
AC Repair, Installation & Maintenance
AC Not Cooling? Call Premier.
Central air conditioning service across the Greater Los Angeles area. We diagnose the actual issue before recommending a fix, and walk you through it in plain terms.
How It Works
How a Service Call Works
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Call or request service
Call (626) 791-0001 or send a request. We're open Monday to Friday, 7:30 AM to 4:30 PM.
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We diagnose the problem
A technician finds the actual cause before recommending a fix.
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Approve the cost, then we fix it
We walk through the scope and cost with you before any work begins.
AC Repair

When an air conditioner stops cooling, blows warm air, or short cycles, the cause is usually narrowed down in a single visit. Our technicians check refrigerant charge, electrical components, airflow, and the condenser and evaporator coils before recommending a fix.
We work on the AC systems already common in homes across the Greater Los Angeles area, from older split systems to newer high-efficiency units, and carry the parts to close out most repairs the same day.
Signs your AC needs repair
- No cooling or weak airflow from vents
- Warm air blowing instead of cold
- Unusual noises, cycling, or rising energy bills
- Refrigerant leaks and thermostat issues
AC Repair FAQs
How do I know if my AC needs repair or replacement?
A common rule of thumb: if the repair costs more than about half the price of a new system, and the unit is past 10 years old, replacement is usually the better value. Below that threshold, a repair typically makes more sense. A technician can walk through those numbers on site and give you a straight recommendation rather than defaulting to the most expensive option.
Why is my air conditioner blowing warm air?
Common causes include a low refrigerant charge, a failing compressor, a dirty condenser coil, or an electrical or thermostat problem. A diagnostic visit narrows it down before any repair is recommended.
Do you work on all AC brands and system types?
Yes, our technicians service most major residential and light commercial air conditioning brands, including split systems, package units, and ductless mini-splits.
Is same-day AC repair available?
In many cases, yes. Most repairs are diagnosed and completed in a single visit, though less common parts can occasionally require a follow-up trip.
AC Installation

Replacing an aging air conditioner is a chance to correct problems the old system never solved, uneven cooling, high summer bills, or a unit that was oversized or undersized from the start. We size the new system to the home rather than matching the equipment that is already in place.
Every installation includes a load calculation, a review of existing ductwork, and a walkthrough of the equipment and warranty before the crew leaves.
What to expect with a new installation
- Load calculations sized to the home, not just the old unit
- Ductwork inspected as part of the installation
- Manufacturer warranty registration handled for you
- Scope and cost reviewed with you before work begins
AC Installation FAQs
How do you decide what size AC system I need?
We run a load calculation based on the square footage, insulation, window exposure, and layout of the home, rather than simply matching the tonnage of the system being replaced.
Do I need to replace my ductwork when I install a new AC system?
Not always. We inspect the existing ductwork as part of every installation and only recommend changes where leaks, poor sizing, or damage would limit the new system's performance.
How long does a typical AC installation take?
Most residential replacements are completed in a single day. Installations that involve ductwork changes or new construction take longer, and we walk through the timeline before work begins.
Is the new equipment covered under warranty?
Yes. We register the manufacturer's equipment warranty on your behalf and review the coverage with you before the job is closed out.
What is R-454B and why does it matter for a new AC system?
As of January 1, 2025, federal regulations no longer allow R-410A refrigerant in new residential AC equipment, and manufacturers have shifted to lower global-warming-potential refrigerants, mainly R-454B and R-32. If you're installing a new system, it will use one of these. We size and charge every new install to the equipment manufacturer's specification for the refrigerant it ships with.
AC Maintenance

Most AC breakdowns start as something small: a dirty coil, a weak capacitor, a refrigerant charge that has drifted off spec. A tune-up before cooling season is when those get caught, before the system fails on the hottest day of the year.
A visit covers the outdoor condenser and indoor coil, electrical connections, refrigerant charge, and airflow, with a straightforward report on anything that needs attention.
What to expect from AC maintenance
- Annual tune-up recommended before cooling season, twice a year for heavily used or older systems
- Refrigerant charge checked against manufacturer specs
- Coil cleaning and electrical connection checks
- Filter and airflow inspection
AC Maintenance FAQs
How often does an AC system actually need maintenance?
Once a year, ideally in spring before cooling season starts, is enough for most residential systems. Units that run heavily through a long cooling season, or that are already past 10 years old, benefit from a second check-up in fall.
What happens during an AC tune-up?
A technician checks the refrigerant charge against the manufacturer's specification, cleans the condenser and evaporator coils, tests electrical connections and capacitors, and inspects the filter and airflow. Anything that needs attention gets reported before it becomes a breakdown.
Does skipping maintenance really shorten the life of an AC system?
It can. A system running with a dirty coil or a refrigerant charge that has drifted off spec works harder to produce the same cooling, which adds wear to the compressor over time. Regular maintenance is one of the more effective ways to protect the lifespan of the equipment.
Is maintenance worth it on an older system I might replace soon?
Often yes. A tune-up is inexpensive relative to an emergency repair, and it can tell you whether the system is likely to make it through another season or whether planning for replacement makes more sense.
Request Service
Request a Quote
Not Sure Which Service You Need?
Call (626) 791-0001 and we'll help you figure it out.
Call (626) 791-0001Serving the Greater Los Angeles area
- Pasadena
- Altadena
- Monrovia
- Arcadia
- San Marino
- La Cañada Flintridge
- Eagle Rock
- South Pasadena
- Alhambra
- San Gabriel
- Glendale
- La Crescenta-Montrose
Based in Pasadena, serving homes and businesses throughout the San Gabriel Valley and beyond.
