Most Bristow homes sit in newer subdivisions and townhome communities, and many rely on a heat pump with a gas furnace as backup. Service First Heating & Air keeps those systems working together through every season. Every visit comes with upfront pricing from licensed, insured technicians, and same-day appointments are often open.
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Home › Service Areas › Gainesville Area › Bristow

Bristow stretches along Linton Hall Road and Route 28 in Prince William County, about 3.7 miles from Gainesville. As part of our Gainesville service area, Bristow homeowners count on us for repairs, tune-ups and system upgrades.
Because many Bristow homes use a heat pump for most of the year and a gas furnace on the coldest days, we often work on both pieces during a single visit.
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 Bristow homes were built in newer subdivisions and townhome communities, so the equipment is often a modern heat pump paired with a gas furnace. This setup, often called dual fuel, lets the heat pump handle mild weather efficiently and hands off to the furnace when temperatures drop.
That hand-off depends on the thermostat and its settings. When something is off, the furnace may run too often, or the heat pump may keep struggling in the cold. In townhome rows, outdoor units can sit close together, so keeping them clear of debris and snow matters.


A preventative maintenance plan keeps both systems on a regular schedule.

We send licensed, insured technicians who work on residential and light commercial systems. Every job starts with upfront, transparent pricing, and same-day service is often available. We also offer a 10% discount to veterans and seniors, flexible financing on new equipment and installs of trusted brands like Rheem. You’ll find strong Google ratings from Bristow-area homeowners.
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
Heat pump acting up or furnace not kicking on? Call (540) 690-4280 or reach us online to schedule.
A dual-fuel system pairs an electric heat pump with a gas furnace. The heat pump heats your home in mild weather, and the furnace takes over when it gets colder outside. Many Bristow homes use heat pumps with gas furnace backup, so this setup is common here. Both parts need care for the system to work well.
Heat pump air often feels cooler than furnace air, even when it’s working, because it heats at a lower temperature. But if rooms aren’t reaching the set temperature, there may be a problem with refrigerant, the defrost cycle, the outdoor fan or the backup heat. A technician can test the system and tell you what’s normal and what isn’t.
Yes. Heat pumps run a defrost cycle to melt frost off the outdoor coil, and that can release a cloud of steam for a few minutes. What isn’t normal is a unit covered in thick ice that never clears, or one that stops running. If you see that, switch the thermostat to emergency or backup heat and call for service.
Twice a year is a good rule: once in spring for cooling and once in fall for heating. Heat pumps run in both seasons, so they get more wear than a furnace alone. In townhomes, the indoor unit often sits in a closet or attic, so regular visits also make sure filters and drains aren’t forgotten.
Not always. If one part is failing and the other is in good shape, replacing only the failing part may make sense. But if both are older, replacing them together helps make sure they’re matched and work well as a team. We’ll look at the age and condition of each and give you upfront pricing for your options.
Bristow is part of our Gainesville service area. We also serve nearby Gainesville, Nokesville, Haymarket. 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.