Multiple indoor units running from a single outdoor unit, each controlled independently. More upfront cost, but a practical solution when you’re heating and cooling several spaces without ductwork. We’ll help you figure out which setup makes the most sense for the space and how it’s used.
MINI-SPLIT INSTALLATION & REPAIR IN Los Angeles
When Traditional HVAC Doesn’t Make Sense
- NOT EVERY HOME NEEDS DUCTWORK
What Is a Mini-Split System?
Mini-split systems are a ductless solution for heating and cooling rooms or parts of the house where traditional ductwork isn’t practical or doesn’t exist. They’re especially useful for additions, converted garages, older homes without ductwork, or rooms that are difficult to heat and cool with the existing system. When properly sized and installed, they’re quiet, efficient, and reliable.
- THE RIGHT SYSTEM FOR THE SPACE
When a Mini-Split Makes Sense
Sometimes the issue isn’t the equipment — it’s that the house was never designed for how it’s being used today.
01
Additions & ADUs
A mini-split is often the cleanest solution for new additions and ADUs where extending existing ductwork isn’t practical or cost-effective.
02
Older Homes
Many older Los Angeles homes were built without central air or existing ductwork. A mini-split adds efficient heating and cooling without the cost and disruption of installing a full duct system.
03
Garages, Offices & Converted Spaces
Home offices, converted garages, and other repurposed spaces often sit outside what the central system was designed to serve. A mini-split handles those spaces independently.
04
Rooms That Never Stay Comfortable
If one room consistently runs too hot or too cold regardless of what the central system does, a mini-split can solve that problem without redesigning the HVAC system for the rest of the house.
- GOOD EQUIPMENT ISN'T ENOUGH
The Difference Is in the Install
Many mini-split problems we see aren’t equipment failures — they’re installation problems. Units that were oversized from the start. Drainage issues that slowly turn into water damage. Indoor units placed where the room never cools evenly. A mini-split installed correctly should disappear into the background and just work.
Proper sizing, clean installation, and proper placement matter. We install mini-splits based on how the room is actually used, not just where it’s easiest to hang the equipment.
The goal is a system that runs quietly in the background and does what it’s supposed to. If it doesn’t, there’s usually a reason.
- ONE ROOM OR MANY?
SINGLE-ZONE VS. MULTI-ZONE SYSTEMS
Mini-splits can be set up for one space or several. The right setup depends on how many areas you need to heat and cool and how independently you want to control them.
01
Single-Zone
One outdoor unit paired with one indoor unit — usually the right setup for a specific room, garage, addition, or converted space that needs its own independent heating and cooling.
02
Multi-Zone
- WHEN THE SYSTEM STOPS PERFORMING
MINI-SPLIT REPAIR
Mini-splits are reliable systems when they’re installed correctly. When something goes wrong, it usually traces back to the original install, an airflow issue, or an electrical fault.
WHAT WE REPAIR
- Units that won't cool or heat properly
- Error codes and communication failures between indoor and outdoor units
- Refrigerant leaks
- Drain line clogs and water leaks
- Systems that short cycle or shut down unexpectedly
WHAT'S BEHIND THE PROBLEM
- Problems with the original installation
- Airflow restrictions affecting performance
- Electrical faults in the indoor or outdoor unit
- Components that wear out over time
WE FIND THE CAUSE FIRST
- An error code tells us where to start, not necessarily what needs to be replaced. We trace the problem back to its source before recommending a repair.
Why Los Angeles Homeowners Call Hoffman for Mini-Splits
Mini-splits work best when they’re properly sized for the space and installed correctly.
We take the time to size the system, choose the right location for the indoor and outdoor units, and install everything cleanly from the start. We’ll recommend the solution that makes the most sense for the space — not the one that’s easiest to install.
Mini-Split FAQ
Are mini-splits a good option for older Los Angeles homes?
In many cases, yes. Older Los Angeles homes without existing ductwork, additions that were never tied into the central system, or spaces where adding ductwork isn’t practical are often good candidates for mini-splits. If the home can be served well with properly designed ductwork, that may be the better option.
Are mini-splits a good option for additions, ADUs, or rooms that never cool properly?
Yes. Mini-splits are one of the most practical solutions for additions, ADUs, and rooms that never cool properly. Extending ductwork into those spaces is often expensive and invasive. A mini-split installs with minimal construction, runs independently from the main system, and gives that space its own temperature control. It’s often a simpler way to solve a comfort problem without redesigning the HVAC system for the rest of the house.
Can I cool an entire house using only mini-split systems?
Yes. A properly designed multi-zone mini-split system can heat and cool an entire home without central ductwork. Each room or zone has its own indoor unit, giving you independent temperature control throughout the house. It’s often a good fit for older homes without existing ductwork, homes where adding ductwork isn’t practical, and homeowners who want room-by-room temperature control.
How long does a mini-split installation take?
Most single-zone installations take one day. Multi-zone systems typically take two days depending on the number of zones and how the home is laid out. We’ll give you a clear timeline before the job starts.
What is a mini-split system and how does it work?
A mini-split is a ductless heating and cooling system. It has two main components — an outdoor compressor and one or more indoor air handlers mounted on the wall or ceiling. Refrigerant runs between them through a small line set, no ductwork required. Each indoor unit controls its own zone independently, so you can heat or cool specific rooms without affecting the rest of the house.
Do mini-splits cool as well as central air?
Yes. In the right application, mini-splits can cool extremely well because they deliver cooled air directly into the room without relying on ductwork. In older homes with aging or poorly performing ducts, mini-splits are often noticeably more effective in the areas they serve. The tradeoff is coverage — a single unit handles a specific zone rather than the whole house unless it’s designed as a multi-zone system.
Can a mini-split heat as well as cool?
Yes. Most mini-splits are heat pumps — one system that handles both heating and cooling. In Los Angeles, where winters are mild, they’re well-suited for heating: efficient, effective, and without relying on gas combustion. For most LA homes, a mini-split handles winter comfortably.
What does a mini-split look like inside the house?
Most mini-splits use a wall-mounted indoor unit installed high on the wall. Other options include ceiling cassettes, which sit flush with the ceiling, and floor-mounted units for rooms where wall space is limited. The best style depends on the room, how it’s used, and the look you’re after.
We’ll help you choose the right placement before installation so the system performs well and looks like it belongs.
Find Out If a Mini-Split Is Right for Your Space
If your existing mini-split isn’t performing the way it should, or you’re planning an addition, ADU, or other space where ductwork isn’t practical, we’ll take a look and tell you what makes sense.