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Avatar for Randolph Electrical Contracting
Randolph Electrical Contracting
4.9(
41
)

Serving Oak Ridge, MO and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"They gave me a very good bid, showed up when they said they would and completed the job in less then half a day when it was estimated for a full day. We already talked about a future project. Very pleased"
400 amp Ameren meter base
Washer/Dryer Outlets
New Hot water Heater
Main Panel
Meter base and Mast

+2

Response time5 hrs
Response rate91%
9 neighbors recently requested a quote
Avatar for Sanchez Electric & Remodeling, LLC
Sanchez Electric & Remodeling, LLC
4.9(
16
)

Serving Oak Ridge, MO and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"The electrician that came to my house was very courteous, very efficient and knowledgeable. He quickly found that the circuit breaker was bad, and replaced it. He made sure that the outlet that was affected was working and showed me. The bill was very reasonable, I will call them again if I need any more electrical work."
Response time1 day
4 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for VMK Remodeling
VMK Remodeling
4.2(
19
)

Serving Oak Ridge, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"Very pleased with the quality of the kitchen cabinet installation. Company we contacted with for counter tops also commented on the quality of their work. Customer service was excellent. They arrived as scheduled and quickly responded to messages. Work was done well and on time."
Response time2 days
Response rate90%
60 neighbors recently requested a quote
Avatar for CW Electric
CW Electric
5.0(
2
)

Serving Oak Ridge, MO and surrounding areas

In business since 2020

Free estimates

Emergency services offered

"Chris was professional and polite. He completed the work quickly and without any mess. He installed multiple outlet boxes in my finished basement and ran underground wiring from my basement main breaker box to my workshop. In the workshop he installed a new breaker box, 2 outlet boxes, an outside outlet, and a LED light fixture with matching wall-switch."
Panel
Panel meter
New Panel
Old panel
Cover

+5

Response time3 hrs
Response rate93%
Recommended by100%of homeowners
B&H Electric
5.0(
1
)

Serving Oak Ridge, MO and surrounding areas

In business since 2020

Free estimates

Credit card accepted

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

Response time1 day
Recommended by100%of homeowners
Showing 1-10 of 16
Generator Install questions, answered by experts

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. 

Whole-house generators need to be installed on level ground several feet away from walls and other objects. Because they tap into the electrical system directly, they usually need to be close to your home electrical panel for a transfer switch installation. It also helps with installation if they are near to a gas line or propane tank installation.

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

Yes, in most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home models. Because these installations involve significant alterations to your home's electrical system and produce exhaust fumes, local governments often require a permit or inspection for safety purposes. A generator permit typically costs between $50 and $250, depending on your location. Your electrician or certified installer can usually handle the permitting process for you, but you will be responsible for the cost. It's a good practice to confirm with your installer that they will pull all necessary permits before work begins.

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.

The Oak Ridge, MO homeowners’ guide to generator installs

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