Get matched with top generator install pros in Marlow Heights, MD

Q: Are natural gas generators worth it?

• <div><p>While natural gas generators are costly, they&rsquo;re a great option for standby power due to the reliability of natural gas as a fuel source. Unlike other fuels, natural gas is delivered through underground pipes, making outages extremely rare and less likely to be affected by the elements. As long as the area isn&rsquo;t prone to earthquakes, they offer an unlimited supply of natural gas that doesn&rsquo;t degrade over time or require storage in tanks.</p></div>

Q: Can I plug a generator directly into my house?

• <div><p>No, you shouldn&rsquo;t use an extension cord to plug a generator directly into your home without using a transfer switch. That&rsquo;s because systems like pumps and HVAC fans need a steady power source that might not be available directly from your generator alone. If you bypass the circuit breaker box, you risk damaging your electrical system, creating a risk of <a href="https://www.angi.com/articles/how-to-put-out-electrical-fire.htm">electrical fire</a> or electrical shock to you or any workers repairing lines on your local electrical grid.</p></div>

Q: Do I really need a generator transfer switch?

• <div><p>Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for <a href="https://www.angi.com/articles/what-is-an-electrical-emergency.htm">electrical emergencies</a>. 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. </p></div>

Q: Can you run a natural gas generator constantly all day?

• <div><p>Natural gas generators are designed to run for extended periods of time, such as power outages during a natural disaster. Since there&rsquo;s no limit to the supply of natural gas, they don&rsquo;t need to stop for refills. However, generators do need maintenance, including pauses to check and add oil. Constantly running them will also cause a lot more wear and tear, leading to a shorter lifespan.</p></div>

Q: Do installations include unit assembly?

• <div><p>Many services include assembling the unit and securing it in the window. Confirm with your provider.</p></div>

There are 8 highly-rated local generator install pros.

Verified Reviews for Generator Install pros in Marlow Heights, MD

*The Angi rating for Generator Install companies in Marlow Heights, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Marlow Heights, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on October 25, 2025

Reviewed in November 2023
We have used Gus and his team for 3+ years. He has proven a reliable and versatile general contractor, helping us navigate major repairs from water damage to major remodeling of our living, dining, and kitchen areas. He is honest, creative, and assessable. 5-stars plus!
First Home Improvements, Inc.
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Reviewed in April 2022
John was very knowledgeable and helpful during the estimate and quote generation. Lexus was a great technician, talked through the process and ensured all questions were answered. The poly foam install and bookmarking took just over an hour and glad to have chosen this company.
PLY Solutions, LLC
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Reviewed in November 2016
Awesome job! Meticulous workmanship, knowledgeable staff & a solid installation, producing a truly professional result. They repaired the unit, installed the "hide" system on the exterior of the house & even painted the containment structure to match my brick exterior so it's not noticeable to...
Perry Aire Services Inc
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Reviewed in August 2016
CET gave me a 4-hour window which I wasn't too happy about because customers generally want to know an exact time but they responded to my initial inquiry and had a fare price which is why I decided to use them. The tech called 30min before showing up and was right on time at 9am. He was...
Certified Electrical Technologies
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Reviewed in June 2015
My interior designer, familiar with R. Bratti products, directed me to this company. I am glad she did: R. Bratti fabricated and installed a beautiful marble countertop. An inept plumber, brought in by the general contractor, mounted the faucet using plumber's putty. Plumber's putty must never...
R Bratti Associates
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Reviewed in September 2014
I was satisfied with what they did. It was expensive. They were very responsive and they come when we need them. They are not cheap but whatever we get from them is good quality. We did have to have the generator serviced because it wasn't working properly. It was a problem with the...
New Age Lighting
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Reviewed in April 2012
Terrific experience. Eric was generous with his time and information when I called for the appointment. He gave me a solid price for the work and was flexible in scheduling. He arrived right on time, worked swiftly and expertly. I would definitely hire him in the future.
J & G Electric Co Inc
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Reviewed in September 2011
Overall, we were very pleased. Gene did all of the work in an efficient manner and brought in experts as needed. For instance, he brought in an electrician to handle one part of the project and he also had a co-worker to help handle the complicated tiling. Gene is very laid back and...
Stowe Contracting -Transformative Innovations
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Reviewed in January 2011
I have a semi-enclosed portion of my basement located under the sleeping porch at the back of my townhouse. I am enclosing it to use as my laundry room. One of the final steps was installing a door. There was no existing frame, just irregular bricks forming a doorway. The door needed to be...
Wall to Wall Construction, Inc
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Reviewed in July 2010
The contractor, David Robertson, was responsive from the start. He conducted an in-person visit and gave an estimate on the same day I called. The job was scheduled quickly and the contractor showed up on time. Generally, the work was thorough and of fair quality. However, it was clear that...
Something Different Contracting
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