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Avatar for Tech Connect Electric LLC
Tech Connect Electric LLC
5.0(
23
)

Serving Blacksburg, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"The customer service was impeccable. They were honeat, fair, and super friendly. Without a doubt I would hire this team again for any electrical needs in the future."
Under cabinet LEDs
Before
After
Response time7 hrs
5 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Buddy Electric
Buddy Electric
5.0(
6
)

Serving Blacksburg, VA and surrounding areas

Approved

In business since 2023

Free estimates

Warranties offered

"From the contact call to Ben to the work the done by Awan, the service work call couldn't have gone better. A promised arrival time to do my repair was right on schedule. Awan was professional in every way giving me the confidence that his work would be first rate and it was ***** Buddy Electric will be my go to company for any Electrical Service work that I may need help with in the future."
Ballroom
Main Hall
Main Chandelier
Sammy!
Buddy Crew at Work

+5

Response time10 hrs
Response rate97%
22 neighbors recently requested a quote
Avatar for Bob Garrett Services
Bob Garrett Services
New to Angi

Serving Blacksburg, VA and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

Bob Garrett Services is a Class A Contractor specializing in whole-home generators, HVAC, and plumbing. For nearly two decades, we’ve served customers with our hallmark quality in the Roanoke, Lynchburg, and New River Valleys. Whether you need help with standby whole-home generators, tankless or conventional water heaters, HVAC, or plumbing repair, you can count on Bob Garrett Services.

28 neighbors recently requested a quote
Avatar for Maxfield Electric, LLC
Maxfield Electric, LLC
5.0(
7
)

Serving Blacksburg, VA and surrounding areas

Free estimates

Warranties offered

Credit card accepted

"Excellent. Alex was very professional and did an outstanding job for us. We have used his company and 3 occasions and I highly recommend him for both home and business electrical needs"
Barn meter/panel installation
Warehouse addition lights and power
Heated Floors
Warehouse and Garage
Warehouse addition lights and power

+42

Response time1 day
Response rate100%
Recommended by100%of homeowners
Vertex Contracting
5.0(
5
)

Serving Blacksburg, VA and surrounding areas

In business since 2010

Free estimates

Credit card accepted

"Alex & his crew at Appalachian Property Maintenance did a fantastic job at replacing my basement stairs & drywall after they had to be torn out for foundation repair. They were able to get to the job within a week and completed the job within a few days. They also did quality work and it cost a lot less than I expected."
Response time1 day
Response rate90%
6 neighbors recently requested a quote
Showing 1-10 of 23
Generator Install questions, answered by experts

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

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. 

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.

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.

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

The Blacksburg, VA homeowners’ guide to generator installs

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