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TRUSTED BY SAN LEON, TX HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon17
    Verified generator installs reviews

Top-Rated Generator install pros in San Leon - Updated Nov 2026

Avatar for A & A GenPro Electrical
A & A GenPro Electrical
4.3(
67
)
Fixed Generator - InstallPortable Generator - Install

Serving San Leon, TX and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"they have a great crew for installing Generator from electric and to putting in generator and start up. Pham Knows his stuff and the Electric Man was great did not remember his name . Flow up buy Andrew with Gen Pro to make sure everything was working and to break in time . Cummings Generators are the best on market , had Cummings engines in RVs to on ships and tugs thought my time in life THE BEST WAY TO GO , ALSO WITH GEN PRO."
Demar Install
McDermott
Demar Install
Cornell
30 kW

+18

Response time10 hrs
27 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for 3 Guys Electric & Insulation
3 Guys Electric & Insulation
4.6(
159
)
Fixed Generator - InstallPortable Generator - InstallGenerator - Install - For Business

Serving San Leon, 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"
Water Heater Wrap
Radiant barrier
Attic stair cover
Radiant Barrier/ blown in insulation
Reseal A/C duct

+44

Response time2 days
12 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Storm Guardian Generators
Storm Guardian Generators
4.0(
12
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving San Leon, TX and surrounding areas

Approved (Corporate)

In business since 2006

Free estimates

Emergency services offered

"Ronnie, Pam, Cindy and crew were wonderful to work with.  There are several steps to the process, given potential permits needed and coordination of service dates with Center Point Energy.  They kept me informed and walked me through the process at each step. 
I got bids from three companies.  Storm Guardian's bid was the lowest and included the most features.  It included Mobile Link, which the other two did not even mention.  Being able to remotely monitor the generator and receive alerts on my IPhone and on-line when the generator turns on/off is great.  Almost as important to me, they came through on their promise of near turn key.  The other bids had me doing a lot of the leg work with Center Point.  With Storm Guardian, I only had to make two phone calls and be home half a day to authorize Center Point's replacement of the gas meter. 
I am very pleased with Storm Guardian and can recommend them without reservation.  Great work, great people.
"
Additional Photos
Response time1 day
Response rate100%
32 neighbors recently requested a quote
Avatar for Precision Power Electrical Services LLC
Precision Power Electrical Services LLC
5.0(
13
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving San Leon, TX and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

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 always offer FREE ESTIMATES and we offer 0% FINANCING FOR 18 MONTHS ZERO DOWN! We look forward to earning your business! Book with us online or feel free to give us a call today!

15 neighbors recently requested a quote
Recommended by46%of homeowners
Avatar for Power Up Electrical Contractors
Power Up Electrical Contractors
3.9(
8
)
Fixed Generator - InstallGenerator - Install - For Business

Serving San Leon, TX and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"This is what I found while checking the oil. I contacted Chris at Power up to look at the issue. An appointment was set up in a timely manner and the tech that came out was excellent. He found the leak on one of the oil cooler hoses. He removed the factory clamp and replaced it with a new clamp. After several weeks there hasn't been any oil in the base of the generator. I have also had Power up tech come out and adjust the valves at the recommended interval. The generator sounded much better after the valves were adjusted."
Response time1 day
9 neighbors recently requested a quote
Recommended by37%of homeowners
Precision Services
5.0(
4
)
Generator - Install - For Business

Serving San Leon, TX and surrounding areas

Approved

In business since 2016

Free estimates

Customers say: Quick response

"Donnie was a pleasure to work with on the phone. After describing what was required to install a Ring Floodlight, Donnie was able to provide a quote and time limit to perform the installation including some custom wiring. Jeff did the installation in the time frame quoted and the price was more reasonable than all other quotes received. I highly recommend them!"
Response time2 days
21 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for ARS/ Rescue Rooter Houston South
ARS/ Rescue Rooter Houston South
4.1(
117
)
Fixed Generator - InstallFixed Generator - Repair

Serving San Leon, TX and surrounding areas

Approved (Corporate)

In business since 1991

Free estimates

Emergency services offered

ARS/Rescue Rooter is known for our focus on reliable service, skilled professionals, and consistent standards. Technicians and comfort advisors receive ongoing training and background screening, and all work is supported by our Exceptional Service Guarantee, which reflects a commitment to addressing customer concerns and maintaining high service standards. If customers are dissatisfied, we work to resolve issues and make things right.

Generator Installation
Recommended by85%of homeowners
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Generator Install FAQs, answered by experts

Yes, natural gas generators can work without electricity. Natural gas generators are a common type of backup or whole-house generator that operates when the electrical grid isn’t working. The trick is using a transfer switch (which usually needs to be installed with the generator) that safely switches the home electrical system from the power grid to generator power when needed.

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

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

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.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

The San Leon, TX homeowners’ guide to generator installs

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