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TRUSTED BY GLEN ARM, MD HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon19
    Verified generator installs reviews

Find Generator install pros in Glen Arm

Avatar for Tim Kyle Electric Heating & Cooling
Tim Kyle Electric Heating & Cooling
4.9(
370
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Glen Arm, MD and surrounding areas

Approved

Super Service Award Winner

In business since 1986

Emergency services offered

Warranties offered

"Can't say enough about how smooth a process this was, from permitting to planning, installation to startup. Ryan and his team were very professional, very clean and thoughtful throughout. Very responsive and friendly in their communications and the work is outstanding. Looking forward to their help for many years to come."
Additional Photos
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Additional Photos

+17

Response time1 day
Response rate100%
26 neighbors recently requested a quote
K&K Electric
4.9(
36
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Glen Arm, MD and surrounding areas

Approved

In business since 2007

Free estimates

Warranties offered

"I hired K & K to install a range hood. There was no electrical there previously so they had to run electric. I also had them install a new light fixture and remove an exhaust fan. K & K did excellent work and even repaired an electrical box that another contractor had installed. I was given a great estimate and was charged the estimate price. Would definitely use again and recommend."
Response time5 hrs
1 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Electrical USA, Inc.
Electrical USA, Inc.
4.3(
42
)
Fixed Generator - Repair

Serving Glen Arm, MD and surrounding areas

Approved

In business since 1986

Free estimates

Credit card accepted

"GENERAC Maintenance and Repair. I just used Electrical USA for my home back up generator service and repair. They did a fantastic job very affordable, prompt and thorough. Definitely recommend them!"
Response time4 days
78 neighbors recently requested a quote
Recommended by71%of homeowners
Avatar for Benfield Electric Co., Inc.
Benfield Electric Co., Inc.
4.6(
13
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Glen Arm, MD and surrounding areas

Approved

In business since 1968

Warranties offered

Small jobs welcome

"The salesperson that came to look at the job/s was extremely professional. He helped me fix and overhead light and changed all of my kitchen recessed lights during our meeting. The price he quoted was $700.00 less then Mr. Electric. The work was completed the next day. They electricians were great. The only reason I didn't give an "A" on quality is because when they replaced a GFI with a new bright white switch, they left the old dingy ivory switch plate on it. It is a totally eye sore. i would have paid the extra for a new white switch plate. I didn't notice it until they left. I would have certainly said something. Great job over all. I would use again!"
Additional Photos
Additional Photos
Response time1 day
Response rate100%
8 neighbors recently requested a quote
Avatar for Artisan Electrical LLC
Artisan Electrical LLC
4.6(
21
)
Fixed Generator - Install

Serving Glen Arm, MD and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Very friendly from the technician to the secretary. They got me in fast worked with my schedule and got out fast. They also mounted my ring doorbell.. Excellent service and the price was awesome"
Fixed Generator Install
Fixed Generator Install
Fixed Generator Install
Fixed Generator Install
Fixed Generator Install

+2

Response time1 day
7 neighbors recently requested a quote
Recommended by68%of homeowners
Avatar for Calvary Electric LLC
Calvary Electric LLC
5.0(
13
)
Fixed Generator - Install

Serving Glen Arm, MD and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"They did a great job capping the live wires from a wall we tore down and got our recessed lighting in the basement working with the switches. Reasonable priced and professional. Very considerate of the space and timely in completion."
Whole House Generator
Kitchen Remodel
Kitchen Remodel
Additional Photos
Additional Photos

+13

Response time4 days
Response rate100%
4 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.

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.

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

If your home already has a grinder pump and you’re still noticing issues (like frequently clogged toilets and sinks), it could be time to upgrade your grinder pump. Start by checking your existing horsepower. If there are four or fewer people living in your home, using a 1/2-horsepower grinder pump should be sufficient. Larger households should consider investing in a 1-horsepower grinder pump to maximize wastewater removal efforts.

The Glen Arm, MD homeowners’ guide to generator installs

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