The independent heating and cooling company across Hampton Roads and coastal Virginia

AC Installation in Fairfax, VA — Book a Visit Today

Once a system needs a major part every summer, replacement usually costs less over the next few years than another round of patches. We handle AC installation in Fairfax for homes where the old unit is past helping, where an addition left one end of the house warm, or where the existing equipment was oversized and short cycles humidity right back into the rooms. We measure the house rather than matching whatever sticker is on the old cabinet, and we look at return sizing while we are there. Tell us which rooms disappoint you and we will size around that. Call or send the form.

Call (888) 381-2953

A real person answers
Open 7 days
Written quote before work starts

Taking calls until 5:00 PM ET

AC Installation technician working in Fairfax, VA

We repair all major brandsCarrier Trane Lennox Goodman Rheem York American Standard Bryant

AC Installation technician in Fairfax, VA

Common AC installation faults in Fairfax homes

My AC is 15 years old and the repair bill keeps climbing Compressor and coil wear at end of service life
One room never cools no matter what I set the thermostat to Duct sizing, return air shortage or an addition with no supply
The outdoor unit is rusted through at the bottom Coastal salt air corrosion on cabinet and condenser coil
It runs all day and the house still feels damp and sticky Oversized equipment short-cycling without pulling humidity
We finished a garage or sunroom and there is no ductwork out there Zone with no distribution, a ductless mini-split candidate

Whether you call it AC installation, air conditioner installation or AC replacement, the work is identical and so is the quote you approve first.

Fairfax coverage

From Fairfax we also cover Vienna, Annandale, Burke, Centreville, Chantilly, Oakton, Falls Church and Springfield.

AC Installation jobs we take in Fairfax

AC Replacement

Other repairs we do in Fairfax

AC Installation in cities near Fairfax

AC installation across the region → · Every system we fix in Fairfax →

Guides & troubleshooting

How we compare to other HVAC companies in Fairfax

	Temple Heating & Air	Big-box repair chains	Handyman listings
Written quote before any work	✓	✕	✕
Live answer seven days a week	✓	✕	✓
Every major brand, gas or electric	✓	✓	✕
Independent, no manufacturer quotas	✓	✕	✓
Local techs who know the housing stock	✓	✕	✓

Call (888) 381-2953

What every visit includes

The quote comes first, in writing

Covering 147 cities across Washington DC, Delaware, Maryland and 5 more.

Phones answered by people

Open 7 days, 8:00 AM to 5:00 PM ET.

All major brands serviced

Carrier, Trane, Lennox, Goodman and more. We are not an authorized dealer for any of them.

AC Installation in Fairfax — quick answers

How do you decide what size AC my house needs?

We measure the house rather than match the old nameplate. Square footage, insulation, window area, ceiling height, duct capacity and orientation all feed the load calculation. Oversized equipment cools fast and leaves the air damp, which is the complaint we hear most in humid months.

Can I keep my existing ductwork with a new system?

Often yes, but we test it first. We check duct sizing, leakage at joints, return air capacity and static pressure. If the ducts cannot move the air the new system expects, we tell you what needs sealing or resizing before installation day.

How long does an AC replacement take?

A straight changeout of an existing central system is usually a one-day job. Adding line sets, correcting duct problems, moving the condenser pad or converting to a different configuration can push it into a second day. We give you the timeline before we start.

Is a ductless mini-split worth it for one hot room?

For an addition, converted garage, attic room or sunroom with no ductwork, a ductless mini-split is usually the cleanest fix. It gives that space its own thermostat and avoids tearing up finished walls to run duct branches through the house.

How soon can you get to my house in Fairfax?

Call us and we will give you the first opening we have, and we prioritise no-cooling and no-heat calls during heat waves and cold snaps. Summer afternoons and the first hard freeze of the season are our busiest windows in Fairfax, so a morning call usually gets you seen sooner. If you have a gas smell, leave the house first, call 911 or the gas utility, then call us.

How it works

Step 1
Tell us the symptom
Call or fill in the quote form. We ask what changed, when it started, and what the thermostat reads against the actual room temperature. That short conversation tells us what parts to load on the truck.
Step 2
We diagnose on site
A technician checks the thermostat, the electrical side, airflow through the filter and coil, refrigerant behaviour and the outdoor unit. You get a plain explanation of what failed and why, before any work starts.
Step 3
Repair and verify
We make the repair, then run the system through a full cycle and measure temperatures at the supply and return. If something upstream caused the failure, we tell you so it does not repeat.

Call (888) 381-2953

A real person answers
Open 7 days
Written quote before work starts

Why homeowners call us

We know salt airCoastal homes lose condenser coils to salt corrosion years before inland systems do. We look for fin damage and pitted line sets on every visit, because a clean-looking unit can still be shedding capacity from the outside in.
Humidity is part of the jobHurricane-season air loads a system in ways a temperature reading will not show. If your house feels clammy at 74 degrees, we look at run times, airflow and drainage rather than just adding refrigerant and leaving.
Crawlspace realitiesHigh water tables mean wet ground under ductwork, rusted plenums and condensate lines with nowhere good to drain. We check what is happening under the floor, since that is often where comfort problems actually begin.
Straight answersWe tell you what failed, what it will take to fix, and whether a repair makes sense on an older system. No pressure to replace something that has honest years left in it, and no vague diagnosis.
All major brands, gas & electricIndependent service on Carrier, Trane, Lennox, Goodman, York and the rest.
Straight answersWhen a replacement beats a repair, we tell you, sometimes before we roll a truck.