San Diego Heating & A/C Company

We are Mini Split Express, a Heating & A/C company that specializes in everything mini split. Our services entail installation, deep cleaning, and repair of these systems. We service San Diego and its greater areas. Contact us to discover how mini split can help your home achieve the perfect climate control!

Hear from Our Happy Customers – Real Reviews & Video Testimonials

Discover why homeowners and businesses across San Diego trust us as their go-to mini split specialists. Our testimonial page features authentic customer experiences, including video reviews and written feedback highlighting our expert mini split HVAC services. From energy-efficient installations to reliable maintenance, see how we’ve helped clients stay comfortable year-round. Watch, read, and feel confident knowing you’re choosing a team that delivers quality, professionalism, and peace of mind.

We Appreciate Our Clients!

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Wendy Parcel profile picture
Wendy Parcel
7 days ago
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The company was quick to reply by text, what I'd asked for, and then were patient with me while I asked many questions. They came out and cleaned four mini-splits for us. They took off their shoes to protect our hardwood floors and were kind to my husband who has dementia. So happy I went with Mini Split Express.
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Barbara Parsons
20 days ago
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Mini Split Express has been fabulous from start to finish. Devin was very efficient and thorough. The communication was top notch. The technicians completed the installation in two hours. They were polite, friendly and were very careful keeping my house spotless. I would highly recommend them.
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Samuel Cunard
23 days ago
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Devin did a great job for us! He was quick to respond when our Mini Split started leaking. He gave us expert guidance and eventually re-architected the system to meet industry best practices. The price we paid was also less than quoted we received from Other companies. Would recommend them 100% of the time.
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Heidi Bridges profile picture
Heidi Bridges
23 days ago
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We had a great experience with Mini Split Express. The technicians were so nice and knowledgeable. They completed our work in a timely manner as well as took great care of our home.
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Paulo DaSilva
24 days ago
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Casey and Joey came out to deep clean our mini split in our ADU. They were courteous and professional and did a fantastic job. AC purrs like a kitten and no more mildew-ey smell. I will hire them again in the future and recommend them to anyone looking to get their mini split ac cleaned or serviced.
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Honey Leshaw
31 days ago
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It’s always akin to striking gold when you hire a company who sends expert, qualified repair people. Thank you mini split specialists … Casey it was a pleasure working with you. Diagnosis and repair quick and easy. I am “cool” again!
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Jordan English
42 days ago
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Professional and efficient.
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MarSee profile picture
MarSee
50 days ago
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Many thanks to Casey and Mini-Split AC for the great service. The work was done to perfection. Highly recommend them.
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Karen Zhong
56 days ago
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We just had Mini Split repaired our A/C, and we can't be happier with the experience. The person I initially spoke over the phone was courteous, professional, and actually knowledgeable of the business, unlike the phone reps I had spoken in other businesses, who are just appointment setters. He gave me the appointment time, and texted me a detailed confirmation. Several days before our appointment an earlier slot opened up and I was asked if we would like to switch, of course we did! The technician came to the house on time, did the repair and explained the situation. We got the invoice via email, and they accept credit card (2% processing fee), check and online banking payment (via 4 Square). All in all a very straight forward and pleasant experience!
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Yves Pacheco profile picture
Yves Pacheco
56 days ago
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Devin and Chase arrived on time, explained how they were going to replace our old mini-split air conditioner unit. They wert e very efficient and friendly, and answered all our questions. They cleaned up after their work.
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Trouble Finding HVAC Companies that specialize in Mini Split Heat Pumps?

 

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What the Heck are Mini Splits?

Mini split heat pumps are advanced HVAC systems that provide both heating and cooling. Unlike traditional central systems, they offer superior energy efficiency and personalized comfort through zone control, allowing you to adjust temperatures in individual rooms THROUGH YOUR PHONE. This targeted approach not only reduces energy consumption but also enhances overall comfort, making mini splits a better choice for modern homes. View our FAQ to answer some more questions

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What we do

Mini Split Experts

If you are looking for experts in mini split installation, maintenance, and repair services in San Diego. Join others in experiencing the efficiency of a superior heating and A/C unit.

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Internships & Mentorships at Mini Split Express

Discover Your Future in HVAC

Ready to roll up your sleeves and explore a hands-on career in the trades? At Mini Split Express, we’re opening doors for high school and college students to dive into the world of HVAC through immersive mentorship and internship experiences. Whether you’re curious about the field or business side, we’ll help you take that first step with confidence.

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Don’t Forget the Deep Cleaning

Regular cleaning of your mini split system is crucial for several reasons. First, it ensures optimal performance by preventing dust and debris buildup, which can obstruct airflow and reduce efficiency. Clean systems operate more efficiently, leading to lower energy bills. Additionally, regular cleaning improves indoor air quality by removing allergens and pollutants, creating a healthier environment for you and your family. It also extends the lifespan of your system by preventing wear and tear on components. Overall, keeping your system clean ensures reliable, efficient, and long-lasting performance.

How to Clean and Maintain Mini Split

Watch this informative how-to from This Old House and take control of your mini split maintenance. Learn simple, effective techniques that boost performance and extend the life of your system—no pro required.

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    Frequently Asked Questions

A mini split is a type of heating and cooling system that allows for individual temperature control in different rooms or zones. It consists of two main components: an outdoor compressor/condenser and one or more indoor air-handling units. These units are connected by refrigerant lines and electrical wiring. It is ductless, so no ducts or furnaces like central AC, which leads to less maintenance and faster installs.

With Mini Split Express a single room/zone system install will take 1 day depending on the system layout and installation challenges. A multizone install  could take up to 3 days depending on how many indoor and outdoor units there are. 

NO, Mini splits have been around for quite some time, with their origins dating back to the 1950s and 1960s. The first ductless mini split system was developed in Japan by Mitsubishi in 1959.These systems were introduced to the United States in the 1960s, with Heat Controller building the first ductless mini split HVAC system in 1965.Over the years, mini splits have evolved significantly, becoming more efficient and versatile.

Your mini split should be deep cleaned 1 year minimum ! Deep cleaning includes taking off the plastic coverings and power washing and spraying both units components with an allergen and mold killer. We also inspect all the components including electrical to make sure the system is working as efficient as possible.

It’s recommended to clean your mini split filters every one to two months. However, the exact frequency can depend on factors like air quality, system usage, and whether you have pets or live in a dusty environment. If you notice reduced airflow or your system isn’t cooling as efficiently, it might be time to clean the filters. Regular filter cleaning helps maintain optimal performance and indoor air quality. Here is a short YouTube video on how to clean them HERE.

There are several types of mini split systems, each designed to suit different needs and preferences. Here are the main types:

  1. Wall-Mounted Mini Splits: These are the most common type. They are installed high on a wall and are ideal for various rooms. They are simple, affordable, and reliable

  2. Ceiling Cassette Mini Splits: These units are mounted on the ceiling, providing a wider airflow and keeping the indoor unit out of sight

  3. Ducted Mini Splits: These systems are concealed above the ceiling and distribute air through ducts, making them a good option for those who prefer hidden units

  4. Slim Ducted Mini Splits: Slim ducted mini split systems are a type of ducted mini split that use narrower ductwork compared to traditional ducted HVAC systems
  5. Floor-Mounted Mini Splits: These units are installed at floor level and are suitable for rooms with limited wall space