Heating Installation & Repair Services

Heating system repairs and service in Virginia, Maryland, and Washington, D.C.

Air conditioning unit
Air conditioning unit

Heating Services

Don’t underestimate how low the temperature can plummet during winter in the Maryland, Virginia, and Washington, D.C. region. The characteristically mild conditions in the Mid-Atlantic can quickly morph into heavy snowfall, freezing temperatures, and icy conditions during winter months.

Your heating system is the only thing standing between you and the brutal cold. The last thing you want is for your system to break down when you need it most. To keep your family warm, make sure you schedule a seasonal heating inspection with John C. Flood. 

Call the team (703) 752-1267 at or contact us online to schedule service.

Experienced Heating Technicians

Heating Installation

Northern Virginia, Maryland, and Washington, D.C. residents understand the bitter cold of winter. When the temperature drops below freezing, it’s dangerous to not have proper heat in your home. Our licensed HVAC experts will conduct a home inspection to determine the BTUs necessary to keep your home comfortable and what size furnace is right for your home. 

Without an experienced team, an improperly sized heating system can lead to wasted fuel, short cycling, or overheating. A new, more efficient heating system will lead to:

  • Increased energy efficiency
  • Lower energy bills
  • Fewer repairs in the near future
  • Decreased chance of a costly repair


Seasonal Heating Service

Get ahead of emergency heating repair by joining our Service Partner Program. This maintenance plan is designed to help homeowners get ahead of costly repairs through regularly scheduled upkeep. Our team recommends that customers sign up for annual service because our team will contact you to remind you of the seasonal needs of your heating system.

Typically, people schedule tune-ups during fall before the heavy-use months from October to March. As the temperature drops, your HVAC system will have to work harder to keep you and your family comfortable. Routine HVAC maintenance is the best way to prevent the need for emergency heating repairs. If properly serviced, your heating system can last you up to 15 years.

Emergency Heating Repair

Unfortunately, every homeowner’s heater will inevitably give out. Regular annual maintenance can help prolong the lifespan of your furnace, boiler, or heat pump. However, you will eventually run into some type of issue with your home’s heating system.

With unparalleled diagnostic equipment, extensive team training, and the highest quality products, John C. Flood ensures that you’ll receive superior heating repair service:

  • HVAC air filter replacement
  • Digital thermostat calibration and repair
  • Duct sealing and repair
  • Examine heat exchanger for signs of corrosion
  • Evaluate blower and clean components
  • Check intake vents for blockages
  • Inspect burner for proper ignition
  • Lubricate all heating system components to reduce friction


How Do You Know When You Need Heating Service?

There are several signs that you’re in need of heating repair. Cold temperatures require prolonged use of your heating system, which can be incredibly taxing for your system The last thing you want is for your system to breakdown unexpectedly and have to suffer in a freezing home until HVAC technicians arrive.

There are a few telltale signs that signal you are in need of heating repair services:

  • Cool air blowing from the vents with the heat turned on
  • Continuous burning smell
  • Short cycling 
  • Uneven heat and cold spots in your home
  • Strange noises from your furnace or boiler
  • Discolored pilot light


Catching these signs early on — ideally before winter — can ensure that they’re fixed before they turn into major, expensive problems.

Let John C. Flood Keep You Warm

Don’t get left in the cold during the middle of winter! The expert heating repair team at John C. Flood has all the equipment necessary to keep your system functioning smoothly. We’ve been helping homeowners in Virginia, Maryland, and Washington, D.C. region for over 115 years. No other heating repair company has as much experience increasing heating efficiency as our team.

Whether you’re in need of a total system replacement or emergency heating repair, you can trust John C. Flood to handle the job in the most cost-effective way for you. Contact us today!

Watch a recent Residential HVAC Installation


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    their professionalism in all matters...
    Excellent knowledgeable service and on time appointments,The tech could not have been more helpful.
    Extremely professional. Arrived exactly on time. Based on my description of the problem with the A/C unti, he suggested the most likely cause, which turned out to be
    correct andn effected the component replacement. Overall elapsed time was roughly 45 minutes. Recommend John C. Flood and it staff, especially our technician, most highly.
    Our technician, James was ahead of time. Very professional and very personable at the same time. Pointed out some things that will need attention in the future and made recommendations that will save me money.

    Our Expertise Includes

    • Attic ventilating systems
    • Boilers and Radiators
    • Burnham and A.O. Smith comfort systems
    • Ductwork and sheet metal
    • Energy Management Plans
    • Factory authorized dealer for Bryant & Honeywell
    • Gas and electric hot water heaters
    • Gas-fired hot air and hot water heating systems
    • Heat pumps
    • Heating and air conditioner tune-ups
    • High velocity small duct systems
    • Space-Pak System
    • Unico System
    • Indoor air quality and humidification systems
    • Programmable thermostats
    • Radiant floor heating
    • Zone hot water heating systems