A heat pump that blows the wrong temperature, runs nonstop, freezes up, or leaves rooms uneven can make your home feel off in every season. Mercury Home Services provides heat pump repairs in Fallston, MD, and the surrounding areas for homeowners dealing with heating and cooling inconsistencies, airflow issues, electrical problems, defrost cycle problems, and systems that need a trained eye before things get worse.
Mercury Home Services is a family-owned HVAC contractor based in Fallston, MD, providing local homeowners with heating and cooling repair services. Our team specializes in heat pump troubleshooting, system diagnostics, reversing valve repairs, compressor issues, sensor problems, defrost cycle issues, electrical checks, airflow improvements, and general heat pump repairs to restore steady comfort.

Our heat pump repair service team helps identify the cause of the problem, explains the issue clearly, and gets your system back to properly heating and cooling your home.

Poor airflow can make a heat pump run longer while your home still feels too hot or too cold. Our team checks filters, vents, blower components, ductwork, and other issues that may prevent air from moving as it should.
The compressor does a big job inside a heat pump, so trouble with this part can affect both heating and cooling. During a repair visit, our technicians inspect system performance, electrical connections, and related components before recommending the right fix.
A heat pump can accumulate frost in cold weather, but the defrost cycle should clear it before ice becomes a real problem. Our crew checks defrost controls, sensors, outdoor coil conditions, and related parts when the system stays frozen or struggles to heat.
Heat pumps rely on safe, steady electrical operation to run correctly. Our team tests wiring, connections, capacitors, controls, and voltage to identify issues that may cause short cycling, poor performance, or system shutdowns.
The reversing valve helps a heat pump switch between heating and cooling modes. When that part sticks or fails, the system may blow the wrong temperature, and our technicians can inspect the valve and related components to track down the issue.
Sensors and thermostats help tell the heat pump when to start, stop, heat, or cool. A bad reading can throw the whole system off, so our team checks calibration, settings, wiring, and sensor operation to help restore normal comfort.
A struggling AC can turn a comfortable home into a sticky mess before the day even gets going. Our air conditioner repairs help resolve warm air, low refrigerant, poor airflow, thermostat issues, noisy operation, failing capacitors, coil problems, compressor problems, and other cooling headaches.
Sometimes an air conditioner reaches the point where it works harder, cools less, and causes more frustration than comfort. With our air conditioner replacement service, we assess your current setup, help choose the right system for the home, remove old equipment, inspect ductwork, install the new unit, and test it before we leave.
A heating system that struggles to keep up can make even a mild cold snap feel rough indoors. Our heating repairs include troubleshooting and repair of heat pumps, gas, electric, and oil furnaces, including ignition problems, burner issues, airflow issues, thermostat errors, cycling issues, and worn parts.
Heating equipment gets tired over time, especially after years of Maryland winters. For heating system replacement, we review the existing system, discuss practical options, install efficient new equipment, verify airflow, and set up the thermostat and controls to ensure the home heats evenly.
Spaces like garages, additions, workshops, and bonus rooms often need their own comfort solution. Our mini-split installation service provides quiet ductless heating and cooling, room-by-room temperature control, and a clean setup that keeps the project simple.
A broken HVAC system can make your house uncomfortable in a hurry, especially during peak summer or winter weather. Through our emergency HVAC services, we respond to urgent heating and cooling issues, inspect the system, identify the problem, and work toward a repair to get things back on track.
Regular maintenance gives your system a better shot at running smoothly when the weather leans on hard. During HVAC preventive maintenance, we clean key parts, inspect wiring, check refrigerant levels, test electrical components, verify voltage, review operation, and look for worn pieces before they cause bigger problems.
Leaks, pressure changes, and uneven heat can make a boiler system feel unpredictable. Our boiler services focus on existing boiler repair and maintenance, including flushing, radiator support, baseboard heating support, safety checks, and system efficiency improvements.
Heat pumps can help homeowners handle heating and cooling with a single, practical system. With our heat pump installation service, we match the unit to the home, install the equipment, connect ducted or ductless components, and test heating and cooling performance.
Oil heat can provide reliable warmth for homes that need steady heating in chilly Maryland weather. Our oil furnace installation service includes system sizing, equipment setup, fuel line connections, tank setup, safety checks, and code-compliant installation.
A slow-starting oil furnace, a clogged filter, a dirty burner, or a fuel delivery issue can leave your home colder than it should be. For oil furnace repairs, we inspect the system, clean key components, service the burners and filters, verify fuel flow, and help restore safe, reliable heat.
Bringing a trusted local crew into your house makes solving sudden heat pump issues incredibly smooth.
Late-night breakdowns get our immediate focus because we stay ready 24/7 to handle your sudden temperature emergencies.
Treating your property with the utmost respect is the standard at our family-run shop, guided by an owner with 16+ years of hands-on expertise and a master license.
Complimentary consultations and estimates give you a clear place to start before moving forward with our heat pump repair service
Active and former military members, senior citizens, nurses, and teachers can take 10% off eligible work.
As partners with Airtemp and Bosch, we can help homeowners with dependable heating and cooling system options when equipment needs change.
Installation labor comes with two years of coverage, and service work includes 30-day call-back support.
A heat pump may need repair if it blows the wrong temperature, freezes up, runs nonstop, makes odd noises, or fails to switch between heating and cooling. A licensed HVAC contractor can check airflow, electrical components, sensors, compressors, reversing valves, and defrost controls to find the issue.
A frozen heat pump can become urgent when the system stops heating during very cold weather, or ice keeps building up after the defrost cycle should have cleared it. You should avoid chipping ice off the unit and call for heat pump repair before the problem causes damage to major components.
Common heat pump issues include dirty coils, airflow restrictions, faulty sensors, reversing valve issues, and electrical failures. Maryland's changing weather can make heat pumps work hard during the heating and cooling seasons, so small issues can show up fast.
Professional heat pump repair often includes a full system inspection, airflow check, electrical testing, thermostat review, refrigerant evaluation, and troubleshooting of components such as compressors, sensors, reversing valves, and defrost controls. A good HVAC contractor explains what failed and what repair will help the system work properly again.
Call a licensed HVAC contractor for heat pump repairs in Fallston, MD. Heat pumps handle heating and cooling, so a trained technician should diagnose the system rather than treating it as a basic AC or furnace problem.