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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon35
    Verified generator installs reviews

Find Generator install pros in Rosharon

Avatar for A & A GenPro Electrical
A & A GenPro Electrical
4.3(
67
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Rosharon, 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

+3

Response time10 hrs
Recommended by92%of homeowners
Avatar for 3 Guys Electric & Insulation
3 Guys Electric & Insulation
4.6(
158
)
Portable Generator - InstallFixed Generator - InstallGenerator - Install - For Business

Serving Rosharon, TX and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"Installers were very professional on time as planned, did an excellent job and clean up. Could have done a better job keeping me informed of the schedule. Would highly recommend them."
Water Heater Wrap
Radiant barrier
Attic stair cover
Radiant Barrier/ blown in insulation
Reseal A/C duct

+44

Response time2 days
18 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Storm Guardian Generators
Storm Guardian Generators
4.0(
12
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Rosharon, 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 rate99%
47 neighbors recently requested a quote
Avatar for Strategic Electrical Solutions, LLC
Strategic Electrical Solutions, LLC
5.0(
24
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Rosharon, TX and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"Fantastic experience. I called at 11:00a for a generator start up and they were there by 2p and finished in less than an hour. Professional, experienced, and friendly team. Will use them for all of my electrical needs moving forward. A+"
20 kw Cummins
Tesla Chargers in Apartment Parking Garage
Tesla Chargers in Apartment Parking Garage
20 KW Cummins
24 KW Generac

+7

Response time12 hrs
Response rate95%
8 neighbors recently requested a quote
Avatar for E. A. Solar & Home Services, LLC
E. A. Solar & Home Services, LLC
5.0(
18
)
Fixed Generator - Install

Serving Rosharon, TX and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

We are a dedicated team of individuals committed to bringing the best possible customer service and quality of work. We specialize in residential and commercial electrical. We strive to stand out from the competition by providing the best customer experience. Give us a try, you won't be disappointed you called!

Solar system
Solar system
Solar system
Solar system
Solar system

+3

3 neighbors recently requested a quote
Recommended by61%of homeowners
Avatar for GRIDLY ELECTRIC
GRIDLY ELECTRIC
5.0(
2
)
Fixed Generator - InstallPortable Generator - Install

Serving Rosharon, TX and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

At GRIDLY ELECTRIC, we don’t cut corners, we cut your odds of calling someone twice. Texas-licensed (TDLR #41508), family-run residential electricians serving Katy and the greater Houston area. Safe, reliable, code-compliant work with honest pricing. All backed by a 5 year workmanship warranty

LOGO
Smart Panel
200A Meter Main
New 200A Panel
Transfer Switch

+8

Avatar for Otovo
Otovo
3.5(
8
)
Fixed Generator - Repair

Serving Rosharon, TX and surrounding areas

Approved

In business since 2012

Emergency services offered

Small jobs welcome

Otovo US is a home-energy partner helping homeowners monitor, maintain, and optimize solar and battery systems. Our platform provides 24/7 monitoring, fast repairs for solar, batteries, and generators, and simple subscription plans starting at $9/month. Customers can also lower electricity costs by up to 50% through solar buyback bill credits.

13 neighbors recently requested a quote
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Generator Install questions, answered by experts

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.

Costs depend on generator type, labor, and additional wiring or transfer switch requirements.

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

In many cases, yes. There are models called dual-fuel generators and fuel switches, but only between certain types of fuel. For example, with the right setup you can convert a generator from natural gas to propane. Some allow switching between diesel and gasoline. There are even tri-fuel generators available in some cases, which adds a large layer of security if you are worried about fuel availability in times of crisis. Always check your generator capabilities and manual instructions before trying to switch fuels. Some generators can use another fuel but may need a fuel conversion kit to prep them first.

The Rosharon, TX homeowners’ guide to generator installs

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