How much does it cost to replace a furnace in Washington, DC?
Furnace replacement in Washington, DC typically runs $3,800–$7,500 installed for a standard-efficiency gas furnace, and $6,000–$10,500 for high-efficiency condensing models. The quote should name the efficiency (AFUE), the warranty, and whether ductwork or venting changes are included — those are where cheap quotes grow.
What you can check yourself
- Apply the age test: a furnace 18–20+ years old with a major failure (heat exchanger, blower) is usually a replace, not a repair.
- Ask for the AFUE rating in every quote and compare like-for-like — an 80% and a 96% furnace aren't the same product.
- Ask about utility rebates and federal tax credits for high-efficiency models; good installers itemize them.
- Get the heat-exchanger verdict in writing if safety is cited — a cracked exchanger is a true shut-it-down finding, and you deserve the evidence.
Typical cost
Typical installed in Washington, DC: standard gas furnace $3,800–$7,500; high-efficiency $6,000–$10,500. A cracked heat exchanger on an out-of-warranty furnace almost always tips the math to replacement.
When to call a pro
If any tech red-tags the furnace for a cracked heat exchanger, don't run it 'one more night' — carbon monoxide is the risk. Get the second quote fast, but keep it off.
HVAC pros in Washington, DC
- Air Masters Heating & Air Conditioning · 14001-C Saint Germain Dr Ste 274, Centreville, VA · 7038307550
- Michael & Son Services Centreville · 14631 Lee Highway Ste 210, Centreville, VA · 5716772665
- Rescue Heating and Air Conditioning · 10000 Lomond Dr, Manassas, VA · +17033303033
- Heating Repair Manassas · 8668 Madera Ct, Manassas Park, VA · (833) 368-2665
- Duvall Plumbing & Heat · 8103 Centreville Rd # B, Manassas, VA · +17033688746
- VANESSA SERVICE · 7223 Centreville Rd, MEChanical, Manassas, VA · 5712210202
- Trivett Mechanical Inc. · 8111 Spruce St, Manassas, VA · 7033355407
- Ariana Appliance AC and Heat, LLC · 8119 Rainwater Circle, MANASSAS, VA · 7037863851
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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.