Get matched with top generator installers in Castle Hills, TX
There are 4 highly-rated local generator installers.
Generator installers in Castle Hills
We are GoGEN a fully stocked & full-service electrical contractor with a focus at home standby generators. GoGEN has been in business for over 30 years, and in the San Antonio area for over 20 years. We have several locations in Texas and Louisiana to better serve our customers. Offering the very best customer service and pricing. Gogen will do whatever it takes to earn and keep your business for years to come. Our prompt, professional, licensed technicians are exactly what your business/residence deserves. We appreciate your time and look forward to helping you with all your electrical needs.
"David was amazing and did high quality work. From start to finish, it was only a few hours."
Crystal K on March 2025
We are GoGEN a fully stocked & full-service electrical contractor with a focus at home standby generators. GoGEN has been in business for over 30 years, and in the San Antonio area for over 20 years. We have several locations in Texas and Louisiana to better serve our customers. Offering the very best customer service and pricing. Gogen will do whatever it takes to earn and keep your business for years to come. Our prompt, professional, licensed technicians are exactly what your business/residence deserves. We appreciate your time and look forward to helping you with all your electrical needs.
"David was amazing and did high quality work. From start to finish, it was only a few hours."
Crystal K on March 2025
We are proud to be San Antonio's largest residential heating and air conditioning contractor. From the moment you call until the job is done, our goal is your 100% satisfaction. If the job is not done right, we will make it right.
"Very prompt and professional. Project was completed quickly; everything was left, clean and functional."
Dallas H on April 2025
We are proud to be San Antonio's largest residential heating and air conditioning contractor. From the moment you call until the job is done, our goal is your 100% satisfaction. If the job is not done right, we will make it right.
"Very prompt and professional. Project was completed quickly; everything was left, clean and functional."
Dallas H on April 2025
⚡ Mr. G Electric ⚡ With 29 years of seasoned expertise, Mr. G Electric is your trusted choice for residential and commercial electrical work in San Antonio, TX. Our master-licensed team specializes in: Panel upgrades Remodeling Lighting solutions Generators, troubleshooting, with Breakers, Outlets, lighting, switches and more! We proudly serve in both English and Spanish, offering discounts to seniors, teachers, and military personnel. Energize your space today! Call (210) 573-0661 for a project quote. Let's light up your world!
"We accepted his estimate and scheduled for service. He didn't call (said he did) the day of service. I called him and asked him if he was still showing up, he said yes. He never showed up and he never called or communicated. I wouldn't recommend."
J p on May 2025
⚡ Mr. G Electric ⚡ With 29 years of seasoned expertise, Mr. G Electric is your trusted choice for residential and commercial electrical work in San Antonio, TX. Our master-licensed team specializes in: Panel upgrades Remodeling Lighting solutions Generators, troubleshooting, with Breakers, Outlets, lighting, switches and more! We proudly serve in both English and Spanish, offering discounts to seniors, teachers, and military personnel. Energize your space today! Call (210) 573-0661 for a project quote. Let's light up your world!
"We accepted his estimate and scheduled for service. He didn't call (said he did) the day of service. I called him and asked him if he was still showing up, he said yes. He never showed up and he never called or communicated. I wouldn't recommend."
J p on May 2025
Alamo Lighting & Electrical, Inc., should be your 1st choice for all of your commercial, residential lighting and electrical needs. We are hands on qualified neighborhood contractor. Honesty, reliability, excellence is what we do.
"Prompt, friendly, professional and courteous! Hung ceiling fans, bathroom exhaust fan, installed electrical outlets & plugs, replaced ballast in garage light, and replaced doorbell. They came out the same day I called."
Dianne H on April 2012
Alamo Lighting & Electrical, Inc., should be your 1st choice for all of your commercial, residential lighting and electrical needs. We are hands on qualified neighborhood contractor. Honesty, reliability, excellence is what we do.
"Prompt, friendly, professional and courteous! Hung ceiling fans, bathroom exhaust fan, installed electrical outlets & plugs, replaced ballast in garage light, and replaced doorbell. They came out the same day I called."
Dianne H on April 2012
Cross-Wired Computers is the new name in the New Braunfels area for professional commercial I.T. services. We provide a full compliment of traditional I.T. services but also provide strategic planning & consultation services to really partner with you in the success of your business by taking the stresses of your technological needs off of your shoulders. Our services are specifically designed to give local small & medium size businesses the same benefits larger businesses get from having their own I.T. department, as if we were just right down the hall. By not outsourcing cable & wire installations, we're also able to work on a host of ancillary systems such as audio/video, in-ceiling audio/music, surveillance cameras, physical access systems (like key cards), phones (VoIP or traditional), etc. Catering to the needs of churches and other live music venues, we also provide support for PA & stage lighting systems. Please see our website at cross-wiredcomputers.com for more details.
Cross-Wired Computers is the new name in the New Braunfels area for professional commercial I.T. services. We provide a full compliment of traditional I.T. services but also provide strategic planning & consultation services to really partner with you in the success of your business by taking the stresses of your technological needs off of your shoulders. Our services are specifically designed to give local small & medium size businesses the same benefits larger businesses get from having their own I.T. department, as if we were just right down the hall. By not outsourcing cable & wire installations, we're also able to work on a host of ancillary systems such as audio/video, in-ceiling audio/music, surveillance cameras, physical access systems (like key cards), phones (VoIP or traditional), etc. Catering to the needs of churches and other live music venues, we also provide support for PA & stage lighting systems. Please see our website at cross-wiredcomputers.com for more details.
We are a locally owned and operated company with over 15 years of industry experience. We value honesty and integrity in all aspects of our business. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!
"Nick was very professional and efficient! I thought his prices were good as well."
Hilaria D on August 2019
We are a locally owned and operated company with over 15 years of industry experience. We value honesty and integrity in all aspects of our business. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!
"Nick was very professional and efficient! I thought his prices were good as well."
Hilaria D on August 2019
Brite Electric 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
"On time"
Stephen B on November 2024
Brite Electric 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
"On time"
Stephen B on November 2024
At Velocity Communications, we specialize in voice and telephone systems. We also do low voltage home services, including home theater and audio video projects, TV and speaker installations, concealing wiring, and antenna installations. Velocity Communications takes pride in our work, and customer satisfaction is a top priority. Give us a call regarding your project today!
"This company was amazing! Fast! And juss are t all around wonderful!"
Angelic S on February 2022
At Velocity Communications, we specialize in voice and telephone systems. We also do low voltage home services, including home theater and audio video projects, TV and speaker installations, concealing wiring, and antenna installations. Velocity Communications takes pride in our work, and customer satisfaction is a top priority. Give us a call regarding your project today!
"This company was amazing! Fast! And juss are t all around wonderful!"
Angelic S on February 2022
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!
"Juan and his team did some wiring and fan installs for a new home. They did fantastic work at a fair price. They were communicative and easy to get along with. Juan even followed up to ensure everything was working properly. Highly recommend!"
Bryant R on August 2024
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!
"Juan and his team did some wiring and fan installs for a new home. They did fantastic work at a fair price. They were communicative and easy to get along with. Juan even followed up to ensure everything was working properly. Highly recommend!"
Bryant R on August 2024
4th. Generation in the Lightning Protection industry, Still Owned And Operated By The Hamilton Family. We use all American made parts that are U.L Listed materials. We Install lightning protection systems on homes - commercial buildings - oil field services - Industrial- ranches - farms -Golf Courses and trees. We Are A Proud Member Of U.L. (Underwriters Laboratories) And We Offer 96A Master Label Systems. Call for a free estimate.
"I have to preface this entry with the fact that I NEVER write reviews, so the fact I m actually taking the time to do this should tell you all you need to know. If you want details, please proceed... Marty was incredibly helpful throughout the process. He came by between other jobs the day before the install to talk through the process and answer all of our questions. He was candid, clear, and very professional. Marty and his team showed up on time and after a brief review of the process, jumped right into the job at-hand. Marty s team included his son and three other young men. They were all polite, friendly, and professional as well. They completed the install in under 4 hours. We had some other work being done on the roof and he coordinated with us to make sure all of fit together perfectly. I highly recommend Marty and his team! Additionally, Marty has installed lightning rods in many homes within my community and everyone that I ve talked to has echoed my thoughts. Thank you Marty + Team"
Shawn L on May 2020
4th. Generation in the Lightning Protection industry, Still Owned And Operated By The Hamilton Family. We use all American made parts that are U.L Listed materials. We Install lightning protection systems on homes - commercial buildings - oil field services - Industrial- ranches - farms -Golf Courses and trees. We Are A Proud Member Of U.L. (Underwriters Laboratories) And We Offer 96A Master Label Systems. Call for a free estimate.
"I have to preface this entry with the fact that I NEVER write reviews, so the fact I m actually taking the time to do this should tell you all you need to know. If you want details, please proceed... Marty was incredibly helpful throughout the process. He came by between other jobs the day before the install to talk through the process and answer all of our questions. He was candid, clear, and very professional. Marty and his team showed up on time and after a brief review of the process, jumped right into the job at-hand. Marty s team included his son and three other young men. They were all polite, friendly, and professional as well. They completed the install in under 4 hours. We had some other work being done on the roof and he coordinated with us to make sure all of fit together perfectly. I highly recommend Marty and his team! Additionally, Marty has installed lightning rods in many homes within my community and everyone that I ve talked to has echoed my thoughts. Thank you Marty + Team"
Shawn L on May 2020
Generator installations FAQs
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 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.
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
Get our Angi-powered app
