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Avatar for Gonelectrical L.L.C
Gonelectrical L.L.C
5.0(
31
)
Fixed Generator - InstallPortable Generator - Install

Serving Richardson, TX and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"When I made the request on Angi's List, Gonelectrical called me within seconds. We talked about installing a whole-home surge protector. I traded some photos of my panels and received a quote over the phone. The job was scheduled for the next day. They showed up promptly and completed the work professionally. They explained what they did and showed me exactly what was done. I would recommend this company for similar work."
Modern Glow Makeover
Modern Glow Makeover
Modern Glow Makeover
kitchen remodel
Soffit lighting

+16

Response time4 hrs
Response rate96%
37 neighbors recently requested a quote
Avatar for Gravity Electric LLC
Gravity Electric LLC
5.0(
8
)
Portable Generator - Install

Serving Richardson, TX and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Josh and his team are THE BEST: professional, prompt, caring, thorough, kind, and really Christ-like in every way. They communicate better than any other business I've encountered. I strongly recommend them . I had been told that it would take six months to get a generator. Josh understood my need and got to work on it, immediately. They installed a generator within three weeks. I'm so grateful for them. N.C."
200 amp new panel
New construction
New LEW lighting
New LED strip lighting
New interior panels

+3

Response time12 hrs
Recommended by100%of homeowners
Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
5.0(
5
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Richardson, 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
112 neighbors recently requested a quote
Avatar for Electric Masters, LLC
Electric Masters, LLC
5.0(
17
)
Generator - Install - For Business

Serving Richardson, TX and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"I have zero complaints about this company. They came out very quickly to access my issue. It was urgent. From Oncor and this company, I clearly escaped what could have been a major fire. These guys were so professional and kept me in the loop of everything being done. I've saved their number for any future issues and I will definitely recommend them to anyone needing a skilled electrician. It was worth every penny to have it done professionally and safely. Thank you ALL."
Panel replacement
Panel replacement
Panel replacement
 surge protector
 surge protector

+41

Response time3 hrs
Response rate100%
48 neighbors recently requested a quote
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Generator Install questions, answered by experts

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

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.

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. 

Setting up utilities on a vacant property usually takes at least a few months, or between 6 weeks to 16 weeks. This process requires working with the local planning and zoning department, hiring a building contractor or engineer to design the utility layout, securing permits, laying the lines, and connecting the utilities.

These advanced generators use a key fob or a smartphone app to remotely start, which is ideal for getting power back on immediately without venturing outside. This feature is more common on whole home generators, but you may be able to find it on large portable generators, too.

The Richardson, TX homeowners’ guide to generator installs

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