AC Repair Washington DC: $110 to $650 + Permits (2026)

DC rows are ConsumerAffairs' May 2026 Washington, DC figures; national rows are marked.

Do this now: AC quit on a hot DC day

1. Check that the thermostat is set to cool and below room temperature.
2. Check the breakers for the indoor air handler and the outdoor unit.
3. Look at the air filter and replace it if it is clogged.
4. If you see ice on the lines or the indoor coil, switch the system off and call; ask the technician before restarting it.
5. Burning smell from the unit? Turn it off at the breaker from a dry spot and call 911 if there is smoke.

Is it an emergency? DC's 40 days over 90 F

A dead AC is urgent in Washington, which averages 40.0 days a year at or above 90 F at Reagan National, NOAA's 1991 to 2020 normals show. Call the same day if the house is heating up with an older adult, a baby or someone sick at home, or if the unit smells of burning. A system that cools but is noisy, or short-cycles on mild days, can wait for a weekday visit.

AC repair prices in DC compared with national

Here is how DC's published prices compare with national ones. ConsumerAffairs puts a capacitor in DC at $290 to $580 and a contactor at $290 to $655; nationally, HomeAdvisor's 2026 average for any AC repair is $417, with most jobs $172 to $664, and HomeGuide's range is $150 to $650. The big jobs are the refrigerant leak repair and recharge, $600 to $1,600 in DC, and a compressor at $1,200 to $2,800 nationally in HomeGuide's guide. When a repair nears those numbers, price a replacement too; see AC replacement cost.

Common AC problems in DC homes

• Outdoor unit hums but the fan does not spin: often a capacitor or condenser fan motor ($365 to $1,015 in DC).
• Nothing outside runs at all: a tripped breaker, the contactor or the thermostat.
• Runs all day but the house stays warm: a dirty filter, a refrigerant leak or an undersized unit; see AC not cooling.
• Water around the indoor unit: a clogged condensate drain; shut the system off to protect ceilings below.

Do you need a permit for AC work in DC?

A replacement needs one: the DC Department of Buildings lists new and replacement HVAC equipment as permit work, and only licensed DC contractors for the trade may apply. DOB's fee schedule shows $65 for the first residential central AC up to 5 tons and $46 for an instant permit on AC up to 10 tons, plus a 10% enhanced fee. Simple part swaps are repairs; ask the contractor which you are buying.

Repair or replace: DCSEU heat pump rebates

If the AC is old enough to replace, a heat pump also replaces the heating side, and DCSEU pays for it: $1,000 or $1,500 when it replaces electric heat, $4,000 or $5,000 when it replaces gas, and a $2,000 heavy-up rebate when replacing gas or oil, for equipment installed after October 1, 2026. The rebates require a DOB permit. Income-eligible homes can get cooling system repair or replacement through DOEE's Weatherization Assistance Program (202-299-3316), and DCSEU's Affordable Home Electrification program installs heat pumps at no cost for qualifying single-family households. National prices: heat pump installation cost.

Local rules, programs, contacts and climate for Washington, DC, from the official, utility, Census and NOAA pages listed under Sources.

Questions to ask a DC AC repair company

1. What is your diagnostic fee? ConsumerAffairs lists $110 to $220 in DC.
2. Which part failed, and can I see it?
3. If it is a refrigerant leak, will you find and fix the leak or only recharge it?
4. What is your DC license number, and will you pull the permit if the unit is replaced?
5. Can I get the price in writing before work starts?

Heating and all other HVAC topics are on HVAC repair in Washington, DC. Compare AC repair in New York City and AC repair in Chicago. The national AC repair guide prices every part, and home repair costs compares trades.