Making people comfortable, one home at a time, since 2001.
Sandium is passionate about creating the perfect indoor climate for your home. We do this using the latest evidence-based strategies and technologies.
As a leading HVAC company in San Jose, we are dedicated to creating comfortable living spaces that you can truly call home. With a history spanning over two decades, we prioritize the client experience above all else, building lasting relationships that define the success of our business.
Our team stays at the forefront of technological advancements and adopts evidence-based strategies to optimize your indoor comfort. We love what we do, the clients we work with, and the team we work alongside!
Over 20 years of experience
Founded in 2001, Sandium began as an installer of heating and air conditioning systems. Prior to that, we collaborated with a major manufacturing company, TRANE, contributing to the development of cutting-edge building analysis tools, comfort system controls, and commercial building performance contracting.
As a full-service HVAC company, we offer design, engineering, and installation services for heating & air conditioning systems, zone systems, high-efficiency water heaters, Home Performance contracting, energy auditing, and ventilation/air filtration services.
Sandium proudly holds multiple licenses, including C-20 (Warm-Air Heating, Ventilating and Air-Conditioning), C-2 (Insulation and Acoustical), and B (General Building Contractor).
Our Commitment to Excellence
Our bonded and insured team takes the time to listen to your specific needs, gathering essential data to provide custom solutions with holistic home energy, air quality, and comfort in mind – no cookie-cutter solutions here.
Community and Industry Recognition
Proud members of Build it Green, Home Performance with Energy Star, Efficiency First, CBPCA, and ACCA, we are committed to making a positive impact. Our reputation is earned through recognition from Yelp, Angie’s List, Google, Service Magic, and the Better Business Bureau (BBB), demonstrating our clients’ appreciation for our services.
Don't Just Take our Word for it
Our satisfied customers are our biggest advocates. Don’t just take our word for it – hear what they
have to say about their experience with Sandium.
Our satisfied customers are our biggest advocates. Don’t just take our word for it – hear what they have to say about their experience with Sandium.
Join the Future of Home Comfort
Take the first step towards comfortable, energy-efficient, and stress-free living by scheduling a consultation with Sandium.
