From a capacitor swap to a full heat pump conversion, Potomac HVAC keeps local homes and businesses comfortable with prompt, professional heating and cooling service.
A house with no cooling in summer or no heat in winter can't be put on hold, so we don't. We send experienced technicians out for same-day visits and repairs built around how these systems actually fail in our local homes.
Two systems do most of the work in a typical home, and they're the two we repair most. Here's what to expect when you call.
Most air conditioner breakdowns trace back to one failed part: a weak capacitor, a burned contactor, a seized fan motor, or a slow refrigerant leak. We diagnose it with gauges and meters, not guesswork. Every repair comes with an upfront quote and an honest opinion on repair versus replacement.
A furnace that won't light on a cold night can't wait until morning. Most no-heat calls come down to a dirty flame sensor, a failed igniter, or a blower motor, and our trucks carry the common parts to fix them on the spot. Every visit includes a safety check of the burners and venting, and you'll know the price before we start.
Whatever your system needs, a quick fix, a smart upgrade, or a full replacement, our team covers it start to finish with workmanship that lasts.
Dust, odors, and weak airflow traced back to the ductwork and fixed.
Heat pumps sized for your climate, with backup heat set up correctly.
Spring and fall maintenance that keeps efficiency up and breakdowns down.
No heat tonight? We find the failed part and get the furnace running.
New air conditioners sized by load calculation and commissioned properly.
Heating and cooling repairs on every major brand, most finished in one visit.
New HVAC systems, sized, sealed, and commissioned the right way.
Heating systems of every type repaired and tested before we leave.
Warm air, frozen coils, or a unit that won't start, diagnosed and fixed right.
New furnaces installed with proper venting, gas work, and a full startup test.
Quiet, efficient ductless systems with clean line-set installs.
System replacements with proper sizing and a full commissioning test.
HVAC trouble can appear without warning. If you're facing any of these problems, call us today for fast, professional help.
A system pushing warm air in summer is the call we run most. Our trucks carry capacitors, contactors, and motors to restore cooling same-day.
AC repairFrequent on-off cycling is the furnace protecting itself from a real problem. Ignoring it risks the heat exchanger, the most expensive part in the cabinet.
Furnace repairThat slow decline in performance isn't age, it's neglect compounding. A proper clean-and-tune brings most systems back to spec in one visit.
Maintenance & tune-upsA system past 12 to 15 years that needs a repair every season is telling you something. We'll give you the honest math on repair versus replacement.
System replacementA musty smell at startup often means moisture in the ducts or a dirty evaporator coil, worth addressing before it becomes a bigger air-quality problem.
Air duct cleaningWe size and mount mini-splits cleanly, proper line sets, condensate handling, and a tidy exterior finish, so they work as good as they look.
Mini-split installationA house at 90 degrees is an every-hour problem, so we treat it like one. Same-day appointments across Potomac, with evenings and weekends available.
Every technician has years of hands-on HVAC experience across air conditioners, furnaces, heat pumps, and ductless systems, and trains continually on new models and refrigerants. Your home gets a specialist, not a generalist with a parts catalog.
We treat your budget like our own: fix what's fixable, replace what isn't, and size every new system to your home instead of the biggest thing on the truck.
Installations get the full treatment, real load calculation, correct line sets, sealed and balanced ductwork connections, and a complete commissioning test before we leave.
Potomac HVAC has been keeping homes comfortable in this community and the surrounding MD towns for over a decade. We understand the local climate and the wear it causes because this is our home, not just our service area.
Anyone can bolt in a condenser. Lasting comfort comes from understanding the home and the system together, and that's where our years working in this area pay off, fewer callbacks, faster fixes, and installs that pass inspection without drama.
Talk to someone who actually knows heating and cooling. Honest, no-pressure pricing over the phone.
Every job runs through the same proven steps, so nothing gets missed and the fix actually lasts.
Ring (240) 896-8303 whenever it suits you. We'll talk through the symptoms, tell you if anything needs immediate attention, and lock in a visit time that fits your schedule.
Our technician tests the system, capacitors, motors, refrigerant charge, ignition, airflow, safeties, pinpoints the actual fault, and presents your options with clear, upfront pricing.
Whether it's a ten-minute capacitor swap or a full system changeout, the work is done carefully, tested thoroughly, and left cleaner than we found it.
Before we leave, the system is tested end to end and your questions are answered. Seasonal tune-up plans are available to protect the investment.
Upfront pricing · Same-day service available
A house with no AC in a heat wave isn't something to wait out. Here's what our team does the moment you call to restore your comfort fast.
The first call is where it all starts. Someone on our team picks up, works out how urgent the situation is, and schedules the soonest visit available, while telling you the few simple things to do in the meantime.
Often within hours, our fully equipped technician is at your door with the parts and tools required to handle the problem in your property.
This is where the problem actually gets solved. We repair what's repairable immediately, and when replacement is the honest answer, we handle removal, disposal, and a code-compliant install without drama.
We verify the fix held and stand behind the work. For older systems we set up seasonal tune-ups to catch the next problem while it's still small, which matters most for equipment working through hard seasons.
"When our old furnace was on its last legs, they walked us through converting to a heat pump instead of just quoting a like-for-like swap. The first winter's bills were noticeably lower, and we got cooling out of the same equipment. Best decision we made on this house."
"Our AC died on the hottest day of the year and a tech was out the same afternoon. He found a blown capacitor, swapped it from stock on the truck, and had cold air blowing in under an hour. Fair price, no drama, and he checked the rest of the system while he was there."
"We put a ductless mini-split in the bonus room over the garage that no vent had ever reached. They measured and calculated instead of eyeballing it, and the install was clean and quick. That room is finally usable year-round."
We treat your home the way we'd treat our own: thoroughly, honestly, and with an eye on the long term. Here's the standard you can count on from us every time.
Hands-on experience is the gold standard for HVAC work. Every technician on our team is a seasoned pro across air conditioners, furnaces, heat pumps, and ductless systems, ensuring your home is serviced according to the highest industry standards.
Effective doesn't have to mean oversold. We size systems honestly and install them to code with quality fittings and clean workmanship, so you get reliable comfort with minimal disruption to your household.
We don't wait for failures to profit from them. Every maintenance visit is built around your system's age and condition. For hard-working systems, a spring coil cleaning is the difference between year 10 and year 15. That's the Potomac HVAC way.
Wherever you are in our service area, we've got it covered, with fast repairs, quality installs, and maintenance plans reaching every community on our list.
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Read MoreWhat a real HVAC tune-up includes, and why it matters. Straight answers from our technicians.
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Read MoreThe longer a struggling system limps along, the more it costs you. One call gets you same-day service and a clear quote from a team that knows Potomac.
Call (240) 896-8303 Now