*The Angi rating for Generator Install companies in Keller, 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 Keller, 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 May 21, 2026
Serving Keller, TX and surrounding areas
Approved
Super Service Award Winner
In business since 2016
Warranties offered
Credit card accepted
"Within minutes got contacted from Paul and in less than four hours got vanity light installed! The technician Robert was great! Will definitely hire them for my next project!"
+47
Serving Keller, TX and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"Paul and his team came out to install a generator. Excellent response, service and practical, honest counsel. Phoenix Electrical is now my #1 go-to for electrical needs."
+14
Serving Keller, TX and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"I pay them for a yearly service. They understand how to work on generators, which is hard to find in the Dallas area."
+18
Serving Keller, TX and surrounding areas
Approved
In business since 2004
Emergency services offered
Credit card accepted
"Roger was awesome. He replaced my fan and installed my wall controller with no issues. Very friendly guy and my upstairs is now smarter and cooler with that fan up there!"
Serving Keller, TX and surrounding areas
Approved
In business since 2016
Warranties offered
Small jobs welcome
"My ceiling fans were late being delivered but Hop2it got some of the prep work done to install the new ceiling fan and installed a bathroom vent fan. Noah L. and the other technician (forgot his name!) did a great job installing the vent fan in a tight space."
+102
Serving Keller, 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."
Serving Keller, TX and surrounding areas
Approved
Super Service Award Winner
In business since 2016
Free estimates
Emergency services offered
"Great work and customer service. Matt did a professional and quick job installing my electric car charger. They also gave me an estimate over the phone, which was very useful."
Serving Keller, 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."
+8
Serving Keller, TX and surrounding areas
Approved
In business since 2024
Free estimates
Warranties offered
Petree Electrical Services LLC specializes in electrical panel upgrades and EV charger installations for homeowners in North Fort Worth, Keller, Southlake, Watauga, and North Richland Hills.\n\nIf you need a panel upgrade, breaker panel replacement, 200 amp service upgrade, or EV charging station installation, we provide straightforward pricing and professional installation.\n\nMany homes were not built to support EV charging, modern appliances, and higher electrical loads. We help homeowners upgrade their electrical panels so their homes are safe and EV ready.\n\nServices include:\n• Electrical panel upgrades (100–200 amp)\n• Breaker panel replacement\n• EV charger installation (Level 2 charging stations)\n• Dedicated circuits and surge protection\n\nPetree Electrical Services is owner-operated by licensed electrician James Petree (TECL #39513).\n\nCall or text 8174221134 today for a fast quote.
+15
Serving Keller, TX and surrounding areas
Approved
In business since 2025
Free estimates
Small jobs welcome
"Sam was very knowledgeable and did a great job. I would recommend Sam for any of your electrical needs."
+5
When maintained properly, a whole-house generator can last up to 20 years. Costs to maintain and repair generators vary by location and type of generator, but you can expect to pay about $150 to $300 per year for annual generator maintenance checks. An experienced generator service technician will inspect your generator’s engine filter, starting mechanism, fuel, lubrication, and coolant levels to keep your generator in good working condition for as long as possible.
Installing a whole-house generator costs about $5,000 on average. Prices range from $1,550 to $8,500, depending on size, brand, fuel type, and assembly. The size of your whole-house generator is the most significant cost factor, with large homes with high energy demands costing the most to power. Types of whole-home generators include:
Portable generators with 1kW–7.5kW capacity: $500–$2,000
Partial generators with 9kW–20kW capacity: $2,000–$6,300
Whole-house generators with 22kW–48kW: $5,000–$18,000
When choosing the right size generator for your needs, consider a few items to help calculate the wattage you’ll need. Start by determining which household items and appliances you want to power, and then add the wattages together. Check out the wattage of these essential appliances:
Refrigerator: 600 watts
Large dehumidifier: 700 watts
Large window air conditioner: 1,400 watts
Water heater: 3,000 watts
Running home appliances like these requires a partial or whole-house generator. A portable generator may be enough to power your home if you only plan to keep a refrigerator and freezer running.
Here’s what you can run with different wattages and types of generators:
Portable generator:
2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers.
4,000 watts will keep two large appliances operating and a few smaller devices.
8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.
Partial to whole-house generator:
20,000 watts and above will make it seem like your home’s power is still on.
The value of installing a whole-house generator is that your home has guaranteed power, even if the power grid in your area is down. Whether a whole-house generator is worth installing in your home depends on how often you use it, your home’s location, and your lifestyle. For example, installing a whole-house generator is likely worth it if you:
Experience frequent or prolonged power outages
Work from home
Store a lot of cold food
Have a sump pump
Have a pump for well water
Use electronic medical devices
Live in a climate requiring heating or cooling
From average costs to expert advice, get all the answers you need to get your job done.
The cost to install a whole-house generator in Dallas, TX varies based on factors like generator size, fuel type, and installation complexity. Learn the typical price range and what influences your total cost.
Natural gas generators are whole-home standby generators that are connected to your home’s natural gas line. The average cost for a natural gas generator is $12,000.
The cost to install a generator transfer switch depends on several factors. Our guide will help you understand all of the costs.
Before deciding between a gas generator and a natural gas generator, explore the differences. Compare gas vs. natural gas generator with our informative guide.
Depending on your needs, many types of generators can power your home, RV, or campsite. Check out our guide for the best types of generators.
Portable generators ensure your essential appliances and electronics stay powered during an outage. Learn how to hook up a generator to your house.
