Certified | Experienced | Family-Owned
Nobody enjoys waking up to a freezing house in the middle of winter or sweating through a sweltering summer night because their HVAC system suddenly decided to quit. When your home feels uncomfortable, you need a dependable HVAC contractor who can step in and fix the problem quickly. At Mercury Home Services, we serve homeowners in Fallston, MD, and the surrounding areas, focusing on making your indoor temperature feel exactly right again.
Mercury Home Services is a family-owned and operated HVAC contractor based in Fallston, MD. Led by a fully licensed, unrestricted master technician with nearly 20 years of trade experience, we specialize in air conditioner repairs and replacements, heating repairs and replacements, mini-split installations, emergency HVAC services, and more.
As of May 2026, we’re proud to have a 4.6-out-of-5-star rating on Google, and we appreciate every homeowner who takes the time to share their experience. See what your neighbors have to say about working with our HVAC contractors.
When your AC blows warm air, barely pushes air through the vents, or starts making strange noises, our air conditioner repairs help track down the problem before it gets worse. We diagnose cooling issues, check refrigerant levels, repair leaks, test thermostats, and repair or replace components such as capacitors, coils, and compressors, so your system can cool your home as it should.
A worn-out AC can make your home feel sticky, uneven, and frustrating, especially during a Maryland summer. With our air conditioner replacement service, we evaluate your home, properly size the new system, remove the old equipment, inspect the ductwork, and install a high-efficiency unit that meets your comfort needs.
Cold rooms, short cycling, strange smells, and no-heat surprises usually mean your system needs a closer look from someone who knows what they’re doing. Our heating repairs cover heat pumps, gas, electric, and oil furnaces, including issues with burners, ignition systems, heat exchangers, thermostats, and airflow.
Older heating systems can lose efficiency, struggle to keep up, or require more frequent repairs than they should. For heating system replacement, we review your current setup, recommend practical options, install energy-efficient equipment, verify airflow, and upgrade controls as needed, so your home feels warm again fast.
Some spaces never seem to heat or cool properly, such as garages, additions, bonus rooms, and older homes without ductwork. Our mini-split installation service provides those areas with zoned comfort using quiet, energy-efficient equipment and a clean installation that doesn’t turn your house into a construction zone.
Heating and cooling problems rarely wait for a convenient time, which is why our emergency HVAC services help when comfort takes a sudden nosedive. We respond to urgent breakdowns, diagnose the issue quickly, and use well-stocked trucks to handle many repairs on the spot.
Regular tune-ups help your system run more smoothly and give us a chance to spot problems before they interrupt your day. During an HVAC preventive maintenance service, we inspect electrical components, clean key components, check the refrigerant, test voltage and power draw, review wiring, verify system operation, and replace worn parts as needed.
Boilers can be great when they work properly, but leaks, pressure issues, and uneven heat can make the whole house feel off. Our boiler services include repairs, maintenance, flushing, radiator and baseboard support, and safety checks to help your system run more reliably.
A heat pump can handle heating and cooling, making it a smart fit for many homes in our area. With our heat pump installation service, we size the system for your home, install energy-efficient equipment, and connect it with your existing ductwork or ductless setup for year-round comfort.
If your heat pump struggles to switch modes, blows the wrong temperature, freezes up, or runs nonstop, something needs attention. Our heat pump repairs cover compressors, reversing valves, sensors, defrost cycle issues, airflow problems, and electrical concerns so the system can get back to pulling double duty.
Boilers can be great when they work properly, but leaks, pressure issues, and uneven heat can make the whole house feel off. Our boiler services include repairs, maintenance, flushing, radiator and baseboard support, and safety checks to help your system run more reliably.
An oil furnace can act up when the burners, ignition components, filters, or fuel-delivery components fail. With our oil furnace repairs, we clean and service the system, address fuel and burner issues, improve efficiency, and help restore steady heat without overcomplicating the process.
Air conditioner problems can sneak up fast, especially when the Maryland humidity shows up, and your AC decides it has other plans. Our team diagnoses warm air, weak airflow, strange noises, refrigerant leaks, thermostat trouble, worn capacitors, coil issues, and compressor problems so your cooling system can get back to doing its job.
When an old AC keeps breaking down or struggles to cool your house evenly, replacement may make more sense than another repair. We evaluate your current system, size the new unit for your home, remove the old equipment, check the ductwork, install a high-efficiency AC system, and test everything before calling the job done.
Heating issues deserve quick attention because a small problem can turn into a cold, uncomfortable house before you know it. We repair heat pumps, gas furnaces, electric furnaces, and oil furnaces by checking burners, heat exchangers, ignition systems, thermostats, airflow, unusual noises, short cycling, and anything else that may be keeping your home from heating safely and reliably.
Choosing an HVAC contractor should feel simple, so we keep things honest, helpful, and easy to understand from the first call.
When your heat or AC calls it quits at the worst possible time, we offer 24/7 response for urgent heating and cooling issues.
As a family-run company with 16+ years of industry experience, we bring local care, hands-on expertise, and an unrestricted master license to every job.
Our complimentary consultations and estimates help you understand your options before making a decision.
To thank those who serve our community, we offer 10% off for active and former military members, senior citizens, nurses, and teachers.
For heating and cooling systems, we partner with trusted names like Airtemp and Bosch.
Every installation includes a two-year labor warranty, and our service work comes with a 30-day call-back warranty.
Yes, most HVAC contractors in Fallston handle both sides of home comfort, including AC repairs, AC replacement, furnace repairs, heat pump service, heating system replacement, and seasonal maintenance. Since Maryland’s weather gives us humid summers and chilly winters, a good HVAC contractor helps keep your home ready for both.
Most Fallston homeowners should schedule HVAC maintenance twice a year: once before the cooling season and once before the heating season. That gives your contractor a chance to clean key parts, check electrical components, look for worn-out pieces, and catch small problems before your system decides to act up on the hottest or coldest day of the year.
An HVAC contractor typically installs, repairs, replaces, and maintains heating, cooling, and ventilation systems for homes in the Fallston area. That can include air conditioners, furnaces, heat pumps, mini-splits, thermostats, ductwork issues, airflow issues, and those mysterious noises your system seems to make only when company is coming over.
Start by checking your thermostat settings, air filter, breaker, and outdoor unit to make sure nothing simple caused the issue. If the AC still blows warm air, runs constantly, makes strange noises, or has weak airflow, call an HVAC contractor before the problem turns into a bigger repair.
You can handle simple tasks such as changing the filter, checking thermostat batteries, and making sure vents stay open, but you should call an HVAC contractor when your system loses heating or cooling, trips breakers, leaks, smells unusual, or makes loud banging, buzzing, or grinding sounds. Heating and cooling equipment uses electrical components, refrigerant, fuel, and moving parts, so a trained pro can track down the issue without turning a small headache into a full-blown “well, that got worse” situation.
FAQs reviewed by Ryan White, founder and owner of Mercury Home Services, a certified and experienced HVAC contractor.
Give us a call to chat about your heating or cooling troubles, and we’ll happily stop by to offer a free consultation.
Business Name: Mercury Home Services
Address: Fallston, MD 21047
Phone: 443-616-1589
Business Hours:
Mon - Fri: 09:00 AM to 05:00 PM
Sat-Sun: Closed
Emergency calls Saturday and Sunday
10% off for active and former military.
10% off for senior citizens.
10% off for nurses.
10% off for teachers.
2-year labor warranty on any installations. 30-day call-back warranty for service work.