HVAC Services in Merced, CA
All Our Services
ZACS Air Systems provides residential and commercial HVAC services throughout Merced, Atwater, Livingston, and surrounding areas. From AC installation and heating repair to mini split systems and ductwork, our certified technicians deliver reliable, high-quality service. Explore our complete list of HVAC and refrigeration services expertly delivered with quality and integrity.
Air Conditioning Services
- A/C System Installation
- A/C System Repair
- A/C System Maintenance
We install efficient, long-lasting AC systems tailored to your home’s size and comfort needs.
Fast and accurate troubleshooting to restore cooling performance and prevent breakdowns.
Seasonal tune-ups that boost system efficiency, reduce energy bills, and extend equipment lifespan.
Mini Split Services
- Mini Split Installation
- Mini Split Repair
- Mini Split Service / Maintenance
Professional installation of high-efficiency ductless mini split systems for precise room-to-room comfort.
Fast diagnostics and expert repairs to restore performance, airflow, and energy efficiency.
Full maintenance service including cleaning, refrigerant checks, and component inspection to extend system life.
Heating Services
- Heating System Installation
- Heating System Repair
- Heating System Maintenance
- Ductless Heating
- Fireplace Insert Installation
Professional furnace and heating setup designed for optimal winter comfort and efficiency.
Reliable repairs to keep your heating system running safely and efficiently.
Routine servicing that improves performance, reduces energy use, and prevents failures.
High-efficiency ductless heating systems ideal for additions, garages, and zone heating.
Clean-burning, efficient fireplace insert installation to improve home comfort and safety.
Ductwork & General HVAC
- HVAC Duct & Vent Installation
- HVAC Duct & Vent Repair
- HVAC System Maintenance
- Repair HVAC
Custom-designed ductwork for improved airflow, comfort, and energy efficiency.
Leak repairs and airflow balancing to restore proper system performance.
Comprehensive checkups that extend system life and reduce operating costs.
General HVAC diagnostics and repairs for all brands and system types.
Thermostat Services
- Install Thermostat
- Thermostat Repair
Professional installation of smart and traditional thermostats to improve comfort control.
Fixing thermostat issues to restore accurate temperature regulation.
Heat Pump Services
- Heat Pump Installation
- Heat Pump Repair
- Heat Pump Maintenance
Energy-efficient heating and cooling solutions installed for year-round comfort.
Expert diagnostics and repairs to restore reliable heat pump performance.
Routine tune-ups to maintain efficiency and extend system lifespan.
Whole House Fan & Ventilation
- Quiet Cool Whole House Fan Installation
Installation of Quiet Cool systems for powerful, energy-saving home ventilation.
Water Heater Services
- Tankless Water Heater Installation
Endless hot water with efficient tankless systems installed professionally.
New Construction & Custom Home HVAC
- Full HVAC System Design
- New Construction HVAC Installation
- Custom Home HVAC Solutions
Custom HVAC planning for new builds to ensure optimal airflow and energy savings.
Complete HVAC installation for new homes built to current energy standards.
Tailored designs for luxury homes, unique layouts, and specialty comfort needs.
Commercial Refrigeration
- Ice Machine Service
- Refrigeration Repair & Maintenance
- Walk-in Cooler / Freezer Service
Professional cleaning, descaling, and repairs to keep ice machines sanitary and reliable.
Service for commercial fridges, freezers, and coolers to prevent product loss and downtime.
Maintenance and repairs to ensure stable temperatures in walk-in units.