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Your Trusted HVAC Partner in Redwood City, CA
Harrison's HVAC has been serving the San Francisco Bay Area since the late 1980s, delivering expert heating and air conditioning solutions. Our founder, Harrison S. Smith, brings decades of hands-on experience and a deep understanding of residential construction to every project. We specialize in system design, energy efficiency evaluation, and installation of cutting-edge HVAC technologies tailored to California homes. With four state-issued contractor licenses, we combine technical expertise with personalized service, ensuring every client receives customized solutions. Our commitment to sustainable building practices and alternative energy integration sets us apart in the industry. Backed by over 30 years of local service, we maintain direct involvement in every job, from initial calculations to final installation.

Our teams meticulous attention to detail and dedication to client education have earned us a reputation for reliability and excellence. Serving communities like Palo Alto, Menlo Park, and Redwood City, we prioritize long-term customer satisfaction over short-term transactions. Our extensive background in construction and design allows us to seamlessly integrate systems into new and existing homes. With a focus on integrity and transparency, weve built lasting relationships with homeowners and builders alike, ensuring comfort and efficiency for generations.
Services
Forced Air Heating Air Conditioning System Design Energy Efficiency Evaluation HVAC Repair Ductless Systems Heat Pump Installation Furnace Replacement Thermostat Services Custom Venting
Highlights and features
  • We offer over 30 years of HVAC expertise in the San Francisco Bay Area.
  • Our owner personally oversees every project from design to installation.
  • Holding four state-issued contractor licenses for comprehensive service capabilities.
  • Specializing in energy-efficient HVAC solutions to reduce long-term costs.
  • Committed to sustainable building practices and alternative energy integration.
Associations and certifications
  • California State Contractors License 589936
What people say
Professional, meticulous and fair Top-notch work Knowledgeable Great job Excellent service
Services
Forced Air Heating
We install and repair forced air heating systems using furnaces or fan-coils. Our systems distribute heated air through ductwork, offering flexibility with gas, hot water, or heat pump options. Ideal for California homes, these systems ensure even temperature control and energy efficiency when properly designed.
Air Conditioning
Our air conditioning solutions include ducted and ductless systems tailored to your home. Ducted systems integrate with heating, while ductless units provide zoned cooling. We specialize in heat pump technology that reverses cycles for heating and cooling, maximizing energy efficiency in Bay Area climates.
System Design
We design custom HVAC systems based on precise heat loss/gain calculations. Our process evaluates your home's structure to determine optimal equipment sizing and ductwork layout. This ensures maximum comfort and efficiency while minimizing energy waste through targeted room-by-room climate control.
Energy Efficiency Evaluation
Our evaluations identify energy waste in existing HVAC systems. Using thermal imaging and airflow testing, we assess insulation, duct leakage, and equipment performance. Recommendations include cost-effective upgrades like programmable thermostats, duct sealing, or high-efficiency units to reduce utility bills.
HVAC Repair
We provide comprehensive repair services for all HVAC components, including furnaces, heat pumps, and thermostats. Our technicians diagnose issues through pressure testing and electrical diagnostics. Regular maintenance plans extend system lifespan while ensuring safe, efficient operation year-round.
People
Harrison S. Smith
Owner
Harrison S. Smith, a Redwood City native, founded the company in the late 1980s. With decades of construction and HVAC experience, he personally oversees every project. His technical expertise and commitment to client satisfaction have established the company as a trusted local leader in heating and cooling solutions.
Questions
What HVAC services do you offer?
We provide heating, air conditioning, system design, energy efficiency evaluations, and repairs. Our expertise includes forced air systems, ductless solutions, heat pumps, and custom venting for residential properties.
Which areas do you serve?
We serve the San Francisco Bay Area, including Palo Alto, Menlo Park, Redwood City, San Carlos, Atherton, and Los Altos Hills. Our service area covers both new installations and repair work.
What makes your company different?
Our owner personally manages every project, and we hold four contractor licenses. With 30+ years of local experience, we combine technical expertise with sustainable practices and personalized service for every client.
Do you offer emergency HVAC services?
We prioritize scheduled appointments but accommodate urgent repair requests during regular business hours. For after-hours emergencies, we recommend contacting a 24/7 service provider.