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Top-Rated Generator install pros in Dallas - Updated Nov 2026

Avatar for Aquarius Home Services
Aquarius Home Services
4.6(
260
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Dallas, WI and surrounding areas

Approved

Super Service Award Winner

In business since 1987

Free estimates

Emergency services offered

"We are very satisfied with the minisplit system installation. The equipment works great. The installation team did a fantastic job explaining what they were going to do, getting it done and cleaning up before they left."
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Response time12 hrs
Response rate100%
9 neighbors recently requested a quote
Avatar for Christopher Power Systems
Christopher Power Systems
5.0(
4
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Dallas, WI and surrounding areas

Approved

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is \nbased on service, safety, and quality, regardless of how large or small the job. \n \nFianacing Available

Generator install
15 neighbors recently requested a quote
Tek Electric
2.3(
3
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Dallas, WI and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"First, they were recommended to us for the whole house generator by home depot.  We were so happy with the generator that we had him do a bathroom fan at my house and a bathroom fan at my son's house.  I did some checking and that was a reasonable price.  With the work he did, it was more than reasonable.  The job was a little more involved than he thought it would be and he didn't have any problem with any of it.  Without anything to judge the pricing from, other than online and a couple of guys I had come over who weren't on the same page as me, I'd say excellent.  The quality was top of the line.  As soon as he got the generator, he got over here to put it in. As a matter of fact, I am thinking about calling him again for something."
Recommended by50%of homeowners
Chippewa Valley Electrical Contractors, Inc.
2.8(
2
)
Fixed Generator - InstallPortable Generator - Install

Serving Dallas, WI and surrounding areas

In business since 2019

Free estimates

Chippewa Valley Electrical Contractors Inc 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.

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

Costs range from $500 to $2,500, depending on generator type and installation complexity.

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. 

Many services include assembling the unit and securing it in the window. Confirm with your provider.

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

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.

The Dallas, WI homeowners’ guide to generator installs

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