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Top-Rated Generator install pros in Wimberley - Updated Nov 2026

Avatar for GoGEN
GoGEN
4.8(
48
)
Fixed Generator - InstallPortable Generator - InstallFixed Generator - Repair+4 more

Serving Wimberley, TX and surrounding areas

Approved

Super Service Award Winner

In business since 1994

Free estimates

Warranties offered

"They installed a whole house Generac generator in less than 4 hours.. very satisfied with their service. Excellent work ethic, answered all my questions, install has a very clean appearance, they were in and out as they said they would be. Did not leave a mess behind. I strongly recommend using GoGen for electrical and Generator service and install needs."
57 neighbors recently requested a quote
Recommended by45%of homeowners
Avatar for MSH POWER
MSH POWER
5.0(
3
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Wimberley, TX and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"MSH power went above and beyond.by providing the knowledge, expertise and gave us a timely rebate from the manufacturer . He rated the various equipment as far as his experience too . This is tge company you should go with if you want a standby generator ."
We keep inventory
Country
Mobilization
Safety First
Ranch

+11

Response time20 mins
Response rate100%
Avatar for Storm Guardian Generators
Storm Guardian Generators
New to Angi
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Wimberley, 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 Wimberley, 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

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.

Yes. You can connect your home back-up battery to a generator with its designated charger. Be sure that the output of the generator matches the input requirements for the battery for best results.

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.

It is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer’s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you’re away from the house. Overworked generators can pose a fire hazard and if your generator is not in a well-ventilated area, running it continuously could lead to carbon monoxide poisoning.

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. 

The Wimberley, TX homeowners’ guide to generator installs

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