A mini split puts heating and cooling into rooms the ducts do not reach. One outdoor unit, one or more indoor heads, and a small hole through the wall for the refrigerant lines. Each head has its own remote and its own temperature.
Because a mini split is a heat pump, the same unit covers summer and winter. Whether it works well comes down to three things: the size, where the two pieces go, and whether the room is ready for it.
Most of the calls we get after a bad mini split installation trace to one of two things: a head that is too big for the room, or a drain line that was not sloped to the outside. Both are decided on installation day and both are hard to fix later.
Why people call us for mini split installation
- Adding comfort to one room
- ADU or garage conversion
- No ductwork
- Quiet, efficient heating and cooling
- Off-gas upgrade
$69 diagnostic, credited toward the work
- Site survey and head placement
- Line set routing and finish
- Line set and disconnect tie-in
- Commissioning
- Controls walkthrough
How a mini split installation goes
The room gets measured first: size, insulation, windows and how the space is used. A garage conversion and a bedroom of the same size do not need the same unit.
Then the two pieces get placed. The indoor head goes where air can reach the whole room; the outdoor unit goes where it can breathe and the line run stays short. You get a written quote with the equipment and the number of heads before anything is ordered.
On installation day the lines are run through one small hole, the condensate drain is sloped to the outside, and the system is pressure-tested, evacuated and started. You get shown the remote, the modes and how to wash the filters. Our labor carries a one-year warranty on top of the manufacturer's.
We repair, maintain and install these brands. Logos identify the equipment we work on and do not imply endorsement by the manufacturer.
Before you call
Size decides comfort
An oversized head reaches temperature in minutes, shuts off and swings. The room never dehumidifies and the temperature seesaws. Ceiling height, an uninsulated roll-up door and west-facing glass count more than square footage. Read more
One hole, one wall
The refrigerant lines, the communication wire and the drain go through a single small hole behind the head. Where the head goes decides where the outdoor unit can sit and how long the line run is, which is why placement comes before equipment. Read more
It heats as well as it cools
A mini split is a heat pump. The same unit covers a cold January night and a September heat wave, and it runs at partial speed instead of slamming on and off, which is why it is quiet. Read more
Permits apply here too
A mini split is space-conditioning equipment, so the installation is permitted and inspected like a central system. It is part of the quote, not an extra.
The drain has to slope
The condensate hose runs out through the wall beside the refrigerant lines and has to fall all the way to the outside. A hose that dips or runs flat is the usual reason a new head starts dripping down the wall. Read more
More on mini splits
Common questions
Rooms the ducts do not reach: a garage conversion, a backyard unit, an addition, or a house with no ductwork at all. It needs one small hole through the wall, has its own thermostat, and heats as well as cools because it is a heat pump. Read more
Yes. A multi-zone system feeds two or more indoor heads from one outdoor unit, each with its own remote and setpoint. One limit: every head runs in the same mode, so it cannot heat one room while it cools another. Read more
It depends on the attic and the ducts you already have. If the existing ductwork is sound, a ducted heat pump can reuse it. If the ducts are leaky, undersized or missing, ductless heads avoid that work entirely. Read more
Wash the indoor filters regularly, keep the outdoor unit clear, and have the coils, the drain and the charge checked by a technician. A clogged drain line is the usual reason a head starts dripping water. Read more
American Standard, Bryant, Carrier, Daikin, Goodman, Lennox, Mitsubishi Electric and York.
Yes, on new systems, through Wisetack: monthly plans on approved credit. Checking your options does not affect your credit score. Read more
A single-zone system is usually done in a day. Multi-zone systems with several heads and longer line runs typically take two days. You get the schedule with the written quote.
“Dave took care of my family and I during the heat wave! Diagnosed the problem, got it fixed, and was on his way to the next house. Great service! Thank you!”
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818-277-5056Licensed #1119892 · Veteran-owned · Pasadena & Reseda