10 AC Replacement Contractors in Ashburn, VA

4.7 avg rating
1,338 total reviews4 offer 24/7 service
Need emergency service? 11 HVAC providers in Ashburn offer 24/7 availability

Top-Rated AC Replacement Contractors in Ashburn

#1

One Hour

4.6(562 reviews)

Two negative reviews cite markup percentages for parts and labor charges, with specific criticism directed at capacitor replacement pricing and overtime rate…

21730 Red Rum Dr Suite 182, Ashburn, VA 20147
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#2

Premier Home Comfort

5.0(253 reviews)
24/7 Highly Rated

Every reviewer awarded a 5-star rating across this sample, with two specifically referencing successful same-day installations and customer education around…

22645 Upperville Heights Square, Ashburn, VA 20148
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#3

Clover Contracting: Plumbing, HVAC & Air Purification

4.9(154 reviews)
24/7 Highly Rated

Of three detailed reviews, all five-star entries report same-day or next-day service response times. Reviewers specifically name technicians (Ryan, Austin,…

44679 Endicott Dr Suite 300, Ashburn, VA 20147
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All AC Replacement Contractors (10 total)

Cube Heating & Cooling

5.0(109)
24/7 Highly Rated

Four of five featured reviews explicitly mention same-day or emergency response capability, with technician…

20803 Yeats Square, Ashburn, VA 20148
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Ridgeline Roofers

4.9(83)

Five of six reviewers specifically commend the contractor's speed, with mentions of same-day response, rapid…

21535 Wild Timber Ct, Ashburn, VA 20148
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Dulles Plumbing, Heating and Air

4.8(57)

Twelve of 53 reviews reference repeat service, indicating strong customer retention. Five-star ratings…

44675 Cape Ct # 150, Ashburn, VA 20147
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Modern Mechanical

4.1(72)

All four featured five-star reviews reference specific technicians by name, with customers praising honesty…

21730 Red Rum Dr Suite 182, Ashburn, VA 20147
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VIP General HVAC Services

5.0(24)
24/7

All eight reviewed customers awarded 5 stars, with three specifically praising technician Hector for his…

42683 Tunstall Terrace, Ashburn, VA 20147
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Trible's, Inc.

3.6(22)

4 of 22 reviewers award 5 stars and specifically commend speed/efficiency, while 5 reviewers assign 1 star…

44427 Atwater Dr #160, Ashburn, VA 20147
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United Products Distributors, Inc.

5.0(2)

Both reviewers awarded perfect 5-star ratings, with one explicitly mentioning no issues during their service…

44611 Guilford Dr Suite 160, Ashburn, VA 20147
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AC Replacement Costs in Ashburn

Replacement costs for aging systems in Ashburn. If repair cost exceeds 50% of replacement, replacement is usually more economical.

ServiceLowAverageHigh
Central AC (3-ton, basic)
$5,500$8,000$11,000
Central AC (4-ton, mid-efficiency)
$7,500$10,500$14,000
Central AC (5-ton, high-efficiency)
$9,500$12,500$16,000
Full HVAC system (AC + furnace)
$11,590$13,430$14,100
Plus ductwork replacement
If existing ducts are aged/leaking
$2,100$3,000$4,000
Repair cost threshold50% rule: if repair > 50% of replacement, replace

Prices reflect humid subtropical metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.

AC Replacement in Ashburn, VA: What to Expect

The Ashburn area sits within the broader Northern Virginia climate zone, where summers along the Potomac bring heat index values pushing past 88 degrees with the kind of humidity that makes your AC work overtime just to feel tolerable. Winters drop to a chilly 28 degrees on average, flipping the demand for heating systems once the leaves turn. That seasonal whiplash, combined with the persistent moisture in the air, means aging cooling equipment faces a beating every summer and heating coils face stress every winter, driving a steady need for AC Replacement in Ashburn. Ten contractors serve this market, collectively holding a 4.7 average rating across more than 1,300 reviews, with four of them offering round-the-clock availability for emergencies.

Pricing for a central AC replacement runs along three main tiers. A basic 3-ton system starts around $5,500 and tops out near $11,000, while a mid-efficiency 4-ton unit lands between $7,500 and $14,000. Homeowners looking at high-efficiency 5-ton equipment should budget for a range from $9,500 to $16,000. In Virginia, every legitimate HVAC contractor must carry a Class A, B, or C license with an HVA specialty from the Department of Professional and Occupational Regulation, with Class A requiring five years of experience and allowing projects over $120,000, while Classes B and C cover progressively smaller scopes.

Customer feedback points to a few standouts. Premier Home Comfort maintains a perfect 5.0 rating, with reviewers noting successful same-day installations and how technicians walked them through thermostat programming. Clover Contracting draws consistent praise for same-day or next-day response times, with customers specifically mentioning technicians Ryan, Austin, and Ricky for taking the time to explain repair options clearly. One Hour draws mixed marks, with some reviewers flagging concerns over parts markups and overtime rate structures, while others acknowledge the team's expertise.

Frequently Asked Questions

AC replacement in Ashburn runs $2,100-$16,000 depending on system size and efficiency. A 3-ton basic central AC costs $5,500-$11,000 installed, a 4-ton mid-efficiency system $7,500-$14,000, and a 5-ton high-efficiency unit $9,500-$16,000. Full HVAC replacement (AC + furnace combined) averages $11,590-$14,100.

All HVAC Contractors in Ashburn, VA

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