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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon53
    Verified generator installs reviews

Find Generator install pros in Shenandoah

Avatar for Houston Home Generators
Houston Home Generators
5.0(
11
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Shenandoah, TX and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Houston Home Generators has installed dozens of Generac Generators for my business over the past year. The service is top notch and they go above and beyond to satisfy customers. I highly recommend them to anyone looking for a whole home generator."
Generac ATS install
Generator Project
Generac ATS install
Generator Project
Generac ATS install

+40

Response time12 hrs
Response rate100%
24 neighbors recently requested a quote
Avatar for Rodriguez Electric, LLC
Rodriguez Electric, LLC
5.0(
27
)
Portable Generator - Install

Serving Shenandoah, TX and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"We hired Reymundo to install a receiptical to hang a chandilier in our Dining Room. He also hung a new fixture in our breakfast area. Reymundo was on time and explained everything needed to complete job. His price was fair and his customer service was outstanding. We would definately recommend Reymundo for any electrical needs."
Response time1 day
Response rate90%
Recommended by100%of homeowners
Avatar for A1 Plus Electrical & Generators
A1 Plus Electrical & Generators
4.3(
1,360
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Shenandoah, TX and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"A1 Plus Electrical had the best price, and the electricians and plumber did excellent work! The only problem experienced was that it took 5 to 6 weeks for A1 Plus to get the permits approved after stating that they could get the permits approved and install the generator within 2 weeks. All other companies couldn't do the work for at least 2 months or longer! I had to contact A1 Plus general manager to get things moving after several permit submissions were rejected by the city. A1 Plus mitigated this time inconvenience by installing an electrical outlet in the garage at no cost, and once the permits were approved, everything was done within 7 days. Permits were approved on Friday, and installation started on the following Tuesday, and city permit inspections were done on the following Friday! All within one week! Would I hire A1 Plus to install my generator in the future? YES!"
Commercial Jobs
Commercial Jobs
Commercial Jobs
Commercial Jobs
Commercial Jobs

+48

Response time1 day
26 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Storm Guardian Generators
Storm Guardian Generators
4.0(
12
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Shenandoah, TX and surrounding areas

Approved (Corporate)

In business since 2006

Free estimates

Emergency services offered

"Storm Guardian is a small family owned company. Of the three companies from which we obtained estimates I was most impressed with this company. The initial brochure with which I was presented when I  received the estimate was the most complete and informative about the company and the product.
Everyone was helpful. Myra and Cindy in the office were always very cordial and helpful in scheduling and giving me information. Example:Theywere very helpful in getting through the complexities of arranging meter pulls with the electric companies.The men that came for the installation were always on time and easy to work with (we had "mixed up" wiring in an old house). I was very satisfied with the whole process. It was a job well done.
"
Additional Photos
Response time1 day
Response rate100%
44 neighbors recently requested a quote
Avatar for E. A. Solar & Home Services, LLC
E. A. Solar & Home Services, LLC
5.0(
18
)
Fixed Generator - Install

Serving Shenandoah, TX and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

We are a dedicated team of individuals committed to bringing the best possible customer service and quality of work. We specialize in residential and commercial electrical. We strive to stand out from the competition by providing the best customer experience. Give us a try, you won't be disappointed you called!

Solar system
Solar system
Solar system
Solar system
Solar system

+5

7 neighbors recently requested a quote
Recommended by61%of homeowners
Avatar for Helium Electric LLC
Helium Electric LLC
5.0(
9
)
Portable Generator - Install

Serving Shenandoah, TX and surrounding areas

Approved

Free estimates

Small jobs welcome

Offers commercial services

"I recently had a subpanel and generator interlock kit installed at my home, and I couldn’t be happier with the experience. From start to finish, they were professional in every way. The quote was accurate and fair with no surprises, and they got me on the schedule much quicker than I expected. They arrived promptly, communicated clearly throughout the process, and completed the work efficiently in a short amount of time. The installation looks great and everything works exactly as it should. I would absolutely recommend them to anyone needing electrical work done."
Main panel installation
Main Panel Instalation
Main Panel Instalation
Main Panel Instalation
Main Panel Instalation

+11

3 neighbors recently requested a quote
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Showing 1-10 of 250
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.

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

The average cost to install a home generator is $5,200, but total costs can range from $500 to $18,000 or more. The final price depends on several factors, including the generator's size, type, brand, fuel source, and the cost of labor and assembly. The generator's size is the most significant cost factor, as units that can power larger homes with higher energy demands cost more.

Cost breakdowns by generator type are typically as follows:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500–$2,000

  • Partial-Home Generators (9kW–20kW): $2,000–$6,500

  • Whole-House Generators (22kW–48kW): $5,000–$18,000

To ensure you get the right size unit for your needs without overpaying, consider hiring an electrician to calculate the electrical load of your essential appliances. It is also recommended to get at least three quotes from qualified installers to find the best fit for your budget.

The Shenandoah, TX homeowners’ guide to generator installs

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