Ductless Mini Split AC Installation in the Greater Phoenix Area

More than 592+ 5-Star reviews

Not every home is built for ductwork, and some rooms are simply harder to keep comfortable than others. A ductless mini split system provides an efficient way to heat and cool individual spaces without major renovations or extending existing ductwork. Whether you’re looking for an alternative to traditional air conditioning, adding climate control to a new space, or improving comfort in a problem area, a mini split offers flexible, energy-efficient performance.

Semper Fi Heating & Cooling provides professional ductless mini split installation throughout the Greater Phoenix area. Whether you’re finishing a garage, adding a home office, remodeling an older home, or solving uneven temperatures, we’ll help you select a system that delivers dependable, room-by-room comfort. Our experienced technicians evaluate your space, recommend the right equipment, and install your new system for lasting performance.

A professionally installed comfort solution can improve energy efficiency, enhance indoor comfort, and help your heating and cooling system perform at its best for years to come. Semper Fi Heating & Cooling is here to help you choose the right solution for your home and complete every installation with expert care and attention to detail. Schedule your installation today or book your appointment online.

Ductless mini split installation.

Why Choose a Ductless Mini Split System?

Ductless mini split systems deliver heating and cooling directly to the spaces that need it most. Instead of conditioning your entire home through a single thermostat, they provide zoned temperature control, allowing each area to maintain its own comfort level.

Mini split systems are an excellent choice for:

  • Home additions

  • Garages and workshops

  • Sunrooms

  • Guest suites

  • Converted attics or basements

  • Home offices

  • Rooms with persistent hot or cold spots

In addition to personalized comfort, ductless systems operate quietly, eliminate energy losses associated with ductwork, and can significantly improve efficiency in Arizona’s demanding climate. Many modern systems also feature high-efficiency SEER2 ratings, helping reduce energy consumption while maintaining consistent indoor comfort.

Ductless Mini Split Installation, Replacement & Repair Services

Whether you’re installing a new system or maintaining an existing one, Semper Fi Heating & Cooling provides complete ductless mini split services designed to keep your home comfortable year-round.

Ductless Mini Split Installation

Every installation begins with a thorough evaluation of your home’s layout and comfort needs. We’ll recommend a properly sized system, determine the ideal placement for indoor and outdoor components, and complete the installation with attention to airflow, efficiency, and long-term reliability.

Most residential mini split installations can be completed in a single day, depending on the number of indoor units and the complexity of the project.

Ductless Mini Split Replacement

If your current mini split struggles to maintain comfortable temperatures, requires frequent repairs, or is more than 12 to 15 years old, replacing it may be the most cost-effective solution.

We’ll help you select a modern, energy-efficient system that matches your home’s needs and install it to manufacturer specifications for dependable performance.

Ductless Mini Split Repair

If your mini split isn’t cooling or heating properly, our technicians can quickly diagnose the issue and recommend the appropriate repair. We service common problems including refrigerant leaks, drainage issues, communication errors, sensor failures, and reduced airflow, restoring reliable operation as efficiently as possible.

Ductless Mini Split Maintenance

Routine maintenance helps your system operate efficiently while extending its lifespan.

Our maintenance service includes:

  • Cleaning indoor filters and coils

  • Inspecting electrical connections

  • Checking refrigerant levels

  • Testing airflow and system performance

  • Inspecting condensate drains

  • Verifying safe operation of all major components

Regular service helps your mini split continue operating efficiently through Arizona’s long cooling season.

Schedule service today!

Our veteran-run team delivers solutions when you need them most.

Why Homeowners Choose Semper Fi Heating & Cooling

Choosing the right contractor is just as important as choosing the right equipment. At Semper Fi Heating & Cooling, we focus on quality workmanship, honest recommendations, and customer-first service from start to finish.

  • Experienced Mini Split Specialists: Our technicians install, replace, repair, and maintain ductless mini split systems with precision and attention to detail. We stay current with today’s equipment and installation best practices to ensure every system performs as intended.

  • Personalized Comfort Solutions: No two homes are exactly alike. We evaluate your space, discuss your comfort goals, and recommend a system that’s properly sized and configured for your home’s layout.

  • Flexible Financing: We offer GoodLeap financing for qualified customers, making it easier to invest in a new ductless mini split system without delaying your comfort.

  • Proudly Serving Those Who Served: As part of our commitment to the military community, we proudly offer a 20% veteran and military discount while continuing to uphold our “Always Faithful” promise.

  • Supporting Military Careers: Semper Fi Heating & Cooling is a proud Department of Defense SkillBridge Program partner, helping transitioning service members build rewarding careers in the HVAC industry through hands-on training and mentorship.

  • Community Focused: Giving back is part of who we are. Through partnerships with local organizations and community involvement throughout the Greater Phoenix area, we’re proud to support the neighborhoods and families we serve.

Find the Right Ductless Mini Split Solution for Your Home

Whether you’re adding comfort to a new space, replacing an aging system, or scheduling service for your existing mini split, Semper Fi Heating & Cooling is here to help. Contact our team today to discuss your options or book your appointment online.

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Review Highlights
Customers consistently praise Semper Fi for their exceptional speed and responsiveness, often arriving same-day or next-day to resolve urgent heating, cooling, and plumbing issues, combined with honest, knowledgeable technicians who thoroughly explain the work and take time to ensure complete satisfaction. The team is recognized for their professionalism, cleanliness, fair pricing without upselling, and genuine care—from scheduling through installation—with many customers highlighting specific technicians by name for their expertise, friendliness, and ability to make even stressful emergencies feel manageable. Whether installing new systems, performing routine maintenance, or handling emergency repairs, the consistent feedback reflects a trustworthy company that goes above and beyond expectations while delivering quality workmanship.

Based on 592+ Reviews

JY. M. C-S
10 hours ago
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The maintenance Semper Fi provides is awesome! It is hard to get on their AC make maintenance schedule in summer tho. Got 4-5 months wait :~
JoAlice Garbrick
20 hours ago
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We have used Semper Fi for multiple things and each time, the service has been excellent.
Ashley Lytle
21 hours ago
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Alex you are so awesome!

The tech that came out yesterday evening was absolutely amazing! He was knowledgeable, respectful, professional, and funny! Instead of saying hey this is what's wrong with your unit and you need this, this, and this, he explained how the AC was working and what went wrong. The previous company (1 hour air 🤮) that we got our gigantic $16,000 air conditioner through about 4 years ago, sold us the wrong unit! They sold us a roof unit for a house that has all the ducts under the damn house! So after spending money with Semper Fi and having them come clean and seal the ducts as well as replace that blower motor in the 1 hour air unit....Alex came out because we couldn't get the unit to shut off. Well long story short the motherboard got fried in the spot that turns the blower off and it was stuck on! Soooo back to Alex, he explained everything and as the second Semper Fi tech to come out to our house - he lasted through all my ridiculous questions and sarcasm! Alex is truly a wonderful guy, he loves what he does and you can really tell that he cares. We had a hiccup in the process of payment and he quickly solved that (also shout out to the guy that also helped me through that process over the phone). Alex stayed through the slightly stressful conversation I had with my mom trying to decide how we could afford a new air conditioner because let's be real spending $16,000 and still owing on the unit after only four years of owning it and then spending even more money to get a new unit is kind of ridiculous! I am very glad that we had Alex come out to diagnose the issue that we were having. He knew exactly what was wrong (very quickly I might add) and he gave us different ways on how it could be fixed. Of course the easy way would be putting a Band-Aid over it but that wasn't what I wanted to do! When I say this company truly is amazing I am not over exaggerating, I feel like even though it is very costly to buy a new air conditioner especially nowadays, Semper Fi made it a little bit easier and I am in love with the fact that all of our questions and then some were answered and explained. I really can't say more about this company besides they hire very good people and they do a really good job!
Please buy Alex a good lunch 😂 or give him something special! 😋 I know he works hard, along with all the guys I have interacted with from this company!
Thank you so much!
Melissa McGhee
21 hours ago
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Tyrik was so friendly and helpful.
James Tyler
21 hours ago
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Please stop call8ng me
Fantasia Holmes
22 hours ago
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Very personable, makes sure everything is done the proper way and checks off everything that needs to be done. He’s solving a 3 year long issue for us where many many other service techs could not. Would highly highly recommend Colin.
Logan Lemler
22 hours ago
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Colin did an outstanding job coordinating around our schedule to install a new AC. Very personable and respectful person. Very knowledgeable, knows what he is doing & we can tell semper fi is a reliable company. Thanks so much for coming out today!
Melanie Cisler
23 hours ago
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The service was great & very informative! I found the company to be genuine and very giving! I would definitely recommend them! Melanie &Tim Cutbirth, Phoenix, AZ
Laurie Suhler
23 hours ago
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Waylon was the greatest. Very professional and made sure to keep my floors clean!!!
Elizabeth Buentello
23 hours ago
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Aaron, Zion, Joe, Noah and Kenny were great! Aaron and Zion were the first to show up and THEY WERE EARLY! UNHEARD OF! When we've had other services we've been lucky IF they showed up CLOSE to when they said they would. Very pleased with the promptness an thouroughness of the company, very professional!
Deborah Tingen
24 hours ago
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Great professional service and knowledge. Brandon was very cordial with a genuine caring attitude, which made me feel like I mattered, as a valued customer. He took the time to explain how things worked and put me at ease.
Ed Gurule
24 hours ago
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Tech did a great job explaining my options and my steps moving forward. Great experience.
Tammy Hull
1 day ago
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David was very professional and knowledgeable.
victor french
1 day ago
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Anthony was very professional and
did an outstanding job with his thoroughness and step by step explanations on what he was doing that even I could understand.
Sylvia Hatsutani
1 day ago
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We had our AC quoted and they were able to install next day. I followed up with it not quite cooling, and they came right away to adjust the fan speed to get more air flowing. Semper Fi is very quick in response, which is important to me.
Paul Savare
1 day ago
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Dillon came out and took care of our plumbing services. Did an awesome job! Thank again!
Deb Baier
1 day ago
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They were very prompt and arrived ahead of schedule. Rob was very polite and professional and gave us our options without a lot of pressure.
Tee Tee
1 day ago
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Thank you Marty and Robbie for your service
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Semper Fi Heating & Cooling provides 24/7 heating, cooling, plumbing, and home comfort services backed by quality workmanship and a veteran-run commitment to exceptional service. Call or schedule your service today!
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