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Verified Reviews for Generator Install pros in Mountain View, HI

*The Angi rating for Generator Install companies in Mountain View, HI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Mountain View, HI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on April 19, 2026

Find Generator install pros in Mountain View

Avatar for DKN Electrical
DKN Electrical
4.9(
95
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Mountain View, HI and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Small jobs welcome

Credit card accepted

"Whole house electrical wiring. Kyle is smart and quick. He is willing to go above and beyond to ensure good results. Easy to work with. Hired him again for my next project!"
OVERVIEW OF KITCHEN PLUS LIVING
KITCHEN/LIVING
Upgrade of Fixtures
Upgrade of Fixtures
Upgrade of Fixtures

+6

Response time1 day
Response rate93%
2 neighbors recently requested a quote
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Avatar for Ultimate Electric LLC
Ultimate Electric LLC
4.3(
6
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Mountain View, HI and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Best electric company in Kona! I’m absolutely blown away by the level of professionalism and dedication Ultimate Electric provided me on many of my renovation projects. 100% satisfied with Daniel and his crew. He is always on time every time, consistently fast, easy to deal with and fairly affordable. I highly recommend!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+34

2 neighbors recently requested a quote
Recommended by100%of homeowners
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Big Patriot Home Remodeling
New to Angi
Generator - Install - For Business

Serving Mountain View, HI and surrounding areas

In business since 2020

Free estimates

Emergency services offered

Big Patriot Home Remodeling 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.

Response time20 mins
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Blaz's Handyman Services
New to Angi
Portable Generator - Repair

Serving Mountain View, HI and surrounding areas

In business since 2021

Credit card accepted

Offers commercial services

Blaz's Handyman Services, 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.

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FIX'd The Handyman
New to Angi
Portable Generator - Repair

Serving Mountain View, HI and surrounding areas

In business since 2021

Free estimates

We take great pride our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

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Generator Install questions, answered by experts

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

In most cases, there are no tax credits available for home generators. However, that’s a general statement that applies to federal tax credits, so you might have access to state or local tax incentives. You can check the Database of State Incentives for Renewables & Efficiency (DSIRE) for more information about your area. If you hire a reliable home generator installer, they should also know if there are any state or local perks you can use to reduce your installation costs, including tax breaks and rebates.

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 Mountain View, HI homeowners’ guide to generator installs

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

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