Mon–Sat: 8:30 AM–6 PM · Sun: Closed Houston (832) 991-9850
Auto Electrical Service in Houston

Houston Local

4.6 from 46 Google reviews

Auto Electrical Service in Houston

From dead batteries to wiring faults, Joel diagnoses and fixes it right the first visit.

Call or text(832) 991-9850 Request an estimate
  • Mon–Sat: 8:30 AM–6 PM
  • Houston, TX

Hover the car to X-ray itTap a part to X-ray it

What does your car need?

Engine01 / 08 General Mechanic · Motor Mount See 2 services
Brakes02 / 08 Brake Caliper · Brake Rotor See 2 services
Suspension03 / 08 Ball Joint · Control Arm · Shock Absorber +2 See 5 services
Steering04 / 08 Center Bar Link · Idler Arm · Pitman Arm +3 See 6 services
CV Axle05 / 08 CV Axle View service
A/C06 / 08 Auto Air Conditioning · Car AC See 2 services
Electrical07 / 08 Auto Electrical View service
Alignment08 / 08 Wheel Alignment View service
All 21 services Not sure? Call Joel

Overview

Houston Auto Electrical Diagnostics and Repair

Gomez Auto Repair Services handles auto electrical service in Houston at 152 W Mt Houston Rd, six days a week. If your battery keeps dying, your alternator light is on, or something is draining power overnight, call Joel at (832) 991-9850 before you replace parts that may not be the problem. The shop has 46 Google reviews averaging 4.6 stars, and customers consistently note that Joel diagnoses the actual fault rather than guessing at it.

Houston's heat and humidity are genuinely hard on vehicle electrical systems. Batteries corrode faster here than in drier climates, alternators run hotter sitting in traffic on the Southwest Freeway, and older wiring in high-mileage vehicles picks up moisture in ways that cause intermittent faults that are notoriously difficult to chase. The diagnostic process at Gomez starts with a full system scan, battery load test, and charging-circuit check before any part gets ordered. That sequence matters: a battery that tests bad while an alternator is overcharging will fail again in three months if the alternator is not addressed. Electrical repair cost varies widely depending on what failed, how many circuits are affected, and whether the fault is in a component or in the wiring itself. Every job is different -- contact Gomez Auto Repair Services for an accurate estimate.

Joel Antonio Gomez DuarteOwner · answers the phone(832) 991-9850

Electrical Work Handled In-House

No referring out -- these are the electrical jobs the shop diagnoses and fixes directly.

Battery Testing and Replacement

Load testing tells you whether a battery can actually hold voltage under demand. A voltage reading alone does not. Joel tests under load and replaces only when the numbers confirm the battery has failed.

Alternator Diagnosis and Repair

An alternator that undercharges kills batteries. One that overcharges damages electronics. Both show up on the same warning light. The shop checks output voltage and ripple before recommending replacement.

Starter Testing

A slow crank and a no-crank are two different problems. Joel tests the starter, the ignition circuit, and the battery connection before pulling the starter off the vehicle.

Wiring and Harness Repair

Burned connectors, chafed insulation, and corroded terminals are common in Houston vehicles with high mileage. The shop traces faults to the source rather than splicing over a symptom.

Fuse and Relay Replacement

A blown fuse that keeps blowing is a symptom, not the fault. Joel identifies what is overloading the circuit before the fuse goes back in.

Lighting and Accessory Circuits

Headlights, taillights, power windows, and power locks all run through circuits that corrode and fail in this climate. The shop handles both the component and the wiring side of these repairs.

Why Houston Heat Accelerates Electrical Failures

Battery life in Houston averages shorter than the national standard. The combination of extreme summer heat and high humidity accelerates corrosion on terminals and battery plates faster than manufacturers' ratings assume. Extended idling in traffic puts continuous load on the charging system without the cooling benefit of highway airflow. Vehicles in areas near the ship channel and the coast pick up saltwater particulates that corrode ground straps and connector pins over time. Older vehicles in Alief, Gulfton, and the Westheimer corridor often have wiring that was sound at 100,000 miles but becomes brittle and prone to shorting past 150,000. If your car has above-average mileage and you have not had the battery and charging system checked in the last two years, it is worth a diagnostic before you end up stranded. The shop is open Monday through Saturday, 8:30 AM to 6:00 PM -- call (832) 991-9850 to bring it in.
Technician testing car battery voltage with digital multimeter in engine bay

How an Electrical Diagnostic Works Here

Three steps, in order, before any part gets recommended.

  1. System Scan and Visual Inspection

    Joel pulls any stored fault codes and checks fuse boxes, ground straps, battery terminals, and visible wiring for corrosion, damage, or loose connections before any test equipment goes on the vehicle.

  2. Component Testing Under Load

    The battery gets a load test, not just a voltage check. The alternator gets checked for output and ripple. The starter circuit gets tested for voltage drop. Each component is confirmed good or bad with numbers, not guesses.

  3. Repair, Retest, Confirm

    After the repair, the system gets retested to confirm the fault is gone. A vehicle does not leave the shop with an unresolved code or a symptom that showed up during testing. If something else is found, Joel shows you before proceeding.

Owner-Operated, Straight-Talking Service

What you get at Gomez Auto Repair Services.

Joel does the diagnostic himself
The person who answers is the person working on your car.
4.6 stars across 46 Google reviews
Real customers from Houston, verified on Google.
Open Monday through Saturday, 8:30 AM to 6:00 PM
Six days a week -- more access than most dealers.
Se Habla Espanol
Bilingual service, English and Spanish.

Electrical Service Questions

Question not on the list?(832) 991-9850Mon–Sat: 8:30 AM–6 PM · Sun: Closed
What are the most common electrical problems in Houston vehicles?
Battery failure from heat and corrosion is the most frequent. After that: alternators that fail from sustained high-load operation in traffic, corroded ground straps that cause intermittent faults, and blown fuses from wiring that has chafed over high-mileage use. Older vehicles in Houston also develop cracked and brittle insulation that creates shorts during the rainy season when moisture gets into the harness.
How do I know if my battery is failing or if the alternator is the problem?
A battery that is fully charged but dies overnight usually points to a parasitic drain or a weak cell. A battery that runs down during normal driving but tests fine off the car usually means the alternator is not charging. The symptoms overlap, which is why a load test and charging-system check together are the right diagnostic, not just a battery voltage reading. Call (832) 991-9850 and Joel can tell you what to bring in.
Can an electrical fault damage my engine or transmission?
Yes, in specific cases. A failing alternator that overcharges can damage the ECU and sensors. A ground strap that is loose or corroded can cause erratic transmission shift behavior because the TCM loses its reference voltage. Electrical faults that go undiagnosed also trigger fault codes that can mask other issues -- an engine running rich because an O2 sensor circuit has a bad ground, for example.
How long does an electrical diagnostic take?
A straightforward battery and charging-system check takes about 30 to 45 minutes. A wiring fault that is intermittent can take longer because the fault has to be reproduced and isolated. Joel quotes time upfront after the initial scan -- the shop does not leave a vehicle on the lift for hours without telling you what is happening. The waiting area has seating and a TV if you need to stay.
Which electrical symptoms need immediate attention versus which can wait?
Bring it in immediately if the battery warning light is on while driving, the car will not start, lights are flickering while running, or you smell burning plastic near the fuse box or under the dash. Those can strand you or cause a fire. A single blown accessory fuse for a power window or radio can usually wait a few days. If you are not sure, call -- Joel will tell you honestly whether it needs to come in today.
Does Gomez Auto Repair handle electrical work alongside other repairs?
Yes. The shop does general mechanic service alongside electrical work, so if a diagnostic finds both an electrical fault and a mechanical issue, both get addressed in one visit. The same applies if suspension or brake work is due -- brake rotor replacement, wheel alignment, and electrical repairs can be handled together so you are not making multiple trips.
How long does an electrical diagnostic take at Gomez Auto Repair?
A straightforward battery and charging-system check takes about 30 to 45 minutes. A wiring fault that is intermittent can take longer because the fault has to be reproduced and isolated. Joel quotes time upfront after the initial scan and does not leave a vehicle sitting without keeping you informed. The waiting area has seating and a TV if you need to stay on-site.
Which electrical symptoms need immediate attention?
Bring it in immediately if the battery warning light is on while driving, the car will not start, lights are flickering while running, or you smell burning plastic near the fuse box or under the dash. Those can strand you or cause a fire. A single blown accessory fuse for a power window or radio can usually wait a few days. If you are unsure, call (832) 991-9850 and Joel will give you a straight answer.
How much does auto electrical repair cost in Houston?
Cost depends on what failed, how many circuits are involved, and whether the problem is in a component or in the wiring. A battery replacement is on the lower end. A wiring fault that requires tracing and harness repair costs more. Every job is different -- contact Gomez Auto Repair Services for an accurate estimate.

In the field

A look at our work

Automotive technician testing starter motor with multimeter in engine bay during electrical diagnostics
Custom braided wiring harness with color-coded connectors in vehicle engine bay

Electrical Problem? Call Joel Today.

Gomez Auto Repair Services LLC -- 152 W Mt Houston Rd, Houston, TX 77037. Open Monday through Saturday, 8:30 AM to 6:00 PM.

Call (832) 991-9850 Request an estimate

Shop hours

  • Mon 8:30 AM–6 PM
  • Tue 8:30 AM–6 PM
  • Wed 8:30 AM–6 PM
  • Thu 8:30 AM–6 PM
  • Fri 8:30 AM–6 PM
  • Sat 8:30 AM–6 PM
  • Sun Closed
152 W Mt Houston Rd, Houston Directions

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