The house won’t heat
Check the thermostat, the breaker, the furnace switch and the filter first.
Still cold? Most no-heat calls end in an igniter, a flame sensor or a control board. Heating repair, explained.
HVAC Service in Northern Virginia
An HVAC service call is $99 for the diagnostic visit, and a seasonal tune-up is $99 per system. Every repair is priced in writing before the technician starts it, on every brand of furnace, heat pump, air conditioner, boiler and ductless mini split.
Get your price in writing
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Rather talk now? (703) 997-9757
- Every brand, every system
- Priced before the work starts
- 24/7 emergency service
5.0 stars across 1,132 reviews
Licensed and insuredVirginia Class A contractor #2705192276
24/7 emergency serviceOften same-day, and we will tell you honestly when we can get there.
Our own HVAC installersA dedicated heating and cooling team, separate from our plumbers
Price in writing firstYou see every option priced before anything is ordered
What it costs
HVAC service prices
in Northern Virginia
Our own prices from our price book, not a national average. Yours is written down before any work starts.
Diagnostic visit
$99
The service call: a technician finds the fault and prices the fix in writing before starting it. Included with Comfort+.
Tune-up, per system
$99
The furnace before winter, the AC before summer; heat pumps, boilers and ductless the same. Both are included with Comfort+. About tune-ups.
Heating Check, per system
$67
Through December 31. Burners, igniter, flame sensor and heat exchanger inspected, airflow measured. The Heating Check.
Most repairs
$95 to $2,400
From cleaning a flame sensor to a new blower motor, every brand, written down before the work starts.
Comfort+ membership
$199 a year
The fall and spring visits, the diagnostic included and 15% off any service.
A new system, installed
$8,898 to $23,000
or $148/mo at 0% APR for 60 months
Furnace and AC together, when a repair stops making sense. HVAC replacement.
Monthly figures: 60mo @ 0% APR on each starting price, the whole price financed, on approved credit. Longer plans lower the payment and cost more in total. The lender sets the final terms. How financing works
Every kind of visit, priced and explained: what HVAC service costs, and this month’s deals on the offers page.
Holding someone else’s quote? Our free second opinion: a technician looks at the system you were quoted on and tells you what it actually needs.
What we service
Heating and cooling service
for every system in the house
One call covers all of it. Pick what you need for its own page and prices.
Heating repairFurnaces and heat pumps that won’t heat, blow cold or cycle.AC repairAir conditioners that won’t cool, freeze up or leak water.Heat pump repairDefrost, backup heat and the outdoor unit, every brand.Boiler serviceHot water boilers, gas and propane: repair and replacement.Seasonal tune-ups$99 a system: the heat in fall, the cooling in spring.HVAC replacementA new furnace and AC, heat pump or ductless, priced first.Ductless mini splitsOne room or the whole house, repaired or new.Air duct cleaningEvery supply and return line washed, camera photos first.Commercial HVACOffices, restaurants, churches and rental properties.
How the call goes
How an HVAC service
call goes, start to finish
Often same-day, and we will tell you honestly when we can get there. We run 24/7 emergency service.
- 1
You call, a person answers
Day or night. Tell us what it’s doing and we set up the visit.
- 2
Diagnosis, $99
The technician checks the whole system, not just the part you noticed: the equipment, the thermostat, the filter, the drain and the electrical.
- 3
The price, in writing
Before anything is replaced. Approve it or don’t, and if a repair isn’t worth making on an old system, you hear that too.
- 4
Fixed and tested
The repair, then a full run, so you know it holds before we leave.
Tune-ups
What a tune-up does,
and how often you need one
Twice a year: the heat in the fall, the cooling in the spring. One tune-up covers one system.
- Heating, every fall. On a gas furnace the burners, igniter, flame sensor and heat exchanger; on a heat pump the defrost and the backup heat; on both the electrical, the thermostat, and the airflow and temperature rise, measured.
- Cooling, every spring. The outdoor coil rinsed, the refrigerant pressures read, the capacitor and contactor tested, the drain line cleared.
- $99 a system. Heat pumps, boilers and ductless mini splits too, same price, and both seasonal visits are included with Comfort+. Book a tune-up.
- Want the whole list? The HVAC service checklist goes through a visit line by line, so you can hold any technician to it.
A condenser coil before and after a tune-up cleaning, at a Northern Virginia house.
This time of year
Heating service before
the first hard freeze
Late fall is when a furnace that limped through last winter quits for good.
- The Heating Check, $67 per system, through December 31: burners, igniter, flame sensor and heat exchanger inspected, electrical tested, airflow and temperature rise measured, and photos of anything we flag, in writing, before we leave. The Heating Check.
- No heat right now? Check the thermostat’s mode and batteries, the breaker, the switch on the furnace itself and the filter. Still nothing? Call us; that’s what 24/7 emergency service is for. Emergency HVAC service, step by step.
- Blowing cold air in heat mode? On a gas furnace it’s often the flame sensor ($95 to $180) or the igniter ($240 to $410). Why it happens.
- Smell gas? Leave the house, then call Washington Gas or 911 from outside. Don’t flip a switch on the way out.
Two SwiftPro heating technicians at an open gas furnace in a Northern Virginia basement.
HVAC service plan
Comfort+: both seasonal
visits for one price a year
- $199 a year. A heating maintenance visit every fall and a cooling maintenance visit every spring.
- The diagnostic visit is included when something breaks between visits, and 15% comes off any service.
- Half of each repair bill is banked toward replacing that system, up to $1,500.
- Two more visits in the same year: a dryer vent cleaning, and a water heater flush with a sewer camera inspection. How Comfort+ works.
When to call
Six reasons people call us
for HVAC service
What people describe on the phone, and what it usually turns out to be. A technician confirms it.
Cold air from the vents in heat mode
On a heat pump, a few minutes of it on a frosty morning is defrost, and that’s normal.
An hour of it isn’t. Heat pump repair.
The AC runs but won’t cool
A frozen coil, a dirty outdoor coil, a failed capacitor or low refrigerant, in about that order.
A run capacitor runs $240 to $370. AC repair.
Water around the furnace or air handler
Almost always the condensate drain: the line clogs and the pan overflows.
Clearing it, with a trap and a float switch added, runs $175 to $420.
It turns on and off every few minutes
A dirty flame sensor, a thermostat in the wrong spot, or a system too big for the house.
A flame sensor cleaned runs $95 to $180; a thermostat replaced, $300 to $640.
A new noise or a burning smell
A dusty smell the first time the heat runs each fall is dust burning off, and it fades.
A hot electrical smell, a squeal or a grind isn’t: turn the system off at the thermostat and call.
What customers said
HVAC service calls, in our
customers’ own words
5.0 stars across 1,132 reviews. These three are about service calls and checkups.
We had SwiftPro come out for a checkup on our furnace. They gave it a thorough check and thankfully it was in good shape. We also asked about replacing an existing inefficient humidifier on the furnace and they proposed a better solution.…
Moises and Oscar from SwiftPro were on-time, professional, and explained in detail the process of what needed to be done with regards my HVAC system and the plumbing situation at home. I'm glad they were able to locate the issue (low pressures in the refrigerant line)…
…Moises found the problem quickly (When I had already had another contractor out to try and find the issue but they couldn't) and kept me updated on his findings.…
Shown as written on Google, cut to the part about the job. Read them all.
Who comes out
The technician at your
door works for SwiftPro
No subcontractors: the phone call, the visit and any follow-up are ours.
- A dedicated HVAC team. The technicians who service your system do heating and cooling every day. Our plumbers are a separate team, and when a job touches both trades, both are in the same company.
- On Trane’s dealer locator as a Trane Comfort Specialist, a Rheem Pro Partner, and Carrier experts.
- Virginia Class A contractor license #2705192276, fully insured, and BBB Accredited with an A rating.
- 5.0 stars across 1,132 reviews, and you can read them all.
- Family owned, out of Lafayette Center Drive in Chantilly and our office in Ashburn. About SwiftPro.
The SwiftPro team in front of our wrapped vans at the Chantilly shop.
The system we put in first
Built to take a beating. Put in by our crew.
Heat lamps, snow and rain on one outdoor unit: that’s Trane’s own film. We’re a Trane Comfort Specialist, on Trane’s own dealer locator, and when you pick a Trane, our crew puts it in.
Films: Trane’s own.
Where we work
HVAC service in every
Northern Virginia town we serve
Out of Chantilly and Ashburn, across six counties. Pick your town for its page: our prices there, the houses and the systems we see most.
Fairfax County
Arlington County
Loudoun County
Prince William County
Fauquier County
Stafford County
Asked on the phone
HVAC service questions,
answered straight
How much does an HVAC service call cost in Northern Virginia?
The diagnostic visit is $99: a technician finds the fault and prices the fix in writing before starting it. Most repairs we price run $95 to $2,400, from a flame sensor cleaned ($95 to $180) to a blower motor ($670 to $2,400). Comfort+ members get the diagnostic visit included.
How much is an HVAC tune-up?
$99 per system. One tune-up covers one furnace, heat pump, air conditioner, boiler or ductless system, so a house with a furnace and an AC books one each season. Comfort+ members get both seasonal visits included.
How often should HVAC be serviced?
Twice a year in a house with heat and air: the heating in the fall, the cooling in the spring. A heat pump does both jobs, so it gets both visits. That is the schedule ENERGY STAR recommends too.
What’s included in HVAC service?
On a heating visit: burners, igniter, flame sensor and heat exchanger on a gas furnace, the defrost and backup heat on a heat pump, the electrical, the thermostat, and the airflow and temperature rise measured. On a cooling visit: the outdoor coil, the refrigerant pressures, the capacitor and contactor, and the drain line. Anything we flag is photographed and written down. The full checklist.
Do you have 24/7 emergency service for heating and AC?
Yes. We run 24/7 emergency service. Often same-day, and we will tell you honestly when we can get there. If you smell gas, leave the house first and call Washington Gas or 911 from outside, then call us.
Do you service every brand?
Yes: Trane, Carrier, Rheem, Lennox, Goodman, American Standard and the rest, gas and propane furnaces, heat pumps, air conditioners, hot water boilers and ductless mini splits. Brands we work on.
Do you have an HVAC service plan?
Comfort+ is $199 a year: a heating maintenance visit every fall, a cooling maintenance visit every spring, the diagnostic visit included, 15% off any service, and half of each repair bill banked toward replacing that system, up to $1,500. It also covers a dryer vent cleaning and a water heater flush with a sewer camera inspection.
Should I repair or replace my HVAC system?
Repair a young system. Past 15 years, on R-22, or facing a refrigerant leak or a failed compressor, put the repair price next to a new system’s: furnace and AC together run $8,898 to $23,000 installed. We’ll price both and say which we’d pick. From about $148 a month at 0% APR for 60 months, the whole price financed, on approved credit. How financing works
Do you do commercial HVAC service?
Yes, for offices, restaurants, churches and rental properties. Commercial HVAC.
What areas do you serve?
Fairfax, Arlington, Loudoun, Prince William, Fauquier and Stafford counties, out of our shop in Chantilly and our office in Ashburn.
Heat or air acting up
Call now, or tell us
what it’s doing
Call, or send the form at the top and the office calls or texts you back to set a time. Every repair is priced in writing before anything is replaced.
SwiftPro Heating, Cooling & Plumbing
4230 Lafayette Center Dr N, Chantilly, VA 20151
44679 Endicott Dr, Suite 211, Ashburn, VA 20147
Virginia Class A contractor license #2705192276
Prices are SwiftPro’s own in Northern Virginia, from our price book; yours is written down before any work starts. Tune-ups and checks are per system. Trane, Rheem, Carrier and the other brands named are trademarks of their owners.