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Professional HVAC Company in Warrenton, VA

We provide expert heating, cooling, and indoor air quality services tailored to your needs—ensuring reliable performance, energy efficiency, and peace of mind all year round.

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Your Comfort, Our Mission — Trusted HVAC Services in Warrenton, VA

Since 2009, Service First Heating & Air has been a trusted HVAC company in Warrenton, VA, proudly serving homeowners and businesses throughout Warrenton and Fauquier County. As a local, family-owned HVAC contractor, we put your comfort first with honest recommendations, quality workmanship, and responsive service when you need it most. Our experienced technicians provide comprehensive HVAC services in Warrenton, VA , including AC repair , heating repair, furnace replacement, heat pump services, HVAC installation, preventative maintenance, and indoor air quality services. Whether you need a fast repair, a complete system replacement, or routine maintenance, we deliver dependable results backed by a one-year craftsmanship warranty, convenient 0% financing options, and 24/7 emergency HVAC services.

Top‑Quality Equipment

We partner with leading brands like Rheem to ensure lasting performance.

Years of Experience

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Simple & Hassle-Free Heating and Cooling Services in Warrenton, VA

For more than 15 years, we’ve helped homeowners enjoy dependable comfort with customized heating and cooling services in Warrenton, VA. From diagnosing complex HVAC issues to installing high-efficiency systems, our skilled technicians focus on solutions that improve performance, reduce energy costs, and extend the life of your equipment. Whether you need HVAC installation in Warrenton, VA , seasonal maintenance, emergency repairs, or a complete heating and cooling upgrade, Service First Heating & Air is committed to providing exceptional service, transparent communication, and lasting comfort on every visit.

Air Conditioner Services

Is your A/C ready for the summer heat? From tune‑ups and emergency repairs to custom installations, we keep you cool when it matters most.

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Heating Services

Gas and oil furnaces, boilers, heat pumps, geothermal systems—you name it, we service it. Stay warm all winter long with our expert support.

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Preventative Maintenance

Extend your system’s life and save on energy costs with bi‑annual inspections, coil cleaning, combustion analysis, filter replacement, safety checks, and more.

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HVAC System Replacements

Time for an upgrade? Get up to $1,250 off qualifying systems and enjoy 0% financing for up to 60 months on complete replacements.

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Indoor Air Quality Services

Breathe easier with our comprehensive IAQ solutions—air purifiers, humidifiers, UV germicidal lights, and duct cleaning.

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Your Comfort, Our Mission — Trusted HVAC Services in Warrenton, VA

Experienced Staff

Our NATE‑certified and master HVAC technicians bring decades of combined expertise.

Schedule Your HVAC Service in Warrenton, VA Today

Whether you need emergency repairs, seasonal maintenance, or a complete system replacement, Service First Heating & Air is ready to deliver dependable HVAC services in Warrenton, VA with prompt response times and personalized solutions. We work hard to ensure every customer enjoys reliable comfort, improved energy efficiency, and peace of mind throughout the year.

Contact our team today (540) 690-4280 to schedule your appointment with a trusted HVAC company in Warrenton, VA. From air conditioner services in Warrenton, VA to complete heating and cooling system installations, we’re committed to providing professional service, lasting results, and the highest level of customer satisfaction on every project.

Our Clients Love Us

         Posted on Google  
   
   Christopher McCrae 
 
 
 
 Trustindex verifies that the original source of the review is Google. Awesome !!
  
 
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   ahushoura 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent locally owned business. They replaced our AC system two years ago and they regularly service it. Great prices and service are what make them the best. I highly recommend them!
  
 
      Posted on Google  
   
   Sheryl Childs 
 
 
 
 Trustindex verifies that the original source of the review is Google. Seth Phillips Senior HVAC technician gave exceptional service, was prompt, efficient, knowledgeable and extremely helpful! I look forward to doing business with this company!
  
 
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   Joshua Wehrle 
 
 
 
 Trustindex verifies that the original source of the review is Google. Another incredible experience with the best professionals you could ask for - timely - professional - courteous. If you need heating, cooling, anything - you need to call these guys. Awesome job!
  
 
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   Brittney Brennan 
 
 
 
 Trustindex verifies that the original source of the review is Google. I met Seth a few years ago when I had another company install a new AC unit improperly. He fixed it and ended up installing a new secondary unit for me a short time later. Ever since then I’ve been a faithful customer and go to Seth for all of our HVAC needs and concerns. I am so thankful to have found a solid company after having countless companies take my money and give me the run around. I cannot recommend Seth or this company enough!! They will take the absolute BEST care of you!!
  
 
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   Chris Dix 
 
 
 
 Trustindex verifies that the original source of the review is Google. My heat pump broke in the middle of winter. I called several companies before this one and they all couldn't get to me for a whole month! I called this company and they were able to send someone to take a look at the heat pump the same day. This offered me a lot of relief as I wanted to resolve the broken heat pump as soon as possible so that I didn't have to wear a coat inside my own house or worry about frozen pipes. The technicians were all very respectful of my property and cordial. I ended up getting a new heat pump because we would have had to replace most of the parts of the old one. The price for the new heat pump was fair. Would definitely recommend giving these guys a shot.
  
 
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   Ellen Nosal 
 
 
 
 Trustindex verifies that the original source of the review is Google. Best people ever!
  
 
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   Bryan Hunsaker 
 
 
 
 Trustindex verifies that the original source of the review is Google. Professional friendly service. They do a great job! They fix systems not just change units like the other guys!
  
 
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   Michael Hooks 
 
 
 
 Trustindex verifies that the original source of the review is Google. Always outstanding communication, timeliness, prices and service. I would highly recommend this company.
  
 
  
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Complete HVAC Services for Every Season

Your comfort depends on a dependable HVAC system, and our team delivers comprehensive HVAC services in Warrenton, VA designed to keep your home comfortable through every season. Whether you’re dealing with an aging system or planning an upgrade, our experienced technicians provide reliable solutions tailored to your property’s unique heating and cooling needs. From minor repairs to complete system replacements, we handle every project with precision and care. As a trusted HVAC company in Warrenton, VA , we service furnaces, air conditioners, heat pumps, thermostats, and complete comfort systems to ensure long-lasting performance and improved energy efficiency. Every service is backed by honest recommendations and quality workmanship you can count on.

Affordable Pricing

10% off same‑day repairs and special discounts for seniors, veterans, and first responders.

NATE‑Certified Technicians

Our highly trained professionals deliver expert service on every visit.

Rheem Pro Partner

We install top‑quality equipment backed by industry‑leading warranties.

One‑Year Craftsmanship Warranty

Enjoy peace of mind knowing our workmanship is fully guaranteed.

0% Financing & Special Discounts

Flexible payment plans and exclusive savings for seniors, veterans, and first responders.

Emergency & After‑Hours Availability

24/7 support to resolve unexpected HVAC issues whenever they arise.

Free Same‑Day Estimates & Second Opinions

Transparent pricing with no surprises—get a quote before any work begins.

Local, Family‑Owned Since 2009

Personalized service rooted in community trust and dedication.

Preventative Maintenance Plans

Proactive care to extend equipment lifespan and maximize energy efficiency.

Reliable AC Repair and HVAC Installation Services

When temperatures climb, you need fast and dependable AC repair in Warrenton, VA to restore comfort to your home. Our technicians quickly diagnose cooling issues such as weak airflow, refrigerant leaks, frozen evaporator coils, and thermostat malfunctions, helping you avoid prolonged downtime during the hottest months of the year.

If your existing equipment is no longer efficient, we also provide professional HVAC installation in Warrenton, VA using high-performance, energy-efficient systems. We’ll guide you through every step of the replacement process, ensuring you receive a properly sized system that delivers reliable cooling, lower utility bills, and lasting indoor comfort for years to come.

Frequently Asked Questions

What HVAC services do you offer in Warrenton, VA?

We provide complete HVAC services in Warrenton, VA, including air conditioner repair, heating and furnace repair, heat pump service, HVAC system replacement, preventative maintenance, and indoor air quality solutions. Our certified technicians handle both residential and light commercial HVAC needs.

Do you offer emergency HVAC repair services?

Yes. Service First Heating & Air offers 24/7 emergency HVAC repair for heating and cooling systems. If your AC stops working in the summer or your furnace fails in the winter, our local technicians respond quickly to restore comfort and safety.

How do I know if I need HVAC repair or full system replacement?

If your HVAC system requires frequent repairs, struggles to maintain consistent temperatures, or is more than 10–15 years old, replacement may be more cost-effective. We provide honest assessments and help you compare HVAC repair vs. replacement options based on performance, efficiency, and long-term savings.

How often should I schedule preventative HVAC maintenance?

We recommend preventative HVAC maintenance twice per year—once before summer for your air conditioner and once before winter for your heating system. Regular tune-ups improve efficiency, reduce breakdowns, and extend the lifespan of your HVAC system.

Do you service both heating and cooling systems?

Yes. We specialize in both heating and cooling services, including furnace repair, heat pump repairs, air conditioner service, and full HVAC system maintenance. Our team is trained to service all major HVAC brands and system types.