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TRUSTED BY NOTTINGHAM, MD HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon24
    Verified generator installs reviews

Find Generator install pros in Nottingham

K&K Electric
4.9(
36
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Nottingham, MD and surrounding areas

Approved

In business since 2007

Free estimates

Warranties offered

"L I put request on Home advisor/Angie's list. Out of all the request this is the only company that responded to my request. Not only did he respond within 30 minutes, he came out the same day, installed my ceiling fan, and finished everything up within one hour. Most kind efficient, professional, and very knowledgeable company. I would definitely use them anytime and every time. Thank you so much, Kevin."
Response time5 hrs
Recommended by87%of homeowners
Avatar for Electrical USA, Inc.
Electrical USA, Inc.
4.3(
41
)
Fixed Generator - Repair

Serving Nottingham, MD and surrounding areas

Approved

In business since 1986

Free estimates

Credit card accepted

"Great job! Generator in need of battery and other maintenance needs. Problem was explained and why. Generator working fine, I strongly recommend this company."
Response time4 days
75 neighbors recently requested a quote
Recommended by73%of homeowners
Avatar for Benfield Electric Co., Inc.
Benfield Electric Co., Inc.
4.6(
11
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Nottingham, 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
3 neighbors recently requested a quote
Recommended by100%of homeowners
Independent Power and Solar LLC
5.0(
2
)
Portable Generator - Repair

Serving Nottingham, MD and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

#1 Customer satisfaction is what determines our success, which is why we take a hands-on approach. You'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Contact us today for a fair and accurate estimate of your project. We look forward to adding you to our long and growing list of happy customers.\n

2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Serene Elec inst & Rep Services LLC
Serene Elec inst & Rep Services LLC
5.0(
6
)
Fixed Generator - Install

Serving Nottingham, MD and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

We are committed to excellence in every aspect of our business. \nWe uphold a standard of integrity bound by fairness, honesty and \npersonal responsibility. Our distinction is the quality of service \nwe bring to our customers. Accurate knowledge of our trade combined \nwith ability is what makes us true professionals. Above all, we are \nwatchful of our customers interests, and make their concerns the \nbasis of our business.

Commercial GFCI Repair
Technician Engineers Group
3.7(
15
)
Generator - Install - For Business

Serving Nottingham, MD and surrounding areas

Approved

In business since 1996

Offers commercial services

Customers say: Quick response

"Anthony and his team do expert electrical work of all kinds. We are a 145 year old non-profit organization with buildings and grounds, and have contracted with Technician Engineers Group (TEG) on two large projects (and several small ones) over the last 15 years. One project rewired a large 125 year old building listed on the National Register of Historic Places, and one installed an extensive outdoor lighting system. In these two unusual situations TEG worked closely with us to find innovative solutions to our unique needs. We are very pleased with the results, enjoyed their can-do approach, and highly recommend this company for any electrical challenge. We found TEG reliable, honest, on time, and all the work was completed ahead of schedule."
Response time2 hrs
2 neighbors recently requested a quote
Recommended by53%of homeowners
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Generator Install questions, answered by experts

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

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.

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

In most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home generators. A permit for a generator usually costs between $50 and $250, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you—and might be required to do so by your building department—but you’ll be on the hook for the cost of the permit. You should ask your installer before agreeing to any work if they will pull the necessary permits for your project.

The Nottingham, MD homeowners’ guide to generator installs

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