Haymarket homes range from historic houses near the town center to large two-story homes in newer planned communities. Service First Heating & Air keeps both comfortable with furnace, heat pump and AC service from licensed, insured technicians. Expect upfront pricing, clear answers and same-day service when the schedule allows.
✔ Licensed & Insured HVAC Professionals
✔ Same-Day Service Often Available
✔ Upfront, Transparent Pricing
✔ Local Team Serving Haymarket
📞 Call Now (540) 690-4280 to Schedule Service
Home › Service Areas › Gainesville Area › Haymarket

Haymarket sits along I-66 and Route 15 in western Prince William County, about 1.7 miles from Gainesville, the center of our Gainesville service area. That short distance makes it easy for our technicians to reach you.
Haymarket’s mix of homes brings two common kinds of calls: older town-center homes with equipment that has seen many winters, and newer homes where the system runs but the upstairs never feels quite right. We handle both.
Your safety and comfort come first. Our team is fully insured and trained to handle all AC services with precision.
We use only trusted brands like Rheem to ensure long-lasting performance and energy efficiency.
From 10% discounts for veterans and seniors to flexible financing plans, we make cool comfort affordable.
Seasonal tune-ups and regular maintenance keep your system efficient, reliable, and ready for summer.
Many Haymarket homes are larger two-story houses, and upstairs/downstairs temperature balance is one of the most common complaints here. Heat rises, so the second floor warms up in summer and can stay stuffy even with the AC running. In winter, the first floor may feel drafty while some bedrooms swing too warm or too cool.
Duct layout, return air, filter condition and thermostat placement all play a part. Historic homes near the town center add another layer, since older construction and older equipment can make even heating harder to achieve.



Our technicians are licensed and insured and work on both residential and light commercial systems. We price every job upfront, offer same-day service when we can, and give a 10% discount to veterans and seniors. Flexible financing is available, and when replacement makes sense, we install trusted brands such as Rheem. Haymarket-area homeowners have rated us highly on Google.
Posted on Google![]()
Christopher McCraeTrustindex verifies that the original source of the review is Google.
Awesome !!Posted on Google![]()
ahushouraTrustindex 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 ChildsTrustindex 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!Posted on Google![]()
Joshua WehrleTrustindex 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!Posted on Google![]()
Brittney BrennanTrustindex 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!!Posted on Google![]()
Chris DixTrustindex 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.Posted on Google![]()
Ellen NosalTrustindex verifies that the original source of the review is Google.
Best people ever!Posted on Google![]()
Bryan HunsakerTrustindex 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!Posted on Google![]()
Michael HooksTrustindex verifies that the original source of the review is Google.
Always outstanding communication, timeliness, prices and service. I would highly recommend this company.Load more
Tired of a hot upstairs or a furnace you can’t count on? Call (540) 690-4280 or contact us online today.
Heat naturally rises, and in larger two-story homes like many in Haymarket, that makes the second floor harder to cool. Undersized return air, leaky ducts, a dirty filter or a single thermostat on the first floor can all make it worse. A technician can check airflow on each level and suggest fixes, from simple adjustments to zoning.
Yes. Historic town-center homes in Haymarket may have older furnaces, older ductwork or a mix of systems added over the years. Our technicians diagnose and repair older equipment and will tell you honestly when a repair makes sense and when replacement would serve you better. You get upfront pricing either way.
For many two-story homes, zoning can help a lot. A zoned system uses separate thermostats and motorized dampers so each floor gets the heating or cooling it needs. It isn’t the right fit for every house, so we look at your ductwork and equipment first. Sometimes airflow adjustments solve the problem without a full zoning setup.
Plan on two check-ups a year: one for heating in the fall and one for cooling in the spring. If you have a heat pump, it works year-round, so both visits matter. Regular service catches worn parts early, keeps airflow strong and helps your system handle Virginia’s humid summers and freezing winter nights.
First, make sure the thermostat is set to the right mode and temperature and that it has power. Check the air filter and replace it if it’s dirty. Look at your breaker panel for a tripped breaker. If the system still isn’t working after those checks, turn it off and give us a call.
Haymarket is part of our Gainesville service area. We also serve nearby Gainesville, Bristow, Nokesville. See every community on our service areas page.
From emergency repairs to full system replacements, our expert HVAC team is ready to help—day or night. Experience reliable service, honest pricing, and total peace of mind.