Diamond Air Services | Certified HVAC Repair in Ontario, CA

We directly address these local concerns. For duct leaks, which reduce airflow and efficiency, our technicians perform a thorough inspection and sealing to restore proper performance. For refrigerant leaks in AC systems, we use precise detection tools to locate the source, repair it, and recharge the system to the manufacturer's specifications, ensuring your cooling is effective and energy-efficient.

Our standard air duct cleaning is a detailed process. We use specialized equipment to remove dust, debris, and allergens from your entire duct system. This service includes cleaning the supply and return air ducts, registers, grilles, and other components, followed by an optional sanitization treatment. We also check and replace your air filters to help maintain cleaner air throughout your Ontario home.

Regular maintenance is key to preventing costly breakdowns, improving energy efficiency, and extending the life of your system. Our maintenance service includes inspecting electrical connections, checking refrigerant levels, cleaning coils, and ensuring all components are working correctly. This proactive care helps maintain consistent comfort, improves indoor air quality, and can lower your monthly energy bills.