The short answer
ClearSky Heating & Cooling serves East Palo Alto, about 13 miles northwest of San Jose. We fix furnaces and air conditioners, install heat pumps and ductless mini-splits, and help control moisture, dust and stale air in older homes near the Bay.
East Palo Alto is about 13 miles northwest of our San Jose base, in San Mateo County, on the low ground close to the Bay. That location gives the city a gentler summer than the inland valley, along with damp winter months when moisture lingers in crawlspaces and on windows. For many households, reliable heat and good indoor air matter as much as air conditioning does. ClearSky Heating & Cooling brings repair, maintenance and installation service here, with an eye on efficiency, moisture and the realities of compact older houses.
What a bayside climate means for your system
Communities near the water stay milder in summer than the hotter inland and southern parts of the valley. Many East Palo Alto homes get by with fans or a single window unit most of the year, and only feel the need for real cooling during occasional heat waves. Winters, on the other hand, bring weeks of cool, damp weather when a dependable heating system is essential.
That balance makes heat pumps an especially good match. They deliver efficient heat through the damp season and can cool the house during those warm spells, all from one outdoor unit.
Moisture, mold risk and indoor air
Damp air near the Bay finds its way into crawlspaces, ducts and wall cavities. When ductwork runs through a crawlspace with gaps at the joints, the system can draw in musty air and spread it through the rooms. Condensation on cold metal ducts adds to the problem.
We inspect accessible ducts for gaps and wet insulation, check that the furnace or air handler is drawing return air from inside the home, and look at bathroom and kitchen ventilation. Small fixes often bring noticeable improvement.
- Sealing and insulating crawlspace ducts
- Upgraded media filters for dust and pollen
- Duct cleaning when debris or odors are present
- Ventilation and humidity checks
Smaller homes without ducts
Some houses in older neighborhoods were built with wall or floor heaters and no central ductwork at all. Adding a full duct system to a compact house can be disruptive and may eat into closet or attic space. A ductless mini-split avoids that. Indoor heads mount high on walls, a small line set runs to an outdoor unit, and each room can be set to its own temperature.
Mini-splits also suit additions, converted garages and accessory units on the same lot, where tying into the main house system is impractical.
Repairs we handle most often
Most service calls fall into a handful of patterns. Furnaces fail to light because of a worn igniter or dirty flame sensor; blowers slow down as motors age; air conditioners lose capacity after a slow refrigerant leak; thermostats lose their settings or miscommunicate with equipment. We diagnose first, explain what failed and why, and give you a clear choice before any work begins.
Salt-tinged, humid air near the water is also harder on outdoor equipment than the dry inland valley. Coil fins corrode, electrical terminals oxidize and fan motor bearings wear sooner. Rinsing the outdoor coil, tightening connections and inspecting the cabinet for rust during an annual visit keeps small corrosion problems from turning into a failed compressor.
Keeping energy use in check
Heating a drafty house through a long damp winter adds up. Before suggesting new equipment, we look for the losses that waste energy no matter what system you have: ducts disconnected under the floor, return air pulled from a cold crawlspace, a thermostat mounted on an exterior wall, or a filter so clogged the blower runs twice as long. Fixing those basics often makes the existing furnace feel noticeably stronger.
When replacement does make sense, an efficient heat pump paired with sealed ducts or a ductless layout cuts the hours your equipment runs. A programmable or smart thermostat set to lower temperatures overnight and while the house is empty helps as well, and we can show you how to set it up.
Replacement rules and incentives
When a gas furnace reaches the end of its life, the Bay Area Air District rules come into play. Rule 9-4 requires natural gas furnaces manufactured from 2029 to meet a zero-NOx standard, which in practice makes a heat pump the likely replacement after that date. The rules do not require anyone to replace equipment that still works.
On the cost side, the federal 25C tax credit ended for heat pumps placed in service after December 31, 2025. BayREN and the local clean energy provider offer electrification programs that change by funding cycle, and we check the current terms before quoting them. Our team also serves Mountain View, Newark, Los Altos, Sunnyvale and Fremont.