Air Conditioning & Heating Services in Havre de Grace, MD

Maryland summers can be hot, humid, and uncomfortable—unless you have a reliable air conditioning system. At G Cullum Heating and Air, we offer full-service air conditioning solutions to keep your home cool and energy-efficient:

• Air Conditioner Installation & Replacement: We install high-efficiency AC systems designed to fit your home’s needs and help lower your energy bills. If your old unit is failing or costing too much to run, we’ll help you choose the right replacement.
• AC Repair Services: Weak airflow, strange noises, uneven cooling, or warm air coming from your vents are all signs your AC needs attention. Our technicians quickly diagnose issues and provide effective, long-lasting repairs.
• Preventive AC Maintenance: Regular tune-ups reduce the risk of breakdowns, improve efficiency, and extend the lifespan of your system—helping you avoid expensive repairs and stay comfortable all summer long.

We service all major brands and models and take pride in offering honest recommendations and fair pricing.

Winter weather in Havre de Grace requires a dependable heating system. G Cullum Heating and Air provides expert heating services to keep you warm and protected during Maryland’s coldest months:

Winter weather in Havre de Grace requires a dependable heating system. G Cullum Heating and Air provides expert heating services to keep you warm and protected during Maryland’s coldest months:

Clean, healthy air is essential for your comfort and well-being. G Cullum Heating and Air offers advanced indoor air quality services to help reduce allergens, airborne particles, and humidity problems, ensuring a fresher and healthier indoor environment. Our services include:

• Whole-home air purification systems
• High-quality air filters
• Humidifiers and dehumidifiers
• Duct cleaning and sealing solutions

If you suffer from allergies, asthma, or recurring dust buildup, our indoor air quality enhancements can make a big difference.

Residents of Havre de Grace, MD continue to trust our team because we offer:

Our mission is simple: to deliver dependable comfort solutions with exceptional customer care. From emergency repairs to complete system installations, we’re your trusted HVAC partner in Harford County.