Furnace Installation & Replacement
Right-sized furnaces, honest proposals, and clean installs across Northern Virginia, Maryland & D.C.
Furnace Installation
Replace It Right
A furnace is a 15-to-20-year decision, and the install quality matters as much as the box. Ducco sizes replacements with a proper load calculation, matches the blower and coil, and verifies safe venting before we call the job done.
You'll get a written, itemized proposal with real options—like-for-like replacement, a high-efficiency upgrade, or a dual-fuel pairing—and a straight answer about which one actually fits your home and budget.
What We Install
Gas, high-efficiency, and dual-fuel systems for DMV homes.
Natural Gas Furnaces
New and replacement gas furnaces sized to your home with a proper load calculation—not a guess based on the old unit.
Furnace Replacement
Swapping an aging furnace for a new, properly sized unit, with options laid out in writing before work begins.
High-Efficiency Upgrades
High-efficiency condensing furnaces that can cut fuel use compared to older, lower-efficiency units.
Dual-Fuel Systems
Heat pump + furnace pairings that use the cheaper heat source for the conditions—popular across the DMV.
Matched Blowers & Coils
We match the furnace, blower, and evaporator coil so your heating AND cooling perform as rated.
Thermostats & Controls
Smart and conventional thermostat installation configured correctly for your new equipment.
Signs It's Time to Replace Your Furnace
If several of these sound familiar, a replacement consultation is worth your time.
15+ Years Old
Most furnaces last 15–20 years. Past that point, major repairs rarely pay off.
Repeated Repairs
If you're calling for repairs every season, the math starts favoring replacement.
Rising Fuel Bills
Aging furnaces lose efficiency—an upgrade can meaningfully cut heating costs.
Uneven Heating
Rooms that never warm up can indicate a system that's undersized, oversized, or failing.
Rust or Corrosion
Visible rust on the cabinet or burners is a sign the unit is nearing the end.
Yellow Burner Flame
A yellow, flickering flame can indicate combustion problems worth an immediate look.
How Furnace Installation Works
In-Home Consultation
We look at your current system, ductwork, insulation, and comfort complaints—then talk through your goals and budget.
Load Calculation & Proposal
We size the replacement properly and put options in writing: straightforward like-for-like, efficiency upgrade, or dual-fuel.
Installation Day
We'll give you a clear timeline before work starts and walk you through what to expect on installation day.
Walkthrough & Test
We test the system across its full cycle, verify safe venting, and walk you through the thermostat and filter care.
Furnace Installation FAQs
It depends on the size of your home, the efficiency level you choose, and installation complexity. We do an in-home consultation and provide a written, itemized proposal before any work begins—see our Estimates & Fees page for how our pricing process works.
Timing depends on your home and the scope of work, such as ductwork modifications or a dual-fuel conversion. We'll give you a clear timeline before work starts.
Not always, but if both are near end-of-life it's often cheaper to do them together, and a matched system performs better. We'll give you an honest assessment either way.
It depends on your fuel availability, electric rates, and how your home holds heat. Dual-fuel systems are a popular middle path in the DMV. We'll walk through the options and operating-cost tradeoffs during the consultation.
Your written, itemized proposal lays out the equipment options and the scope of work before anything begins, so you know what to expect.
Serving Homes Across the DMV
Trusted heating service in these communities and beyond.
Thinking About a New Furnace?
Get ahead of heating season. Schedule a consultation and get a written proposal with real options.