Cotherman Air Conditioning & Construction | Professional HVAC Services in New Windsor, MD

312 Main St, New Windsor, MD 21776

(410) 635-2810

Business Profile

Cotherman Air Conditioning & Construction is your trusted local HVAC partner in New Windsor, MD. We specialize in addressing Carroll County's specific climate challenges, including refrigerant leaks and the high humidity that can strain your system and reduce efficiency. Our expert team provides comprehensive diagnostics, precise repairs, and proactive maintenance to seal leaks and restore optimal cooling power. We also offer solutions like whole-house dehumidifiers and system optimizations to combat muggy air, ensuring your home stays comfortable and your energy bills stay manageable. As a family-owned business, we're committed to reliable, long-lasting service for our New Windsor neighbors.

Q&A

What should I do if I suspect a refrigerant leak in my New Windsor home?

If you notice weak airflow, ice on the coils, or a hissing sound, turn off your system and call us immediately. Refrigerant leaks reduce cooling power, increase wear on the compressor, and can be harmful. Our technicians use specialized tools to locate and seal the leak, then recharge your system with the precise amount of refrigerant specified by the manufacturer, ensuring safe and efficient operation for our humid Maryland climate.

How can I reduce high indoor humidity with my existing HVAC system?

Start by ensuring your system is properly sized and maintained; an overworked or dirty system can't remove moisture effectively. We recommend scheduling a seasonal tune-up where we clean coils, check refrigerant levels, and calibrate your thermostat. For persistent humidity in basements or older homes, we often suggest adding a whole-house dehumidifier that integrates with your HVAC, providing targeted moisture control without overcooling your New Windsor home.

Why is my AC running constantly but not cooling well on humid days?

This is a classic sign of an HVAC system struggling with our local humidity. The unit may be working overtime to remove moisture from the air before it can lower the temperature, often due to low refrigerant, a dirty evaporator coil, or an undersized system. Our diagnostic service checks for these issues. Often, sealing ductwork, cleaning the system, and ensuring proper refrigerant charge can restore efficiency and comfort.

What the Company Handles

  • HVAC installation or replacement
  • HVAC system repair

Business Location & Hours



Mon:Open 24 hours
Tue:Open 24 hours
Wed:Open 24 hours
Thu:Open 24 hours
Fri:Open 24 hours
Sat:Open 24 hours
Sun:Open 24 hours


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