E-fficient HVAC & Refrigeration handles every part of home comfort — from brand-new installations to same-day repairs. Every job starts with an honest, free estimate. Call us at (510) 550-5531 or request service online.
HVAC Installation & Replacement
Replacing an aging system or installing HVAC in new construction, we size and install complete systems correctly the first time — including permits and proper ductwork.
AC & Furnace Split Systems
Matched air conditioner and furnace split systems sized for your home’s square footage and layout, for even, efficient heating and cooling.
Heat Pumps & Mini-Splits
Energy-efficient heat pump and ductless mini-split systems for whole-home comfort or room-by-room zoned control — a great fit for homes without existing ductwork.
Ductwork
Repair, replacement, and correction of improperly installed or leaking ducts — poor ductwork is one of the most common causes of uneven heating and cooling.
Gas & Electric Furnaces
Installation, repair, and maintenance for both gas and electric furnaces, with honest guidance on repair versus replacement.
HVAC Maintenance & Repair
Routine maintenance and fast repairs keep your system running efficiently and help avoid costly breakdowns during extreme weather.
Water Heater Installation & Repair
Installation and repair of standard and high-efficiency heat pump water heaters, including utility rebate guidance where available.