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Avatar for Powertex Electric
Powertex Electric
5.0(
10
)
Fixed Generator - InstallPortable Generator - Install

Serving Justin, TX and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Casey from Powertex did a great job. He installed recess lighting, a ceiling fan and dimmers. He also fixed a electrical switch. He took great care to protect my space while he worked. I will use Powertex for all my electrical needs."
Panel Before
Panel During Re-wire
Panel Rewire & Cleanup
Tesla Wall Charger
Free Estimates

+8

5 neighbors recently requested a quote
Avatar for McBride Electric
McBride Electric
5.0(
18
)
Fixed Generator - InstallPortable Generator - Install

Serving Justin, TX and surrounding areas

Approved

In business since 1961

Emergency services offered

Warranties offered

"Chris was a great service man. After a thorough inspection of my power panel, Chris found the problem of power surges and recommended I call ONCOR to fix the service to the house. One phase had burned through the rubber boot. ONCOR promptly came and reconnected the power properly."
Response time11 hrs
Response rate90%
13 neighbors recently requested a quote
Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
5.0(
5
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Justin, TX and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Emergency services offered

Tri-State Water, Power & Air has been provided products designed to improve the comfort and quality of life of our customers since 1992. Our specialty is Automatic Home Standby Generators. \nWe expect customer service excellence and aim to go above and beyond on every call. With 10 locations across 8 states, Tri-State is always ready to serve you.

Additional Photos
109 neighbors recently requested a quote
Avatar for S & G Electrical Services
S & G Electrical Services
5.0(
14
)
Portable Generator - Install

Serving Justin, TX and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Emergency services offered

Warranties offered

"Casey & Allen are hands-down the BEST electricians I’ve ever worked with. They came to fix my doorbell transformer, realized it was simple fix, and since they don’t charge hourly, instead they charge by Task Price, I paid almost half of what other companies had quoted. Who does that anymore?! And here’s the most impressive part. My simple fix ended up being a bit of work… The new transformer that I bought off of Amazon turned out to be broken so they waited while I ran to Home Depot to grab another one—no pressure to buy theirs. They double-checked the voltage to protect my ADT camera (apparently people fry these all the time!) and made sure everything was perfect before leaving. And charged the original agreement. $69. Professional. Honest. Kind. Fast. Affordable. I chose them because of their reviews—now I’m leaving one because they earned it. If you need any electrical work done, don’t think twice—go with S&G Electrical."
Completed Jobs
Completed Jobs
Completed Jobs
Completed Jobs
Completed Jobs

+2

Response time3 hrs
Response rate98%
5 neighbors recently requested a quote
Avatar for Cooper Electrical Contractors, LLC
Cooper Electrical Contractors, LLC
5.0(
2
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Justin, TX and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

COOPER ELECTRICAL CONTRACTORS LLC is the leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!\n

Response time7 hrs
Response rate97%
2 neighbors recently requested a quote
Avatar for R&D Electrical, LLC
R&D Electrical, LLC
4.5(
2
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Justin, TX and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

Ramiro Delacruz Jr is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Base of the tower
Service with Generator
Lighting for water fountain
Pendant lighting
Walkway lighting

+2

Response time1 day
Response rate96%
Recommended by100%of homeowners
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Generator Install questions, answered by experts

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 cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

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

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

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

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

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.

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

While natural gas generators are costly, they’re a great option for standby power due to the reliability of natural gas as a fuel source. Unlike other fuels, natural gas is delivered through underground pipes, making outages extremely rare and less likely to be affected by the elements. As long as the area isn’t prone to earthquakes, they offer an unlimited supply of natural gas that doesn’t degrade over time or require storage in tanks.

The Justin, TX homeowners’ guide to generator installs

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