Full no-heat diagnostic
Breaker, thermostat call, airflow, ignition sequence, flame sensor, gas valve, blower motor, and heat exchanger inspection. We meter components rather than guessing, and we tell you the actual failed part in plain language.
Licensed
Licensed & Bonded
Fully Insured
Insured & Bonded
24/7 Emergency
Same-Day Response
Warranty Backed
22+ Years Trusted in Fairfax
What a heating repair visit covers
Every heating repair call includes a full diagnostic, a flat repair price, and a tested system before we leave. Parts and labor on the failed component are included in the quoted number. If we find a second issue, we price it separately and you decide. No hidden add-ons, no surprise labor.
Flat repair price
You get one number for the repair before work starts. The diagnostic fee is credited toward it. Typical 2026 repairs run $180 to $650, and the price does not change because a fastener was seized or the unit was hard to reach.
Parts and labor on the failed component
Igniters, flame sensors, capacitors, contactors, blower motors, thermostats, and control boards are stocked on the truck. The quoted price covers the part and the labor to install and test it.
Temperature rise verification
After the repair we run a full heating cycle and measure temperature rise at the supply plenum against the data plate spec. If it is out of range, we keep working. We do not leave until the system holds a clean cycle.
Filter and condensate check
We pull the air filter, check the PVC condensate line for clogs, and confirm the drain is clear. A restricted filter or blocked drain causes repeat no-heat and high-limit trips, so we catch it on the repair visit.
What heating repair Fairfax VA actually involves
Heating repair Fairfax VA is the diagnostic and mechanical work that restores a furnace, heat pump, or ductless system to safe, reliable operation. A technician starts with a multimeter and clamp meter at the service panel, confirms the thermostat is calling for heat, then works through the ignition sequence: igniter, gas valve, flame sensor, blower motor, and limit switches. Most no-heat calls trace back to a failed igniter, a dirty flame sensor, a tripped breaker, or a clogged air filter choking airflow. We test each component, replace only what failed, and verify temperature rise at the supply plenum before we leave.
Fairfax homes take a beating from swing weather. A 55-degree November afternoon can drop to 25 by midnight, and that rapid cycling cracks igniters and stresses heat pump reversing valves. Older Fairfax County houses with original 1990s furnaces and undersized returns are the most common no-heat calls we run. If you are searching for heating repair near me in Fairfax VA same day, we stock the parts for Carrier, Trane, Lennox, Goodman, Rheem, York, Bryant, and American Standard equipment so the first visit is usually the only visit.
What to expect on a repair call
Five steps, no mystery. Here is exactly how a heating repair call runs from the moment you dial to the moment the house is warm again.
01
Schedule
Call or book online — a real human picks up and confirms a 2-hour arrival window.
02
Diagnose
Licensed tech inspects on-site, then walks you through the cause and your options.
03
Fix
The job is completed to code and done right the first time — no shortcuts, no surprises.
04
Guarantee
Every job backed by a written workmanship warranty — and we stand behind it.
Tools and methods we bring to the job
Tools & Equipment
Multimeter and clamp meter
Used to test voltage at the igniter, gas valve, and blower motor, and to measure amp draw on the blower. This is how we confirm a failed component instead of guessing at it.
Manifold gauge set
Measures refrigerant pressures on heat pumps and mini-splits to confirm charge and diagnose reversing valve and defrost issues. Essential on any heat pump no-heat call.
Refrigerant recovery machine
Recovers R-410A or R-32 before any sealed-system repair, per EPA Section 608 rules. We do not vent refrigerant, ever.
Vacuum pump
Pulls a deep vacuum on any system we open, so moisture and air do not contaminate the charge after a repair. Skipping this step is why some repairs fail within a season.
Psychrometer
Measures temperature and humidity to calculate airflow and verify the system is moving the right volume of air. Critical on short-cycling and limit-trip calls.
Combustion and gas detection tools
Check for gas leaks and verify the burner is lighting and burning cleanly. Any gas smell on a no-heat call gets this check before anything else.
Methods & Standards
ACCA quality standards
We follow ACCA procedures for airflow and temperature rise measurement on every repair. That means static pressure and supply plenum readings, not a hand on the register. It is how we catch undersized returns and duct restrictions that cause repeat failures.
NATE-certified diagnostics
Our technicians are NATE certified, which means tested competency on furnaces, heat pumps, and airflow. On a no-heat call that shows up as a structured diagnostic sequence rather than parts swapping until something works.
EPA Section 608 refrigerant handling
All sealed-system work follows EPA Section 608 practice: recover, repair, evacuate, recharge by weight. This protects your compressor and keeps the repair warrantied.
Virginia code-correct repair
We work under a Virginia HVAC license and keep repairs code-correct, from gas piping and flue connections to electrical disconnects. When a repair touches a safety system, it gets done to code, not to the fastest shortcut.
When Fairfax homeowners call us for heat
01
Furnace dies on the first hard freeze of the season, usually a November or January night.
What we do: We run 24/7 through cold snaps and hold same-day slots for no-heat calls. A tech triages on the phone, arrives with igniters, sensors, and motors on the truck, and diagnoses on the first visit.
→ Heat restored the same day in most cases, typically within three hours of arrival, with a flat price you approved before work started.
02
A heat pump runs all night but the house sits at 62 degrees and the outdoor unit is iced over.
What we do: We diagnose the defrost cycle, reversing valve, and refrigerant charge. If the board or charge is the issue, we repair it on site and confirm the system switches to heating mode correctly.
→ The heat pump returns to full heating output, the outdoor coil stops icing, and your electric bill stops climbing from a system running nonstop.
03
You are selling a Fairfax County home and the buyer's inspection flags the furnace.
What we do: We inspect the heat exchanger, ignition system, and airflow, then document what is a real safety issue and what is normal wear. If a repair is needed, we schedule it around the closing timeline.
→ A clear written finding for the buyer, any needed repair completed, and a heating system that passes reinspection without delaying the sale.
04
A mini-split in a converted attic or addition stops heating while the main system runs fine.
What we do: We service Mitsubishi Electric and Daikin heads, clean the coils and blower wheel, check charge, and repair control boards. These systems fail differently than ducted furnaces, so we diagnose them on their own terms.
→ The addition gets heat again, and the main system stops overworking to compensate for the cold zone.
How heating repair runs in Fairfax
Fairfax sits in a swing climate. October afternoons can hit 70, and by the first week of November you are running heat at night. That rapid cycling is hard on igniters, flame sensors, and heat pump reversing valves, and it is why our fall and early-winter no-heat calls spike. The housing stock matters too. Neighborhoods inside the City of Fairfax and older parts of Annandale and Falls Church still have 1980s and 1990s furnaces with undersized returns, which causes short cycling and limit trips. Newer builds in Chantilly and Centreville lean on heat pumps and dual-fuel systems that fail differently. We work under a Virginia HVAC license and keep every repair code-correct, including gas piping, flue connections, and electrical disconnects. If you need heater repair service in Fairfax, Virginia, we stock the parts for the brands that dominate local homes, so the first visit is usually the only visit. We cover the 22030, 22031, and 22037 ZIP codes daily and run scheduled work out to Fredericksburg.
Neighborhoods We Serve
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City of Fairfax
Older housing stock with 1980s and 1990s gas furnaces. Undersized returns are common, so short cycling and limit trips show up often on no-heat calls.
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Vienna
Mix of original furnaces and newer heat pumps. We see a lot of dual-fuel setups here that need the defrost board and charge checked together.
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Chantilly
Newer construction leaning on heat pumps and mini-splits. Reversing valve and refrigerant charge issues are more common than igniter failures.
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Annandale
Aging ductwork and equipment. We frequently find clogged condensate lines and dirty flame sensors on the first cold snap of the year.
Local Conditions We Plan For
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Rapid fall temperature swings
A 40-degree overnight drop forces the furnace into long first cycles that crack weak igniters. We see a wave of no-heat calls in the first two weeks of November every year.
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Older homes with undersized return ducts
Restricted return air drives up temperature rise and trips the high limit. We measure static pressure and correct airflow rather than replacing parts that are still good.
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Heat pump heavy newer neighborhoods
Defrost boards, reversing valves, and refrigerant charge become the common failures instead of igniters. We carry R-410A and R-32 recovery and charging equipment for these calls.
No-heat furnace in Vienna, fixed same day
Heating problems we fix across Fairfax County
Most no-heat calls fall into a handful of failure patterns. Here are the ones we see most in Fairfax, what happens if you let them ride, and how we fix them.
Problem
Furnace not igniting, blower runs cold
The house loses heat fast, and repeated ignition attempts can flood the burner area with gas before the safety lockout trips. You are cold and the risk goes up the longer it runs.
Our Fix
We meter the igniter and flame sensor, check the gas valve and inducer, and replace the failed part. Most of these are a $180 to $320 igniter or sensor repair, done the same day with the part already on the truck.
Problem
Heat pump blowing cold air in heating mode
The system runs constantly without heating, which spikes your electric bill and can ice the outdoor coil. Left alone, it can damage the compressor.
Our Fix
We check the reversing valve, defrost board, and refrigerant charge with a manifold gauge set and recovery machine. Common fixes are a defrost board, a charge adjustment, or a reversing valve, and we handle R-410A and R-32 systems.
Problem
Furnace short cycling and tripping the limit
Short cycles wear out the igniter and blower motor early and leave rooms unevenly heated. It usually points to restricted airflow, not a failing furnace.
Our Fix
We measure static pressure and temperature rise, then check the filter, return sizing, and evaporator coil. In Fairfax, undersized returns in older homes are a frequent cause. We correct airflow and verify the limit no longer trips.
Problem
Blower motor failure or loud bearing noise
A failing blower motor stops moving heat through the house and can overheat the heat exchanger. Grinding or squealing means the bearings are already gone.
Our Fix
We confirm the motor with a clamp meter, check the capacitor and control board, and replace the motor. Most blower motor replacements take two to three hours and restore full airflow across the whole house.
Why Fairfax homeowners call us first
A no-heat call is a same-day problem, not a next-week problem. Here is what you get when you book heating system repair Fairfax VA with us.
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Same-day heat restored
We hold same-day slots for no-heat calls and run 24/7 through cold snaps. Most igniter, flame sensor, and capacitor failures are diagnosed and repaired in 90 to 150 minutes on site. If a part has to be ordered, we set you up with temporary heat and a firm return time.
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Upfront price before work
You get the diagnostic finding and a flat repair price before we open a toolbox. No hourly meter, no surprise line items. Typical 2026 repairs in Fairfax run $180 to $650 depending on the failed component, and we tell you which number applies before we start.
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Parts on the truck
Our vans carry igniters, contactors, capacitors, blower motors, thermostats, and R-410A refrigerant. That means fewer second trips and less time with your family in a cold house. We stock the parts that fail most on Carrier, Trane, Goodman, and Rheem equipment.
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22 years in Fairfax County
We have been fixing heat in Fairfax since 2004. That is 22 winters of the same freeze-thaw cycling, the same older housing stock, and the same brand quirks. We know which neighborhoods have undersized returns and which furnaces are near end of life.
Licensed, certified, and local
Licensed & Certified
- NATE certification — issued by North American Technician Excellence
- EPA Section 608 certification — issued by U.S. Environmental Protection Agency
- Virginia HVAC license — issued by Virginia Department of Professional and Occupational Regulation
- OSHA safety compliance — issued by Occupational Safety and Health Administration
- ACCA quality standards — issued by Air Conditioning Contractors of America
Verified Reviews
Google ★★★★★4.9
Called at 7 a.m. with no heat and had a tech at the house by 10. He found a bad igniter, had the part on the truck, and we had heat by noon. Flat price, no surprises. This is the second time we have used them and both visits were the same.
Yelp ★★★★★4.8
They diagnosed our heat pump defrost issue that two other companies missed. Showed me the readings, explained the fix, and the price matched the quote. The house heats properly now and the outdoor unit stopped icing over.
BBB ★★★★★4.9
Honest work. They could have sold us a new furnace but replaced a blower motor instead and showed me the old part. Also pointed out our return was undersized, which explained the short cycling. Fair pricing and clean work.
22 years of Fairfax heating work
Fairfax HVAC Experts has repaired heat in Fairfax County since 2004. Our technicians hold NATE certification and EPA Section 608 certification, and we work under a Virginia HVAC license with full OSHA safety compliance. We follow ACCA quality standards on every install and repair, which means airflow and temperature rise get measured, not guessed. Across 22 winters we have worked on every major brand sold in Northern Virginia, from 1990s Bryant furnaces in Annandale to modern Daikin and Mitsubishi Electric heat pumps in new Chantilly builds. That range matters when your system is an odd size or a discontinued model.
- NATE-certified technicians on every heating repair call, not just installs.
- EPA Section 608 certification for refrigerant handling on heat pumps and mini-splits.
- Virginia HVAC license held and current, with OSHA safety compliance on every job.
- 22 years serving Fairfax County, from 2004 through the 2026 heating season.
- Factory parts for Carrier, Trane, Lennox, Goodman, Rheem, York, and Daikin systems.
What Fairfax neighbors say
Real experiences from customers who chose our Heating Repair services.
“Our furnace quit on a Sunday night in January and the house was down to 58 degrees by morning. They had a tech out before noon, found a failed igniter, and had heat back in about an hour. Price was exactly what they quoted on the phone. No upsell, no drama. I have their number saved now.”
D
Dana R.
Homeowner, Vienna
“We had two other companies tell us we needed a whole new system. Fairfax HVAC Experts metered the blower motor, showed me the reading, and replaced just the motor for a fraction of that. The tech also pointed out our return was undersized, which explained the short cycling. Honest work.”
M
Marcus T.
Homeowner, Burke
“Our heat pump was blowing cold air in heating mode. They diagnosed a bad defrost board, had the part on the truck, and fixed it the same visit. The tech walked me through the filter schedule and the condensate line so I could keep it running. Clean, fast, and they cleaned up after themselves.”
P
Priya S.
Homeowner, Chantilly
Heating repair questions Fairfax homeowners ask
Real answers to the questions we hear most often from local homeowners and property managers.
How much does heating repair cost in Fairfax VA?
Most heating repairs in Fairfax run $180 to $650 in 2026, with the average no-heat call landing near $320. Igniters and flame sensors sit at the low end; blower motors, control boards, and inducer assemblies push toward the top. Heat pump refrigerant leaks and compressor work cost more. You get the flat price before we start, and the diagnostic fee is credited toward the repair.
Why is my heat not working in Fairfax VA?
The four most common causes we find are a failed igniter, a dirty flame sensor, a tripped breaker, and a clogged air filter choking airflow. Less often it is a bad thermostat, a failed blower motor, or a cracked heat exchanger. If the blower runs but you get cold air, the problem is usually in the ignition or gas side, not the fan.
Who repairs heating systems near me in Fairfax VA?
Fairfax HVAC Experts repairs furnaces, heat pumps, and ductless mini-splits across Fairfax County, including Falls Church, Vienna, Oakton, Burke, Annandale, and Springfield. We have run heating calls since 2004, hold NATE and EPA Section 608 certification, and stock parts for Carrier, Trane, Lennox, Goodman, Rheem, York, and Daikin equipment.
How long does heating repair take in Fairfax VA?
A standard no-heat repair takes 90 minutes to three hours on site. Igniter and flame sensor swaps are often done in under 90 minutes. Blower motor or control board replacements run two to three hours. If a part has to be ordered, we set up temporary heat and give you a firm return window, usually the next business day.
Other services Fairfax homeowners pair with heating repair
Emergency HVAC Repair
When your furnace dies at 2 a.m. in January, this is the call. We run emergency heating repair Fairfax VA 24/7, with overnight techs and parts on the truck for no-heat situations that cannot wait until morning.
View Emergency HVAC RepairAC Repair
The same blower motor, capacitor, and thermostat that fail in heating season fail in cooling season. If we replaced a blower motor in December, we can service the AC side in July without starting from scratch on your system history.
View AC RepairAC Installation
If your furnace is sound but the AC side is done, we can pair a new condenser with your existing air handler. We size the match to your ductwork and existing heating equipment so both systems share airflow correctly.
View AC InstallationAC Replacement
When a heat pump fails in both modes, replacement often beats a second repair. We quote the full system, including the air handler and line set, so you are not paying twice for the same labor within a year.
View AC ReplacementFurnace Repair
This is the core of our heating work. Igniters, flame sensors, gas valves, inducer motors, and heat exchanger inspections on gas furnaces across Fairfax County, with flat pricing and same-day slots through the winter.
View Furnace RepairFurnace Installation
When a furnace is past 18 years or the heat exchanger is cracked, replacement is the safe call. We size the new unit to your home's actual load, not the old nameplate, and pull the Virginia permit.
View Furnace InstallationCall Fairfax HVAC Experts
Reach us at +1 (571) 760-4715 any time, day or night. Our office is open Monday through Friday from 8 a.m. to 6 p.m., and emergency dispatch runs 24/7. Most calls placed before noon get a same-day visit.
Fairfax HVAC Experts
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Phone
+15717604715 -
Address
14500 Chronical Dr, Fairfax, VA 22030
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Hours
Mon–Fri: 7AM – 7PM
Sat: 8AM – 4PM
Sun: Emergency Only
24/7 Emergency Available