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Avatar for Custom Electrical Services, LLC
Custom Electrical Services, LLC
4.5(
95
)
Fixed Generator - Install

Serving Williamsburg, IA and surrounding areas

Approved

In business since 2005

Emergency services offered

Warranties offered

"I was having an exterior outlet installed. The job was quickly evaluated and an estimate was provided. I didn't really see a break down of materials versus labor, so I'm not completely sure of the basis for the costs. It was super convenient with very quick response. They made sure that the work area was cleaned after completed. Very friendly tech. Very comfortable having them in my home."
Ceiling fan and cans
Commercial Service
Electric garage heater.
LED lighting Commercial
Generator Installation

+33

Response time12 hrs
Response rate88%
Recommended by91%of homeowners
Avatar for WireOne
WireOne
4.2(
118
)
Fixed Generator - InstallPortable Generator - Install

Serving Williamsburg, IA and surrounding areas

Approved

In business since 2010

Credit card accepted

Customers say: Quality work

"The price was higher than other estimates but I got the feeling that they really knew what they were doing and the electricians made a couple of suggestions that really turned out to be good ones. They did a very high quality installation and couldn’t have been more professional and cordial."
Wireone Work
Wireone Work
Wireone Work
Wireone Work
Wireone Work

+5

Response time11 hrs
43 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for DOWN THE ROAD ELECTRIC INC
DOWN THE ROAD ELECTRIC INC
5.0(
19
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Williamsburg, IA and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"Jesse is a very pleasant young man, fully trained and capable of any electric repair or installation. He came on time, did his work quickly and cleaned up after himself. I am very satisfied and will call "Down the Road Electric" again when the need arises. Rick Ruppert, retired Accountant and homeowner."
3 neighbors recently requested a quote
Recommended by63%of homeowners
HOEKSTRA ELECTRIC LLC
5.0(
4
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+2 more

Serving Williamsburg, IA and surrounding areas

In business since 2024

Free estimates

Emergency services offered

"Trent from Hoekstra Electric did a great job at installing some new outlets for me in my office in my basement. I had called to inquire about if it would be possible to get outlets in my office and a rough idea on what it would cost. When Trent showed up, he offered to get them installed for me right then and there - totally awesome!! It is been amazing having more spaces to hook my different machines into. Not only was Hoekstra Electric able to get to my issue fast, they were also super kind and very professional. I would definitely recommend them!"
Home remodel wiring upgrades
Bathroom fan install
Can Lights Install
Outlet Updates
Outlet Update

+1

Response time1 hour
Recommended by66%of homeowners
Donovan Electric, LLC
5.0(
4
)
Fixed Generator - Install

Serving Williamsburg, IA and surrounding areas

In business since 2023

Free estimates

Emergency services offered

"Mr. Donovan installed two new electrical panels to replace outdated panels in my home. From the initial bid to the completion of the job, Bill was courteous, professional and was a great communicator every step of the way. I would definitely recommend Donovan Electrical based off of competitive prices, professionalism and great customer service."
Response time4 days
Recommended by25%of homeowners
Gen 3 Electric Co. LLC
5.0(
1
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Williamsburg, IA and surrounding areas

In business since 2023

Free estimates

Emergency services offered

With over 10 years of industry experience Gen 3 Electric Co. is your local electrician. We take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring/panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

200A Service Upgrade
Basement Lighting Upgrade
Personal Shop
Personal Shop
Amana Basement

+3

Response time2 days
Recommended by100%of homeowners
Mr. Electric of Iowa City- Cedar Rapids
New to Angi
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Williamsburg, IA and surrounding areas

In business since 2023

Free estimates

Emergency services offered

Here at Mr. Electric of Iowa City - Cedar Rapids, we have the power to make things better. Call us today for electrical repair near you, and we’ll make sure the electrical components at your property are up to code. We perform electrical inspections Johnson and Linn County can trust, free of charge!

Mr. Electric Service Professional by the Van
Mr. Electric Tool Mat
Mr. Electric Service Professional Shaking Hands
Avatar for Cannon Solar
Cannon Solar
New to Angi
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Williamsburg, IA and surrounding areas

In business since 2023

Free estimates

Credit card accepted

is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.\n

Response time9 hrs
Response rate100%
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. 

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

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.

Natural gas generators are designed to run for extended periods of time, such as power outages during a natural disaster. Since there’s no limit to the supply of natural gas, they don’t need to stop for refills. However, generators do need maintenance, including pauses to check and add oil. Constantly running them will also cause a lot more wear and tear, leading to a shorter lifespan.

If you’re wondering if you can use your electric vehicle as a backup battery, it depends on whether your EV is compatible with bidirectional charging. This technology allows energy to flow both ways, enabling vehicle-to-home (V2H) backup power, vehicle-to-load (V2L) for appliances and camping, and vehicle-to-grid (V2G) to support the power grid. Compatible EVs convert stored DC energy into usable AC power, helping reduce energy costs and enhance grid stability while providing emergency backup power.

The Williamsburg, IA homeowners’ guide to generator installs

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