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Top-Rated Generator install pros in Round Rock - Updated Nov 2026

Avatar for Hector
Hector
5.0(
2
)
Portable Generator - InstallPortable Generator - Repair

Serving Round Rock, TX and surrounding areas

Approved

My name is Hector and im a locally owned and operated contractor dedicated to delivering top-quality electrical solutions for both residential and commercial clients. As a journeyman with over 5 years of experience, I specialize in everything from custom lighting and smart home automation to routine repairs and EV charger installation.\nYour safety is my tip priority; I strictly adhere to all NEC guidelines and maintain a commitment to clean, efficient work that is done right the first time.

Avatar for SRM Electric Co. LLC
SRM Electric Co. LLC
5.0(
2
)
Fixed Generator - Install

Serving Round Rock, TX and surrounding areas

Approved

Free estimates

Offers commercial services

"I recently had electrical work completed as part of a remodel, and overall I was pleased with the experience. The electrician was professional, knowledgeable, and took the time to explain the work being done. The quality of the installation was solid, and everything was completed safely and up to code. As with any remodel, there were a few minor delays and adjustments along the way, but they communicated well and made sure any concerns were addressed. I appreciate the attention to detail and the pride they took in their work. I would recommend them to anyone looking for reliable electrical work on a remodel and would consider hiring them again for future projects."
Kitchen remodel
Kitchen remodel
Welding/Garage shop
Welding/Garage shop
Welding/Garage shop

+2

1 neighbors recently requested a quote
Avatar for Storm Guardian Generators
Storm Guardian Generators
New to Angi
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Round Rock, TX and surrounding areas

Approved (Corporate)

In business since 2006

Free estimates

Emergency services offered

Founded in 2006 Storm Guardian Generators is a Power Pro Elite sales, service and installation dealership for GENERAC Power Systems. Storm Guardian Generators is family owned and operated. We are detail oriented, from job permitting to the turnkey installation and long term preventive maintenance, we make the process as smooth as possible. We carry the complete line of portable and fully automatic generators and transfer switches for residential, commercial and industrial applications. Give us a call lets talk. 281-648-2177

Response time1 day
Response rate100%
22 neighbors recently requested a quote
Avatar for Fox Service Company
Fox Service Company
3.5(
26
)
Fixed Generator - InstallFixed Generator - Repair

Serving Round Rock, TX and surrounding areas

Approved (Corporate)

In business since 1972

Emergency services offered

Warranties offered

"From the saleman, Brandon, who first reached out to us and worked with us on the equipment and the quote to the team that came out to do the installation of 2 AC units, everyone was professional polite, worked within our budget and explained our options clearly! Highly recommend Fox!"
Rooftop Package Unit Installation
Ductless Heat Pump Installation
Ductless Air Handler Installation
Ductless Air Handler Installation
Condenser Replacement

+2

Response time1 day
Response rate90%
4 neighbors recently requested a quote
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Generator Install FAQs, answered by experts

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

If your home already has a grinder pump and you’re still noticing issues (like frequently clogged toilets and sinks), it could be time to upgrade your grinder pump. Start by checking your existing horsepower. If there are four or fewer people living in your home, using a 1/2-horsepower grinder pump should be sufficient. Larger households should consider investing in a 1-horsepower grinder pump to maximize wastewater removal efforts.

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.

The Round Rock, TX homeowners’ guide to generator installs

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