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Avatar for Armored Power Systems LLC
Armored Power Systems LLC
5.0(
11
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Forest Hill, TX and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Armored Power Systems is the backup power company for homeowners and businesses west of DFW. We design, install, service, and maintain backup power systems to ensure that your property stays energized through the storm.\n\nOur services include standby generator installation, solar energy systems, battery storage, automatic transfer switches, surge protection, load management, electrical upgrades, and generator maintenance, diagnostics, and repair.\n\nAs a licensed Texas electrical contractor and authorized Generac dealer, we provide professional installation, electrical integration, system startup, testing, and ongoing support. We focus on clean workmanship, clear communication, and properly designed systems that are ready when the grid goes down.\n\nBased in Santo, Texas, we serve Parker, Palo Pinto, Erath, Eastland, and Tarrant counties. Contact us to schedule a backup power consultation, service appointment, or installation estimate.\n\n- The Backup Power Company\n

My jobs
My jobs
My jobs
My jobs
My jobs

+13

16 neighbors recently requested a quote
Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
5.0(
5
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Forest Hill, TX and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Emergency services offered

Tri-State Water, Power & Air has been provided products designed to improve the comfort and quality of life of our customers since 1992. Our specialty is Automatic Home Standby Generators. \nWe expect customer service excellence and aim to go above and beyond on every call. With 10 locations across 8 states, Tri-State is always ready to serve you.

Additional Photos
113 neighbors recently requested a quote
Avatar for Wilder Electric, LLC
Wilder Electric, LLC
4.7(
78
)
Portable Generator - Install

Serving Forest Hill, TX and surrounding areas

Approved

In business since 2018

Emergency services offered

Warranties offered

"Christopher did an amazing job installing a new light fixture over my bathroom sink. He was on time, cleaned up the work area, and even took the time to teach me some things. I highly recommend this company. Will definitely use them again!"
Soda Shop
patio plug
She plug
The Brian house
Front

+34

Response time6 hrs
Recommended by98%of homeowners
Avatar for Arc Angel Electrical Solutions, LLC
Arc Angel Electrical Solutions, LLC
4.9(
10
)
Fixed Generator - Install

Serving Forest Hill, TX and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"Went very well. Very professional experienced nice team of guys. Very polite and work efficiently & effectively. They also installed our security cameras. We've worked with & met the owner as well. Always quote price before work is started most of the time when the appointment is scheduled. They always arrive on time or before but send text to give notice when they will arrive. Very dependable & reliable. AWESOME workers."
200 Amp Generac ATS
Generac Generator
12-V Battery install
Panel and EV Charge
Response time1 day
Response rate100%
7 neighbors recently requested a quote
Avatar for LuminX Electrical Contractors
LuminX Electrical Contractors
4.9(
14
)
Portable Generator - InstallPortable Generator - Repair

Serving Forest Hill, TX and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"LuminX is a company I would recommend, they were extremely professional and courteous. I was informed when they were on their way and they did the job quickly and the new outlet was installed right where we needed it. I will definitely be calling them for future jobs and recommend to anyone needing electrical work."
Exterior Lighting
Exterior lighting
Before
Before
Interior

+10

Response time2 hrs
Response rate89%
1 neighbors recently requested a quote
Avatar for Cooper Electrical Contractors, LLC
Cooper Electrical Contractors, LLC
5.0(
2
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Forest Hill, TX and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

COOPER ELECTRICAL CONTRACTORS LLC is the leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!\n

Response time7 hrs
Response rate97%
Recommended by50%of homeowners
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Showing 1-10 of 186
Generator Install questions, answered by experts

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.

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.

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

Costs range from $500 to $2,500, depending on generator type and installation complexity.

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

The Forest Hill, TX homeowners’ guide to generator installs

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