Mitsubishi Mini Split Installation and Service in Los Angeles
Dr. Ductless is a Mitsubishi Electric Elite Diamond Contractor that installs, repairs and cleans Mitsubishi mini splits across Los Angeles and the South Bay.
We have worked on ductless systems in Southern California since 2001, from two locations in Lawndale and Los Feliz. Quotes for a new system are free. A diagnostic visit for an existing system is $189, credited toward the repair you approve.
Call (213) 916-0005 or request a free quote.
Key points
- Elite Diamond Contractor. Elite is the highest of the three levels in Mitsubishi Electric’s contractor program.
- 12-year warranty on qualifying installs. Mitsubishi Electric covers parts and the compressor for 12 years when a Diamond Contractor installs the system in a single-family home and it is registered within 90 days.
- Free quote for a new system, at your home or as an online estimate.
- $189 diagnostic visit for an existing system, credited toward the repair you approve.
- Cleaning is $199 for the first indoor unit and $59.99 for each additional one.
What Los Angeles homeowners ask us about Mitsubishi systems
These are requests that came into our office in September and October 2026.
- A homeowner planning two or three ceiling cassettes and one wall unit on a single Mitsubishi outdoor unit
- A buyer of a newly purchased home asking for a ducted Mitsubishi system that hides the indoor units
- An owner whose Mitsubishi system rattles, asking about maintenance and about adding zones to cover the whole house
- A landlord who needed a Mitsubishi controller reprogrammed for a tenant
- A condo owner whose HOA rejected an outdoor unit on the roof, asking about a balcony location and a smaller unit
- The owner of a 1931 apartment building who wanted eight systems installed with as little damage to the walls as possible
Why the installer matters with a Mitsubishi mini split
The installer decides how well a mini split performs and how long its warranty runs. Mitsubishi Electric trains its Diamond Contractors directly and extends the factory warranty on systems they install.
| Question | What Mitsubishi Electric says |
|---|---|
| Who are Diamond Contractors? | Independent contractors who have received advanced training directly from Mitsubishi Electric Trane HVAC US. |
| What are the levels? | Diamond Contractor, Diamond Contractor Preferred and Diamond Contractor Elite. Dr. Ductless is at the Elite level. |
| What is the warranty? | Parts and compressor are covered for 12 years each when a Diamond Contractor installs the system in a single-family home and it is registered within 90 days of installation. |
More detail is in why buy from an Elite Diamond Contractor.
Which Mitsubishi indoor unit fits which room
Mitsubishi Electric makes five styles of indoor unit, and one outdoor unit can run a mix of them. The right one depends on the wall space, the ceiling and how visible you want the equipment to be.
| Indoor unit | Where it goes | Good fit for |
|---|---|---|
| Wall-mounted (MSZ) | High on a wall | Most bedrooms, living rooms, offices, garages and ADUs |
| Floor-mounted (MFZ) | Low on a wall, near the floor | Rooms with low or sloped ceilings, and replacing an old wall heater |
| One-way ceiling cassette (MLZ) | Recessed in the ceiling between joists | Rooms where you do not want a unit on the wall |
| Four-way ceiling cassette (SLZ) | Recessed in the ceiling | Larger open rooms |
| Ducted (SEZ, PEAD, SVZ) | Hidden in an attic, closet or soffit | Several rooms from one hidden unit, or replacing a furnace and its air handler |
If you already have ducts in good condition, the Mitsubishi SVZ air handler can use them. If your panel is small, 115-volt mini splits are available for single rooms.
How a Mitsubishi installation works
A single-zone installation follows the same six steps as a whole-house one. The difference is the number of indoor units and the planning for the outdoor unit and line covers.
- Free consultation. We look at the rooms, the electrical panel and where the outdoor unit can go.
- Sizing. Each room is sized by a load calculation, not by square footage alone.
- Placement plan. You approve the indoor unit locations and the route of the line covers before work starts. In a condo this is the drawing your HOA board reviews.
- Permit. In the City of Los Angeles, a mechanical permit is required to install or change a heating or cooling system.
- Installation and testing. Each indoor unit connects to the outdoor unit through a single hole of about 3 inches.
- Warranty registration. The system has to be registered within 90 days of installation for the 12-year warranty to apply.
See mini split installation in Los Angeles for the full process and mini splits for apartment buildings for rentals.
What a Mitsubishi mini split costs in Los Angeles
The price depends on the number of rooms, the style of indoor unit and the electrical work, so we quote each home after seeing it. The consultation is free.
- Price ranges by number of zones are in our mini split installation cost guide.
- For a quick number before a visit, use the Mitsubishi instant quote.
- Monthly payment options are on the financing page.
Repair, cleaning and error codes
We service Mitsubishi systems we installed and systems installed by others. Our technicians are factory trained on Mitsubishi Electric.
| Service | Price | More information |
|---|---|---|
| Diagnostic visit | $189, credited toward the repair you approve | Mini split repair |
| Cleaning, first indoor unit | $199 | Mini split cleaning |
| Cleaning, each additional indoor unit | $59.99 | Do mini splits need to be cleaned? |
| Blinking light or error code | Look it up before you call | Mitsubishi error codes |
If your system seems to run all day, read do Mitsubishi split units run constantly? before booking a visit. Long, quiet run times are normal for an inverter system.
Where we install Mitsubishi systems
Dr. Ductless has worked on ductless systems in Southern California since 2001, from two locations.
Lawndale / South Bay
15701 Condon Ave, Ste. B-5
Lawndale, CA 90260
Los Feliz / Central Los Angeles
3111 Los Feliz Blvd #211
Los Angeles, CA 90039
Phone: (213) 916-0005 · Monday to Friday, 7:00 am to 5:00 pm. You can also see equipment in person at our showroom.
Frequently asked questions
What is a Mitsubishi Electric Elite Diamond Contractor?
It is the highest level in Mitsubishi Electric’s contractor program. Diamond Contractors are independent companies trained directly by Mitsubishi Electric Trane HVAC US, and the program has three levels: Diamond Contractor, Preferred and Elite.
How long is the warranty on a Mitsubishi mini split?
Mitsubishi Electric covers parts and the compressor for 12 years each when a Diamond Contractor installs the system in a single-family home and it is registered within 90 days of installation.
How much does a Mitsubishi mini split cost installed in Los Angeles?
It depends on the number of rooms, the style of indoor unit and the electrical work. Dr. Ductless gives a free quote after seeing the home, and an online instant quote is available for a quick estimate.
Can one Mitsubishi outdoor unit run several rooms?
Yes. A multi-zone outdoor unit connects to several indoor units, and each room keeps its own temperature setting. The number of indoor units depends on the outdoor unit model and the size of the rooms.
Do I need Mitsubishi Hyper-Heat in Los Angeles?
Usually not. Hyper-Heat models are built to keep heating in freezing weather. Coastal and basin Los Angeles rarely gets that cold, so a standard Mitsubishi heat pump covers winter in most homes here. Ask about it if you live in the foothills or mountains.
Do you repair Mitsubishi systems installed by another company?
Yes. A diagnostic visit is $189, and the fee is credited toward the repair you approve.
Get a free Mitsubishi mini split quote
Tell us how many rooms you want to heat and cool and we will set up a consultation.
Call (213) 916-0005 Request a free quoteSources: Mitsubishi Electric Trane HVAC US, Find a Diamond Contractor and Diamond Contractors: your partner for a hassle-free installation · Los Angeles Department of Building and Safety, Mechanical HVAC permits
How Do Ductless Systems Work?
Both ductless and central units work much the same way, sucking the warmth in the air, removing the moisture, then dumping the heat and moisture outside the house. But ductless units blow cool air directly into the room or area they cool, while central AC systems channel cool air into a network of ducts that spread it throughout the entire home, or several rooms.
Ductless air conditioning systems do exactly as their name suggests: they cool indoor spaces without the need of any piping or ducts. They don’t need ducts because they cool only one room, unlike the central units which can cool an entire home.
Ductless AC units contain three major components:
Single-Zone And Multi-Zone Ductless
Choose between a single-zone and a multi-zone Mitsubishi system based on how many rooms you want to heat and cool.
They control temperatures in a single room or area of your home by linking a single indoor unit to one outdoor unit.
Suitable if you wish to control the temperatures of several rooms or spaces. They connect a single outdoor unit to several indoor units. See Your Equipment Price