Sandium Heating and Air Conditioning

When San Jose evenings turn chilly, you need a heating system you can depend on. Sandium provides comprehensive heating services tailored to our region's mild but distinct winters. We specialize in installing high-efficiency gas furnaces, advanced electric heat pumps, and hybrid systems that automatically switch between fuel sources for maximum savings. Our process begins with a thorough assessment of your home's heat loss, existing ductwork, and your family's comfort patterns.For homeowners con...

San Jose summers demand a cooling system that can handle dry heat and maintain consistent comfort. Sandium's cooling solutions are engineered for the specific challenges of our local climate. We install high-SEER central air conditioners, ductless mini-split systems for homes without existing ductwork, and provide comprehensive maintenance to keep your system running at peak efficiency.Our service approach is proactive. A seasonal AC tune-up includes cleaning coils, checking refrigerant levels,...

The air inside your San Jose home directly impacts your family's health and comfort, especially with seasonal pollen, dust, and wildfire smoke. Sandium offers a full suite of indoor air quality (IAQ) solutions designed to create a cleaner, healthier living environment. We start with testing to identify pollutants, humidity imbalances, and ventilation issues specific to your home.Our services include installing whole-home air purification systems with HEPA or advanced media filters, UV-C light sy...

Sandium Heating and Air Conditioning handles the full range of heating and cooling work for San Jose homes, from the first load calculation through final performance testing. Every system we recommend starts with an assessment of your home's layout, insulation, and ductwork, so the equipment we size fits the house instead of a generic template. We install and service both heating and cooling equipment, including gas furnaces, heat pumps, central air conditioners, and hybrid setups that switch fu...

When your air conditioner stops cooling or starts making odd noises, we start by finding the root cause rather than swapping parts until something works. Our technicians check refrigerant levels, electrical components, coils, and airflow, then explain what failed and what it will take to fix it properly. We use quality replacement parts backed by manufacturer warranties. If uneven cooling is the real problem, we can also look at ductwork and zoning, since a system can be working correctly and st...

A new furnace should be sized to your home's actual heat loss, and that is where we begin every installation in San Jose. We measure insulation, air leakage, and existing ductwork before recommending a model, then handle equipment sizing, installation, smart thermostat setup, and commissioning. We install high-efficiency gas furnaces and can advise you on ENERGY STAR models and any rebates or financing that may apply. Once the unit is running, we test its performance so you know it is heating th...

A heat pump can heat and cool your home with one system, which makes it a practical choice for many San Jose households moving toward all-electric comfort. We design the installation around your home's heat loss, ductwork, and how your family uses each room, so the unit runs efficiently through both mild winters and warm summers. Our certified technicians can explain the ENERGY STAR options, current rebates, and financing, and they handle sizing, electrical connections, thermostat integration, a...

A broken air conditioner on a hot San Jose afternoon can quickly make a home unsafe, especially for children, older adults, or anyone with health concerns. We respond to urgent cooling problems and focus first on getting your system running again safely. Our technicians diagnose the fault accurately, explain what needs to be repaired, and use dependable parts so the fix holds up. Once the emergency is handled, we can check the rest of the system to help prevent another breakdown during the hotte...

Ductless mini splits are a good option for homes without existing ductwork, additions, or rooms that never seem to get comfortable. We install these systems with one or more indoor units connected to an outdoor unit, placing each indoor head where it will heat and cool its zone most evenly. Before installation we calculate the cooling and heating capacity each zone needs, which keeps the system from being undersized or oversized. Our technicians handle the line set, electrical work, and final te...

Dust, pollen, humidity, and smoke can all affect how your home feels and how easily your family breathes. Our indoor air quality testing starts with a look at the specific pollutants, moisture levels, and ventilation in your home so we know what is actually there. Based on the results, we can recommend solutions such as HEPA or media filtration, UV-C treatment, humidity control, or duct sealing. We also check how your HVAC system and ductwork affect air quality, and we explain the findings in pl...

Ducts that carry dust, debris, and allergens through the house can make your system work harder and your indoor air less pleasant. Our duct cleaning service clears out buildup from supply and return ducts, and we inspect for leaks that waste energy and pull unfiltered air into the home. We can also seal and repair ductwork as needed, which often improves airflow to the rooms that feel stuffy or cold. If your ducts are in good shape, we will say so, and if they need work, we will explain exactly...