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When your AC unit stops keeping up with Los Altos Hills summers, you’re not just uncomfortable—you’re watching your energy bill climb while half your house stays warm. That ends with the right air conditioning unit replacement.
You’ll get a system sized correctly for your home’s square footage and layout, not one that’s too small to cool or too large to run efficiently. We match your home to the right tonnage, whether that’s a 2.5-ton unit for a smaller ranch or a 5-ton system for a sprawling custom build with vaulted ceilings and multiple exposures.
Modern systems meeting California’s 14.3 SEER2 standard cut your cooling costs significantly compared to older units. Most homeowners see the difference in the first summer, and with federal tax credits covering up to 30% of installation costs, the system starts paying for itself faster than you’d think. You’re not just replacing an air conditioner—you’re fixing what wasn’t working and setting up 15 to 20 years of reliable cooling.
We’ve been installing and servicing HVAC systems in the San Jose area since 1985. That’s 39 years of working in homes like yours—large custom properties with complex layouts, multiple zones, and cooling challenges that cookie-cutter solutions don’t solve.
We’re licensed, insured, and locally owned. Our technicians know how Los Altos Hills homes are built, how the Mediterranean climate affects your cooling needs, and what it takes to keep systems running when summer temperatures spike. You’re working with people who’ve seen every AC problem this area throws at homeowners, and we’ve solved most of them more than once.
We don’t pressure you into same-day decisions or demand payment before work starts. You’ll get a free estimate, straight answers about what your home needs, and the time to make the right call for your family and your budget.
First, we come to your home and assess what you actually need. That means measuring your square footage, checking your ductwork, evaluating your current system’s performance, and talking through any cooling issues you’ve been dealing with. You’ll know what size unit your home requires and what efficiency level makes sense for your usage and budget.
Once you approve the estimate, we schedule your installation at a time that works for you. Our team removes your old system, installs the new air conditioning unit, tests airflow and refrigerant levels, and makes sure every zone in your home is cooling properly. We don’t leave until your thermostat is set and your system is running the way it should.
After installation, you’ll have a system that meets California’s current efficiency standards, comes with manufacturer warranties, and has our support if anything needs adjustment. We’re available for maintenance, repairs, and emergency service—24/7 if something goes wrong outside business hours. Your AC replacement in Los Altos Hills, CA isn’t a one-time transaction. It’s the start of keeping your home comfortable for the next two decades.
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Your home AC replacement in Los Altos Hills, CA includes complete removal of your old unit, professional installation of your new system, and thorough testing to confirm everything works before we leave. You’re getting a SEER2-compliant air conditioner that meets California’s efficiency requirements, properly sized for your home’s cooling load.
Los Altos Hills homes average larger than most Bay Area properties, and many feature open floor plans, high ceilings, and extensive glazing that increases cooling demands. Your new system accounts for these factors. We calculate heat gain from sun exposure, adjust for insulation quality, and factor in how many people typically occupy your home. That’s how you end up with an AC unit replacement that actually keeps up, instead of one that runs constantly and still leaves rooms warm.
You’ll also get guidance on available rebates and tax credits. Federal incentives currently cover 30% of qualifying system costs, and California utility companies offer additional rebates for high-efficiency installations. We walk you through what applies to your situation so you’re not leaving money on the table. And if you’re a senior or military family, you’ll automatically receive our 15% service discount—no special requests needed.
If your system is over 15 years old and repair costs are climbing past $1,500 to $2,000, replacement usually makes more financial sense. Older units break down more frequently, and parts for discontinued models get expensive fast.
You should also consider replacement if your energy bills have jumped without explanation, if your AC runs constantly but doesn’t cool evenly, or if you’re adding refrigerant every year. These are signs the system is failing, and pouring money into repairs just delays the inevitable.
California’s new efficiency standards mean any AC installed today must meet 14.3 SEER2 minimum ratings. If your current unit is rated below that—and most systems over a decade old are—you’re paying significantly more to cool your home than you would with a modern replacement. Sometimes the repair is worth it. Often, it’s not. We’ll give you the honest assessment either way.
Most Los Altos Hills homes need between 2.5 and 5 tons of cooling capacity, depending on square footage, layout, insulation, and sun exposure. A 2,000-square-foot home typically requires around 3 to 4 tons, but that’s a starting point—not a final answer.
Homes with vaulted ceilings, large windows facing south or west, or poor attic insulation need more capacity than homes with standard 8-foot ceilings and good insulation. If your home has multiple stories or wings, you might need a zoned system or multiple units to cool everything evenly.
Oversizing causes problems too. An AC that’s too large for your home will cool quickly but won’t run long enough to remove humidity, leaving your house clammy. It’ll also cycle on and off more frequently, which wears out components faster and drives up your electric bill. Proper sizing requires a load calculation—something we do for every air conditioner replacement in Los Altos Hills, CA before recommending a system.
AC replacement in Los Altos Hills, CA typically ranges from $5,000 to $12,000 depending on system size, efficiency rating, and installation complexity. Larger homes with multi-zone systems or difficult access will be on the higher end. Straightforward single-unit replacements with existing ductwork cost less.
Federal tax credits currently cover up to 30% of installation costs for qualifying high-efficiency systems, which can save you $1,500 to $3,600 depending on your total project cost. California utility companies also offer rebates for SEER2-compliant installations, and those stack with federal incentives.
We offer free estimates so you know exactly what your home needs and what it’ll cost before making any decisions. If you’re a senior or military family, you’ll automatically get 15% off. And if budget is tight, we can discuss financing options that spread payments over time instead of requiring everything upfront. The goal is getting your home comfortable again without creating financial stress.
Most residential AC system replacements in Los Altos Hills, CA take one full day—usually six to eight hours from start to finish. That includes removing your old unit, installing the new system, connecting refrigerant lines, testing airflow, and making sure your thermostat controls everything properly.
More complex installations take longer. If your ductwork needs modification, if we’re installing a multi-zone system, or if your home requires electrical upgrades to handle the new unit, expect a day and a half to two days. We’ll give you an accurate timeline during your estimate so you can plan accordingly.
We don’t rush installations to squeeze in more jobs. Your AC replacement gets done right the first time, which means proper refrigerant charging, leak testing, and airflow balancing before we leave. Cutting corners saves an hour during installation but costs you years of system life and hundreds in efficiency losses. That’s not how we work.
Your new air conditioning unit needs annual maintenance before cooling season starts—ideally in early spring before temperatures climb. That service includes cleaning coils, checking refrigerant levels, inspecting electrical connections, testing capacitors, and replacing your air filter.
You should also change your filter every one to three months depending on usage and whether you have pets or allergies. A clogged filter forces your system to work harder, reduces airflow, and can cause the evaporator coil to freeze. It’s the simplest maintenance task that prevents the most problems.
Most manufacturers require proof of annual maintenance to keep your warranty valid. Skip the service, and you might void coverage on a $6,000 to $10,000 investment. We offer maintenance plans that handle everything automatically—you don’t have to remember to call, and your system gets serviced on schedule every year. It’s how you protect your AC replacement in Los Altos Hills, CA and make sure it lasts the full 15 to 20 years you’re paying for.
You can replace your air conditioner any time of year, but spring and fall are your best windows. Demand is lower, scheduling is easier, and many HVAC companies offer off-season discounts because they’re not slammed with emergency calls from homeowners whose AC died during a heat wave.
Replacing your system in March or April also means you’re ready before summer temperatures hit. You’re not scrambling for availability when every other homeowner in Los Altos Hills suddenly needs service, and you’re not sweating through a week-long wait while crews work through a backlog.
If your AC is limping along but still functional, don’t wait until it dies completely. You’ll have more time to compare options, get multiple estimates, and make a decision based on what’s best for your home—not what’s available for emergency installation next Tuesday. Planning your air conditioner replacement in Los Altos Hills, CA ahead of peak season saves you stress, often saves you money, and guarantees you’re not stuck in a hot house while you wait for installation.
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