Since 1979, ACS, Inc. has been North Alabama’s trusted choice for heating, cooling, electrical, and indoor air quality solutions. We provide expert installation, repair, and maintenance services for homes and businesses in Huntsville, Madison, and surrounding areas — delivering comfort, efficiency, and reliability year-round.
Fast, Reliable Fixes for Any System
When your HVAC system breaks down, ACS delivers quick and dependable repair services in Huntsville and Madison. We service all makes and models, providing honest recommendations on whether to repair or replace so your comfort is restored without delay.
Prevent Breakdowns and Save Money
Our preventative maintenance programs keep your heating and cooling systems running efficiently year-round. Routine service reduces downtime, extends equipment life, and helps lower energy bills — giving you peace of mind and long-term savings.
High-Efficiency Systems Built to Last
Upgrade your comfort with expert installation from ACS. We install leading brands like Amana, GREE Flexx, and Daikin mini-splits, offering rebates, tax credits, and strong warranties to maximize performance and protect your investment.
Solutions for Homes and Businesses Alike
From single-family homes to light commercial properties, ACS delivers customized heating, cooling, and electrical solutions. Our experienced technicians ensure reliable, energy-efficient results tailored to your unique space and budget.
Cleaner Air for a Healthier Home
ACS provides professional duct cleaning, air balancing, and air quality upgrades with advanced filters and UV lights. Reduce dust, dander, and allergens in your home while improving airflow and comfort for your family.
Stay Warm All Winter Long
From furnaces and heat pumps to gas piping, space heaters, and water heaters, ACS covers all your heating needs. Our certified team ensures your home stays safe, efficient, and comfortable through every North Alabama winter.
Lifetime Unit Replacement Warranties On Certain 16+ SEER Equipment
Choose qualifying 16+ SEER high-efficiency equipment and enjoy ACS lifetime replacement warranties. This exclusive coverage guarantees long-term reliability while helping you save on utility costs every month.
