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

Serving Mansfield, 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 Mansfield, TX and surrounding areas

Approved

In business since 1961

Emergency services offered

Warranties offered

"I engaged McBride to install two ceiling fans at my house. The installer, Justin, did an excellent job on both and I'm very pleased with Justin and the work he did for me. For my next electrical project I will be calling McBride."
Response time11 hrs
Response rate90%
11 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 Mansfield, 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 Wilder Electric, LLC
Wilder Electric, LLC
4.7(
78
)
Portable Generator - Install

Serving Mansfield, TX and surrounding areas

Approved

In business since 2018

Emergency services offered

Warranties offered

"The security lights were replaced and covers installed for the outside electrical outlets . Also a pull chain light was replaced with a motion detected LED light in a closet. Garage lights were replaced with LED lights. Christopher and his associate have spent a lot of time coming back to adjust an outside security light. They are such professional electricians and will stand behind their work. . I recommend their services."
Soda Shop
patio plug
She plug
The Brian house
Front

+34

Response time6 hrs
1 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Mister Sparky of Mansfield
Mister Sparky of Mansfield
5.0(
9
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Mansfield, TX and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Welcome to Mister Sparky of Mansfield! Family-owned and operated, we take pride in the quality of our work and the customer satisfaction we provide to each and every customer.\n\nWe are committed to delivering reliable, professional electrical services with exceptional attention to detail and dependable customer care throughout Mansfield, Midlothian, Cedar Hill, and surrounding communities.\n\nCall us today to learn more about how we can help you!

Mister Sparky Fleet/Team
Mister Sparky Fleet/Team
Mister Sparky Fleet/Team
Mister Sparky Fleet/Team
Mister Sparky Fleet/Team

+22

46 neighbors recently requested a quote
Avatar for Cool Hand Electric LLC
Cool Hand Electric LLC
5.0(
2
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Mansfield, TX and surrounding areas

Approved

In business since 2015

Emergency services offered

Warranties offered

"I needed an additional lighting fixture wired in and mounted above our pantry as well as an outdoor outlet in our patio ceiling, Cool Hand crushed it! They were extremely respectful of our home and wore disposable booties over their shoes every time they had to come inside from the attic or backyard. The install was extremely clean & professional, and of course worked flawlessly. Luke was very kind to our curious daughter who didnâ t make his job any easier! We wouldnâ t hesitate to hire them for the next project, they are 1st class."
Breaker Box Breaker Panel
Training Room
Open Splices
Broken Splice
Response time7 hrs
2 neighbors recently requested a quote
Recommended by100%of homeowners
...
Showing 1-10 of 182
Generator Install questions, answered by experts

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 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.

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.

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.

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.

The Mansfield, TX homeowners’ guide to generator installs

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