Peninsula Heating is one of the most revered HVAC contractors in San Francisco. The firm is a licensed business that has been “cultivated over two generations” beginning in 1954, and it continues the founder’s high standards of craftsmanship and customer care. The company caters to residential and commercial clients, including property designers, builders, brokers, managers, and owners, and it offers quality installations and repairs of complete air-conditioning systems, heat pumps, ventilators, furnaces, boilers, sauna equipment, on-demand water heaters, whole-building fans, and similar appliances. Peninsula Heating also provides maintenance services, as well as inspection certifications for real estate escrow closings, and it gives objective advice on selecting the most practical solutions to specific climate-control and indoor air quality problems. The shop does not charge for the estimates, and it has a 24/7 emergency crew.