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Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
4.4(
5
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Henderson, TX and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Emergency services offered

We are the experts in the field of Whole Home Generator Sales and Installation, with over 20 years of experience in the game. We provide turn-key installation by licensed professionals - 24 hour emergency service - Remote Monitoring - Long term maintenance and service by factory trained technicians.

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+2

116 neighbors recently requested a quote
Avatar for Fenix Electric
Fenix Electric
5.0(
10
)
Fixed Generator - InstallPortable Generator - InstallGenerator - Install+2 more

Serving Henderson, TX and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Fenix Electric went beyond expectations to hang a flood light camera, replace an outdoor ceiling fan, clear an issue with a gfci circuit, and install automatic light switches for three outdoor lights. His crew was courteous and professional. The work was done expeditiously. His pricing was very reasonable. I recommend Fenix Electric highly!"
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+8

Response time1 day
Response rate100%
6 neighbors recently requested a quote
Avatar for ETX CC ELECTRICAL & CONSTRUCTION LLC
ETX CC ELECTRICAL & CONSTRUCTION LLC
5.0(
9
)
Fixed Generator - InstallPortable Generator - Install

Serving Henderson, TX and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"We had a tree fall and knock down our power coming into the house. I contacted Clay Cooper and he was out the next day. He ended up running it underground and installed a new 200 amp service. Excellent work and would highly recommend!"
Response time2 days
Recommended by100%of homeowners
Waggener Electric
5.0(
8
)
Fixed Generator - Install

Serving Henderson, TX and surrounding areas

In business since 2007

Free estimates

"Call very fast and was out here in 30 minutes. He quoted us a price, had the installer do it and where totally completed in less than 2 hours. I have never had such efficient service. They were very friendly and did a good job. Kenneth even called back to check on the installation and to tell us where to find engery saving light bulbs that would fit our new ceiling fan. Great Job!"
Recommended by100%of homeowners
Avatar for Premier Electric Solutions
Premier Electric Solutions
5.0(
3
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Henderson, TX and surrounding areas

In business since 2020

Free estimates

Warranties offered

"Jesus and his help were excellent- very efficient and professional. They were considerate and explained how and why of the job. After the work was completed they checked to make sure everything was working correctly. We would definitely hire Jesus for any future project."
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+11

Recommended by100%of homeowners
Showing 1-10 of 30
Generator Install questions, answered by experts

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

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. 

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

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 Henderson, TX homeowners’ guide to generator installs

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