Electrical Upgrades and Enhancements

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Electrical Panel Upgrades and Electrical Improvements in San Antonio, TX

Many electrical panel upgrades happen after a property's power needs change. A new EV charger, workshop equipment or a home addition can push an older service beyond what it was originally designed to handle. GoGEN Services provides electrical panel upgrades for homes and businesses throughout San Antonio. Our techs can perform the circuit and wiring work needed to support any additional electrical demands.

Before we recommend a panel size, one of our licensed electrician will evaluate your existing panel, review major electrical loads, and any planned additions. That assessment helps us determine whether the current panel can be expanded or whether a full upgrade would be a better long-term option.

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Electrical upgrades and improvements we install in San Antonio

We install upgrades that add capacity and modern features to San Antonio homes and businesses. Here is what each service covers:

✓ Electrical panel and service upgrades

A new panel can replace an aging or undersized one. It can increase how much power your property can pull from the utility. This includes the main breaker box and the service line feeding it.

✓ Added amperage

If your home has outgrown its panel, we can raise its amperage to support more circuits and higher demand. The common move is 100-amp to 200-amp, with 400-amp available for larger properties.

✓ Sub-panel installation

Sub-panels can add circuit space for a garage, workshop, addition, or detached building. Each one runs off the main panel and keeps those areas on their own breakers.

✓ Breaker replacement

We can swap out worn or faulty breakers when the panel itself is in sound condition, which keeps every circuit protected without replacing the whole box.

✓ Replacement of outdated panels

Federal Pacific and Zinsco panels are outdated and known to fail, so we remove them and install a modern panel in their place.

✓ Whole-home surge protection

A surge device at the panel shields appliances and electronics from voltage spikes off the grid or nearby lightning, and one unit covers every circuit in the building.

✓ EV charger circuits and EV-ready panels

We run a dedicated circuit for a Level 2 EV charger and confirm the panel has room for it. If capacity falls short, we upgrade the panel first so the charger runs at full speed.

✓ Lighting upgrades

LED, recessed, and security lighting replace dim or dated fixtures and bring energy use down. We handle the wiring and the fixtures together.

✓ Smart-home and smart-panel wiring

Smart panels and connected devices let you monitor and control circuits, lighting, and energy use from your phone. We wire the panel and the devices to work as one system.

✓ Generator connection

A transfer switch ties a standby or portable generator into your panel so it can power the home during an outage while keeping generator and utility power separated.

✓ Dedicated circuits

Ranges, dryers, air conditioning, and other high-demand equipment run better on their own lines, so we add dedicated circuits sized for each one.

✓ Grounding upgrades

Some older homes lack proper grounding, which protects people and equipment when a fault occurs. We bring the grounding up to current standards during the work.

✓ Solar-ready wiring

Planning for solar later means the panel and wiring have to support it, so we prepare the setup now for a future system to connect to.

✓ Commercial panel upgrades

Offices, shops, and small industrial spaces often need more capacity as equipment is added, and we upgrade commercial panels and service to match the building's power needs.
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When we recommend a panel or service upgrade

After an on-site assessment, we recommend an upgrade in a few common situations. A panel that runs on fuses or sits at 60 or 100 amps usually needs more capacity for how homes draw power today. Breakers that trip often, or a panel that feels warm to the touch, point to a system working past its limit. We flag Federal Pacific and Zinsco panels for replacement on sight because they are outdated and prone to failure.

We also recommend an upgrade when you are adding load. An EV charger, central air conditioning system, workshop, kitchen remodel, or standby generator can add more electrical demand than an older panel was designed to handle. In some cases, the panel runs out of capacity. In others, there is simply no room left for the additional circuits. The appropriate panel size depends on the existing electrical load and any equipment planned for the future.

Amperage we can install: 100, 150, 200, and 400 amps

We install panels at four capacity levels and match the amperage to how your property uses power.

  • 100 amps suits smaller homes with modest electrical demand, though most San Antonio homes have moved past it.

  • 150 amps fits mid-sized homes that need more room than a basic panel without a full jump to 200.

  • 200 amps is the level we install for most San Antonio homes, with space for an EV charger, central air, and added circuits.

  • 400 amps covers large homes and properties running several high-demand systems at once.

We base the recommendation on a load check, measuring what your home draws now and what you plan to add. That keeps your capacity matched to the property today and as you add to it later.

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Why San Antonio homeowners choose GoGEN for Electrical Panel Upgrades?

✓ 24/7 emergency availability

Electrical problems such as sparking equipment, burning odors, partial power loss, or a panel that is hot to the touch should not be ignored. For situations that cannot safely wait until normal business hours, our San Antonio team is available 24/7.
Discounts available:
We offer a 10% discount to military, teachers, and first responders.

✓ Financing available

Qualified customers can finance their upgrade and spread the cost over time. We go over the options during your free on-site assessment.

✓ Licensed and insured

GoGEN is a licensed electrical contractor and fully insured, with a master electrician overseeing every panel and service upgrade from assessment through final testing.

How our electrical panel upgrade process works

Every electrical panel upgrade in San Antonio follows the same steps from first visit to final check:

✓ On-site assessment

We send out one of our licensed electrician to review your current panel, your power use, and what you want to add, then we run a load check to size the new system.

✓ Written estimate

We give you a clear scope and price before any work starts, so you know what the upgrade includes.

✓ Scheduling

We can set a date that works for you and handle the arrangements to switch the power off and back on, so you are without electricity for as little time as possible.

✓ Installation

We can remove your old panel and install a new one. We would connect and label every circuit so the system is organized and safe.

✓ Testing and walkthrough

We test your panel's under load, confirm each circuit works, and can walk you through the finished setup before we leave.

Frequently asked questions about electrical panel upgrades in San Antonio

There are a few common signs to look for when deciding if you need an electrical panel upgrade. If your breakers trip often, a panel that is running realtively high for your panel's max amps, and especially if your panel feels warm. We offer on-site assessments that can allow professional electricians confirm if an electrical panel upgrade is necessary.

Common signs usually include breakers that trip often, a fuse box, a panel running at 60 or 100 amps, or a panel that feels warm. You may need a panel upgrade before adding additional appliances like an EV charger. An on-site assessment can help our techs to confirm whether an upgrade is right for your home.
It can depend on a few factors. Your home's current setup, the amperage you need, and if it requires any added wiring. Because every property is different, we offer on-site assessment and a written estimate before work begins, so you know the full price upfront with no surprises.
We can complete most residential panel upgrades in a single day. Larger homes, higher amperage, or additional wiring can extend the timeline. After our on-site assessment, we can give you a clear schedule so you know how long your home will be without power and when the work will finish.
For most San Antonio homes, 200-amp service can have enough capacity for central air, an EV charger, and added circuits. Larger homes or properties running several high-demand systems may need 400 amps. Our technicians can size the right amperage during our assessment, based on what you use now and what you plan to add.
Federal Pacific and Zinsco panels are considered outdated and are known to fail, which is why electricians usually flag them for replacement. Breakers in these panels may not trip when they should. If you have one, we can replace it with a modern panel during your upgrade.
Yes, we have to switch your power off while we replace the panel, because our team cannot work safely on a live system. We try to keep the outage as short as possible, so that your homes are back to full power the same day.
Often, yes. A Level 2 EV charger can draw a large amount of power, and an older or smaller panel may not have room for it. We would check your panel's capacity first and upgrade it only if needed, so that your charger can run at full speed.
An upgrade can increase your panel's amperage to add capacity, while a replacement can swap an aging or unsafe panel without necessarily raising the amperage. During our assessment, we will tell you which one your home needs based on its condition and your power demands.

Schedule your San Antonio electrical panel upgrade

Adding capacity to your home or business starts with a free on-site assessment. A licensed electrician will size the right upgrade and give you a written estimate before any work starts. Financing is available for qualified customers, and we will beat any written estimate.

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Reach out now and let’s power your next project. Request your free estimate today — no obligation, just solutions built for you.
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