Furnace Replacement Cost in Northern Virginia (2026)

A new gas furnace installation in Northern Virginia typically costs $4,500-$9,500. New installs in our region are now required to be 95% AFUE high-efficiency units, which is built into that pricing. If you replace the furnace and AC together as a matched system, expect roughly $10,500-$13,500. Your final cost depends on an on-site evaluation of system size, ductwork, accessibility, and brand — so these are typical ranges, not a fixed quote. For a free estimate, call Coolvibe Services at (703) 935-3930 or schedule heating installation online.

How much does furnace replacement cost in Northern Virginia?

For most homes in Leesburg, Sterling, and across Northern Virginia, a new gas furnace falls in the range below. The biggest variables are your home’s size, the condition of your ductwork, and how the unit is installed.

Heating Project	Typical Installed Price
Gas furnace install (95% AFUE)	$4,500-$9,500
Full furnace + AC system	$10,500-$13,500
Heating tune-up	$99-$179

These are starting ranges. The actual price always depends on an on-site evaluation of your home’s heating load, ductwork, accessibility, and the brand and features you choose.

Why are new furnaces required to be 95% AFUE?

AFUE (Annual Fuel Utilization Efficiency) measures how much of your gas becomes usable heat. A 95% AFUE furnace turns 95% of the fuel into warmth for your home, with only 5% lost. In our region, new gas furnace installs are now required to meet the 95% AFUE high-efficiency standard.

What this means for you:

• Lower heating bills — less fuel is wasted, so you pay less to stay warm.
• A consistent baseline — every new install meets the same high-efficiency floor.
• Better comfort — high-efficiency furnaces hold a steadier temperature.

This standard is already factored into the $4,500-$9,500 range above, so you are not paying an “upgrade” premium for it.

What affects the cost of a new furnace?

Several factors move your price within that range:

• Furnace size — your unit is sized to your home’s square footage and heating load. Oversizing or undersizing both hurt comfort and efficiency.
• Ductwork condition — leaky or undersized ducts may need repair or modification.
• Accessibility — furnaces in tight closets, attics, or crawl spaces take more labor.
• Brand and features — variable-speed blowers and premium models cost more but run quieter and more efficiently.

Because every home is different, an on-site evaluation is the only way to get a firm, written quote.

Should I replace the furnace and AC at the same time?

If your air conditioner is also aging, replacing both as a matched system is often the smarter move. A full furnace-and-AC system runs about $10,500-$13,500, and the benefits add up:

• Matched components run at peak efficiency together.
• One installation visit is usually more cost-effective than two.
• Aligned lifespans mean you won’t be back for the second half in a year or two.

Our AC installation team handles the cooling side, so you get one coordinated system.

How can I make a new furnace more affordable?

• Finance it (coming soon). Flexible monthly financing is coming soon, so you’ll be able to install a high-efficiency furnace without a large upfront payment. See financing options.
• Check current offers. Visit our specials page for seasonal savings.
• Stay on top of maintenance. Annual tune-ups ($99-$179) extend your furnace’s life and protect efficiency, delaying the next replacement.

When is it time to replace your furnace?

A well-maintained gas furnace usually lasts 15-20 years. Consider replacement if yours:

• Is over 15 years old
• Needs frequent or costly repairs
• Produces uneven heat from room to room
• Drives rising heating bills
• Makes unusual noises or struggles to keep up on cold nights

A new high-efficiency unit heats more evenly, runs quieter, and lowers your monthly energy costs.

Get a free furnace replacement estimate in Northern Virginia

The only way to get an accurate number is an on-site visit. Coolvibe Services installs high-efficiency gas furnaces across Leesburg, Sterling, Ashburn, Reston, Herndon, Fairfax, and beyond — find your town on our service areas page.

Ready for a quote? Book online or call (703) 935-3930 for a free, no-pressure furnace replacement estimate.