How much does it cost to replace an AC system in Washington, DC?
Full AC system replacement in Washington, DC typically runs $6,500–$12,000 installed for a standard-efficiency system, including the outdoor unit, indoor coil, and labor. High-efficiency systems run $10,000–$16,000 but can cut cooling bills 20–40%. Quotes vary mostly on sizing and ductwork condition — get the load calculation, not just a tonnage guess.
What you can check yourself
- Ask each bidder for their load calculation (Manual J) — a quote without one is a guess.
- Compare like-for-like efficiency (SEER2 rating) across quotes.
- Ask about utility rebates and federal tax credits in the quote — good installers itemize them.
Typical cost
Typical installed range in Washington, DC: $6,500–$12,000 standard; $10,000–$16,000 high-efficiency. Ductwork replacement, if needed, adds $2,000–$5,000.
When to call a pro
This is a get-three-quotes job. The cheapest bid without a load calculation usually becomes the most expensive system you own.
HVAC pros in Washington, DC
- Ubuntu Air Duct Cleaning & Service · 1101 14th St NW Ste 210, Washington, DC · +12407905501
- Nhr Ac & Heat A Ductless Mini Split Boutique · 1300 I St NW, Washington, DC · +12026702779
- Cooling Tower · 1300 Pennsylvania Ave NW, Washington, DC · +18448884468
- A1a Complete Ac Services · 1432 U St NW, Washington, DC · +12026524506
- AC Repair · 2015 14th St NW, Washington, DC · 2029858885
- Riley Heat And Air · 906 I St NW, Washington, DC · 12028880737
- DC HVAC · 1126 11th St NW #203, Washington, DC · 2028043697
- Fresh Air Duct Services · 1310 Wisconsin Ave NW, Washington, DC · +18772516344
Get free quotes from Washington, DC pros →
Data by Servik — verified local pros from official license records and public sources. Cost figures are typical ranges, not quotes; a pro's written estimate is the real number.