Ductless mini split systems are the go-to HVAC solution for San Francisco's Victorian and Edwardian homes — no ductwork required, whisper-quiet operation, room-by-room temperature control, and the ability to provide both heating and cooling from a single system. We install single-zone and multi-zone mini splits from Mitsubishi Electric, Daikin, Carrier, and Midea across all SF neighborhoods.
Of the approximately 400,000 housing units in San Francisco, a significant majority were built before 1950 — in an era when central forced-air heating didn't exist and residential cooling was unimaginable. These Victorian flats, Edwardian apartments, Craftsman bungalows, and Spanish Colonial homes were designed around wall heaters, radiators, and natural ventilation. They have no ductwork, and retrofitting conventional ductwork into their plaster walls, balloon framing, and irregular floor plans is prohibitively expensive and architecturally destructive.
Ductless mini split systems solve this problem elegantly. A refrigerant line, a condensate drain, and a communication cable — passing through a hole no wider than 3 inches — connect a sleek wall-mounted indoor air handler to an outdoor condenser unit. The indoor unit heats or cools the room to the precise temperature you set, independently of every other room in the home. A multi-zone system places multiple indoor units in different rooms, each with its own thermostat, all connected to a single outdoor condenser. No ducts. No mold hiding in walls. No pressure imbalances. No heating the kitchen when you're trying to cool the bedroom.
SF HVAC Repair installs mini split systems from Mitsubishi Electric, Daikin, Carrier, and Midea — and we have the city-specific experience to navigate San Francisco's unique installation challenges: HOA approval processes in multi-unit buildings, SFDBI permit requirements, outdoor condenser placement on Victorian facades with minimal setbacks, and equipment sizing calibrated for each neighborhood's microclimate.
A strong option for fog-belt homes, with product lines designed for cold-weather heating and quiet indoor operation.
Strong competitor with excellent SEER ratings and a wide range of sizes for SF's compact rooms.
Trusted residential HVAC equipment with flexible single-zone and multi-zone options for San Francisco homes.
Efficient, practical mini split systems with options for compact rooms and budget-conscious installations.
Victorian and Edwardian homes: Balloon framing, plaster-over-lath walls, and redwood structural members require non-standard drill bits and techniques. Our technicians are trained in Victorian-era construction to make wall penetrations cleanly without damaging decorative plasterwork or heritage woodwork.
Multi-unit buildings: Installing a mini split in a San Francisco condo or TIC unit requires HOA approval, SFDBI permitting, and careful outdoor condenser placement to minimize impact on shared spaces and other residents. We handle HOA documentation, prepare renderings showing condenser placement, and schedule City permit inspections on your behalf.
Microclimate sizing: An Outer Sunset home three blocks from the ocean needs a different system capacity than a Potrero Hill home that sees 15°F more summer sun. We size every system using current San Francisco microclimate data — not generic zip-code averages — to ensure optimal performance and efficiency year-round.
We install ductless mini splits in all 28 SF neighborhoods — from the fog belt to the sun belt.