San Antonio Electrician — 78240
78240 is the ZIP code for San Antonio in Bexar County, Texas. Electricians working this route handle everything from a dead outlet in a 1950s bungalow to a 200-amp service upgrade for a new heat pump, and the price of those two jobs is not close.
If the symptom is a burning smell, sparking, smoke or water contacting live wiring, treat it as an emergency and cut the circuit at the panel. Everything else is a scheduling question rather than a safety one.
Free referral service · no charge for the call · written quote before any work starts
- Written quotes before work starts, with a flat price per task rather than an open hourly meter.
- No obligation: get the number, compare it, and decide on your own schedule.
- Free phone triage: describe the symptom and find out whether it is urgent or can wait.
- Licensed electricians only — ask for the licence number and confirm it before work begins.
- Insurance and workers’ compensation verified before anyone arrives at your property.
Electrical work local to 78240
San Antonio is served by licensed electricians working across 83 ZIP codes and 2 counties. The city page for San Antonio lists every covered ZIP, and each service page explains what the job involves and what drives the price.
What people in San Antonio call about
- Scorch marks, discoloured faceplates or a warm wall plate
- A breaker trips again within minutes of being reset
- Someone in the home depends on powered medical equipment
- Insurance or a warranty claim that asked for surge protection
- Modern appliances with sensitive control boards everywhere
- Breakers of a brand no longer manufactured, so no replacement is available
- A home office, home theatre or workshop with expensive equipment
If any of those are happening now, treat the circuit as suspect: switch it off at the panel and have it tested rather than resetting a breaker repeatedly.
200 Amp Service Upgrade in San Antonio — what it costs
Increase household electrical capacity from 100 amps (or 60) to 200 amps so EV chargers, heat pumps, induction ranges and additions all run without tripping.
| Work | Typical range | Notes |
|---|---|---|
| 100A to 200A overhead service upgrade | $1,800 – $3,500 | Most common configuration |
| 100A to 200A underground service upgrade | $2,400 – $4,500 | Trenching and conduit add cost |
| 200A to 400A service upgrade | $4,500 – $9,500 | Large homes, dual panels, heavy EV load |
| Meter base and mast replacement | $400 – $1,400 | Required when components are damaged |
| Load calculation and permit package | $150 – $600 | Often bundled with the upgrade |
Duration: typically 1-2 days. Full 200A Service Upgrade guide for Texas.
Services available in 78240
Outlet, Switch & Receptacle Installation
$120 – $500Recessed & LED Lighting Installation
$150 – $900Electrical Panel Replacement
$1,300 – $4,000Whole-House Surge Protection
$300 – $900Smoke & CO Detector Installation
$100 – $800200 Amp Service Upgrade
$1,800 – $4,500Circuit Breaker Replacement & Repair
$150 – $600Aluminum Wiring Repair
$300 – $9,00024/7 Emergency Electrician
$150 – $850What moves the price in San Antonio
Things that lower it
- An existing circuit that can carry the new load
- Open access — attic, basement or crawlspace runs
- Bundling several small jobs into one visit
- Spare breaker positions already in the panel
Things that raise it
- Fishing new cable through finished plaster or drywall
- A panel that is full, undersized or a recalled brand
- Permitted work with inspection and utility coordination
- Damaged service entrance, meter base or mast
Local notes for 78240
- Located in Bexar — the authority that issues electrical permits for this address.
- Time zone: Central — emergency and after-hours availability follows local time.
- 83 ZIP codes inside this service area.
- Service radius is local: the crew dispatched is working in this area, not travelling from out of state.
Map of the San Antonio service area
Amber marker: San Antonio, TX 78240. Blue markers: nearby covered cities. The shaded ring shows a typical 15-mile local service radius — actual dispatch areas vary by contractor.
Nearby ZIP codes
Adjacent ZIP codes with licensed coverage. If your address sits on a boundary, either ZIP works.
Electrician FAQ for 78240
How quickly can someone get here?
Timing depends on the local contractor schedule and the nature of the call. Genuine emergencies are usually prioritised, often with same-day or overnight response, while planned work is typically scheduled within days rather than hours.
Is 24/7 emergency service available for 78240?
Emergency requests are taken around the clock. Central time applies locally, and after-hours availability depends on the contractor on duty — genuine emergencies such as burning smells, smoke, sparks or water contacting live wiring are prioritised over routine work.
Can the electrician tell me the price over the phone?
For defined jobs — a charger install, a panel replacement, a ceiling fan on a known ceiling height — a ballpark number is reasonable. For a fault that has not been diagnosed, any honest contractor will explain that the cause determines the price, and will quote the diagnostic first.
Do you charge for estimates?
Many contractors give a free estimate on planned work such as a panel replacement, charger install or rewire, while diagnostic visits for an unknown fault usually carry a trip fee that is often credited toward the repair. The exact policy varies by contractor, and it should be confirmed on the phone before anyone travels.
Which county handles electrical permits for 78240?
This ZIP sits in Bexar County, Texas. Permit and inspection requirements for panel changes, service upgrades and new circuits are set locally, so confirm with the contractor whether a permit is required for your specific job and who is filing it.
Do you have electricians covering the 78240 ZIP code?
Yes — 78240 (San Antonio, Texas, Bexar County) is inside the coverage network, and requests from this ZIP are routed to licensed electrical contractors working the San Antonio area. Give the dispatcher the ZIP and the street so they can confirm the visit window.
What does an electrician charge in San Antonio, TX?
Expect the same structure as the national market: roughly $50-$150 per hour for licensed residential work plus a trip fee of about $75-$200, with most common jobs priced flat-rate per task. Local labour rates in Texas move the national ranges by roughly 10-25% either way, and panel capacity work starts around $1,300 and rises from there.
Other ZIP codes in San Antonio, TX
83 covered ZIP codes in San Antonio. Jump straight to the one closest to your address.
- 78201
- 78202
- 78203
- 78204
- 78205
- 78206
- 78207
- 78208
- 78209
- 78210
- 78211
- 78212
- 78213
- 78214
- 78215
- 78216
- 78217
- 78218
- 78219
- 78220
- 78221
- 78222
- 78223
- 78224
- 78225
- 78226
- 78227
- 78228
- 78229
- 78230
- 78231
- 78232
- 78233
- 78235
- 78237
- 78238
- 78239
- 78240
- 78241
- 78242
- 78243
- 78244
- 78245
- 78246
- 78247
- 78248
- 78249
- 78250
- 78251
- 78252
- 78253
- 78254
- 78255
- 78256
- 78257
- 78258
- 78259
- 78260
- 78261
- 78263
- 78264
- 78265
- 78266
- 78268
- 78269
- 78270
- 78278
- 78279
- 78280
- 78283
- 78284
- 78285
- 78288
- 78289
- 78291
- 78292
- 78293
- 78294
- 78295
- 78296
- 78297
- 78298
- 78299
Need an electrician in San Antonio 78240?
Free phone triage: describe what is happening and find out whether it needs a visit today or can be scheduled. No obligation, no charge for the call.
Call (619) 877-0478Call (619) 877-0478 any time. Ask for the licence number, the trip fee and a flat price for the job.
Nationwide Electrician is a free referral service connecting San Antonio homeowners with licensed electrical contractors. We do not perform electrical work and we do not set the prices contractors charge. Coverage data for 18,671 US ZIP codes, last verified September 23, 2026.