Top-rated generator install pros.

Best generator install pros near Tomball, TX

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Tomball, TX?

Select your specific project to find the pro for you.

TRUSTED BY TOMBALL, TX HOMEOWNERS

  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon70
    Verified generator installs reviews

Top-Rated Generator install pros in Tomball - Updated Nov 2026

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

Serving Tomball, 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
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 Tomball, 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 West Houston Electric, Inc
West Houston Electric, Inc
4.9(
348
)
Portable Generator - Install

Serving Tomball, TX and surrounding areas

Approved

Super Service Award Winner

In business since 1980

Free estimates

Emergency services offered

"My technician Brian was fantastic! He was very knowledgeable and shared that knowledge in a very easy to understand manner. He offered me suggestions for my concerns without trying to offer me products or services that were not needed. We had them upgrade our electrical panel to allow our generator to power our home. Brian not only showed us the process, he helped me to put my generator together and get started. A true professional and we will be calling him back out to install our EV Charger when the time comes. Highly recommend!!"
Add Recessed Lighting
Recessed Lighting & Ceiling Fan Added
Automatic Standby Generator
Automatic Generator Transfer Switch
22 KW Generac Genererator

+9

Response time1 day
107 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Storm Guardian Generators
Storm Guardian Generators
4.0(
12
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Tomball, 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%
37 neighbors recently requested a quote
Avatar for Strategic Electrical Solutions, LLC
Strategic Electrical Solutions, LLC
5.0(
25
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Tomball, 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 time6 hrs
Response rate96%
7 neighbors recently requested a quote
Avatar for ARK Electrical Service
ARK Electrical Service
5.0(
10
)
Fixed Generator - Install

Serving Tomball, TX and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Warranties offered

"I had an issue in which none of the lights or receptacles worked in the master bedroom and master bath in one of my rent homes so I assumed one of the branch circuit breakers in the panelboard needed to be replaced. Jonathan troubleshooted the situation and determined the issue was actually five wires wired to the same terminal in the panelboard which over the years eventually caused the problem. He quickly rewired the wires to have each landing on their own terminal point, and the problem was solved for a very reasonable price. It is so great finding a contractor who is both knowledgeable and honest. I have found my electrician for any future electrical issues on my rent houses as well as my own home."
6 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for E. A. Solar & Home Services, LLC
E. A. Solar & Home Services, LLC
5.0(
18
)
Fixed Generator - Install

Serving Tomball, 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

+5

5 neighbors recently requested a quote
Recommended by61%of homeowners
...
Showing 1-10 of 266
Generator Install FAQs, 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.

Potential benefits of using a natural gas generator include reducing your carbon footprint, lower likelihood of carbon monoxide exposure, budget-friendly operating costs, and low-maintenance, continuous fuel supply. Some possible drawbacks, though, include higher initial installation costs, dependency on a natural gas supply, and installation complexity. Keep in mind that pros and cons will vary based on the type and brand of natural gas generator. 

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

Energy output depends on turbine size, average wind speed at your site, and system efficiency. A 5 kW turbine in a good wind location can generate 8,000 to 12,000 kilowatt-hours per year, which may cover a large portion of an average home’s needs. Accurate output estimates require a professional wind assessment and a review of your household’s energy usage patterns.

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

The Tomball, TX homeowners’ guide to generator installs

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