Air Conditioners & Heat Pumps in San Mateo, CA
Peninsula summers are getting warmer, and more San Mateo County homes are adding cooling for heat waves. We help you size the right window, portable or ductless mini-split system for the room, and many of our heat pump models also heat efficiently through the winter.
Starting from $299
Shop by Type
Window Units
Affordable cooling for bedrooms and home offices. Easy to install and remove seasonally.
Portable ACs
No permanent installation. Ideal for renters and rooms with slider or casement windows.
Ductless Mini-Splits
Quiet, efficient zoned cooling and heating without ductwork, which suits older Peninsula homes.
Heat Pumps
All-electric heating and cooling that may qualify for California and federal incentives.
Brands in Stock
- LG
- Samsung
- Frigidaire
- GE Appliances
- Panasonic
Buying Tips
- Size by square footage: roughly 5,000 BTU for 150 sq ft up to 12,000 BTU for 550 sq ft. Sunny rooms need more.
- Check your window type before buying. Casement and slider windows need specific kits or a portable unit.
- Inverter compressors run quieter and use less electricity, which matters with California time-of-use rates.
Delivery & Installation in San Mateo
We deliver air conditioners from our San Mateo store to San Mateo, Burlingame, Foster City, Belmont, San Carlos, Hillsborough, Millbrae, Redwood City, Half Moon Bay, South San Francisco, Menlo Park and Palo Alto. Our team can install your new appliance, connect it, and haul away the old one.