4.8 (7.2k)
Ductless Cooling & Heating

Ductless Mini Split Installation in San Diego

Efficient, zone-controlled comfort without ductwork. Ideal for room additions, garages, and homes without existing ducts.

Energy Efficient
Zone Control
Since 1952

Flexible Comfort for Every Room

Ductless mini split systems are one of the most versatile and energy-efficient ways to heat and cool your San Diego home. Unlike traditional central systems that rely on ductwork, mini splits deliver conditioned air directly to individual rooms or zones, giving you precise temperature control where you need it most.

Whether you’re adding comfort to a room addition, converted garage, home office, or older home without ductwork, ASI’s certified technicians will design and install a ductless system tailored to your space. Mini splits are quiet, efficient, and can provide both cooling and heating from a single unit.

AC Tech and Plumber Saying Hello
Perfect For

When a Ductless Mini Split Makes Sense

Mini splits solve specific comfort challenges that traditional systems can't address.

Room Additions & Conversions

Adding a bedroom, converting a garage, or finishing an attic? A mini split provides dedicated heating and cooling without extending your existing ductwork.

Homes Without Ductwork

Many older San Diego homes were built without ducts. A mini split system adds modern comfort without the cost and disruption of installing ductwork throughout the home.

Hot or Cold Rooms

If certain rooms in your home are always too hot or too cold, a mini split provides supplemental, zone-controlled comfort exactly where you need it.

Home Offices & Studios

Keep your workspace comfortable year-round without over-cooling or over-heating the rest of the house. Mini splits give you independent temperature control.

The ASI Difference

Benefits of Ductless Mini Split Systems

Mini splits offer unique advantages that make them an excellent choice for many San Diego homes.

Energy Efficiency

Mini splits are among the most efficient HVAC systems available. With no duct losses and inverter-driven compressors, they use significantly less energy than traditional systems.

Zone Control

Each indoor unit operates independently, so you only condition the rooms you're using. This personalized comfort also reduces energy waste.

Whisper-Quiet Operation

Indoor units are remarkably quiet—often as low as 19 decibels. You'll enjoy comfortable temperatures without the noise of a traditional system.

Flexible Installation

With only a small hole needed for the refrigerant line, mini splits can be installed almost anywhere with minimal disruption to your home.

a picture of the ASI Hastings work truck
Our Process

Our Mini Split Installation Process

From assessment to installation, we handle everything.

1. In-Home Assessment

We evaluate your space, discuss your comfort goals, and recommend the right mini split configuration—single-zone or multi-zone—for your needs.

2. System Design

We select the right capacity, placement, and number of indoor units to ensure optimal comfort and efficiency for each zone.

3. Professional Installation

The White Glove Guys mount indoor and outdoor units, run refrigerant lines, and make electrical connections with precision and minimal disruption.

4. Testing & Training

We test every zone for proper operation, set up your remote controls, and walk you through the system features so you get the most out of your investment.

Ready to Get Started?

Schedule your service today and experience the White Glove difference.

Customer Reviews

What Our Customers Say

4.8 (7.2k)

Don't just take our word for it — hear from our satisfied customers

Z zyz zyx
zyz zyx in the last week
★★★★★
Evan was super friendly and got right to work trying to fix our water heater. Great personality and wonderful communicator of the issues and options. Super satisfied with the service.
S Scott Humphrey
Scott Humphrey in the last week
★★★★★
I recently had my HVAC serviced by ASI and I can’t tell you how happy and relieved I am. Weeks earlier (back in March) I had my system HVAC serviced by Mauzy. After Mauzy left I found the cover not completely seated/installed back on the outdoor condenser unit and a screw laying on the concrete. Additionally, James L., provided me with a list (estimate via email) for the following: 1. Perform condenser coil wash $777.68 2. Remove and replace 40-amp contactor $686.86 3. Install a surge protector (SPD) $994.28 4. Replace HVAC ignitor $362.16 5. Replace flame sensor $362.16 6. Add (to the HVAC system) an extra UV (bulb) system $1,348.74 a. Grand Total = 4,531.88 Back in October 2021 Mauzy billed me $614.06 for 3 to 6 Lbs., of R410A. Back in November 2023 Mauzy billed me $2,345.89 for a new thermostat. Also, during our interaction, he was really pushing for the SPD and indicated the other components will soon fail. He made a statement that some of these SPD’s have an “expiration date” some only good for three years. I told him I have a Surge Protection Device at the main service PNL however he stated this was not good enough. As a certified CA., State WA., State Journeyman electrician I know this was not true and he was comparing an SPD to a carton of milk, very concerning. I then knew I was dealing with a technician with no electrical/HVAC knowledge – he only wanted to sell something. Shortly after he left, I started receiving TEXTS from Kaiya B., (from Mauzy) who was attempting to schedule the recommended service by James L. This is when I notified Kaiya B., that I found a cover loose and a screw on the ground and how disappointed I believed the service was. She got right back and stated she will forward my message to the General Manager however as of this writing I have not heard from anyone at Mauzy. I then contacted ASI and scheduled a full heating and AC service and inspection to ensure nothing else was left incomplete. That’s when the ASI technician discovered two refrigerant caps were missing. These are the caps they remove to measure the R410A refrigerant during operation (discovered by ASI) and are only accessible after removing the condenser cover. These caps were present last year during the service as I observed the service. Additionally, this is a 2025 California Plumbing Code requirement. In closing I I’m really disappointed. As an Army Veteran, 40+ years as an electrician, former building inspector and presently a plans examiner for several jurisdictions in California I feel this is a case of taking advantage of elderly people and over pricing services. The ASI technician could not believe the Mauzy price for coil wash, which was completed by ASI as part of the service call today for $87.00. The additional (other) items on the repair list from Mauzy, ASI stated were not needed looked brand new. I would like to thank the technician Jack Ryan (and ASI) for their honesty/knowledge of the system/thoroughness of the inspection/maintenance and transparency pricing. Additionally, I received a coil wash as part of the system check for a savings of $777.68 dollars. Thanks, Jack, for all your great work, honest pricing and not attempting to take advantage of an Army Veteran 😊. Scott Humphrey San Diego (Crest)
B Barbara Gill
Barbara Gill in the last week
★★★★★
Another great inspection (free) that is included in my membership with ASI. The technician, Travis Tibiatowski was extremely efficient. He answered all my questions and explained things. He inspected every nook and cranny, where water could escape, and found a couple of areas that needed attention. Travis was an extremely nice young man. I would thoroughly recommend Travis and ASI. I wish we had had this service many years ago. Definitely worthwhile.
FAQ

Ductless Mini Split Questions Answered

Yes! Most modern mini split systems are heat pumps that provide both cooling and heating from a single unit. They’re an excellent year-round comfort solution for San Diego’s climate.

A single outdoor unit can support multiple indoor units (typically 2-5 zones), each with independent temperature control. We’ll design the right multi-zone configuration for your home.

No—mini splits are actually among the most energy-efficient HVAC systems available. Their inverter-driven compressors and absence of duct losses mean lower operating costs compared to traditional systems.

A single-zone mini split installation typically takes half a day. Multi-zone installations may take a full day depending on the number of indoor units and complexity of the layout.

Get Started

Ready for Ductless Comfort? Let's Talk.

Whether you need cooling for a single room or a whole-home solution, our White Glove experts will design the perfect mini split system for your space.

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