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HVAC Repair Fairfax VA | Heating & Air Conditioning

Need reliable HVAC repair services in Fairfax, VA? Get help with air conditioning repairs, heating problems, furnace breakdowns, and HVAC system maintenance. Whether your AC stops cooling during summer or your heating system fails in winter, professional HVAC service can help restore comfort to your home. Find the right solution for your heating and cooling needs.

  • Licensed & Insured
  • Transparent Pricing
  • Same-Day Service
  • 24/7 Emergency
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Licensed Licensed & Bonded
Fully Insured Insured & Bonded
24/7 Emergency Same-Day Response
Warranty Backed 22+ Years Trusted in Fairfax
Contemporary building from brick with white air conditioning systems and yellow bucket in yard with fence and concrete wall in city
On the job

15+

Years Local Trade

HVAC Repair Fairfax VA You Can Actually Reach


Fairfax HVAC Experts has kept homes and small businesses comfortable since 2004. We handle AC repair, furnace installation, heat pump service, ductless mini-split work, and full HVAC maintenance across Fairfax and the surrounding county. Our trucks carry the parts that fail most often, so most repairs finish in one visit instead of two.

What separates us is simple: we answer the phone, we show up when we say we will, and we quote the price before we touch your system. Our technicians hold NATE certification and EPA Section 608 certification, and we work to ACCA quality standards on every install. From Falls Church to Burke, we know how these older Fairfax homes are ducted, and we know what fails first.

3,200+

Jobs Completed

4.9★

Google Rating

24/7

Emergency Line

HVAC Repairs Services Fairfax VA Homeowners Rely On

One call covers the whole system. Whether you need HVAC repair and installation in Fairfax VA or a seasonal tune-up before the first cold snap, we handle it with the same crew and the same upfront pricing. No subcontractors, no runaround.

A technician is repairing an air conditioning unit on a rooftop, demonstrating skilled manual work.

Emergency HVAC Repair

No heat at 2 a.m. or an AC blowing warm air on a 98-degree afternoon, we roll. Our emergency HVAC services Fairfax VA near me line stays open 24/7, and we stock capacitors, contactors, igniters, and blower motors so most after-hours calls end with cold air or heat the same night.

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Technician repairing an air conditioner unit in New Delhi workshop.

AC Repair

AC not cooling is usually a refrigerant leak, a dirty air filter, or a failed capacitor. We diagnose with a manifold gauge set and clamp meter, then repair the actual fault instead of selling you a system you don't need. Most AC repairs in Fairfax finish in two to four hours.

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Air conditioner unit mounted outdoors on a building wall, showcasing modern HVAC technology.

AC Installation

New AC installation starts with a load calculation, not a guess. We size Carrier, Trane, Lennox, and Goodman equipment to your square footage and duct layout, pull the Virginia HVAC license paperwork, and commission the system so it hits its rated efficiency from day one.

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Close-up of a wall-mounted air conditioner indoors, showcasing sleek design for modern cooling solutions.

AC Replacement

When a 15-year-old condenser finally quits, replacement beats another $900 repair. We haul the old unit, flush the copper tubing, install R-410A or R-32 refrigerant equipment, and recycle the refrigerant with a recovery machine. Most replacements are a one-day job.

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Close-up of hands adjusting a boiler system with precise instrumentation, showing maintenance work.

Furnace Repair

A furnace not igniting often means a bad igniter, a tripped breaker, or a clogged condensate drain. We test the flame sensor, gas valve, and pressure switch, then replace only the failed part. Same-day furnace repair across Fairfax County, including weekends.

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Close-up of a plumber installing a radiator pipe using specialized tools.

Furnace Installation

Furnace installation means matching BTU output to your home's real heat loss, not the old unit's label. We install Carrier, Bryant, Rheem, and American Standard furnaces, seal the plenum, and verify temperature rise before we leave. Typical install runs four to six hours.

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A technician inspects an outdoor HVAC unit for maintenance.

Heat Pump Repair

A heat pump not defrosting will ice over the outdoor coil and kill your efficiency. We check the reversing valve, defrost board, and charge, then repair it right. Heat pump repair Fairfax VA homeowners call us for most often happens in the first cold week of November.

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Technician installing or repairing a heating system in an indoor workshop setting.

Heating Repair

Heating repair covers furnaces, boilers, and heat pumps. If your system short-cycles, blows cold air, or trips the breaker, we trace it with a multimeter and psychrometer, then fix the root cause. We carry common thermostats and igniters on every truck.

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Technician repairing an air conditioner unit outdoors, wearing a facemask and using a manifold gauge.

HVAC Maintenance

HVAC maintenance near me in Fairfax VA means a real tune-up: coil cleaning, refrigerant charge check, capacitor testing, and a fresh air filter. Twice-a-year service keeps efficiency up and catches small failures before they strand you in a heat wave.

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A well-used outdoor air conditioning unit affixed to a brick wall, showcasing urban climate control.

Ductless Mini-Split Repair

Ductless mini-split repair covers Mitsubishi Electric and Daikin systems, from a clogged PVC condensate line to a failed blower motor. We clean heads, check line-set pressures, and repair zoning faults so each room holds the temperature you set.

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Why Fairfax Homeowners Call Us First

Plenty of companies will answer your call. Fewer will tell you the truth about what your system needs. Here is what you get when you hire us.

  • 22 Years in Fairfax We have worked on Fairfax heating and cooling since 2004, which means we have seen every ducting mistake and builder shortcut in the area. That history saves you diagnostic time and money on every job.
  • Certified, Licensed Technicians Every tech holds NATE certification and EPA Section 608 certification, and we work under a Virginia HVAC license with full OSHA safety compliance. You get a technician who can legally handle refrigerant and knows the code.
  • Upfront Pricing, No Surprises You get the price before we start, in writing, and it does not change because a job ran long. Call us for affordable HVAC Services Fairfax VA for homes and businesses, and we will quote the repair or install on the spot.
Air conditioning system located outside concrete shabby fence with metal barrier near industrial building from bricks and glass door

98%

Of our customers refer us within the first year.

How Our HVAC Repair Service Works

You call, we show up, we tell you what is wrong, and we fix it. No mystery, no upsell script. Here is the sequence from your first call to the final test.

01

Call or Book

Call +1 (571) 760-4715 or book online. We ask what your system is doing, how old it is, and whether you have heat or cooling right now, so the right truck and parts head your way.

02

On-Site Diagnosis

A NATE-certified technician tests the system with a multimeter, clamp meter, and psychrometer, then shows you the failed part. You get a flat-rate price before any repair begins.

03

Repair or Install

We complete the work the same visit whenever the parts are on the truck, which covers most capacitor, contactor, igniter, and blower motor failures. Installs are scheduled and finished in a day.

04

Test and Walkthrough

We run the system through a full cycle, check temperature rise or drop, confirm the condensate drain flows, and walk you through what we did. You get a written record of the work.

HVAC Problems We Fix in Fairfax

Most calls we run in Fairfax fall into a handful of patterns. If yours sounds familiar, we have seen it a hundred times and we know the fix.

01

AC running but blowing warm air in August


(Our Fix)That is usually low refrigerant from a leak or a failed capacitor. We pressure-test the system, find the leak, repair it, and recharge to the manufacturer's spec. Most of these calls are back to cold air the same afternoon.

02

Furnace clicks but never lights


(Our Fix)A furnace not igniting is typically a dirty flame sensor, a failed igniter, or a tripped breaker. We test each component, replace the failed part, and verify the burn cycle before we leave. Same-day service in most of Fairfax County.

03

Heat pump iced over in winter


(Our Fix)A heat pump not defrosting will frost the outdoor coil and stop heating. We check the defrost board, reversing valve, and refrigerant charge, then repair the fault so the system cycles correctly through the cold months.

04

Water pooling around the indoor unit


(Our Fix)A clogged condensate drain or a frozen evaporator coil is the usual cause. We clear the PVC condensate line, check the pan and float switch, and confirm drainage so you are not mopping up water again next week.

What Fairfax Neighbors Say

We have worked in this county for 22 years, and most of our calls come from repeat customers and their neighbors. Here is what a few of them told us.

“Our AC died on the hottest Saturday of the summer. They had a tech at the house in under two hours, found a failed capacitor and a slow refrigerant leak, and had us cold again by dinner. Price was exactly what they quoted on the phone.”

P

Priya R.

Homeowner, Oakton

“The furnace kept short-cycling all winter and two other companies just tried to sell me a new one. These guys tested the flame sensor, replaced the igniter, and charged me a flat rate. It has run fine since.”

M

Marcus D.

Homeowner, Burke

“We replaced a 17-year-old heat pump with a new Carrier system. The crew did a load calculation first, sealed the ductwork, and walked me through the thermostat setup. House holds temperature way better now.”

E

Elena V.

Homeowner, Vienna

“Called about a mini-split in our addition that was dripping water. They cleared the condensate line, checked the charge, and showed me the clogged filter I had missed. Fair price, no upsell.”

T

Tuan N.

Homeowner, Annandale

“Our AC quit on a Friday night and they answered the emergency line right away. Tech arrived after 10 p.m., swapped a contactor, and had the system running. I did not expect that kind of response.”

D

Denise A.

Homeowner, Springfield

“Been using them for maintenance twice a year since we moved to Chantilly. They clean the coils, check the capacitors, and change the filter. Last visit they caught a blower motor going bad before it failed.”

H

Hector M.

Homeowner, Chantilly

HVAC Service Across Fairfax and Nearby

Our trucks run out of Fairfax and cover the whole county plus the towns along the Route 50 and I-66 corridors. We serve older homes near downtown Fairfax, newer builds in Chantilly, and everything in between. If you are inside Fairfax County or just past the line, we likely cover your street.

Service Area

HVAC Coverage Across Fairfax & Fairfax County

Routine and same-week appointments for residents and businesses across Fairfax County, including the ZIP codes below.

220312203022037

HVAC Fairfax VA Questions, Answered

These are the questions we get most on the phone. If yours is not here, call us and we will give you a straight answer.

How much does HVAC service cost in Fairfax VA?
Most HVAC service calls in Fairfax run $129 to $450, depending on the part and how long the repair takes. A standard diagnostic is $129, and we waive it when you approve the repair. Full system replacements start around $5,800 and go up from there based on size and equipment.
Who is the best HVAC company in Fairfax VA?
The best HVAC company in Fairfax VA is the one that shows you the failed part, quotes a flat price, and stands behind the work. We have served Fairfax since 2004, our technicians hold NATE and EPA Section 608 certification, and we give a written estimate before any repair starts.
Does Fairfax VA have 24/7 emergency HVAC services?
Yes. We answer emergency calls 24/7, including nights, weekends, and holidays. No heat in January or no cooling in July gets priority dispatch, and we stock the parts that fail most, like capacitors, contactors, and igniters, so most emergency calls are fixed the same visit.
How do I choose an HVAC contractor in Fairfax Virginia?
Check three things: a Virginia HVAC license, NATE or EPA Section 608 certification, and whether they quote a flat price before starting. Ask if they do a load calculation on installs, because skipping it means oversized equipment and higher bills. We do all of the above on every job.
What HVAC Services Fairfax VA are available near me?
We cover emergency repair, AC repair and installation, furnace repair and installation, heat pump service, ductless mini-split repair, and seasonal maintenance. We serve Fairfax, Falls Church, Vienna, Oakton, Burke, Annandale, Fairfax Station, Centreville, Chantilly, Springfield, and Fredericksburg.

Need HVAC Fairfax VA Help Today?

Call +1 (571) 760-4715 and we will dispatch a licensed technician, often the same day. We quote the price before we start, and we stand behind the repair.

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Call 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


  • Phone

    +15717604715
  • Address

    14500 Chronical Dr, Fairfax, VA 22030

  • Hours

    Mon–Fri: 7AM – 7PM
    Sat: 8AM – 4PM
    Sun: Emergency Only
    24/7 Emergency Available

Tips, Specials, & Maintenance Reminders

Once-a-month email with seasonal tips, exclusive specials, and the kind of maintenance reminders that save you a callout.

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