Get matched with top generator install pros in Marydel, DE

Q: What can I run on different generator sizes?

• <div><p>Here&rsquo;s what you can run with different wattages and types of generators:</p><p>Portable generator:</p><ul><li><p>2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. </p></li><li><p>4,000 watts will keep two large appliances operating and a few smaller devices.</p></li><li><p>8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.</p></li></ul><p>Partial to whole-house generator:</p><ul><li><p>20,000 watts and above will make it seem like your home&rsquo;s power is still on.</p></li></ul><p></p></div>

Q: How do I know what size generator I need?

• <div><p>When <a href="https://www.angi.com/articles/what-size-generator-do-i-need.htm">choosing the right size generator</a> for your needs, consider a few items to help calculate the wattage you&rsquo;ll need. Start by determining which household items and appliances you want to power, and then add the wattages together. Check out the wattage of these essential appliances:</p><ul><li><p>Refrigerator: 600 watts</p></li><li><p>Large dehumidifier: 700 watts</p></li><li><p>Large window air conditioner: 1,400 watts</p></li><li><p>Water heater: 3,000 watts</p></li></ul><p>Running home appliances like these requires a partial or whole-house generator. A portable generator may be enough to power your home if you only plan to keep a refrigerator and freezer running. </p></div>

Q: Do you have to turn off the main breaker when using a generator?

• <div><p>As a safety measure, you should always turn off the main breaker while operating your generator&rsquo;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.</p></div>

Q: How big of a generator do I need for a transfer switch?

• <div><p>You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator&rsquo;s largest outlet is 30 amps, you&rsquo;ll need a 30-amp transfer switch.</p></div>

Q: What’s the lifespan of a natural gas generator?

• <div><p>When properly maintained, natural gas generators can last a long time, as much as <b>20 to 40 years</b>. They have relatively few needs compared to generators with other fuel types. However, the generator&rsquo;s lifespan ultimately depends on how often the generator is used and for how long it&rsquo;s left running.</p></div>

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Verified Reviews for Generator Install pros in Marydel, DE

*The Angi rating for Generator Install companies in Marydel, DE 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 Marydel, DE 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 January 13, 2026

Reviewed in March 2025
I highly recommend Triple J Electric. John did a great job installing lights in my bedrooms. He was polite, knowledgeable and he explained everything he was going to do. His prices are good and he completed the job quickly. He is a great electrician. Thanks John for a job well done.
Triple J Electric
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Reviewed in January 2025
I hired EZ Remodeling for some small project at my house and I am so happy how fast and professionally they were done . Kitchen faucet install Tv hang on the wall Install new ceiling fan Cabinet installed in my closet
EZ Remodeling
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Reviewed in May 2024
Rudy was a pleasure to work with he took care of my un invited birds. He was able to remove the nest and install new vent covers to prevent this from happening again.
Fuessel Pest LLC
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Reviewed in March 2024
Very pleased with install and Tim White came to do a service call He was very prompt and professional. Highly recommend. William Saunders
West Shore Home Salisbury
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Reviewed in September 2021
Tony and Glen did an excellent job installing my new front door. They persevered thru a couple of issues that arose, they were courteous, clean up was completed and finished the job in one day. The only reason for a four instead of five star rating is the cost. I chose West Shore because I had...
West Shore Home Chattanooga
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Reviewed in January 2021
Iconic Roofing was a wonderful company to work with! From the time I was contacted immediately to schedule an estimate to the final walk through of the project, Bryan was excellent with customer service and quality service delivery. I was shocked at how quickly this company completed my roof...
Iconic Roofing & Exteriors
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Reviewed in May 2020
Jeff and Trevon did an excellent job. Far superior than General Flooring of Dover company did when they installed the carpets. Looks GREAT and cost was fair. Jeff and Trevon were professional.
Vivid Colors Carpet Cleaning
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Reviewed in February 2020
The crew came out and replaced our 100 year old oil boiler with a new gas boiler and a new gas hot water heater. They were always on time for the appointments, estimate and installs. They were courteous, and careful with our ensuring they were not tracking through the house. when the install was...
Summit Heating and Air Conditioning LLC
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