Tom Durbin AC & Mechanical - Sunnyvale's Experienced HVAC Repair

Yes, that's a classic sign of a refrigerant leak, a common issue in our area that reduces cooling capacity. When refrigerant levels are low, your system works harder, driving up energy bills while struggling to cool your home. Tom Durbin AC & Mechanical can perform a precise leak detection test, repair the leak, and recharge your system to its factory specifications, restoring efficient cooling and protecting your compressor from damage.

Short cycling is a frequent problem here, often caused by an oversized unit, a dirty air filter, low refrigerant, or a malfunctioning thermostat. This constant stopping and starting puts severe stress on components, increases wear and tear, and fails to dehumidify your home properly. Our technicians will diagnose the root cause—whether it's a repairable issue like a faulty sensor or if a system replacement is the most cost-effective long-term solution for your home.

For a refrigerant leak, the decision depends on the leak's location, the age of your system, and its efficiency. A single, accessible leak in a relatively new, high-efficiency system is often worth repairing. However, if your system is over 10-15 years old, has R-22 refrigerant (which is no longer produced), or has multiple leaks, a replacement is likely more economical. We provide honest assessments, outlining the repair costs versus the long-term energy savings and reliability of a new, properly sized HVAC installation for your Sunnyvale home.