The short answer
Yes, CoolVantage HVAC Service serves Lexington Hills, about 10 miles southwest of our San Jose base. We handle heating and cooling repair, installation, maintenance, duct cleaning and indoor air quality for homes throughout the area.
CoolVantage HVAC Service works in Lexington Hills, the unincorporated Santa Clara County community about 10 miles southwest of our San Jose base. We repair and install air conditioners, furnaces, heat pumps and ductless mini-splits. We also handle the maintenance and air quality work that keeps a system running well between visits. If your heat quits on a damp winter night or your AC struggles through a dry summer stretch, we'll come out, find the cause, and explain your options in plain terms before any work starts.
Heating and Cooling for the South Bay Climate
The Santa Clara Valley has a Mediterranean climate, with dry summers and mild, damp winters. Most homes here need both heating and cooling, but neither system runs flat out for months at a time. Inland and southern parts of the valley get noticeably hotter in summer than areas near the Bay, and conditions can vary from one property to the next. So we size and tune equipment for the house we're actually working on, not for a rule of thumb.
The climate also affects what happens inside your ductwork. Damp winter months can lead to musty odors, and long dry summers bring dust that settles into filters and ducts. That's why we often check filters, ducts and indoor air quality while we're out for a repair. It's usually the easiest time to catch a small problem before it affects comfort or efficiency.
Services We Offer in Lexington Hills
Whether you need a quick fix or a full system change, here's what we can help with:
- AC Repair: diagnosing weak airflow, warm air, short cycling, leaks and electrical faults.
- AC Installation: properly sized central air systems matched to your home and ductwork.
- Heating Repair: getting heat back on when the system won't start, runs constantly or blows cold.
- Furnace Repair: ignition, blower, flame sensor and safety control problems on gas furnaces.
- Furnace Installation: replacing an old or failed furnace, with a clear look at alternatives.
- Heat Pump Installation: all-electric heating and cooling in one system, well suited to mild winters.
- Ductless Mini-Split Installation: zoned comfort for additions, converted spaces and homes without ducts.
- HVAC Maintenance: seasonal tune-ups that check refrigerant, airflow, burners, electrical connections and drainage.
- Duct Cleaning: removing built-up dust and debris that affects airflow and indoor air.
- Indoor Air Quality: filtration and ventilation options for dust, odors and stuffy rooms.
Repair or Replace? How We Approach It
We start with a diagnosis, not a sales pitch. Many problems are worn parts, dirty components or airflow restrictions that a repair will solve. When replacement does make sense, we walk you through the reasons: the system's age and repair history, how evenly it heats and cools your rooms, and how much energy it uses compared with newer equipment.
If you're replacing a system, we'll compare a like-for-like swap with options such as a heat pump or ductless mini-splits so you can make the decision that fits your home and budget. Because Lexington Hills is unincorporated, permits for installation work go through Santa Clara County rather than a city building department, and we factor that into planning.
What Local Rules Mean for Your Furnace
Under Bay Area Air District Rule 9-4, natural gas furnaces manufactured from 2029 on must meet a zero-NOx emission standard. In practice, that points homeowners toward heat pumps when a furnace is replaced after that date. The Air District's appliance rules do not require you to replace working equipment. They apply only when an existing furnace fails or is replaced.
On the incentive side, the federal Energy Efficient Home Improvement Credit (25C) covered qualifying heat pumps placed in service before December 31, 2025, and it is not available for new installations after that date. Bay Area homeowners can still check BayREN and their local clean energy provider for current heat pump and electrification incentives. Amounts and availability change by funding cycle, so we confirm the current offer before including it in a quote.
Also Serving Nearby Communities
Along with Lexington Hills, we regularly work in Los Gatos, Monte Sereno, Saratoga, Campbell and Cupertino. If you have family or a second property nearby, we can help there too.