HVAC Installation & Repair

HVAC repair, service, and installation in the District of Columbia, Virginia, and Maryland areas.

Air Conditioner repair
Clean air in a home

A Flat-Rate, Trustworthy HVAC Team

Most homeowners don’t think about needing HVAC service on a day-to-day basis until there’s an emergency. As a result, air conditioning and heating are often taken for granted — until the system breaks down when you need it most.

Finding a reliable and trustworthy HVAC repair company near your home can become a time-consuming task. If your HVAC system failed during the months of extreme temperatures, it’s important to have a technician at your home as soon as possible.

John C. Flood has over 100 years of experience providing HVAC repair service to homes in the District of Columbia, Virginia, and Maryland. Our team of trusted technicians is reliable, knowledgeable, and adept.

Our HVAC service experts work at a flat-rate, ensuring that they will quickly work to diagnose and repair the cause of your HVAC problems. Additionally, flat-rate pricing gives technicians the ability to focus on the issue at hand and find a solution. A flat-rate pricing system ensures that our loyal customers are always charged fairly.

HVAC Service

John C. Flood provides 24-hour, 7-days-per-week service. We make sure that if you have an emergency, someone will be able to answer your call and dispatch help!

Our team also provides regularly scheduled maintenance and HVAC inspections. The trained eyes of our technicians catch problems early and help save our customers on expensive repairs later on.

Frozen coils, water leaks, faulty ductwork, and other HVAC defects can hurt your home’s energy efficiency. John C. Flood ensures your energy bill is as low as possible through high-quality HVAC installation and service.

Our HVAC services include:

  • Inspection and evaluation of the HVAC unit
  • General maintenance and cleaning of interior and exterior components
  • Leak detection and repairs
  • Replacement of malfunctioning or broken components
  • Coil cleaning and upkeep
  • Checking or replacing the HVAC or furnace filter
  • Evaluation and reconfiguration of ductwork
  • Cleaning of AC drain tube
  • Installing humidifiers or dehumidifiers
  • Whole home air purifiers
  • Programmable thermostat


If there are specific HVAC services you have questions about. Contact John C. Flood or call (703) 914-1800. The dedicated team of expert technicians is happy to provide HVAC installation guidance or answer any questions regarding your heating or air conditioning needs.

HVAC Installation

John C. Flood is committed to providing our customers with the most comprehensive service at the lowest cost. Therefore, we offer exclusive online coupons for HVAC service offerings. If you are interested in HVAC installation, it’s important to hire licensed professionals.

A DIY job might be free, but can be extremely dangerous and create the need for more costly repairs in the future. John C. Flood provides subject-matter expertise in the District of Columbia, Virginia, and Maryland regions through helpful maintenance tips found on our blog. However, we always recommend consulting a professional for HVAC repair service to keep you and your family safe.

Contact John C. Flood For All HVAC Needs

Whether you need minor HVAC improvements to boost energy efficiency or you need HVAC installation or reconfiguration, contact John C. Flood to take care of your home. No other HVAC service team has as much experience with the problems unique to the DMV region as John C. Flood.

As a home service provider, we care about the comfort and functioning of your home's HVAC system. More importantly, we care about the safety and satisfaction of you and your family.

Whether it’s an HVAC emergency or regularly scheduled maintenance, you can count on the John C. Flood team to fix technical issues and provide a great customer experience.

Call us at (703) 752-1267 or schedule online for all of your HVAC, plumbing, and electrical needs!

Watch a recent Residential HVAC Installation


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    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.
    Scott,our technician showed up on time...on a Saturday no less, for emergency help with our a/c..he quickly diagnosed the problem and got it resolved. Awesome service!