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Avatar for Dunn's HVAC, Plumbing & Electrical
Dunn's HVAC, Plumbing & Electrical
New to Angi
Fixed Generator - InstallFixed Generator - Repair

Serving Heflin, AL and surrounding areas

Approved (Corporate)

In business since 2014

Free estimates

Emergency services offered

At Dunn's Heating, Cooling, Plumbing, and Electrical, we know how hard it is to find a Dependable company you can trust. The time-consuming effort can be frustrating and overwhelming. We believe what matters is getting back to what’s important to YOU, so we provide dependable service Dunn right! Dunn's Heating, Cooling, Plumbing, and Electrical is built upon honesty, integrity, and trust. \n\nWe are your local choice for all your HVAC repair, installation, and service needs. We are proud to serve Anniston and Pelham, AL, as well as the surrounding cities. We are family-owned and also family-operated. As a local business, we care about and are invested in the well-being of our community and its future.

13 neighbors recently requested a quote
Mar-Gen Electric
4.4(
23
)
Portable Generator - Repair

Serving Heflin, AL and surrounding areas

In business since 1995

Free estimates

Credit card accepted

"Mar-Gen Electric was timely, very professional, and knowledgeable concerning my electrical project needs and also took extra time to help me understand in layman's terms the necessary electrical repairs needed to upgrade and repair my home's electrical wiring system throughout the whole house so to be compliant with the latest NFPA-70 and the National Electrical Code safety standards concerning my home's dated electrical wiring system at a very reasonable price too. I would highly recommend Mar-Gen Electric."
Response time20 mins
Recommended by90%of homeowners
Avatar for The Home Depot - Generators
The Home Depot - Generators
2.5(
1
)
Fixed Generator - Install

Serving Heflin, AL and surrounding areas

In business since 2003

Free estimates

Small jobs welcome

Today, we're proud to be the world's largest home improvement retailer. In 2,300 stores across North America, we aspire to excel in service – to our customers, associates, communities and shareholders. That's what leadership means to us. That's The Home Depot difference.

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+5

Douglas Electric
New to Angi
Fixed Generator - RepairGenerator - Repair - For BusinessPortable Generator - Repair

Serving Heflin, AL and surrounding areas

In business since 1999

Free estimates

Offers commercial services

Eric offers fast, friendly and courteous service. We use only the best products and are always eager to answer your questions and concerns. We have built our reputation on our commitment to providing quality service, which has earned us an impressive reputation with many valuable customers. Call us directly to speak to an expert!\n\n

Hill Electric
New to Angi
Fixed Generator - RepairGenerator - Repair - For BusinessPortable Generator - Repair

Serving Heflin, AL and surrounding areas

In business since 2014

Free estimates

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 look forward to earning your business! Book with us online or feel free to give us a call today!\n

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Generator Install questions, answered by experts

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

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.

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.

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.

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

The Heflin, AL homeowners’ guide to generator installs

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