HVAC System Replacement Cost Across the Washington-Arlington-Alexandria Metro
15 reports from 3 cities across the metro · updated Apr 14, 2026
HVAC system replacement in the Washington-Arlington-Alexandria metro area ranges from $6,000 to $25,000, with most homeowners paying around $10,500. Half of all replacements cost between $8,600 and $12,500. These figures are based on 15 completed projects in the region.
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Where most metro reports cluster
15 reports, bucketed. Highlighted bars are the middle 50% of reports across the metro.
Recent reports across the metro
A few of the most recent homeowner reports that feed into the rollup above. Click a city to see every report from there.
Got a quote of $12k for HVAC replacement and $3500 for a water heater, totaling $15,500.
Got an estimate for a complete HVAC replacement without duct work for a small three-level townhouse. The total cost was $10K.
Purchased a new HVAC system for a 1300 sq foot townhome and paid in November 2021.
Purchased a mid-level Lennox HVAC system for a 2100sq ft townhouse. The old HVAC was 15 years old while the AC was only 8 years old, so did not replace everything.
Every number above comes from a verified homeowner report. Add yours to help keep this current.
How each city in the metro compares
Every city with at least 2 reports is listed below. Click through for the actual homeowner reports.
| City | Typical range | Median | Reports |
|---|---|---|---|
| Arlington, VA | $8,500–$12,500 | $11,000 | 7 |
| Washington, DC | $10,375–$14,750 | $11,250 | 4 |
| Fairfax, VA Early data | $7,000–$8,600 | $7,200 | 3 |
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