*The Angi rating for Generator Install companies in Klein, 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 Klein, 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 March 04, 2026
Serving Klein, TX and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
"HHG was a pleasure to work with. They installed a Generac switch in my garage with a portable generator. Chris was very easy to coordinate with and they had the job done in 1 day."
+40
Serving Klein, TX and surrounding areas
Approved
Super Service Award Winner
In business since 2010
Free estimates
Emergency services offered
"Technician was informative and thorough. He installed the extra panel and breaker for my whole house generator. Showed me how to use it and insured everything worked before he left. I will definitely hire him again for any future work."
Serving Klein, TX and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Offers commercial services
"He was able to install sky lights through the house successfully. Also, switched out breakers out in the panel and fixed another from tripping."
+36
Serving Klein, TX and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"I had a nema outlet installed in my garage. They were on time, provide good explanation, and worked cleanly. I do not frequently use the service of an electrician, but the price seems fair to me. Overall very happy."
Serving Klein, TX and surrounding areas
Approved
In business since 2002
Free estimates
Emergency services offered
"GenPro installed a Home Generator for us. Andrew Spitzmueller and his team were dependable and reliable. Did what they said they would do. When they encountered roadblocks with sub-contractors and permit inspectors, they worked diligently to resolve the situation. They are honest and trustworthy people. Highly recommend them."
+3
Serving Klein, TX and surrounding areas
Approved
In business since 2015
Free estimates
Warranties offered
"Outstanding service and top notch expertise. Install everything to code and corrected everything from the previous contractors. Did exactly what they quoted and installed everything with a clean and professional look Definitely recommend to anyone who needs electrical work"
+44
Serving Klein, TX and surrounding areas
Approved
In business since 2016
Free estimates
Credit card accepted
"Excellent communication and professional installation."
Serving Klein, TX and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Rolando Gonzalez, Next Level Electrical Solutions re-installed our landscape lights with stakes and the correct electrical wiring as the previous person used green CHRISTMAS LIGHT wire! Rolando is very professional kind honest and fair providing service with a smile. He really does respectfully come up with the best solutions. During his assessment of what was needed to correct the lights Rolando sent links to materials needed. He showed up on time, corrected and re-installed the lights and actually finished earlier than anticipated. Now my landscaping lights looks professionally installed. Needless to say I highly recommend Rolando and look forward to my next electrical project with him."
+56
Serving Klein, TX and surrounding areas
Approved
In business since 1999
Free estimates
Customers say: Quick response
"We highly recommend Adam s for all your electrical needs. The technicians were very efficient and friendly. We will use them again in the future."
Serving Klein, TX and surrounding areas
Approved
In business since 1956
Free estimates
Warranties offered
"Jimmy was able to schedule me the same day and came in less than 2 hours. Once arrived, he checked and identified the issues and got it fixed. In addition, he installed a new outlet as well as disconnected a device per my request. Everything was done is a very professional manner. Will hire B & H Electric again."
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 Houston, 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.
Wondering who to hire to install a generator? Consult this guide to learn who to hire to install a generator or a transfer switch.
Whole home generator installations require a professional hand. Read this guide to help you decide which generator is best for your home.
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.
