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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

"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."
Demar Install
McDermott
Demar Install
Cornell
30 kW

+18

Response time10 hrs
29 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

"They installed the spray fiberglass and radiant barrier quickly and with little to no mess they took care of before leaving. Very good response when contacting them and would highly recommend."
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%
35 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!

16 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
19 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

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

DIY is possible for basic setups. Professional installation ensures safe and proper electrical connections.

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

If you’re wondering if you can use your electric vehicle as a backup battery, it depends on whether your EV is compatible with bidirectional charging. This technology allows energy to flow both ways, enabling vehicle-to-home (V2H) backup power, vehicle-to-load (V2L) for appliances and camping, and vehicle-to-grid (V2G) to support the power grid. Compatible EVs convert stored DC energy into usable AC power, helping reduce energy costs and enhance grid stability while providing emergency backup power.

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.