
Serving Haleiwa, HI and surrounding areas
Approved
In business since 1987
Free estimates
Emergency services offered
"Anthony was outstanding! He diagnosed the problem, discussed repair strategies and completed the job. He's TOPS!!!!"





+7


Serving Haleiwa, HI and surrounding areas
Approved
In business since 1987
Free estimates
Emergency services offered
"Anthony was outstanding! He diagnosed the problem, discussed repair strategies and completed the job. He's TOPS!!!!"





+7
Serving Haleiwa, HI and surrounding areas
Approved
In business since 2016
Free estimates
Credit card accepted
Oahu Electric & Air provides licensed, code-compliant electrical services for homes and businesses across Oahu. From troubleshooting and repairs to new installations, lighting, panel upgrades, and EV charger setups, our electricians handle projects of all sizes with precision and care. Every job is completed in-house by licensed professionals and built to meet current NEC and City & County of Honolulu requirements - delivering safe, reliable electrical work you can trust.

Serving Haleiwa, HI and surrounding areas
Approved
Free estimates
Warranties offered
Small jobs welcome
"Mana Mechanical’s owner, David, is a responsible professional who takes his commitments seriously. I needed to replace our old rooftop AC duct urgently. David was the only one who committed to meeting our aggressive schedule. He was honest with me that this would be his new company’s first job. I was a bit anxious, but decided to take a chance because I was impressed by his diligence during his on-site inspection. David acted as the general contractor, hiring engineers, electrician, crane operators, etc. His operation was flawless despite several unforeseen challenges, which he spent extra time and energy resolving himself. He even took extra work not included in original agreement staying late to finish them after his team had gone home. Even after the job was finished and paid for, he provided a detailed report with recommendations for other concerns he noticed on our rooftop. I am so grateful to have met David and highly recommend Mana Mechanical for your next project."
Serving Haleiwa, HI and surrounding areas
Approved
In business since 1987
Credit card accepted
Offers commercial services
Here at Steve's Plumbing & AC Service, Inc., we are a Maui plumbing and air conditioning contracting company that specializes in AC repair and replacement, plumbing repair, service work, and remodeling. We have the experience, manpower, and inventory necessary to handle any project, no matter whether it is large or small. We are also a family-owned and operated business. We are committed to providing excellent workmanship and high-quality products for every project we undertake. We offer a 100% customer satisfaction guarantee and 24-hour emergency services. Up Front Pricing - You approve the cost before we start the work. We charge by the job, not the hour. No one wants surprises when the job is done! Fast Service, Emergency Service. Radio Dispatched, Fully Stocked Trucks in Your Area Daily. When you have an emergency, you need to know it will be fixed in a hurry. We understand and can be there within hours not days! Trusted and Recommended ,Call Us Today!

Serving Haleiwa, HI and surrounding areas
In business since 2021
Free estimates
Credit card accepted
"I haven’t cleaned my split AC unit for over a year. Called Paradise Ac to come and check it out. Lance the owner was really professional and responsive. He cleaned out all the mold and dust in the unit that I couldn’t see. My Ac is blowing cleaner air and it makes a big difference. I highly recommend Paradise Ac for all your service needs."





+44

Serving Haleiwa, HI and surrounding areas
Emergency services offered
Credit card accepted
"They not only arrived on time but were very thorough and efficient in their services and in the information they provided me about my AC system and suggested a cleaning every 6mths which I now know and will continue to do to keep my family and house cool and clean air! Thank you sooo much Ultimate Air!???"





+36
Serving Haleiwa, HI and surrounding areas
In business since 2020
Free estimates
Emergency services offered
"Super awesome! They’re such friendly people and they did an amazing job at cleaning my ac. Would definitely hire them again!"





+2

Serving Haleiwa, HI and surrounding areas
In business since 2010
Emergency services offered
Credit card accepted
"very professional service and completed in a timely manner"



Serving Haleiwa, HI and surrounding areas
In business since 2020
Free estimates
Emergency services offered
"These guys keep in touch and in communication from the very start to the very end of the job. They were really friendly and did a really great job! Yes, the appliances were heavy, but with their professionalism and friendliness, it just made the task a lot more pleasant. They are super easy to work with and is very flexible. Highly recommended! Yes, will hire again!"





+53

Serving Haleiwa, HI and surrounding areas
In business since 2009
Free estimates
Emergency services offered
"Wonderful. They did a great job of engineering the PV needs for house, installing system, cleaning up afterwards. We are so happy we used Revolusun for our PV! And the great cost savings, of course!
"
Converting from an oil furnace to an electric furnace isn't a simple swap—the oil system needs to be completely removed before installing the electric furnace. You'll need a full electric system installation, but you might be able to reuse existing ductwork if it's up to current safety standards. You’ll need to budget for a new electric furnace installation, which costs between $1,800 and $6,200, including professional removal, proper disposal, and safe installation of the new system.
Electric furnaces are 100% efficient at converting electricity into heat. However, some of that heat can be lost as it travels through your home's ductwork or escapes through poorly insulated areas. That's why regular duct maintenance and proper home insulation are important to maximize your furnace's efficiency and reduce heat loss, ensuring consistent warmth and lower energy costs.
With proper maintenance, an electric furnace can last anywhere from 20 to 30 years, outlasting the average gas furnace's lifespan of 15 to 20 years. To keep your electric furnace running efficiently, schedule regular cleanings, tighten connections, and have inspections done before winter arrives. With routine maintenance, you’ll ensure consistent, safe heating for years to come.
The size of the electric furnace you need depends on factors like your home's square footage, climate, and insulation quality. As a general guideline, those who live in warmer climates should multiply their square footage by 30 to 35 BTUs, while those in cooler areas should multiply it by 50 to 60 BTUs.
Consulting with an HVAC professional can help you determine the exact size that's right for your home.
An electric furnace works by converting electricity into heat using high-resistance heating elements. A blower then pushes the warm air through your home's ductwork, distributing heat evenly throughout your space. Since there's no combustion involved, electric furnaces eliminate the risks associated with gas furnaces and provide consistent, reliable heating when properly installed.
An electric furnace uses between 40 and 80 kilowatts per day to heat your home. The exact amount it uses depends on factors like your home's size, insulation, and overall energy requirements. Larger homes or those with poor insulation use more energy than smaller, well-insulated spaces. A professional furnace assessment can help confirm the ideal unit size for your needs.
From average costs to expert advice, get all the answers you need to get your job done.

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