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Avatar for All American Electric Services, LLC
All American Electric Services, LLC
5.0(
17
)

Serving Blades, DE and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"I found Trevor to be professional, punctual, knowledgeable, helpful, and reasonable. He came out to troubleshoot an issue with our generator. I was very pleased with the service and would recommend this company to others."
Generac Power Pro Elite Dealer
Guardian Generator Home Application
Guardian Generator with Transfer Switch
Protector Series Home Application
22 - 60 kW Protector Series

+10

Response time1 day
Recommended by94%of homeowners
Avatar for Fleming's Electrical Service
Fleming's Electrical Service
4.9(
97
)

Serving Blades, DE and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

"Brandon and his associate, Billy, did an outstanding job in installing some fans and lights for us. They were punctual, courteous, informative and made everything perfect. Would definitely recommend them. Their pricing was also very reasonable!"
Bryan new home
Bryan new home
Bryan new home
Bryan new home
Old "pushmatic" panel

+31

Response time1 day
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Bright Electrical Solutions
Bright Electrical Solutions
5.0(
42
)

Serving Blades, DE and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"Communication was fantastic and the team arrived right on schedule. The completed the installation in under 2 hours and went about it like professionals. They were very courteous and tidied up after themselves. I am very satisfied with the lighting fixture installation and would definitely hire them again for any electrical work that I can't complete myself."
Response time2 days
4 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Galloway Electrical
Galloway Electrical
4.6(
52
)

Serving Blades, DE and surrounding areas

Approved

Free estimates

Emergency services offered

Customers say: Super punctual

"Excellent. Needed whole new fixture and Chris went to Lowes and purchased it, came back and installed it. He and partner were on time, polite, and knowledgeable."
Electrical Project
Electrical Project
Receptacles
Electrical Project
Electrical Project

+76

Response time10 hrs
Response rate91%
8 neighbors recently requested a quote
Crest Electric
4.9(
29
)

Serving Blades, DE and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Emergency services offered

Customers say: True professional

"I would like to thank Crest Electric and their team for the work they did at my new home. We recently purchased a house in DE, and being new to the area, it was a relief to find a fair and reliable contractor who takes pride in their work. I needed their help with installing recess lighting, raising the electrical outlets, mounting TVs with TV mounts, installing chandeliers, and handling the installation of doorbells, cameras, and floodlights. It was such a relief to have Crest Electric manage this huge project, and they offered a reasonable price without making me feel like I was being ripped off. I highly recommend Crest Electric for their attention to detail and their willingness to make adjustments to ensure that everything is perfect in the eyes of their clients. This is something that a lot of contractors take for granted, but Crest Electric truly understands the importance of meeting their client's needs and preferences. -Michael"
Response time1 day
11 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for ZB Electrical LLC
ZB Electrical LLC
5.0(
14
)

Serving Blades, DE and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Since moving to Delaware 4 years ago I have been looking for contractors to do different jobs around our house. Zach was the most professional, reasonably priced and did what he said he was going to do when he said he was goin to do. His work was clean and accurate. I highly recommend ZB Electrical LLC ."
mirror
Christmas Lighting
Sub Panel
bath light and vent fan
Response time5 hrs
Response rate95%
Recommended by90%of homeowners
Avatar for W B Lightning Rods
W B Lightning Rods
4.6(
367
)

Serving Blades, DE and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"William Burden is the third generation owner of WBLightningRods and his company has been in business since 1950. He is very courteous, professional, was on time, and has a very good crew. William was present for the entire installation. We chose the copper system. We are glad for the peace of mind a lightning rod system will provide."
lightning protection
 Residential LPS
lightning protection
 Residential LPS
lightning protection

+79

Response time1 day
63 neighbors recently requested a quote
Recommended by98%of homeowners
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Showing 1-10 of 95
Generator Install questions, answered by experts

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’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

The average cost to install a home generator is $5,200, but total costs can range from $500 to $18,000 or more. The final price depends on several factors, including the generator's size, type, brand, fuel source, and the cost of labor and assembly. The generator's size is the most significant cost factor, as units that can power larger homes with higher energy demands cost more.

Cost breakdowns by generator type are typically as follows:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500–$2,000

  • Partial-Home Generators (9kW–20kW): $2,000–$6,500

  • Whole-House Generators (22kW–48kW): $5,000–$18,000

To ensure you get the right size unit for your needs without overpaying, consider hiring an electrician to calculate the electrical load of your essential appliances. It is also recommended to get at least three quotes from qualified installers to find the best fit for your budget.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

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.

The Blades, DE homeowners’ guide to generator installs

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