Don't sweat through another night or pile on another blanket. Dundalk HVAC delivers fast, dependable HVAC repair and replacement for local families, backed by upfront pricing and real results.
When the system quits, you want a company that shows up fast and fixes it for good. Our experienced HVAC technicians cover the whole area with stocked trucks, straight answers, and quality work.
We take on the full range of comfort problems, from failed capacitors and cracked heat exchangers to ductless installs and commercial rooftop units, with the hands-on experience the job calls for.
New air conditioners sized by load calculation and commissioned properly.
Heating systems of every type repaired and tested before we leave.
Quiet, efficient ductless systems with clean line-set installs.
Gas and electric furnace repairs with combustion and safety checks included.
Honest repair-or-replace advice, and clean changeouts when it's time.
Spring and fall maintenance that keeps efficiency up and breakdowns down.
Heat pumps sized for your climate, with backup heat set up correctly.
New furnaces installed with proper venting, gas work, and a full startup test.
Full system installs with balanced airflow and clean, code-compliant work.
Same-day air conditioner repairs with an upfront price before work starts.
Source-removal duct cleaning, not a quick vacuum and a coupon.
One call for any breakdown, heating or cooling, with the fault found and fixed.
Open now·Speak with someone about your HVAC needs
When the air conditioning quits or the furnace won't light, you need a technician who finds the real problem and fixes it the same day.
When your AC hums but won't cool, blows warm air, or keeps tripping the breaker, the fix is usually a single worn component. We test the system, find it, and replace it, often the same day. Pricing is upfront, and we'll tell you honestly whether a repair is worth it on an older unit.
When the furnace clicks but never lights, lights and shuts off, or runs without warming the house, the cause is usually one component. We test the ignition, airflow, and safety controls to find it. Every visit includes a safety check of the burners and venting, and you'll know the price before we start.
Most failures start small and give you clues first. Below are the warning signs local homeowners run into most, and any one of them is reason enough to call us for a closer look.
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 repairShort cycling wastes gas, stresses the heat exchanger, and never quite warms the house. We find the safety control tripping it and fix the cause.
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-upsWe size replacements with a real load calculation, not a guess, so the new system delivers even temperatures and lower bills from day one.
System replacementIf some rooms get dusty faster than others, leaky or dirty duct runs are the likely cause. We inspect, clean, and seal what we find.
Air duct cleaningAdditions and bonus rooms rarely get enough duct capacity. A dedicated ductless head fixes the problem permanently.
Mini-split installationAn HVAC system never fails at a convenient time. We schedule fast, show up on time, and arrive with the parts to finish the job.
Experience is what separates a lasting fix from a temporary one. Our technicians have spent years reading these systems, refrigerant behavior, combustion, airflow, electrical faults, and matching the repair to the actual cause.
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.
Lasting comfort comes from fixing the cause, not the symptom. We find why your system failed and shut that down for good, then back the work with a real guarantee.
For over 12 years, Dundalk HVAC has been a leading provider for HVAC service in this part of MD. Our hometown technicians understand the unique challenges that local comfort systems face, from the age of local housing stock and its ductwork quirks to the code requirements local inspectors actually check.
Our team goes beyond the quick patch. We check the airflow, the charge, and the electrical supply driving the failure common to local homes and businesses. This local knowledge means faster diagnosis, fewer repeat visits, and systems that last.
Get a price quote from a local team that knows homes like yours.
Our 4-step process is designed for accuracy, speed, and zero surprises on the invoice.
Ring (443) 293-9736 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.
We inspect the whole system, not just the obvious symptom, and give you a straight answer: what failed, why, and what repair versus replacement really costs.
We complete the approved work on the spot whenever possible: quality parts, code-compliant connections, and no shortcuts hidden behind the air handler.
We verify temperatures at the vents, check the charge, confirm the condensate drains clear, and walk you through what was done. Optional maintenance plans keep the system cleaned, inspected, and running efficiently for years.
Upfront pricing · Same-day service available
The first visit sets the tone. Here's how we respond when you call Dundalk HVAC for emergency HVAC service.
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.
Your technician shows up ready to work, not just to look. The common failure parts ride on every truck, so the visit moves straight from diagnosis into repair.
During the visit, we test the full system. Our technician works through electrical, refrigerant, and airflow checks and shows you exactly what failed and why.
Lasting comfort is the whole point. We verify the repair, note the system's age and condition, and offer a simple seasonal plan that keeps efficiency up, breakdowns down, and miserable nights off your calendar.
"The furnace quit at 11 pm with the temperature dropping fast and a newborn in the house. They answered right away and talked me through checking the thermostat and breaker, then had a technician out first thing. Heat was back before noon. Absolute pros."
"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. Zero regrets on this one."
"Another company quoted us a full system replacement. Dundalk HVAC found a bad blower motor in twenty minutes and repaired it on the spot. The tech said the rest of the system had years left in it. You remember honesty like that."
Good HVAC service comes down to doing the small things right. These are the commitments that earn Dundalk HVAC repeat customers and referrals year after year.
We don't send a rookie with a gauge set and a hope. Each technician brings genuine field experience in diagnosis, safe gas and electrical work, and clean installation, the kind of depth that turns a service call into a lasting fix.
We size every replacement to an actual load calculation rather than defaulting to whatever's on the truck. Installations get done to code: sealed duct connections, correct line sets, proper condensate handling, clean electrical work. You get a system that performs for years, not just on day one.
We don't wait for failures to profit from them. Every maintenance visit is thorough and documented. For older equipment, a spring coil cleaning is the difference between year 10 and year 15. Period.
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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