Priority HVAC Repair & Installation in Alexandria, VA & Northern Virginia
Illustrative scene of an Integrity Duct & HVAC Services technician adjusting a smart thermostat inside a home.

Alexandria, VA · Residential & Commercial HVAC

Browse Our HVAC Services in Alexandria, VA

Find the right heating, cooling, ductwork, maintenance or indoor air quality service for your home or business. Start with your problem, then choose the service and appointment that fit.

Service Directory

Browse HVAC Services by Category

Start with what your system is doing. These nine pathways explain common symptoms, when different services make sense, and where to read more or schedule help.

Safety First

Smell gas, see smoke or sparks, hear a carbon monoxide alarm, or suspect immediate danger? Leave the affected area and call 911. The Service Finder below gives non-emergency suggestions, not a diagnosis.

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INTEGRITY
DUCT & HVAC SERVICES
We Repair the Air You BreatheHVAC solutions for Alexandria homes and businesses

COOLING & DIAGNOSTICS

Air Conditioning & Cooling

AC blowing warm air, freezing up or short cycling? Our Alexandria AC repair team evaluates airflow, electrical components, refrigerant-related performance and system operation to identify the cause before recommending repairs. Virginia’s summer heat and humidity can make cooling and moisture-control problems especially noticeable.

AC Repair & Diagnostics

HEATING & COMFORT

Heating & Furnace Repair

No heat, weak airflow or unusual furnace noises? We troubleshoot furnaces and heat pumps, including ignition problems, electrical controls and heating performance. We review findings and explain repair options before chargeable work begins.

Heating & Furnace Repair Options

AIR QUALITY

Indoor Air Quality

Persistent dust, stale air, musty odors or uncomfortable humidity can have several causes. We help evaluate filtration, ventilation, humidity control and existing HVAC conditions before discussing suitable improvements.

Indoor Air Quality Solutions

DUCTS & AIRFLOW

Ductwork, Ventilation & Dryer Vents

Air duct cleaning addresses accumulated debris, while duct sealing and repairs address leakage or damaged ductwork. Older Alexandria homes and townhouses may have restricted duct routes or uneven airflow that require a closer look. We also provide dryer-vent cleaning and assess potential duct replacement needs.

Air Duct & Dryer Vent Cleaning

PREVENTIVE CARE

HVAC Maintenance & Service Plans

Seasonal maintenance helps identify wear, restricted airflow and developing performance issues. Compare tune-up services and Comfort Plans, including their diagnostic-fee benefits, to find an approach that fits your equipment and budget.

Seasonal HVAC Maintenance

NEW SYSTEMS

HVAC Installation & Replacement

Replacing an aging furnace, AC or heat pump? Our free on-site replacement estimates review equipment, installation requirements, visible ductwork and access. We discuss appropriate equipment options, including efficiency ratings such as SEER2, and provide a written quote.

HVAC Installation & Replacement Options

SMART CONTROLS

Thermostats & Smart Controls

Smart thermostats can improve temperature scheduling and comfort when compatible with your existing equipment. We can evaluate control compatibility and installation needs. A system that fails to respond may require a separate diagnostic visit.

Smart Thermostat Installation

BUSINESS SYSTEMS

Commercial HVAC Services

Commercial heating and cooling require attention to equipment capacity, building access and business operating needs. We work with Alexandria-area businesses on rooftop and split-system troubleshooting, maintenance and replacement planning.

Commercial HVAC Services
Illustrative HVAC representative speaking with a caller.

Still unsure?

Describe the symptoms or project when you call. We can help select an appointment and explain when diagnostic fees may apply.

Call (571) 351-7391

Find the Right HVAC Appointment

Choose based on your situation: a malfunctioning system, a planned replacement, or a review of another contractor's written recommendation.

  • Clear options
  • Fees explained
  • Written quotes
Illustrative outdoor AC unit representing a repair diagnostic visit.

Diagnostic Service Visit

For equipment that isn't heating, cooling, or working properly.

  • We explain applicable diagnostic fees before testing and provide findings and repair options.
  • Comfort Plan benefits: Platinum waiver, Gold discount, Silver standard fee unless an offer applies, subject to plan terms.
  • No chargeable repair begins without your approval.
Schedule a Diagnostic

Any fee credit or waiver depends on current plan or offer terms.

Illustrative new residential HVAC condenser beside a home.

HVAC Replacement Estimate

For new equipment or replacing an existing system.

  • We review existing equipment, installation needs, visible ductwork and access, and discuss options.
  • Your written quote includes equipment, scope, price, warranty and an expiration date.
  • Separate fault-finding or troubleshooting may require an approved diagnostic charge.
Request a Free Estimate

Submitting a request does not confirm an appointment time.

Illustrative HVAC quote on a clipboard for a second-opinion visit.

Second Opinion on a Written Quote

For another contractor's written major-repair or replacement recommendation.

  • We review the written estimate on-site and discuss the recommended scope and options.
  • This is not an unlimited free diagnostic or an automatic new replacement quote.
  • Additional testing and applicable fees are explained and approved beforehand.
Request a Free Second Opinion

Bring or share the other contractor's written estimate.

How Your HVAC Visit Works

Move through the process to see what happens from your first call through approval of any chargeable work.

Tell us what you need

Describe the symptoms, equipment issue, estimate request, or second-opinion need. This helps us select the right appointment.

See what to expect during your visit →

Alexandria HVAC advice & education

Still Researching Your HVAC Problem?

Search Integrity's Knowledge Center for articles about cooling, heating, repairs and replacement decisions.

Article search is for learning about HVAC problems, not emergency assistance. Service appointments are available above and below.

Browse articles

Alexandria, VA · Northern Virginia

Licensed, Certified and Local

Integrity Duct & HVAC Services provides HVAC repair, installation, replacement and maintenance for Alexandria homes and light commercial properties. Our team assesses system condition, airflow and equipment concerns before recommending work, explains repair or replacement options, and discusses diagnostic charges upfront. No paid work proceeds without your approval.

  • Virginia Class A contractor
  • NATE-certified technicians
  • BBB A+ rated
  • Carrier Factory Authorized Dealer
  • Trane Comfort Specialist
  • Alexandria Chamber of Commerce member

HVAC Expertise for Alexandria Homes and Buildings

Older homes and established neighborhoods. Historic homes in Old Town Alexandria may have limited space for ductwork, equipment and modern system upgrades. Del Ray houses, Rosemont homes and other established properties can present different airflow, return-air and equipment-access considerations. Before recommending HVAC replacement or duct modifications, we review the existing system, visible ductwork, installation access and the property's comfort needs.

Townhomes, condos and seasonal comfort. Kingstowne and Alexandria-area townhouses may experience uneven temperatures between floors, while condos and light commercial buildings can require additional planning for equipment access and service coordination. Northern Virginia's hot, humid summers and cold winters also make cooling performance, moisture control and heating reliability important. We explain practical repair, maintenance and replacement options based on the equipment and conditions observed.

Clear recommendations · Upfront diagnostic charges · Approval before paid work

Review Our Contractor Credentials

Trusted by Alexandria Homeowners for HVAC Repair & Installation

See what local customers say about our HVAC diagnostics, repairs, system replacements, and customer service.

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Julio_SL8 profile picture
Julio_SL8
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I had a great experience which went above my expectations, the quality of work that was done installing my HVAC and A/C was better than I expected. Cristian and Mauricio were my technicians and they were able to finish the job smoothly and leave me happy with my new equipment. Roberto and Isac provided me the best quote around my area, they are very professional explaining all the work being done, they also went above and beyond to make sure I chose them for the job.
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R Dean profile picture
R Dean
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I needed to get my HVAC unit diagnosed at my high-rise condo. Not many HVAC companies took this on so it was nice to have integrity take it on. They came diagnosed it and figured out the best path forward for me and got the job done very promptly. I appreciate their service and customer service.
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K Wright profile picture
K Wright
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Integrity installed a top of the line HVAC in our home and they were highly efficient, knowledgeable, and professional . They were fair priced and provided everything we were hoping for. . Each teck was kind, and professional and we could not be more satisfied. We highly recommend their services without hesitation !
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M Unterkofler profile picture
M Unterkofler
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Awesome job. Repaired my AC system and now its great.
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R Brown profile picture
R Brown
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Excellent experience, product, and installation!
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C anderson profile picture
C anderson
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Isaac and his partner were awesome. They came on time. Were polite and courteous. Explained each step.they were taking to.fix the problem. They explained with integrity. They were my second opinion to a large reputable company who said that they couldn't fix my AC and immediately wanted to sell me a whole HVAC system. No sales job with Isaac. Just suggestions without any nudging. Integrity Duct and HVAC Services is my go to company. I tried the other company because Integrity was booked and was hot. In the end, we decided to deal with the heat the old fashioned way, fans, until Integrity came. They were worth the wait.
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Carlos profile picture
Carlos
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Excellent experience with Integrity and Isaac. We hired them to replace complete HVAC systems at two properties in Alexandria, and overall I was very pleased with the experience. Isaac was responsive, reliable, knowledgeable, and easy to communicate with. Their pricing was extremely competitive, particularly compared with several larger HVAC companies whose automated pricing systems produced quotes that were thousands of dollars higher for comparable work. It was also a pleasure to work with a local company and someone who lives and works in the Alexandria area rather than one of the larger companies. Communication was particularly good. Isaac coordinated directly with the tenants for scheduling and access, kept me informed throughout the process, and promptly provided the proposals, insurance, licensing, permit, and equipment information I needed to complete the condo association architectural applications. We did have a misunderstanding regarding pricing during the process, but I appreciated how Isaac handled it. He called me directly, discussed the issue, and we were able to reach a fair resolution quickly. How a company responds when there is an issue says a lot, and he handled it professionally. Both installations were completed as scheduled and the systems are working well. Isaac also followed through with the permits and warranty registrations. Overall, Integrity provided excellent value, quality workmanship, reliable service, strong communication, and great follow-through. After using them for two complete HVAC replacements, I would definitely work with Isaac and Integrity again and recommend them to others.
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G Stew profile picture
G Stew
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Integrity Duct & HVAC Services did an amazing job AGAIN! I used them several years ago to replace my furnace and decided to try them again to replace my A/C condenser. The team was timely, professional and detail-oriented. Upon completion they walked me through the entire job, detailing what the replaced, how it works and functions. I will continue to recommend and use Integrity in the future.
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N Miles profile picture
N Miles
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Great service and competitive pricing. I had a A/C component fail and Integrity was able to come out that evening to take a look. The blower motor had gone bad. They gave me some options including a more cost efficient one given the age of my system. Would definitely call them again for a new install when the time comes. UPDATE 7/2026: My 15 year old unit finally bit the dust and rather than spend more money replacing other components, I went for a new install. Integrity cam out the same day, gave me a very competitive quote, and were able to install 3 days later. Thanks again for the great service and saving me from the heat!

Alexandria, VA · Northern Virginia

Local service with real residential HVAC focus.

Integrity Duct & HVAC Services supports homeowners and light commercial properties in Alexandria and surrounding Northern Virginia communities with practical repair, replacement and maintenance guidance.

  • Residential and light commercial HVAC service
  • Focused on local homes, equipment and installation conditions
  • Backed by the contractor credentials listed above
Review Our Contractor Credentials
Illustration of HVAC service work at a Northern Virginia home.
Licensed, certified and local

Serving Alexandria and nearby Northern Virginia communities.

Your next step with Integrity

Ready to Schedule HVAC Service?

Whether you need troubleshooting, want to replace equipment, or have another contractor's written estimate to review, choose the next step that fits your project.

Diagnostic fees may apply; free replacement estimates and written-quote second opinions are separate appointment types.