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Top-Rated Generator install pros in Makakilo - Updated Nov 2026

MTN Builders, Inc.
5.0(
6
)
Fixed Generator - InstallFixed Generator - Repair

Serving Makakilo, HI and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

"Tui and his sons provided outstanding service to us, helping resolve an electrical problem we had experienced for years. Our home had too many appliances running on one circuit, which caused the breakers to trip, especially when using the air conditioners. Tui and his sons were able to run a new line to help distribute the electrical load, allowing us to run our AC units without constantly tripping the breakers. Their quick service, knowledge, kindness, and genuine care brought much-needed relief to us, especially in the heat. Beyond solving the electrical issue, they provided peace of mind and showed what it means to serve others with aloha. We are truly grateful for the work Tui and his sons did for our family. We highly recommend them to anyone looking for honest, dependable, and caring electrical service. Mahalo nui loa, Tui to you and your sons!"
Panel
Car Charger
Switch
Lights
33 neighbors recently requested a quote
Keaka Villanueva
New to Angi
Portable Generator - Repair

Serving Makakilo, HI and surrounding areas

Approved

Experienced electrical professional with over 10 years of hands-on experience in residential, commercial, and industrial electrical work. Skilled in installing, troubleshooting, repairing, and maintaining electrical systems while ensuring quality workmanship and job site safety. Experienced in reading blueprints, running conduit, pulling wire, installing panels, lighting, receptacles, and electrical equipment, as well as diagnosing and resolving electrical issues efficiently. Known for being dependable, hardworking, and able to work independently or as part of a team in fast-paced environments. Committed to delivering high-quality work, meeting deadlines, and continuously expanding technical knowledge.my number one goal is to give high quality work, keep the customers safe and be budget friendly all at the same time.

Avatar for Rhema Electric Pacific, LLC
Rhema Electric Pacific, LLC
4.0(
85
)
Fixed Generator - InstallGenerator - Install - For BusinessGenerator - Repair - For Business+1 more

Serving Makakilo, HI and surrounding areas

In business since 2013

Free estimates

Credit card accepted

"The job is half complete, they are waiting for HEC to confirm when electric can be turned off to finish the job of installing a meter on the outside of the house. So far, their service and desire to help ground the electrical outlets has been very good."
Recommended by95%of homeowners
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Generator Install FAQs, answered by experts

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

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.

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.

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

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 Makakilo, HI homeowners’ guide to generator installs

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