Top-rated independent heating and cooling across California's Central Valley and the Sierra foothills
AC Installation in Los Altos, CA — Book a Visit Today
When a system needs three repairs in two summers, or the compressor is done, replacement usually costs less over time than another patch. We handle AC installation in Los Altos, and we start by measuring the house rather than matching whatever sticker is on the old cabinet. Room count, insulation, window exposure, and duct size all change the BTU load, and an oversized unit short cycles and leaves humidity behind. We will walk you through options for your ductwork and where the equipment sits. Tell us about your current system and comfort complaints through the quote form, or call and we will schedule a look.
Call (888) 381-2953- A real person answers
- Open 7 days
- Written quote before work starts
Taking calls until 5:00 PM PT
Common AC installation faults in Los Altos homes
- The AC runs all day and the house still will not cool Undersized or worn-out system, failing compressor, duct losses
- We have had it recharged three summers in a row Repeat refrigerant leak in an aging coil or line set, replacement territory
- Repair quote is climbing on a unit past fifteen years End-of-life system, obsolete refrigerant, parts availability
- Back bedrooms and the converted garage never get cool Duct reach and distribution problems, candidate for a ductless mini-split
- The outdoor unit is loud, rusted and shuts off on hot afternoons Failing compressor or condenser, heat-related tripping
Search for it as AC installation or air conditioner installation and you land in the same place: one visit, one written quote.
Los Altos coverage
From Los Altos we also cover Los Altos Hills, Mountain View, Palo Alto, Sunnyvale, Cupertino, Santa Clara and Menlo Park.
Other repairs we do in Los Altos
Permits, codes and rebates in Los Altos
Here in Los Altos, Pacific Gas and Electric Company (PG&E) supplies electricity and gas.
Before you buy, look at TECH Clean California heat pump incentives and Energy Upgrade California. We will not promise something that closed last quarter, but we will tell you what is running when we quote.
Equipment changeouts are governed by California Title 24, Part 6 and normally call for a permit, with HERS verification and CF2R/CF3R registration on most changeouts. City of Los Altos Building Division handles them.
The federal 25C Energy Efficient Home Improvement Credit applies to qualifying equipment, and the efficiency tier it requires is worth checking before you choose a system.
Guides & troubleshooting
How we compare to other HVAC companies in Los Altos
| Central Valley Air | Big-box repair chains | Handyman listings | |
|---|---|---|---|
| Written quote before any work | ✓ | ✕ | ✕ |
| Live answer seven days a week | ✓ | ✕ | ✓ |
| Every major brand, gas or electric | ✓ | ✓ | ✕ |
| Independent, no manufacturer quotas | ✓ | ✕ | ✓ |
| Crews familiar with homes like yours | ✓ | ✕ | ✓ |
The same on every visit
The quote comes first, in writing
Covering 123 cities across California, Nevada.Phones answered by people
Open 7 days, 8:00 AM to 5:00 PM PT.Independent of every manufacturer
Carrier, Trane, Lennox, Goodman and more. We are not an authorized dealer for any of them.AC Installation in Los Altos — quick answers
How do I know whether to repair or replace my AC?
Age, refrigerant type and repair history decide it. A newer system with one bad part is worth repairing. A unit past its mid teens that has leaked refrigerant repeatedly and needs a major component usually costs more to keep alive than to replace.
How long does an AC installation take?
A straightforward changeout on an existing central system is usually a one-day job. Attic package units, new duct runs, electrical upgrades or multi-zone ductless work can run into a second day. We give you the expected schedule before we start.
Do you size the new system or just match what is there?
We measure. Matching the old tonnage repeats old mistakes, and oversized equipment short-cycles and leaves humidity behind. We look at square footage, insulation, window exposure and duct capacity, then recommend a size that holds temperature through the hottest part of the day.
Is a ductless mini-split worth it for one hot room?
Often yes. Additions, converted garages, upstairs bedrooms and offices at the end of a long duct run are hard to fix with ductwork alone. A mini-split gives that space its own control without tearing into walls for new ducts.
How soon can you get to a Los Altos home for AC repair?
Call us and we will give you the next available window rather than a vague promise. Most Los Altos calls land same day or next day, though the first real heat stretch of the summer fills the book fast, so earlier in the day is better. Tell us the thermostat setting, the indoor temperature and whether the outdoor unit is running, and we will bring the parts that match the symptom.
How it works
- Step 1
Tell us the symptom
Call or fill in the quote form. We ask what changed, when it started, and what the thermostat reads. That tells us whether to bring parts for a cooling fault or a heating fault.
- Step 2
We diagnose on site
A technician checks the thermostat, the electrical side, airflow through the filter and coil, refrigerant pressures, and the outdoor unit. You get told what failed and why, in plain words, before anything is replaced.
- Step 3
Repair and verify
We make the repair, then run the system and measure the results at the vents. If a part needs ordering, we say so and give you a realistic window instead of a vague promise.
- A real person answers
- Open 7 days
- Written quote before work starts
Why homeowners call us
- Built for real valley heatWe work in areas where afternoons sit above 110 degrees and systems run for months without a break. That shapes how we size repairs, check capacitors and contactors, and judge whether a compressor is genuinely done.
- Attic and package unitsPlenty of homes across the region run attic air handlers or rooftop package units instead of a garage furnace and a side-yard condenser. We are used to the access, the duct runs, and the drain issues those setups bring.
- Dust and debris we expectAg dust, cottonwood fluff and grass clippings pack condenser coils and starve a system of airflow. We clean what we find and show you the difference, rather than adding refrigerant to a unit that just could not breathe.
- Heating too, not only ACFurnace repair, heat pump faults and no-heat calls get the same attention as summer work. Ignition problems, cracked or failing components and short cycling all get diagnosed before we recommend anything larger.
- All major brands, gas & electricFrom Carrier and Trane to Lennox, Goodman, Rheem and Bryant, serviced independently.
- Straight answersWhen a replacement beats a repair, we tell you, sometimes before we roll a truck.
AC Installation in Los Altos
The longer it sits broken, the more it takes from you
Describe the fault, approve the written quote, get it fixed. Starting takes about a minute.
- A real person answers
- Open 7 days
- Written quotes
- All major brands
- Gas & electric
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