Brennan & Associates | Licensed HVAC Repair in Cleveland, OH

Since 1977, we've built our reputation on comprehensive preventative maintenance programs and high-quality design-build installation services. Unlike many companies, we offer computerized maintenance tracking for HVAC systems and provide both commercial and residential services with a dedicated professional workforce focused on service excellence. Our long-standing local presence means we understand Cleveland's specific climate challenges and building needs.

For thermostat malfunctions common in Cleveland's temperature swings, our technicians perform thorough diagnostics to identify whether it's a wiring issue, battery problem, or calibration need. For clogged condensate drain lines—frequent in our humid summers—we use specialized tools to clear blockages and can install safety switches to prevent water damage. We also provide maintenance plans that include regular drain line cleaning to prevent these issues before they occur.

We provide American Standard's AccuClean air filtration system, which removes 99.98% of particles and allergens from your home's air—particularly helpful during Cleveland's allergy seasons. This system is 100 times more effective than standard filters at capturing microscopic irritants like pollen, dust, pet dander, and mildew. We also offer Energy Star certified units that improve efficiency while maintaining better indoor air quality throughout our variable climate.