The short answer
PerfectFix HVAC Services repairs furnaces, heat pumps and air conditioners in Fremont, Newark and Sunol, traveling about 23 miles from San Jose. We diagnose the real cause, explain your options plainly, and tell you how current Bay Area Air District rules affect a repair-or-replace decision.
PerfectFix HVAC Services travels about 23 miles from our San Jose base to repair heating and cooling systems for homeowners in southern Alameda County. We work in Fremont, Newark and Sunol, fixing furnaces, heat pumps, central air conditioners, and the ductwork and controls that connect them. On every visit we aim to find the actual cause, explain it plainly, and give you clear options before any work starts.
What We Repair
Most problems fall into a few patterns. A system that won't start, runs constantly without reaching the set temperature, turns on and off too often, or makes new noises usually has a specific, findable cause.
- Furnaces that won't ignite, shut off early, or blow cold air
- Heat pumps stuck in one mode, icing up, or struggling to keep up
- Central air conditioners that run but don't cool, or that trip breakers
- Thermostats, wiring and control boards sending the wrong signals
- Airflow problems from clogged filters, blocked returns or leaky ducts
- Condensate drain clogs and leaks around indoor equipment
How Local Weather Affects Your System
Southern Alameda County shares the broad Bay Area pattern of dry summers and mild, damp winters. In the Santa Clara Valley just to the south, inland areas run noticeably hotter in summer than spots near the Bay, so it's worth considering how your home's location affects how hard your air conditioner works.
Because winters are mild, many furnaces and heat pumps sit idle for months and then get pushed hard on the first cold nights. Air conditioners face the same thing at the start of a hot spell. That sudden heavy use is often when worn parts show up, so a check before the season changes can catch problems early.
How a Repair Visit Works
We start by asking what you've noticed and when it happens. Then we test the system under normal operation, check electrical components, airflow and safety controls, and look at the equipment's overall condition. You'll get a straightforward explanation of what we found, what we recommend and why, before we do any work.
If a part needs to be ordered, we'll tell you what to expect in the meantime and whether the system is safe to run.
Repair or Replace? Rules Worth Knowing
Bay Area Air District appliance rules do not require you to replace equipment that still works. They apply only when an existing furnace or water heater fails or is replaced. If your furnace can be reasonably repaired, keeping it running is often a sensible choice.
Looking ahead, natural gas furnaces manufactured from 2029 must meet a zero-NOx emission standard, which in practice points homeowners toward heat pumps when a furnace is replaced after that date. Small water heaters fall under a separate rule with a 2027 zero-NOx date, and the Air District Board is considering amendments in November 2026 that could delay it. Check the current rule before planning a water heater replacement.
The federal 25C tax credit covered qualifying heat pumps placed in service before December 31, 2025, and it isn't available for new installations after that date. BayREN and your local clean energy provider may offer heat pump and electrification incentives. Those change by funding cycle, so we confirm the current offer before quoting it.