(808) 422-5454

Hawaii’s Ductless Cooling Experts

Stay Cool & Comfortable with RMI Mechanical

Serving Oahu for over 30 years with expert Mitsubishi ductless A/C installations and reliable service you can trust. Energy-efficient solutions for homes and businesses across the islands.

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  • RMI Mechanical
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RMI Mechanical

Why Hawaii Homeowners Choose Us

Trusted Mitsubishi A/C Installations & Reliable Service

In general, residential air conditioning systems typically need service once or twice per year. We can help you care for your ductless cooling system for maximum benefits.

  • Factory-Trained Technicians

    Mitsubishi-certified pros at every install.

  • Energy-Efficient Systems

    Keep cool while saving on electricity.

  • Financing Available

    Flexible payment options to fit your budget.

  • Island-Wide Service

    Proudly serving homes across Oahu.

Our Services

Reliable Cooling Solutions for Hawaii Homes

From expert installations to ongoing maintenance, we help Oahu families stay cool and comfortable year-round.

  • RMI Mechanical

    Ductless A/C Installations

    Expert Mitsubishi system installations for your home.

  • RMI Mechanical

    System Maintenance & Repairs

    Keep your system running efficiently with local support.

  • RMI Mechanical

    Custom Cooling Solutions

    Tailored cooling options for unique spaces and needs.

Real Feedback from Our Customers

What Hawaii Homeowners Are Saying

We take pride in delivering expert service and reliable cooling solutions — but don’t just take our word for it. Here’s what our customers have to say.

“If you need air conditioning, this is the company to call. They’re knowledgeable, fast, courteous, and reliable. I had four split A/C units installed — three bedrooms and a living room — and it was done quickly and professionally. Any problems I had since were resolved promptly, with the owner, Randy, coming by personally to make sure I was completely satisfied. Highly recommend!”

James L.
Ewa Beach

“We got quotes from several Mitsubishi split A/C vendors, and we chose RMI. Their pricing was very competitive, and Randy gave us plenty of options for installation. We’re extremely happy with the install and customer service. Randy even followed up the next day to make sure everything was perfect. I would highly recommend RMI to anyone looking for a Mitsubishi A/C vendor.”

Ryan M.
Aiea

“Randy and the team at RMI did a fantastic job installing our A/C. They were prompt, courteous, and respectful of our home. Randy answered all our questions and provided great advice from start to finish. We’ve worked with many contractors, but RMI has earned our highest respect. As the five stars suggest, they are highly recommended. Quality service and an excellent product — that’s what you’ll get with RMI.”

Derrick I.
Honolulu

Stay Cool & Comfortable — Get Your Free Estimate

Our team makes it easy to upgrade your home with reliable, energy-efficient cooling. Fill out the form below and we’ll contact you to schedule your free estimate — no pressure, just expert advice.

RMI Mechanical

Get Your Free Estimate Today!

Please fill out the form below to request your free estimate. We will get back to you ASAP!

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