Maryland summers can be blistering. During those hot summer days and humid nights, air conditioning systems are essential to keeping your home comfortable. When you’re looking for a professional air conditioning installation or replacement, Constellation Home is here to help. We’ve been serving central Maryland for over 25 years.
How Central Air Conditioning Works
An air conditioning system works by extracting hot and humid air from inside your house and distributing cool air through a duct system. Your central air conditioning system is responsible for keeping your family cool and comfortable throughout the hot summer months.
Most central air conditioning units in Maryland are a split system, which is made up of an outdoor air conditioning unit and an indoor furnace. The alternative is a packaged system, in which the heating and cooling functionalities are both housed in the outside unit. To better understand when it might be time to replace your AC system and how to go about finding a new one, view our Heating & Air Conditioning Buying Guide.
Our Approach to AC Installation in Frederick, MD
Constellation Home gives you a stress-free installation experience that starts with expert advice and ends with a reliably cool home. From our first consultation with you to running the final system check, you’re in the hands of a professional and experienced team at every step. Here’s what you can expect when working with Constellation Home for your new air conditioning system:
1. Request a free AC installation estimate
Getting a free, no-obligation estimate for either improving your current system or installing a new one is easy. Our expert consultants will make a thorough assessment of your situation and cooling needs. Then you’ll get a detailed quote tailored to your home.
Request an Estimate
2. Pick the right AC system for your home and budget
Our certified expert technicians will guide you through your options to help you select the right system for your home, needs, and budget. We take precise measurements, inspect your current equipment and suggest the best size of new equipment. You’ll get a balance of energy efficiency and long-term performance to optimize your comfort.
3. Prepare for installation day
Our expert, licensed installation team will work with you to schedule a convenient installation date. You can count on us to show up on time, in uniform and ready to work. We’ll remove your old system and carefully install the new one. Our certified professionals follow all protocols for safety and efficiency, ensuring a high-quality installation and optimal system performance.
4. Enjoy peace of mind and reliable home comfort
We stand behind our work for the life of your system. Your comfort is our priority. When Constellation Home provides and maintains your HVAC system, you can breathe easy. Our team completes every job with one goal in mind: your complete satisfaction. We’re committed to keeping your home comfortable, year after year.
How Much Does an AC Installation Cost?

The cost of an AC replacement in Frederick, MD, depends on your home and cooling needs. We make pricing transparent so that you can make an informed decision and avoid surprise expenses.
Here are the things we consider when determining AC installation costs:
– Type of system: Costs vary among central air, ductless mini-splits, heat pumps and high-efficiency units. The cost of the system and the complexity of the installation differ with each type.
– Size of the unit: The bigger your living space, the more powerful your system needs to be. Cooling power is measured in British Thermal Units (BTUs). The higher the BTU, the higher the cost of the equipment and installation.
– Ductwork required: Installing new ductwork can be expensive, particularly in an older home. Existing ducts may need extensive repairs and upgrades.
– Energy efficiency rating: You spend more up front for systems with a high Seasonal Energy Efficiency Ratio (SEER) rating, but that may pay off during the life of the system through their higher efficiency.
– Installation complexity: If access points are inaccessible, you need multiple zones or you have custom configuration requirements, you’ll likely pay more for parts and labor.
– Permitting and building codes: Each locality sets its permit fee structure and requirements for compliance.
– Add-on features: Smart thermostats, humidity controls, air purification and zoning can improve comfort and efficiency, but these features will add to your upfront costs.