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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

6 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
113 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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Showing 1-10 of 131
Generator Install questions, answered by experts

Natural gas and electricity rates vary significantly based on location, and pricing can change over time, too. It’s possible that in locations where natural gas is particularly inexpensive, it will cost less than grid-based electricity will. However, you should also factor in the generator’s initial costs and maintenance needs, as well as its noise level and if it can comfortably power all your home appliances.

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.

Most homeowners won't be able to claim a home generator as a tax write-off. However, a whole-house generator may be tax-deductible in certain situations depending on its purpose. For instance, if it's needed to power essential medical equipment, it may qualify as a medical expense deduction. Also, in some cases, businesses can deduct a generator as a business expense if it supports operations. Always consult a tax professional to determine eligibility based on your specific circumstances and the applicable IRS regulations.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

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.