Top-rated generator install pros.

Get matched with top generator install pros in Rockwall, TX

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Rockwall, TX?

Select your specific project to find the pro for you.

Verified Reviews for Generator Install pros in Rockwall, TX

*The Angi rating for Generator Install companies in Rockwall, TX is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Rockwall, TX is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on July 08, 2025

Find Generator install pros in Rockwall

Avatar for Gonelectrical L.L.C
Gonelectrical L.L.C
5.0(
31
)

Serving Rockwall, TX and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Fabian did an excellent job for us. He was very professional and handled the work on time and well. I would call him for any electrical job we need and would recommend him to anyone needing electrical work."
Modern Glow Makeover
Modern Glow Makeover
Modern Glow Makeover
kitchen remodel
Soffit lighting

+16

Response time4 hrs
Response rate96%
40 neighbors recently requested a quote
Request Quote
Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
5.0(
5
)

Serving Rockwall, 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
104 neighbors recently requested a quote
Request Quote
Avatar for Electric Masters, LLC
Electric Masters, LLC
5.0(
17
)

Serving Rockwall, 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%
60 neighbors recently requested a quote
Request Quote
Avatar for LuminX Electrical Contractors
LuminX Electrical Contractors
4.9(
14
)

Serving Rockwall, TX and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"LuminX is a company I would recommend, they were extremely professional and courteous. I was informed when they were on their way and they did the job quickly and the new outlet was installed right where we needed it. I will definitely be calling them for future jobs and recommend to anyone needing electrical work."
Exterior Lighting
Exterior lighting
Before
Before
Interior

+10

Response time2 hrs
Response rate89%
1 neighbors recently requested a quote
Request Quote
Avatar for HERNANDEZ CLEANING & RESTORATION, LLC
HERNANDEZ CLEANING & RESTORATION, LLC
4.8(
36
)

Serving Rockwall, TX and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"Jay's crew was very helpful, and Jay was good with keeping us up to date with project progress and any updates on schedule slipping. Work quality was good too!"
Fire Restoration
Fire Restoration
Fire Restoration
Fire Restoration
Fire Restoration

+95

Response time1 day
Response rate94%
65 neighbors recently requested a quote
Request Quote
...
Showing 1-10 of 168
Generator Install questions, answered by experts

In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.

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.

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.

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

The Rockwall, TX homeowners’ guide to generator installs

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

See all articles