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4.4

(68 reviews)

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Avatar for Cody Malone Services LLC
Cody Malone Services LLC
5.0(
357
)

Serving Mclean, VA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"I have been hiring Cody Malone since we purchased our house in July 2012. They have switched out outlets, installed indoor ceiling fans, installed outdoor ceiling fans, ran electrical to my outdoor water feature and switched out my light fixtures. I plan to hire them again when I add electric to my detached garage. They always do a great job and arrive when they say they will. I have never had a single issue and they have been to my house for no less than six different projects!"
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Response time4 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for SciFiHomes Inc
SciFiHomes Inc
5.0(
27
)

Serving Mclean, VA and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"SciFiHomes, Inc. did a great job installing our whole-house generator. They are friendly, efficient, reliable. They take the time to do things right and make sure the homeowner understands the equipment."
Cummins Onan 400A ATS
Cummins Onan 20kW
Briggs & STratton Standby Generator
Response time9 hrs
8 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for OC1 Electric
OC1 Electric
4.6(
51
)

Serving Mclean, VA and surrounding areas

Approved

In business since 2009

Customers say: Quick response

"The electrician was prompt, efficient, very knowledgeable, explained the work needed in detail and he completed the tasks in a timely manner. Also, the price for the job was fair and within the pricing guidelines. We will definitely be using this company again. We highly recommend this company."
Response time1 day
1 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Snell Heating & Air Conditioning, LLC
Snell Heating & Air Conditioning, LLC
4.6(
168
)

Serving Mclean, VA and surrounding areas

Approved

In business since 1972

Free estimates

Emergency services offered

"We had a couple of companies give us estimates for replacing our HVAC system. Snell was not the least expensive but after researching systems and costs, I was able to determine that the Lennox system was superior to what the other companies were offering. The installation was completed on one of the coldest days of the year. The install crew was great. They were careful, respectful, efficient, and their workmanship was very professional. They took the time to review the installation components and what our expectations should be with the system. They went over the digital thermostat settings and how to adjust them. They were quick to respond to a concern we had with the humidifier. They completed the work in the time frame we were given."
12 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Image Electric LLC
Image Electric LLC
5.0(
11
)

Serving Mclean, VA and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

"Alex was incredibly professional and honest about the work that was needed for my home - while gathering quotes other technicians tried to up charge me but Alex was up front and honest about the work I needed and provided proof and documentation I would hire Alex to do all of my electrical work for all of my properties currently and in the future."
Security ring camera
10 neighbors recently requested a quote
Recommended by45%of homeowners
Avatar for Mister Sparky
Mister Sparky
5.0(
5
)

Serving Mclean, VA and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

At Mister Sparky®, we know how much you depend on electricity to power your daily life. Luckily, we’re experts when it comes to safeguarding against its inherent dangers and are ready to do the reliable work needed to ensure your home’s electrical systems work for years to come.\n\nOur highly trained, licensed electricians are professional troubleshooters who hunt potential hazards and fix them before they cause serious damage. We show up on time, guaranteed, and deliver 100% satisfaction guaranteed with every service call. And because we’re locally operated, our electricians are familiar with the challenges you might face.

11 neighbors recently requested a quote
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Generator Install questions, answered by experts

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.

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

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.

Yes, installing a generator usually increases your property value because buyers are getting the added peace of mind knowing they’ll be able to maintain power through blackouts. In most cases, you should see close to a 100% return on investment (ROI). Keep in mind that home generators usually need a permanent foundation, and installing a concrete slab will likely raise your property taxes slightly.

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. 

The Mclean, VA homeowners’ guide to generator installs

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