HVAC Installation & Repairs in San Mateo County, California

Equipment, labor, and your home’s specifics — nothing else. The system type, square footage, and ductwork condition drive the total; many Santa Clara homes from the 1950s–60s ranch era still run original ducts that need sealing or replacing, and we flag that at the free assessment, not on installation day. Every quote is itemized with no hidden fees. Call (408) 733-2000 to schedule your assessment.

Very likely — most installations are scheduled within days of an approved quote, and the work itself takes 4–8 hours for a central AC replacement or 3–6 hours per zone for a mini split. Projects with new air conditioning ductwork run 2–3 days. Homes with a completely failed system get priority scheduling, so mention it when you call.

Single-story ranch layouts work well with either. If the ducts are healthy, modern central AC at 15–18 SEER2 (California’s current minimum for most new installations is 15.2 SEER2) cools the whole footprint evenly. If ducts are aging or absent — common after garage conversions and additions — ductless mini splits at 20–27 SEER2 skip the 20–30% duct losses entirely and zone each area independently. Call (408) 733-2000 and we’ll assess which route saves you more.

Yes — HVAC replacements require a permit in Santa Clara, as everywhere in California. We assist you with the permit paperwork and walk you through the documentation steps, and every system we install is built to California Title 24 energy codes and local requirements, so inspections pass without drama. Documented work protects your warranty and your future resale.

Call (408) 733-2000 — Santa Clara is minutes from our base, and same-day repair visits are usually available, especially for morning callers. Our trucks stock the parts behind most failures (capacitors, contactors, igniters, thermostats), so odds are good the fix happens on the first visit, the same day.

It stretches the payback timeline slightly — Santa Clara’s municipal utility rates are lower than PG&E’s — but the fundamentals hold: a system past 10–15 years with repeat breakdowns, or facing a repair over 50% of a new unit’s cost, is still worth replacing. Efficiency gains, California rebates, and fewer emergency calls do the rest. Call (408) 733-2000 and we’ll run your specific numbers during the diagnostic, honestly.

Book a spring tune-up before the first hot stretch — technicians check refrigerant, capacitors, and airflow while calendars are still open. Pair it with a fall heating check, swap the air filter every 1–3 months, and keep the outdoor condenser clear of leaves and dust. Skipped spring tune-ups are the top cause of preventable July breakdowns we see across Santa Clara.

Two layers: the manufacturer’s equipment warranty plus our own workmanship warranty. Air & Plumbing Systems is a fully licensed and insured California HVAC contractor (License #901246) with over 25 years of experience. Our certified technicians handle air conditioner installation, ductwork, repairs, and maintenance — serving Santa Clara, San Jose, Sunnyvale, and the surrounding Bay Area.