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TRUSTED BY ALVIN, TX HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon44
    Verified generator installs reviews

Verified Reviews for Generator Install pros in Alvin, TX

*The Angi rating for Generator Install companies in Alvin, TX is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Alvin, TX is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on July 10, 2025

Find Generator install pros in Alvin

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

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

Serving Alvin, 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
13 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for Storm Guardian Generators
Storm Guardian Generators
4.0(
12
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

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

Serving Alvin, 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
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Avatar for E. A. Solar & Home Services, LLC
E. A. Solar & Home Services, LLC
5.0(
18
)
Fixed Generator - Install

Serving Alvin, TX and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Very professional and knowledgeable team. Work was done on time and within a reasonable price. The work area was left as clean as before they started. I highly recommend Aaron and his team and I won't hesitate to call on them again."
Solar system
Solar system
Solar system
Solar system
Solar system

+5

7 neighbors recently requested a quote
Recommended by61%of homeowners
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Avatar for Precision Power Electrical Services LLC
Precision Power Electrical Services LLC
5.0(
13
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Alvin, 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!

13 neighbors recently requested a quote
Recommended by46%of homeowners
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Avatar for ARS/ Rescue Rooter Houston South
ARS/ Rescue Rooter Houston South
4.1(
117
)
Fixed Generator - InstallFixed Generator - Repair

Serving Alvin, TX and surrounding areas

Approved (Corporate)

In business since 1991

Free estimates

Emergency services offered

Providing mechanical repair, maintenance and replacements, services residential & small commercial customer

Generator Installation
Recommended by85%of homeowners
Request Quote
Avatar for Coastal Electrical Services, LLC
Coastal Electrical Services, LLC
4.5(
16
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Alvin, TX and surrounding areas

Approved

In business since 2019

Free estimates

Offers commercial services

"Great service, friendly staff and explained everything. I felt my technician was honest and trustworthy."
Response time9 hrs
Recommended by100%of homeowners
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Precision Services
5.0(
4
)
Generator - Install - For Business

Serving Alvin, 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
Request Quote
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Generator Install questions, answered by experts

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

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.

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.

Whole-house generators need to be installed on level ground several feet away from walls and other objects. Because they tap into the electrical system directly, they usually need to be close to your home electrical panel for a transfer switch installation. It also helps with installation if they are near to a gas line or propane tank installation.

The Alvin, TX homeowners’ guide to generator installs

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

See all articles