Furnace & heating
AC repair
Heat pumps
Ductless mini splits
Carrier
Trane
GoodmanSeasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
Get your free estimateFast, Reliable AC Installation Across Los Gatos
A new central air system in Los Gatos typically runs $3,500 – $7,500, and the job usually takes one to two days once equipment arrives. We serve every part of town, from the flats near downtown to the hillside lots off Kennedy Road and Summit Road. If your existing system is struggling through August heat, call us at (669) 800-4179 for a free estimate with a written price before any work begins.
What makes Los Gatos different is the housing stock. Many homes here were built decades ago with ductwork sized for a furnace only. Add air conditioning to that, and you get high static pressure, noisy registers, and rooms that never quite cool. Our AC Installation team measures before we quote, so you’re not buying a guess.
Why Cold Harbour Heating and Air San Jose Is Los Gatos’s Preferred AC Installation Company
We have spent years working inside Los Gatos homes, including the Craftsman and Victorian houses near downtown, the ranch styles on the valley floor, and the custom hillside estates that climb toward the Santa Cruz Mountains. That local experience matters because an AC install here rarely looks like one in Campbell or Cupertino. Older duct runs, split-level layouts, and canyon-facing exposures all change the equation.
Victor Mancini, who leads our team, is part of the Kingswell network, an independently owned and operated group of HVAC businesses held to written standards. That means each Los Gatos job gets a written price before work starts, a firm arrival window, a clean job site, and a written guarantee. When a repair is part of the install, it is covered by our 365-Day Done Right Promise. If it fails within a year, we return and fix it at no charge.
Our phones are answered by a live person 24 hours a day, seven days a week. No voicemail trees. If you call at 11 p.m. from a hot house on Blossom Hill Road, a person picks up. Our technicians are background-checked, uniformed, and trained on nine major residential HVAC brands, including Trane, Lennox, Goodman, Rheem, Carrier, and American Standard.
Styles & brands we work with







Heat Pump Installation in Los Gatos
Heat Pump Installation in Los Gatos is a strong fit for hillside homes that want efficient cooling and heating in one unit, especially where natural gas service is absent or where the homeowner wants to reduce gas use. A heat pump moves heat rather than generating it, which translates to lower operating costs in a climate like ours where winter lows rarely dip below freezing. Your installed cost typically falls within the broader $3,500 – $7,500 range for this market, depending on home size and electrical panel readiness.
High-Efficiency Air Sources
Modern heat pumps deliver reliable cooling even when outdoor temperatures climb into the 90s. For Los Gatos homeowners with solar panels, a high-efficiency heat pump can reduce monthly utility costs while improving summer comfort. We also check your panel capacity before recommending a unit.
Split-Level and Hillside Layouts
Hillside homes rarely have a simple rectangular footprint. Heat pumps paired with zoning or a ducted air handler configured for split levels can correct the upstairs-downstairs temperature gap that single-zone systems create. We evaluate each floor separately before we size anything.
Ductless Mini Split Installation in Los Gatos
Ductless Mini Split Installation in Los Gatos works especially well for older homes that were never built with central ductwork, or for additions and converted bonus rooms where running duct is impractical. A mini split uses a slim outdoor condenser connected to one or more wall-mounted indoor heads. For Los Gatos hillside properties with limited attic or crawlspace access, this is often the most direct path to comfort without opening walls.
Room-by-Room Zoning
Because each indoor head operates independently, you can cool only the rooms you are using. That matters in larger Los Gatos estates where cooling empty guest rooms wastes energy. Homeowners who work from home in a single office often run just that one zone.
Attic-Free Remodels
Some Los Gatos homes, especially mid-century ranch styles with flat or low-slope roofs, have almost no usable attic space. Trying to force central ducting into that envelope is expensive and rarely works well. A ductless system installs cleanly with only a small wall penetration, and the equipment is designed to be unobtrusive.
Trusted Brands We Service in Los Gatos
Our technicians install and service Trane, Lennox, Goodman, and Rheem, among other major brands. Because we regularly work in Los Gatos, our trucks carry common motors, capacitors, contactors, and control boards. That means fewer return trips and faster turnaround when a part is needed mid-install. If you already own a system from one of these brands and want to stay with it, we can match the equipment and register the manufacturer warranty properly.
See the difference
Before
After
Before
After
Before
AfterCommon AC Installation Problems We See in Los Gatos Homes
- Original ductwork that is too small. Many pre-1950 Los Gatos homes still have ducts sized for heating only. Putting a high-SEER2 AC unit on undersized ducts starves the system for airflow and can trip limit switches on hot days.
- Unbalanced hillside exposures. A ridge-facing master bedroom can run 8 degrees warmer than a canyon-shaded living room. Without a load calculation that accounts for elevation and exposure, a “correctly sized” system still leaves hot spots upstairs.
- Electrical panels near capacity. Some Los Gatos homes have 60-amp or 100-amp panels that cannot safely support a modern variable-speed blower and condenser. We check this before recommending equipment, because breakers tripping at 4 p.m. in a heat wave is a miserable discovery.
- Like-for-like replacements that ignore the remodel. Homeowners often replace a failed unit with the same tonnage, not realizing a previous owner added square footage or reconfigured rooms. That new system ends up short-cycling or running constantly without reaching set temperature.
Pricing for AC Installation in Los Gatos, CA
Here is what you can expect for AC installation work in Los Gatos:
| Service | Typical Range |
|---|---|
| AC Installation | $3,500 – $7,500 |
| Heat Pump Installation | $3,500 – $7,500 |
| Ductless Mini Split Installation | $3,500 – $7,500 |
These ranges reflect the Los Gatos market, where older homes often need duct modifications or electrical upgrades folded into the job. The final figure depends on home size, system capacity, efficiency rating, and whether we are reusing existing copper lines or running new ones. Every quote is a written line-item price, handed to you before any work begins. Call (669) 800-4179 for a free estimate.
We Also Serve Cities Near Los Gatos
If you live just outside Los Gatos in Saratoga, Campbell, Cupertino, or Santa Clara, we serve those areas as well. The same written pricing, 365-Day Done Right Promise, and live-person phone coverage apply. Dispatch and scheduling are coordinated from our San Francisco Bay Area office, with crews serving the Los Gatos area locally.
Serving Los Gatos, CA - Our Local Coverage Area
We’re based in the Los Gatos area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About AC Installation in Los Gatos
Elevation, sun exposure, and split-level layouts mean that two rooms in the same Los Gatos house can have very different cooling loads. A Manual J load calculation done by elevation is the fix here. Without it, you can install the right total tonnage and still end up with an upstairs that runs 8 degrees warmer than the downstairs living room. We calculate room-by-room, then design for the exposure that actually exists, not a generic benchmark. Call us at (669) 800-4179 if your current system is uneven.
Sometimes, yes. Many older Los Gatos homes still carry 60-amp or 100-amp panels. A variable-speed heat pump with auxiliary heat strips can draw more than those panels safely handle. We check panel capacity during the site visit, and if an upgrade is needed, we tell you before any equipment is ordered, with a written price for the entire project.
Yes. Ductless mini splits are installed with a small wall penetration and no ductwork, so homes with flat roofs, low-slope roofs, or no attic access can still get strong zoned cooling. That describes a good number of hillside properties off Kennedy Road and Summit Road. For a free evaluation of your home, call (669) 800-4179.
Look for a minimum of 16 SEER2, and higher if you have solar or expect to run the system heavily through summer heat waves. The warmer ridge exposures in Los Gatos reward higher efficiency because the cooling season runs long and peak temperatures push equipment hard. Higher SEER2 units cost more up front, but the operating difference is real when your condenser is working against 95-degree canyon air.
If you already have a replacement system going in, the new unit will come with its own capacitor rated for the compressor and fan motor. The old capacitor stays with the old unit. What matters more is that the new system’s electrical path is clean and correctly sized, which is part of every install we do in Los Gatos. We test before we leave.
If you live in Los Gatos and you are tired of a house that cools unevenly, call us at (669) 800-4179. We will come out, measure the house properly, and hand you a written price for a system that fits the way the place actually sits on the hill. Estimates are free.
Written by Victor Mancini, Owner at Cold Harbour Heating and Air San Jose, serving Los Gatos and the surrounding Bay Area.