Can You Upgrade From 100-Amp to 200-Amp Service? A Houston Homeowner's Guide

You can absolutely make this change. An electrical panel upgrade in Houston takes your home from 100-amp to 200-amp service. It is a common job in older homes that have outgrown their original power.

The upgrade doubles the capacity your home can safely use. That means more room for AC, appliances, and modern devices. You stop fighting a system that was built for a simpler time.

Here is one thing many people miss. You cannot reach 200 amps by swapping the panel alone. The meter, the service wire, and the utility feed must all support the higher load.

That is why we check your whole setup first. We look at your panel, your meter, and the wire coming to your home. Then we tell you what your specific upgrade will need. For guidance on how home electrical systems and panel capacity are regulated, see the National Electrical Code maintained by the NFPA.

Your home often warns you before a panel fails. These signs point to a system that cannot keep up. Watch for them in your daily routine.

Breakers trip often. If you reset breakers a lot, your panel is overloaded. A main breaker that trips is an even bigger warning.

Lights flicker or dim. Do your lights dip when the AC or a big appliance starts? That points to a strained system.

Your panel uses fuses. Old fuse boxes were not built for modern loads. They are a clear sign you have outgrown your service.

The panel feels warm. A warm panel, buzzing sounds, or scorch marks mean trouble. A burning smell means you should call us right away.

You depend on power strips. A full panel with no open slots forces you to overload outlets.

One sign may be a small fix. Several together suggest your home needs more power.

Big home upgrades draw a lot of power. A 100-amp system can struggle to keep up. Here are the additions that often call for more capacity.

• Central AC or a heat pump. Cooling a Houston home pulls heavy power, especially in summer.
• An EV charger. Charging a car at home adds a large, steady load to your panel.
• A pool, hot tub, or tankless water heater. These draw serious power and can max out an older system.
• A home addition or new kitchen. More rooms and an electric range mean more circuits and more demand.
• Garage shop tools. A workshop with saws, compressors, or welders needs power your old panel may lack.

Adding any of these to a 100-amp home can tip it over the edge. We help you plan the upgrade before you install the new load.

Thinking about one of these projects? Talk with our Houston electricians first.

A service upgrade has several parts that work together. Knowing the steps helps you plan with no surprises. Here is what the job looks like.

• A load calculation. We figure out how much power your home really needs. This confirms the right size for your new service.
• New equipment. We install a new 200-amp panel, breakers, meter socket, and service wire. We also update your grounding system.
• A permit. We pull the proper permit before any work begins. This keeps your home up to code.
• Utility coordination. We schedule the power shutoff with your utility. Your power stays off for about half a day.
• A city inspection. An inspector checks the work before power returns. The utility will not reconnect until it passes.

Most upgrades take about a day. We handle the permit and the inspection for you, so you do not have to chase paperwork.

A service upgrade is high-voltage work. The risks are real, and mistakes can be deadly. This is one job you should never do yourself.

Shock and fire risk. Working inside a panel and at the meter can cause severe shock or a house fire.

Insurance and permits. Skipping a licensed pro or a permit can void your home insurance after an electrical fire.

Code and wire sizing. The panel, wire size, and grounding must meet code. We follow the National Electrical Code and local Houston rules.

A load calculation also tells you if you truly need the upgrade. Sometimes you do, and sometimes a smaller fix is enough. We give you an honest answer, with no pressure to buy more than you need.

When you are unsure, a quick inspection settles it. We check your system and explain your best path forward.

A panel that cannot keep up is stressful and unsafe. You do not have to sort it out alone. Let our Houston team check your system and recommend the right fix.

We serve homes across Houston, from The Woodlands to Spring and Kingwood. Our electricians inspect your panel, explain your options, and handle every permit. Whether you need a full upgrade or a smaller repair, we get it done safely.

We answer the phone day and night, every day of the year. Call (713) 812-7070 to schedule your panel inspection today.