Logan Circle's rowhouses were built between roughly 1875 and 1900, and most still carry the imprint of that era in how they're heated — cast-iron radiators tied to a basement boiler, narrow utility chases threaded between original lath-and-plaster walls, and furnaces or air handlers tucked into spaces that were never meant to hold modern equipment. When the heat fails in one of these homes, the cause is rarely simple. We see cracked heat exchangers that put carbon monoxide into bedroom air, dirty flame sensors that trip a furnace into a frustrating on-off short-cycle, failed hot-surface igniters, and blower motors that have quietly worn out after decades of duty. Our technicians diagnose the actual fault instead of guessing, and we quote a flat rate before any wrench turns — typically $150 to $650 depending on the part and the system.
Heating a century-old home around the circle means working with what's there: original boiler-and-radiator setups that need balancing, gas furnaces retrofitted into tight rowhouse mechanical rooms, and the ductless mini-splits more owners are adding because they don't demand new ductwork. Whatever you're running, a no-heat night in a DC cold snap can't wait, which is why we answer emergency calls around the clock. We're licensed and insured, we carry the igniters, sensors, capacitors, and inducer parts that fail most often, and we back every repair with a satisfaction guarantee. Call us and we'll get a technician to your block — whether you're near the park itself or over toward 14th Street — the same day in most cases.
Logan Circle note: Logan Circle sits inside a designated historic district, so anything mounted on a visible facade — including mini-split condensers and exterior flue or intake terminations — can fall under review. We plan repairs and equipment placement with those rules in mind, favoring rear and below-grade locations and existing penetrations so your heat gets fixed without inviting a preservation problem.
Common Furnace Repair Issues We Fix in Logan Circle
- Furnace blowing cold air or producing no heat at all
- Failed igniter or dirty flame sensor (furnace starts then shuts off)
- Short-cycling — turning on and off rapidly
- Cracked heat exchanger creating a carbon monoxide danger
- Blower motor failure or weak airflow
- High-limit safety switch tripping repeatedly
What's Included
- Full diagnostic to pinpoint the exact cause of the no-heat or performance issue
- Igniter, flame sensor, and ignition system repair or replacement
- Blower motor, capacitor, and control board troubleshooting
- Limit switch, thermostat, and safety control testing
- Carbon monoxide and cracked heat exchanger safety inspection
- Repairs for short-cycling, cold-air, and frequent shutdown problems
- Upfront flat-rate quote and a satisfaction guarantee on every repair
Explore our full Furnace Repair service, or see all HVAC services in Logan Circle.
What It Costs
In Washington, DC, a furnace diagnostic typically runs about $75 to $200, and that fee tells us exactly what's wrong before any repair starts. Most furnace repairs fall between $150 and $650 depending on the failed part, whether it's a flame sensor, igniter, capacitor, or blower motor. Every job comes with a flat-rate quote up front, and we're happy to provide a free estimate before you commit, so just call to get an honest number for your situation.