(808) 422-5454
RMI Mechanical

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.

Mitsubishi Electric
Diamond Contractor
RMI Mechanical

Why Hawaii Homeowners Trust Us

Your Local Mitsubishi Cooling Experts

With over 30 years of experience, we make it easy to upgrade your home with reliable, energy-efficient cooling — backed by expert service and island-tested solutions.

  • Factory-Trained Technicians

    Our team knows Mitsubishi systems inside and out, ensuring every installation is done right the first time.

  • RMI Mechanical
  • RMI Mechanical
  • RMI Mechanical

  • Ready for Reliable Cooling?

    Get a free estimate and see how easy it is to upgrade your home with trusted, energy-efficient comfort.

    Get My Free Estimate

Professional Cooling Solutions for Every Home

Our Services

We provide expert Mitsubishi installations, repairs, and custom cooling options designed to keep your home comfortable and efficient. Whether you’re upgrading your system or need reliable service, our experienced team is here to help.

Explore All Services

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.

RMI Mechanical

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.

“I’m a return customer to RMI because of the excellent service I received on a previous install. Randy was easy to work with and explained everything clearly. The work was done right, at a fair price, and they were flexible to meet my specific needs. Highly recommended!”

Alric K.
Honolulu, HI

“I’ve been a customer of RMI for nearly 10 years for both my home and business. They installed Mitsubishi systems that have performed flawlessly and even remind me when service is due. Their work is professional, thorough, and I’ve always appreciated their attention to detail.”

Bill M.
Mililani, HI

“I’ve trusted RMI for over a decade for HVAC service, and they’ve always been reliable. When I had an urgent problem during the busy season, Randy came himself to fix it quickly and reasonably. Their regular maintenance is excellent, and I highly recommend them!”

Burke B.
Honolulu, HI

“5 stars way up! Randy and Crislyn were great to work with. Their estimates were fair, the work was done professionally, and they answered all of our questions. Highly recommend them for your air conditioning needs!”

James G.
Waipahu, HI

“We got several quotes for Mitsubishi AC, and RMI had great pricing and options. Randy provided expert advice and made sure we were completely satisfied after installation. I highly recommend them if you’re looking for reliable AC service.”

Ryan M.
Aiea, HI

“Randy and his team installed several systems for my family over the years. They always do great work that’s professional, quick, and looks beautiful. I love my Mitsubishi units and wouldn’t go with anyone else!”

Wendi U.
Honolulu, HI
RMI Mechanical

No-Pressure, Expert Advice

Get Your Free Cooling Estimate Today

Our team makes it easy to upgrade your home with reliable, energy-efficient cooling. Request your free estimate and discover the best system for your space — no obligations, just expert guidance.

Get My Free Estimate

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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