San Marcos
Mobile diagnostics for onboard RV generators. Local pros service no-start, surging, shutdown codes, fuel delivery, and output faults right where the rig sits.
RV A/C & Heating Repair in San Marcos
Mobile diagnosis and repair for rooftop air conditioners, heat pumps, and RV furnaces. Local pros service capacitors, fan motors, control boards, and ignition systems on-site.

Nearby service areas

Frequently asked questions

Is it safe to keep using my RV with an electrical problem?

It depends on the symptom. Flickering lights or one dead outlet can usually wait for a scheduled visit. Some signs are more serious. A burning smell, a warm shore-power plug, or breakers that keep tripping are warnings. Unplug from the pedestal and stop using those circuits until a local pro finds the fault. Those signs mean heat is building at a bad connection.

How is mobile RV repair priced?

You pay a service-call fee that covers travel and diagnosis. Then you pay for parts and labor on the repair you approve. A local pro gives you the diagnosis and a clear quote before any repair work starts. A pro never works on an open-ended okay. A few things change the price. Those are the part type, how hard the access is, and the size of the repair. Each service page explains this.

How quickly can a local pro get to me?

It depends on a few things. Your spot in the service area matters. So does how busy local pros are and whether your problem is an emergency. A local pro books scheduled visits for a time window and puts emergency calls first by safety. When you call, we take your request and share a real ETA from the pro instead of a blanket promise. We also follow up with you if the schedule changes.

Looking for the general service overview? See RV Electrical Diagnostics & Repair, or everything available in San Marcos.

Need rv electrical repair in San Marcos?

Call for honest phone triage, or send a service request and dispatch will follow up with a realistic window.