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TRUSTED BY WHITE PLAINS, MD HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon18
    Verified generator installs reviews

Top-Rated Generator install pros in White Plains - Updated Nov 2026

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

Serving White Plains, 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."
4 neighbors recently requested a quote
Recommended by53%of homeowners
Calvert Generator
New to Angi
Generator - Install - For Business

Serving White Plains, MD and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

Calvert Generator is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business. \n

Response time10 hrs
Frequency Enterprise
3.5(
1
)
Generator - Install - For Business

Serving White Plains, MD and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

We offer over 15 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation for additions and remodels, as well as wiring and panel upgrades, and a variety of other jobs. We are committed to providing personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients, and guarantee your satisfaction.

Response time6 hrs
Recommended by100%of homeowners
Avatar for Ethridge Electric & Generator Services
Ethridge Electric & Generator Services
4.8(
33
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Repair - For Business

Serving White Plains, MD and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"Ron Ethridge has been our Electrician of chose for the past three years. I started out using Ron to service my generator after the warranty lapsed. Heâ  s provided that big company expertise with that small organization connection. Since that time Ron and his team have provided electrical services for our entire home. I feel comfortable leaving Ron in our home while weâ  re away which is a huge feat for me particularly. Iâ  m grateful for the service that Ron and his team continues to provide to our family."
Panel Change/Heavy Up
Panel Change/Heavy Up
Panel Change/Heavy Up
Recessed Lighting
Recessed Lighting

+1

Response time2 hrs
Recommended by100%of homeowners
A & J Little Electrical Services, LLC
4.6(
19
)
Generator - Install - For Business

Serving White Plains, MD and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"They want to work and get pay by hour,but have an open end,I don't want to pay too much to working on a few hundreds dollar generator,and then if he can't not fix after 2 hrs,what can I do?still have to pay $200.00(or more) for nothing.I think if they have a quote for the job,it will be better.(note:my generator is almost new,use less than 1/2 hrs)"
Response time1 day
Recommended by94%of homeowners
Avatar for Dynatemp Inc
Dynatemp Inc
4.0(
148
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving White Plains, MD and surrounding areas

In business since 1980

Emergency services offered

Credit card accepted

"The guy was on time and nice enough, if a little standoffish. That's okay, I don't like pushy salespeople, either.  But he seemed reluctant to give me any information at all. I said I wanted to install a system as soon as possible, he offered "maybe in the spring." It's the dead of winter right now. Every other contractor I've had out is willing to do the work next week. Again, standoffish and strange.
He had no pamphlets, no brochures, and nothing to sell. I didn't learn anything about the company or the kind of work that would be done. I'm not at all sure what systems he was going to send me proposals for, but it's been two days, and he hasn't sent me the proposal yet. I've already got three other proposals within the same two day timeframe, have made my decision, and am getting it installed next week. Dynatemp has still sent me nothing. I guess they were way too busy.

UPDATE - Since posting this review, the company has responded by email and apologized for the delay. I've changed the grade of the overall experience so as to not unfairly weight down their overall grade.

UPDATE #2 - I see in the response section that they're saying the guy came out on Thursday. Not true. I even looked at my phone records to confirm it. The guy called me Wednesday at 12:26pm to say he'd be there within half an hour. He was there at 1pm on 2/13. I posted this review on Friday late afternoon, 2/15, well beyond a 48 hour period. Only then, after the negative review, did I hear from them on Saturday morning. I even conceded a bit and updated my review to give them a B grade to reflect such! I'd be weary of dealing with a company that argues over the day they showed up."
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+3

Recommended by86%of homeowners
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Generator Install FAQs, answered by experts

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

If you’re wondering whether gas generators produce carbon monoxide, know that natural gas generators do not produce carbon monoxide if they are functioning properly, as natural gas burns cleanly. However, if the generator malfunctions and the gas does not burn completely, there is potential for carbon dioxide to be produced. To prevent malfunctions, it's crucial to perform regular maintenance, including running the generator weekly and scheduling professional inspections every 6 to 12 months. Also, be sure to test your carbon monoxide detectors regularly to ensure they function in the rare case of the generator producing carbon monoxide.

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.

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.

The White Plains, MD homeowners’ guide to generator installs

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