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Whether it’s time for new equipment or your existing systems could use a boost, Cardinal provides the comprehensive HVAC services you need.
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Locally Owned and Operated

A fixture in our community, dedicated to serving our neighbors since 2013.

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Satisfaction Guarantee

Our job isn’t complete until you are fully satisfied with our work, guaranteed.

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Innovative Solutions

Innovative Solutions

Get the best equipment to meet your family’s needs and comfort demands.

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Award-Winning Service

Our highly skilled technicians deliver award-winning service on all jobs, big and small.

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About Cardinal Plumbing, Heating & Air
At Cardinal, we live and work in our community and always strive to make it better. We know the value of hard work and honesty and strive to give every customer the best experience possible. Our satisfaction guarantee stands behind every service call, so you can rest assured that when you call us, your work will be done quickly, accurately, and at a fair price. When you need us, we are just a call away!
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Professional Plumbing, HVAC, Gas & Water Treatment Services

For Homes & Businesses in Northern Virginia

With locations in Sterling, Alexandria, and Gainesville, Cardinal Plumbing Heating & Air Inc. is positioned to serve home and business owners throughout all of Northern Virginia. We are a fully licensed, locally owned company that provides same-day service to area communities at an honest value, seven days a week. Our technicians are company employed – never subcontracted – and led by master plumbers, certified HVAC technicians, and master gas feeders. We provide ongoing training for all of our employees to ensure we’re able to provide the highest level of service for our customers. With more than 5,000 five-star customer reviews, an A+ rating with the Better Business Bureau, and a money-back guarantee, we are the company you can trust for all of your plumbing, HVAC, gas, and water needs.

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Cardinal Heating and Cooling Services

Taking care of the HVAC system in your home or business requires a multi-faceted approach. From selecting and installing a new unit to performing routine maintenance and repairs, Cardinal is your one-stop shop for all your HVAC needs.


The Cardinal heating and cooling team is dedicated to ongoing training. With up-to-date industry knowledge and experience, it’s our privilege to guide customers with expert advice.


Our wide range of service specialties ensure we can handle every area of HVAC and plumbing in residential, commercial and industrial settings.


Starting with an air quality control assessment, our team can help your whole family breathe easier with a whole house air purifying system. Cleaner air means your HVAC unit won’t need to work as hard, which helps reduce utility costs and increases your unit’s lifespan.


When it comes to the water your family relies on, you can count on our expert plumbers to set you up with a water softening and filtration system. By providing your household with clean water, you can keep your family and plumbing system happy and healthy.


Our comprehensive Nest Protection Plan makes it easy for home and business owners to leave regular maintenance, cleanings and inspections to us.


Our Cardinal heating and cooling experts arrive on time, uniformed and ready to help. Whether you need diagnoses, repairs or a system replacement, we’ll guide you through the process with honest advice and transparent pricing.


Air Duct Services, VA

Your HVAC system is only as clean and efficient as its individual components. The air ducts in our homes are often overlooked, but they play a major role in system efficiency.


Air ducts are responsible for transporting heated or cooled air throughout your home. Dirty, clogged air ducts can greatly impede the efficiency of your HVAC system, and it can impact the quality of the air you breathe.


Air duct leaks can lead to higher utility costs and unnecessary wear and tear on your unit. When heated or cooled air escapes into unused spaces, such as the attic, your system will need to work harder to reach your desired temperature settings. Our HVAC experts can evaluate your ductwork and recommend the best course of action, with solutions like duct sealing and disinfectant fogging to clear ductwork of issues like mold growth.


The Cardinal heating and cooling team offers professional air duct services, including air duct cleaning, air duct sealing and repairs and air duct system replacements.


Professional Plumbing Services in Northern VirginiaA

If you’re a Sterling, Alexandria or Gainesville local, or you reside in a neighboring town, chances are you’ve seen our trucks around. That’s because our team is always hard at work helping our community members stay safe and comfortable at home.


Our HVAC and plumbing pros are all local residents, which means our team is invested in serving our neighbors and building long-term relationships through trust, integrity and respect.


Cardinal Plumbing, Heating and Air is proud to offer a wide range of plumbing services, from small jobs like leak repairs to major projects, like fixing or replacing a breached sewer line.


Whatever your HVAC or plumbing needs, the pros at Cardinal can help. Call 703-721-8888 or contact us online to get started today.