Air Handler Service
Air Handler Replacement and Installation in Los Angeles
HUS replaces and installs air handlers for heat pump and central AC systems across Los Angeles, matched to your outdoor unit, sized to your ducts and installed with the drainage, electrical, permit and startup work done right. Free written installation estimate.
Licensed in California · CSLB #1031989 for HVAC · Top 500 Remodeler · Serving Greater Los Angeles
✓ Daikin systems installer
Matched, right-sized systems
Direct answer
When does an air handler need to be replaced?
Common signs are water leaking around the indoor unit, a failing or noisy blower motor, a rusted drain pan or cabinet, a leaking indoor coil, weak or uneven airflow, and repeated repairs. Replacement is also needed when a new outdoor unit is installed and the old indoor coil is not a listed match or uses an older refrigerant.
Replacing only the indoor air handler can make sense when the outdoor heat pump or condenser is fairly new, in good condition, and has a manufacturer-listed match with the new air handler. When both sides are older, replacing them together usually gives the cleanest result.
What changes an air handler replacement estimate
- Capacity, efficiency tier and blower type (multi-speed, variable-speed or communicating)
- Whether the outdoor unit is replaced at the same time
- Location and access: attic, closet, garage or crawlspace
- Duct transitions, return-air changes and sealing
- Electrical circuit, disconnect and any electric heat strips
- Drain pan, float switch and condensate routing
- Permits, inspection and any required ECC field verification
Every estimate is written for your home after an assessment. We do not quote a flat price before seeing the equipment, ducts and access.
Free HVAC estimate
Get your free HVAC estimate
Tell us where to send it. A HUS advisor follows up with your options, timeline and available incentives. No pressure.
- Licensed & insured California contractor, CSLB #1031989
- One trusted team, upfront itemized proposals
- No pressure, no obligation
Thank you
Request received.
A HUS advisor will reach out shortly with your HVAC estimate. Prefer to talk now? Call (833) 446-6387.
Local planning intelligence
What a correct air handler installation includes
The parts of the job that decide whether the new indoor unit performs.
Matched to the outdoor unit
Rated efficiency and capacity apply only to a listed combination of indoor and outdoor equipment. We confirm the match and the refrigerant type before ordering.
AHRI-matched combinationsElectrical requirements
The air handler needs a correctly sized circuit and disconnect. Electric heat strips, if used, add load, so panel capacity is reviewed during the assessment.
Condensate drain & overflow protection
A properly sloped drain line, a float or overflow switch, and a secondary drain pan where the unit sits above living space, such as in an attic.
Permits & ECC field verification
Air handler and system replacements in Los Angeles commonly require a permit and inspection. ECC field verification, formerly referred to as HERS testing, applies where the scope requires it.
Your HUS Blueprint™
Start with a Blueprint, not a sales pitch.
Answer a few questions about your home and goals. The Planner assembles a home-specific plan you can actually review.
- Address confirmed
- Utility detected
- Home profile added
- System selected
- Rebate path reviewed
- Blueprint ready
What we install & service
Air handler replacement, installation & airflow.
Air handler replacement
Replace a leaking, noisy, rusted or failing indoor unit with a correctly matched air handler, with or without a new outdoor unit.
New air handler installation
Air handlers for new ducted systems, additions and remodels, sized with a load calculation and the existing or new ductwork.
Heat pump air handlers
Indoor units paired with a ducted heat pump for all-electric heating and cooling, with optional electric heat strips sized to the home.
Learn more →Central AC air handlers
Air handlers or matched coils paired with a new AC condenser where the home keeps a separate heat source.
Learn more →Variable-speed & communicating units
Variable-speed blowers and communicating controls for quieter operation, steadier temperatures and better humidity control, with a compatible thermostat.
Duct sizing, return air & balancing
Return-air sizing, static pressure and room-by-room airflow checked so the new unit can deliver its rated airflow.
Learn more →
Clean installation
Startup, warranty and documentation
After installation the system is commissioned: refrigerant lines are pressure tested and evacuated, the charge is set, and airflow and static pressure are checked. You receive the equipment model and serial numbers, the startup readings, the permit and inspection status, and the manufacturer warranty registration details.
Inside the cabinet
Air handler components we review and replace
Before replacing an AC system, HUS reviews the outdoor condenser, indoor coil, furnace or air handler, ductwork and return air, line set, thermostat and zoning, and the electrical disconnect. Homes with rooftop or all-in-one systems may need packaged-unit planning instead of a standard split. A right-sized plan looks at the whole system, not just the outdoor unit.
Repair or replace the air handler?
| Situation | Usually |
|---|---|
| Failed capacitor, relay, control board or clogged drain on a newer unit | Repair |
| Blower motor failure on a unit that is otherwise in good condition | Repair, after checking age and parts availability |
| Leaking indoor coil, rusted pan or cabinet, repeated repairs | Replace |
| New outdoor unit with an older refrigerant or a non-matched coil | Replace with a matched air handler |
How an air handler installation works
- In-home assessment: existing equipment, model numbers, ducts, return air, electrical and location
- Load calculation and matched equipment selection, then a free written installation estimate
- Permit application where required
- Removal of the old unit and preparation of the platform, closet or attic space
- Set the new air handler, connect refrigerant lines, condensate drain, overflow protection, electrical and duct transitions
- Pressure test, evacuation, charge, airflow and static pressure checks at startup
- Inspection and any required ECC field verification, then handoff of startup and warranty documentation
Why HUS
One trusted team, one accountable plan.
One team
HVAC, electrical, permits and rebates coordinated by one licensed team. No handoffs between contractors.
Real planning
Every project starts as a Blueprint: sizing, scope, equipment tier and rebate path, documented before work begins.
Licensed work
California licensed and insured. CSLB #1031989 for HVAC.
Manufacturer-backed systems
Equipment from established manufacturers, installed to spec so the warranty means something.
Clean installation
Protected floors, tidy line sets, hauled-away old equipment, and a final walkthrough.
Comfort & Satisfaction Guarantee
The same guarantee that backs every HUS project. Maintenance, tune-ups, and a team that answers the phone after the install.
★★★★★
Real reviews from HUS homeowners
“They were super fast to respond and equally fast in scheduling time to come out. Elia came out to perform my service and inspection. He was incredibly knowledgeable.”
“We are so happy with our decision to use Home Upgrade Specialist for our HVAC install. We live in a 2-story historic craftsman… and a desire to keep its historic integrity.”
“I would give 10 stars if I could. Raymundo A is the real MVP who saved my day… Now I know whom to call if I have any HVAC issues. Highly, highly recommended!”
Questions Los Angeles homeowners ask
Answers, before the site visit.
How do I know my air handler needs to be replaced?
Water around the indoor unit, a rusted pan or cabinet, a leaking coil, a failing blower, weak airflow and repeated repairs are the most common signs. A technician can confirm whether a repair or a replacement makes more sense.
Can you replace only the indoor air handler?
Yes, when the outdoor unit is in good condition and the manufacturer lists the new air handler as a match for it. If the outdoor unit is older or uses an older refrigerant, replacing both is usually recommended.
How long does air handler replacement take?
A straightforward replacement is often completed in a day. Jobs that include duct changes, electrical work or a new outdoor unit can take longer.
What affects the cost of air handler replacement in Los Angeles?
Capacity, blower type, whether the outdoor unit is replaced, access, duct and electrical work, drainage and permits. HUS provides a free written estimate after an assessment instead of a flat price.
Do I need a permit to replace an air handler in Los Angeles?
Air handler and HVAC system replacements commonly require a permit and inspection. Depending on the scope, ECC field verification may also be required. HUS handles the permit as part of the job.
Do you install variable-speed and communicating air handlers?
Yes. Variable-speed and communicating models are available for many systems; they need a compatible outdoor unit and thermostat, which we confirm during the assessment.
Related HVAC pages
Get a free written air handler installation estimate
Call or text (833) 446-6387, or build your plan online. We review the indoor and outdoor equipment, ducts, drainage and electrical, then give you a written estimate with matched models.