Rated 5.0 Stars on Google!

Expert HVAC Service You Can Count On

Honest, Reliable Comfort Solutions for Your Home & Business

Schedule Now Call (863) 225-8048

Serving Winter Haven & Surrounding Communities

AC Repair

Furnace Repair

Commercial HVAC

Heat Pumps

Ductless HVAC

Indoor Air Quality

WiFi & Smart Thermostats

Your Trusted Partner for Complete HVAC Solutions

At Rankin Mechanical Service, we bring years of hands-on expertise to every heating, cooling, and indoor air quality project we take on. As a small family-run business that prides itself on honesty and integrity, we believe that trust is the foundation of every customer relationship. Whether you need a brand-new system installed in your home or routine maintenance on existing equipment, our team is committed to delivering reliable results at a fair price. We proudly serve homeowners and businesses throughout Winter Haven, FL and surrounding areas, bringing professional-grade service to communities that deserve nothing less than the best.

One thing that sets us apart is our commitment to technical excellence. Every technician and installer on our team is NATE Certified and Bryant factory authorized, which means you are getting professionals who have passed rigorous industry examinations and have been specifically trained to work with some of the most advanced HVAC equipment on the market. NATE, or North American Technician Excellence, is the largest non-profit certification organization for HVAC technicians in the country, and holding that credential demonstrates a measurable level of competence that goes far beyond basic licensing requirements.

Happy Customers

Leave Review More Reviews

Excellent and fast service! Very thorough and explain and show the problem. Highly recommend for any of your air condition needs

Cheryl C.

Google Review

Lee and his team are always on point. I had an AC fan motor go out over the weekend. I emailed Lee on a Sunday, and he had his team out first thing Monday morning. An hour later they had the motor replaced and freezing me out of my home office. These guys are awesome!!!

Chris B.

Google Review

Do yourself a favor and use this company! Our AC went out on a Saturday and they were here quickly and fixed the problem at a fair price. With two little kids in 90 degree heat, I could not have been more appreciative of the professional service. Thank you!

Meghan Y.

Google Review

Wish I could give them 10/5 stars. RMS are hands down the most honest, helpful, and quick AC repair and install guys I have ever worked with. I was shopping around for rates for a repair after getting an insanely high quote and work done from a larger AC company, and was shocked to learn how much ...continue reading

Bryce S.

Google Review

I HIGHLY recommend RMS for their services. I called them this morning because I recently used them at my home for my A/C. Their honesty is what prompted me to give them a call for my office A/C. When I called, they were here in less than 15 minutes. We had been using another company for our home and ...continue reading

Arias W.

Google Review

We live in a 55 plus community. It was 108 degrees and my a/c was out for the second day. I called Rankin and they scheduled an appointment right away. Henry was the tech that serviced my call. He was prompt and efficient and took the time to be social. He throughly inspected the unit and fixed ...continue reading

Carla B.

Google Review

I cannot tell you how happy I am with RMS Cooling. They responded lightening fast and even give you a courtesy call before they arrive. My technician was Very Friendly, Professional and solved my issue quickly & efficiently. I am Very Impressed with the Great Job they did and now my unit is purring ...continue reading

Gerald D.

Google Review

Excellent Service and Professionalism! I had an amazing experience with Rankin Mechanical Services LLC. From start to finish, their team was professional, knowledgeable, and efficient. They quickly diagnosed the issue with my system and had it up and running in no time. The technician was friendly, ...continue reading

Tian H.

Google Review

Henry was amazing along with his coworkers. Had major issues and another AC company did not be truthful with us regarding our unit. RMS was honest, truthful and helpful!!! We will definitely be using them from here on out. A big shout out to Lee Rankin for all his help with this... finally a cool h ...continue reading

Jamie B.

Google Review

Heating System Installation and Repair

When temperatures drop across Winter Haven, Jan Phyl Village, Auburndale, Eagle Lake, Lake Alfred, Dundee, and Bartow, FL, having a dependable heating system is not a luxury but a necessity. We install and repair a full range of heating equipment, including gas furnaces, heat pumps, ductless mini-split systems, and hybrid heating solutions. Our approach begins with a thorough assessment of your home or building, factoring in square footage, insulation quality, window placement, and your household’s specific comfort preferences. This load calculation ensures that the system we recommend is properly sized, which directly impacts energy efficiency, equipment lifespan, and overall comfort.

We service all makes and models, so regardless of the brand currently installed in your home, our technicians can diagnose and resolve issues efficiently. From ignitor failures and blower motor replacements to heat exchanger inspections and thermostat calibrations, we handle every repair with precision and care. We also offer free estimates for new installations, making it easy to explore your options without any financial commitment upfront.

Schedule Now Call (863) 225-8048

Hvac Repair, Furnace replacement and AC repair

Air Conditioning and Cooling Services

A properly functioning air conditioning system does more than cool your home. It controls humidity, filters airborne particles, and creates an environment where your family can thrive during the hottest months of the year. We install high-efficiency central air conditioning systems, ductless cooling units, and air-source heat pumps designed to keep your home comfortable while minimizing energy consumption. Modern cooling equipment has advanced significantly, with many units now achieving SEER2 ratings well above 16, translating into meaningful savings on monthly utility bills.

Our cooling repair services cover everything from refrigerant leak detection and compressor diagnostics to evaporator coil cleaning and capacitor replacement. Residents in Winter Haven, Jan Phyl Village, Auburndale, Eagle Lake, Lake Alfred, Dundee, and Bartow, FL can count on us to get their systems running smoothly, and our NATE Certified techs bring the diagnostic skill needed to identify root causes rather than simply treating symptoms.

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Indoor Air Quality Solutions

The quality of air inside your home can be significantly worse than outdoor air if proper filtration and ventilation are not in place. We offer a variety of indoor air quality products and services designed to address common concerns such as allergens, volatile organic compounds, excessive humidity, and airborne pathogens. Solutions we provide include whole-home air purifiers, UV germicidal lights, humidifiers, dehumidifiers, and advanced media filtration systems.

Each recommendation we make is tailored to your specific situation. A family dealing with seasonal allergies may benefit from a HEPA-grade filtration upgrade, while a homeowner noticing persistent musty odors might need a dehumidification system to address excess moisture. Our team evaluates your current ductwork, ventilation design, and existing equipment before suggesting any additions, ensuring that every solution integrates seamlessly with your HVAC system. Residents across Winter Haven, Jan Phyl Village, Auburndale, Eagle Lake, Lake Alfred, Dundee, and Bartow, FL trust us to improve their indoor environments because we take the time to listen and provide solutions that truly make a difference in daily comfort and health.

Schedule Now Call (863) 225-8048

From The Blog

How a Well-Maintained HVAC System Impacts Your Daily Comfort and Mental Well-Being

How a Well-Maintained HVAC System Impacts Your Daily Comfort and Mental Well-Being Most people think of their HVAC system as a purely functional appliance, something that keeps temperatures manageable during Florida’s intense summers and occasional cool winter nights. But the truth goes much deeper than that. The environment inside your home directly shapes how you … Continued

May 1, 2026 Read More

How a Well-Maintained HVAC System Impacts Your Daily Comfort and Mental Well-Being

May 1, 2026 Read More

Why Attempting DIY HVAC Repairs Could Cost You More Than Calling Rankin Mechanical Services

Why Attempting DIY HVAC Repairs Could Cost You More Than Calling Rankin Mechanical Services We get it. When your air conditioner starts acting up in the middle of a sweltering Florida summer, your first instinct might be to search for a quick fix online. With countless video tutorials and forums available, it seems like handling … Continued

April 1, 2026 Read More

Why Attempting DIY HVAC Repairs Could Cost You More Than Calling Rankin Mechanical Services

April 1, 2026 Read More