Petworth's housing stock tells you a lot about why the AC quits when it does. These 1910s-1930s Wardman rowhouses and Craftsman bungalows off Georgia Avenue were built long before central air, so the cooling systems were added later — and many of those add-ons are now hitting 15 to 20 years old all at once. When a Petworth home loses cooling in a July heat wave, it's usually one of a handful of things we see again and again: a frozen evaporator coil from low refrigerant or restricted airflow, a failed run capacitor that won't kick the compressor on, a clogged condensate drain backing up in a tight basement, or an outdoor condenser that simply went dark. We carry the common parts on the truck, so most diagnoses end with the AC running the same visit.
The brick-and-plaster construction here holds heat hard through DC's humid stretches, which means a Petworth system that's even slightly undersized or low on charge struggles in a way newer-construction homes don't. We diagnose the actual fault before quoting — our flat-rate diagnostic runs $75-200 and is often credited toward the repair, with most repairs landing between $150 and $450. If your unit is at the back end of its life and the repair money no longer makes sense, we'll tell you plainly and walk through retrofit or duct-sealing options rather than selling you a patch on a system that's done. Every visit comes from a licensed and insured DC technician, backed by our satisfaction guarantee.
Petworth note: Many Petworth rowhouses run their air handler and condensate line through a narrow, finished basement, and the original ductwork was often squeezed into existing chases — so a cooling complaint here is frequently an airflow or drain problem, not a dead compressor. We check the duct path and drain pan first before assuming the worst.
Common AC Repair Issues We Fix in Petworth
- AC not cooling or blowing warm air on the hottest days
- Frozen evaporator coil from dirty filters, low refrigerant, or blocked airflow
- Refrigerant (R-410A / R-22) leaks — hissing or oily residue near the coils
- Clogged condensate drain causing water leaks and high humidity
- Failed capacitor or contactor (compressor hums but won’t start)
- Short-cycling or uneven cooling between floors in row houses
What's Included
- Full system diagnostic to find the real root cause, not just the symptom
- Capacitor, contactor, and relay testing and replacement
- Refrigerant leak detection and recharge for R-410A and legacy systems
- Frozen coil thaw-out and airflow correction
- Condensate drain clearing and overflow safety checks
- Condenser fan motor, compressor, and control board repairs
- Upfront flat-rate pricing reviewed before any work starts
Explore our full AC Repair service, or see all HVAC services in Petworth.
What It Costs
In Washington, DC a diagnostic visit typically runs $75 to $200, and we often credit it toward the repair when you move forward with us. Most repairs land between $150 and $450, with minor fixes starting around $89; a failed capacitor is usually $150 to $300, a refrigerant recharge roughly $218 to $545 depending on the leak and charge, and a full compressor replacement $1,200 to $2,800. Every job gets an upfront flat-rate quote first — call us for a free estimate before you commit to anything.