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SwiftPro HVAC technician and service truck, diagnosing air conditioning system in Northern Virginia.
Delaplane, Virginia

AC repair in Delaplane.

Delaplane AC repair opens with a $99 diagnostic visit. Here the outdoor unit often cools for a propane furnace, and every repair is priced first.

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  • Prices in writing, first
  • Common parts on the truck
  • Dedicated HVAC team

5.0 stars across 1,132 reviews

One of our HVAC technicians beside an outdoor unit at a Northern Virginia home, the vans at the curb.

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

What AC repair costs in Delaplane.

The same price book as our AC repair page. The diagnostic visit is $99, and the common parts ride on the truck, so most of these get fixed on the first visit.

Run capacitor replaced

$240 to $370

Contactor replaced

$290 to $425

Condensate drain cleared

$175 to $420

Refrigerant topped up

$190 to $740

Blower wheel pulled and cleaned

$300 to $440

Refrigerant leak found and repaired

$1,850 to $2,700

or $31/mo at 0% APR for 60 months

Repair diagnostic visit

$99

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

Often same-day, and we will tell you honestly when we can get there.

With Comfort+ membership, $20 a month or $199 a year, the diagnostic visit is included, any service is 15% off, and the cooling and heating maintenance visits are part of the membership.

What’s different in Delaplane

Down at 449 feet by Goose Creek, a Delaplane condenser takes the heat, the hail and the limbs.

The village sits at about 449 feet on the valley floor, beside the USGS gauge on Goose Creek, between Lost Mountain and Little Cobbler Mountain. NOAA’s 1991 to 2020 normals from the nearest long-record station, outside Warrenton at about the same height, give an 85 degree July afternoon and roughly three weeks a year at 90 or hotter; July on the Blue Ridge crest at Mount Weather runs two and a half degrees cooler. The valley holds the heat, so a condenser here works hard from June into September.

The Census counts no natural gas heat in ZIP 20144. About half the owner homes burn propane, usually a propane furnace inside with its own air conditioner in the yard and the furnace’s blower moving the cold air. So weak cooling can start indoors, at a dusty blower wheel, a matted coil or a plugged drain, as easily as outside. Where the heat is electric, about three homes in ten, the outdoor unit is usually a heat pump carrying both seasons.

About four in ten homes here went up in the 1990s. A condenser from then would be past 25 now, so most are on their second, and one installed before 2010 likely runs R-22, which isn’t made anymore. When one of those leaks, set the repair beside a new system; our HVAC estimator prices it.

Summer storms are the other test. NOAA’s records describe gusts estimated at 80 to 90 mph across the Delaplane, Marshall and Ashville areas on June 22, 2022, laying big trees onto power lines along Cobbler Mountain Road, and golf-ball hail at Aspen Dale Winery, about two miles west-southwest, on June 2, 2019. After weather like that, check the unit before it runs a full afternoon: limbs on top, fins beaten flat, a tripped breaker. Then call us and we’ll go over the condenser, the wiring and the drain, priced before any repair.

A SwiftPro technician connecting a new Trane outdoor air conditioning unit beside a Northern Virginia house, with refrigerant tanks and the old condenser next to it

By the numbers

Delaplane houses, by the numbers

From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.

Delaplane

ZIP 20144 as a whole: every Delaplane address.

  • Median home built1986 Census
  • Built before 1980about 2 in 10 Census
  • Built since 2000about 3 in 10 Census
  • Most homes aresingle-family houses, nearly all Census
  • Heated withelectricity, about 3 in 10 Census
  • Rentedabout 2 in 10 Census

What you’d notice

What a failing AC in Delaplane usually does.

The coil’s fins look beaten flat after hail

Those thin aluminum fins are how the condenser sheds heat. Mashed flat, they choke the airflow, and the compressor works harder every hot day. Lightly bent fins comb straight; a badly beaten coil is a bigger conversation, priced in writing first.

The air coming out is warm

Usually the outdoor unit has stopped running. A hum with no fan turning is almost always the run capacitor; silence while the thermostat calls is usually the contactor.

It runs all day and never cools

That’s an airflow problem far more often than a refrigerant problem: a clogged filter, a matted coil, or a blower wheel packed with dust.

Choosing who fixes it

How to pick the best AC repair company in Delaplane.

Questions worth asking anybody who comes out, us included.

  1. Do they publish prices?

    A company that prints what a capacitor or a contactor costs has already told you the number. One that won’t say until the tech is in your driveway hasn’t.

  2. Do they measure before they sell refrigerant?

    A healthy system drops the air somewhere around 16 to 22 degrees across the indoor coil. Low refrigerant means a leak, and topping it up every summer is the expensive way to find that out.

  3. Will they tell you when it’s the end of the road?

    Some repairs aren’t worth doing on a 20-year-old system. The good answer shows you the repair price and the replacement price side by side and lets you pick.

Two SwiftPro technicians going over a work order on a tablet in front of the van fleet in Northern Virginia

Two of our crew going over a work order before the day's calls.

From our Google reviews

What our customers say.

5.0 stars across 1,132 reviews. Read them on our reviews page.

. SwiftPro was able to get a tech out same day I called with an issues and had a the same guy come back to do the repairs. Jamie Lazo was awesome and did exceptional work. Glad to have my AC unit back up and running!

Moses T., Google review, August 2025
SwiftPro team of HVAC and plumbing technicians in Chantilly, Virginia.
Some of the SwiftPro crew: the people behind these reviews.

Questions

AC repair questions from Delaplane.

Could my outdoor unit be in a flood zone?

If the house sits low near Goose Creek or Crooked Run, possibly. FEMA’s flood map shows a Zone A flood hazard area within about a thousand feet of the village’s mapped center, and flash flooding put water over Winchester Road just north of town on January 30, 2013. If water reached the unit, leave it off at the breaker until it’s checked; wet controls can short the moment it starts.

The power blinked in a storm and now the fan outside won’t spin. Why?

NOAA logged downed trees and wires causing an outage near Delaplane on September 7, 2023, and power that flickers on and off is rough on the run capacitor and the condenser fan motor. Turn the thermostat off and call: a run capacitor is $240 to $370, a condenser fan motor $1,100 to $1,500.

How much does AC repair cost in Delaplane?

The diagnostic visit is $99. The common repairs: a run capacitor $240 to $370, a contactor $290 to $425, a condensate drain cleared $175 to $420, refrigerant topped up $190 to $740. A refrigerant leak repair runs $1,850 to $2,700.

Should I repair it or replace it?

Fix the cheap parts on almost anything. Think twice about a big repair on a system over 15 years old, and about any leak on an R-22 system. The HVAC estimator prices a new system in about a minute, so you can put the two numbers side by side.

Ready when you are

Tell us what your AC is doing.

Call, or send the form at the top. The tech prices the repair from the book before starting, and if it’s the end of the road you’ll hear that first.

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

SwiftPro Heating, Cooling & Plumbing is a licensed, BBB Accredited (A rating), independently owned heating, cooling and plumbing company in Chantilly, serving Delaplane and the rest of Northern Virginia. Virginia contractor license #2705192276. 5.0 stars across 1,132 reviews on Google, Angi, Yelp, the BBB and Facebook. SwiftPro maintains a dedicated HVAC team and a dedicated plumbing team.

From SwiftPro Heating, Cooling & Plumbing in Chantilly. Housing figures are the Census Bureau’s American Community Survey, 2020 to 2024, for each place named; permit, water and sewer facts link to each office’s own page and were checked in September and October 2026.

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