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TRUSTED BY LANGLEY PARK, MD HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon11
    Verified generator installs reviews

Top-Rated Generator install pros in Langley Park - Updated Nov 2026

Green's Electric
5.0(
25
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Langley Park, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2007

Free estimates

Emergency services offered

"This company resolved my electrical issue quickly and professionally. The technician was knowledgeable and clearly explained what was wrong and how they fixed it. I was expecting a longer wait, so I was grateful they could get to me so soon. Pricing was fair and the whole experience was excellent. I def highly recommend this company to anyone needing electrical work done. Thank you!!!"
Response time1 day
Response rate100%
24 neighbors recently requested a quote
Avatar for Elements Of Energy L.L.C.
Elements Of Energy L.L.C.
5.0(
23
)
Generator - Install - For Business

Serving Langley Park, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"I had an excellent experience with Kevin. He installed a very large and complex crystal chandelier in our foyer, and the entire process was handled with exceptional professionalism and precision. This was not a simple installation,the chandelier is heavy, intricate, and required careful assembly and mounting at a significant height,but he approached the job with patience, attention to detail, and clear expertise. He took the time to ensure every component was perfectly aligned and secure, and the final result looks absolutely stunning. The installation was done safely, efficiently, and with great care for our home. I would highly recommend him to anyone needing electrical work, especially for challenging or high-end lighting installations. Truly outstanding workmanship."
Kitchen and Bathroom
Fixtures & Ceiling Fans
LED Recessed lights
EV Charging Stations
Switches & Receptacles

+176

Response time1 day
Response rate93%
9 neighbors recently requested a quote
Technician Engineers Group
3.7(
15
)
Generator - Install - For Business

Serving Langley Park, 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 Langley Park, 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
Elements Of Energy L.L.C.
New to Angi
Generator - Install - For Business

Serving Langley Park, MD and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

We provide services to homeowners and businesses throughout Northern Virginia, Washington D.C. and Maryland. We spend time during each call asking questions to fully assess the situation, and are usually able to determine the best course of action before we send a truck out to your home or business. We?ve been in the business of employing the most knowledgeable, professional, attentive, and courteous electricians in all of ?DMV?. It?s our attention to service and quality, Each appointment made with one of our clients is set up by one of our experienced electricians.

Green's Electric
5.0(
22
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Langley Park, MD and surrounding areas

In business since 2007

Free estimates

Credit card accepted

"They were prompt, courteous, and informative. During the estimation process Darnell was very good and provided a very competitive price. I am pleased with the work done to install a new EV charger on the outside of our house"
1 neighbors recently requested a quote
Recommended by57%of homeowners
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Generator Install FAQs, answered by experts

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

Many services include assembling the unit and securing it in the window. Confirm with your provider.

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

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.

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.

The Langley Park, MD homeowners’ guide to generator installs

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