Capitol Hill homes are some of the oldest in the District, and their heating reflects it. Behind the brick facades near Eastern Market and Lincoln Park, you'll find everything from cast-iron radiators fed by an aging boiler to forced-air furnaces wedged into a converted basement or a tight upstairs closet during a renovation. When the heat fails on a 20-degree January night, the cause is rarely simple — a dirty flame sensor that trips the burner off after seconds, a cracked heat exchanger that turns into a carbon-monoxide hazard, a seized blower motor, or a system that short-cycles because it was never sized right for a deep, narrow Victorian floor plan. Our DC-licensed technicians diagnose the actual fault instead of guessing, and we carry the igniters, sensors, and control parts that the furnaces in these houses most often need.
Because so many Hill rowhouses sit in a historic district, a heating repair here often runs up against constraints you won't find in newer construction: original radiators that can't simply be swapped, flue and venting paths shared with a century-old chimney, and basements where a modern high-efficiency furnace has to coexist with knob-and-tube remnants or a retrofitted mini-split. We work within those realities. Whether you've got a single failed furnace, a hot-water boiler that won't fire, or a mini-split heat pump struggling in a back addition, we'll get the system safe and warm again — and tell you plainly whether it's a $200 fix or something bigger. Every repair is quoted at a flat rate before we start, and it's backed by our satisfaction guarantee.
Capitol Hill note: Many Capitol Hill furnaces and boilers vent through original chimneys and tight basement flues, so a no-heat call here often turns up a venting or heat-exchanger issue that's also a safety concern — we test for carbon monoxide and check draft before we ever call a furnace "fixed."
Common Furnace Repair Issues We Fix in Capitol Hill
- 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 Capitol Hill.
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.