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Verified Reviews for Generator Install pros in Marion, TX

*The Angi rating for Generator Install companies in Marion, TX is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Marion, TX is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on March 19, 2026

Find Generator install pros in Marion

Avatar for Hillside Electric LLC
Hillside Electric LLC
5.0(
14
)

Serving Marion, TX and surrounding areas

Approved

In business since 2023

Free estimates

Offers commercial services

"I would recommend Robbie for any kind of electrical work from new construction to remodel He saved me money wiring my house for backup generator service"
kitchen
living and kitchen
living room
Electrical panel rough in
Electrical Rough in

+3

Response time7 hrs
Recommended by78%of homeowners
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Blackthorn Electric LLC
4.9(
8
)

Serving Marion, TX and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Emergency services offered

"Ronnie was great with handling everything made me fill at ease i would highly recommend this company to anyone looking for a great electrician he was the only one out of 5 company that gave me a honest price I am happy that i use Blackthorn electric THANKS"
AUTOZONE
AUTOZONE
Response time3 hrs
12 neighbors recently requested a quote
Recommended by75%of homeowners
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South Texas Source Electrical Contracting
5.0(
5
)

Serving Marion, TX and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"South TX Electrical has great customer service. Lazaro was timely and efficient. I was very happy with the quality of work and the attention to detail. He was very thorough and explained everything to include process and materials. I feel confident that the work was done correctly and with the best quality."
2 neighbors recently requested a quote
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Avatar for Bowen Electric Co.
Bowen Electric Co.
4.5(
2
)

Serving Marion, TX and surrounding areas

Approved

In business since 1955

Free estimates

Emergency services offered

Bowen Electric has been a leader in Central Texas by lighting the way since 1955. We are a locally owned and family operated company that values honesty and integrity. We treat your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guaranteeing your satisfaction!

Response time1 day
Response rate100%
1 neighbors recently requested a quote
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Generator Install questions, answered by experts

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

These advanced generators use a key fob or a smartphone app to remotely start, which is ideal for getting power back on immediately without venturing outside. This feature is more common on whole home generators, but you may be able to find it on large portable generators, too.

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

In most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home generators. A permit for a generator usually costs between $50 and $250, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you—and might be required to do so by your building department—but you’ll be on the hook for the cost of the permit. You should ask your installer before agreeing to any work if they will pull the necessary permits for your project.

Portable generators provide backup power for essential appliances during outages and are easy to relocate.

The Marion, TX homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.

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