Compare the highest-rated hvac professionals in Los Altos, California. All contractors are licensed, insured, and verified through our rigorous screening process.
A premier HVAC contractor specializing in high-efficiency system installations and comprehensive maintenance plans tailored to Los Altos' Mediterranean climate. They are authorized dealers for Trane and Carrier systems and focus on smart home integration and energy-saving solutions for both historic and modern homes in the area.
A family-owned HVAC company with deep roots in the South Bay Area, known for its exceptional repair services and customer education. They excel in servicing and replacing older furnaces and AC units common in Los Altos homes, and offer robust maintenance plans to prevent breakdowns during peak summer heat.
Specializes in eco-friendly and energy-efficient HVAC solutions, including heat pump installations and solar-ready AC systems. They are a certified BPI (Building Performance Institute) contractor, making them a top choice for Los Altos homeowners seeking green building upgrades, whole-home performance audits, and modern heat pump technology for year-round comfort.
The Los Altos HVAC market is characterized by high demand for reliability and energy efficiency due to the city's affluent, environmentally conscious homeowners and its climate. The area experiences a Mediterranean climate with mild, wet winters and warm, dry summers. This creates a dual demand for efficient heating (primarily during chilly nights and short winters) and robust, quiet air conditioning for summer comfort. Homeowners often invest in high-SEER rated AC units, heat pumps for their year-round efficiency, and sophisticated zoning systems for larger properties. The market is competitive with a focus on quality service, advanced technology, and preventative maintenance plans to protect valuable homes.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Los Altos regulations and climate
Get answers to common questions about hvac services in Los Altos, California.
For a standard single-family home in Los Altos, a full AC replacement typically ranges from $12,000 to $25,000. This wide range accounts for the high-efficiency, environmentally compliant units required by California's strict Title 24 energy codes, the complexity of retrofitting older homes, and the premium for quiet operation models desired in residential neighborhoods. Always get multiple detailed quotes that include removal of the old refrigerant (R-22) per EPA regulations and any necessary electrical upgrades.
The optimal times are during the mild shoulder seasons of early spring (March-April) and early fall (September-October). Scheduling during these periods ensures your system is serviced before the peak summer heat, which can exceed 90°F, and avoids the high-demand rush when HVAC companies are busiest. This timing also provides better availability for technicians and potential off-season promotional pricing from local contractors.
Prioritize contractors who are locally established, fully licensed (California CSLB C-20 license), insured, and familiar with the specific permitting and installation requirements of Los Altos and Santa Clara County. Check for strong reviews on platforms like Nextdoor, ask for references from recent jobs in nearby neighborhoods like Loyola or Old Town, and ensure they perform a detailed Manual J load calculation for your home's specific orientation and insulation.
Absolutely. Modern air-source heat pumps are an increasingly popular and efficient year-round solution for Los Altos's climate. They provide highly efficient cooling during our dry summers and effective heating during our mild winters (where temperatures rarely dip below freezing), often eliminating the need for a separate furnace. This aligns perfectly with local electrification goals and can significantly reduce your carbon footprint and operating costs.