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If your house has gas, the best setup for most Northern Virginia homes is dual fuel: a heat pump that heats the house through the mild days, which is most of the winter, and a 95 percent gas furnace that takes the coldest hours. The rebates, checked October 26, 2026: Dominion Energy pays $156 to $312 per heat pump after its home energy evaluation, NOVEC has no heat pump or furnace rebate, and Washington Gas, whose contractor network we’re in, pays up to $2,000 toward dual fuel. With no gas line, a variable-speed heat pump does it alone. Over the last five winters at Dulles, only about 3 percent of the heating came on hours below 17 degrees. On Dominion power, gas becomes the cheaper heat below about 38 degrees; on NOVEC, below about 16. Call SwiftPro, rated 5.0 stars across 1,130 reviews, at (703) 997-9757, 24 hours a day, 7 days a week.
Tell us what heats the house now and about how old it is, whether you have gas, and who sends your electric bill: Dominion or NOVEC.
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Which one fits your house
Start with what you have now. These six cover almost every house we see in Northern Virginia.
Dual fuel. A heat pump goes in where the air conditioner sits and a high-efficiency gas furnace stays inside. The heat pump heats most of the winter and cools all summer; the furnace takes the coldest hours.
Heat pump replacement and furnace replacement have the details.
Replace the AC with a heat pump instead. It cools the same way, heats the house on the mild days and hands the cold ones to the furnace you already have.
That’s dual fuel without buying a new furnace.
A variable-speed heat pump, the kind sold as a cold-climate heat pump, sized for heating and not just for cooling. Backup heat strips cover the coldest nights.
Only about 3 percent of the last five winters’ heating at Dulles came below 17 degrees, and under 1 percent below 10, so the strips run only a few hours a year.
NOVEC’s power costs less than Dominion’s, so the heat pump stays the cheaper heat down to about 16 degrees with a 95 percent furnace. It carries nearly the whole winter.
Dual fuel still covers the coldest nights, and a heat pump on its own makes sense here too.
Ductless mini splits heat and cool room by room with no ductwork, and they’re heat pumps too.
Dual fuel works the same way with a propane furnace. Propane prices move more than natural gas, so we work out the switch point from your own propane price at the estimate.
Northern Virginia winters
Most of the heating season is mild, and that’s what decides it.
We pulled every hourly temperature reading at Dulles for the last five heating seasons, October through April, and weighted each hour by how much heat a house needs at that temperature. About 30 percent of the heating came below freezing, 12 percent below 25 degrees, 3 percent below 17 and under 1 percent below 10. Last winter ran colder, with 7 percent below 17.
A variable-speed heat pump keeps heating in that. The one in our dual fuel guide still puts out about 2.1 units of heat for every unit of electricity at 5 degrees. The expensive heat is the backup strips: on Dominion power they cost about 3.2 times what a new gas furnace does for the same heat. What aux heat and emergency heat mean on your thermostat.
So size a heat pump for heating, not just for cooling, against your county’s design temperature: 14 degrees in Loudoun, 16 in Prince William, 18 in Fairfax and 20 in Arlington. Do heat pumps work in a Virginia winter?
A heat pump in Arlington with ice on the ground. It keeps making heat in this.
Dual fuel
A dual fuel thermostat hands the heat from the heat pump to the furnace at an outdoor temperature you set. Set it where gas becomes the cheaper heat.
| Heat pump and furnace | On Dominion power | On NOVEC power |
|---|---|---|
| Variable-speed heat pump, 95 percent furnace | below 38°F | below 16°F |
| Single-stage heat pump, 95 percent furnace | below 38°F | below 21°F |
| Variable-speed heat pump, older 80 percent furnace | below 26°F | 5°F or colder |
| Single-stage heat pump, older 80 percent furnace | below 27°F | below 10°F |
The rates behind it, every usage charge included: 16.1 cents a kilowatt hour on Dominion’s winter rate past the first 800 kilowatt hours a month, 12.6 cents on NOVEC. That gap is why a NOVEC house runs the heat pump to much colder temperatures.
On Columbia Gas, which serves parts of Chantilly and Herndon, the switch drops to about 33 degrees on Dominion and 9 on NOVEC. The number moves with the rates, too: at last winter’s gas price, the same Dominion house would have switched at about 42. The whole dual fuel guide, with the math.
The thermostat is where the switch point lives.
Installed prices
Our estimator’s installed prices, by size and efficiency. The $1,500 off new heating and AC is already in them.
A heat pump system
$8,499 to $21,650
or $142/mo at 0% APR for 60 months
Heat pump and air handler, all-electric or ready to pair with a gas furnace for dual fuel.
Furnace and AC together
$8,898 to $23,000
or $148/mo at 0% APR for 60 months
Both replaced together, on one estimate.
A gas furnace alone
$4,285 to $14,040
or $71/mo at 0% APR for 60 months
Keeping the air conditioner you have.
Monthly figures: 60mo @ 0% APR on each starting price, the whole price financed, on approved credit. Longer plans lower the payment and cost more in total. The lender sets the final terms. How financing works
Prices checked .
Dual fuel has no list price here. What it costs depends on whether your furnace stays, so we price it in writing at the free in-home estimate.
More on each: heat pump replacement, furnace replacement and furnace and AC replacement. Plans and lenders are on our financing page, and every deal we’re running is on our offers page.
Want your own number before anyone comes out? The HVAC estimator prices your house in a few questions.
Checked
What each program pays right now, who qualifies and how it’s paid. We read each program’s own page on October 26, 2026, and programs change, so we check again at your estimate.
| Program | What it pays | Who qualifies | How it’s paid |
|---|---|---|---|
| Washington Gas furnace rebate | $500 for a gas furnace rated 95.1 to 96.9 percent AFUE; $700 at 97 percent or higher | Washington Gas residential customers in Virginia, with the furnace put in by a contractor in Washington Gas’s network | The contractor files it. It comes off the invoice or as a check in 6 to 8 weeks. We’re in the network for furnaces and file it for you. |
| Washington Gas dual fuel heat pump rebate | $2,000 for a heat pump put in with a new 95 percent furnace; $1,400 keeping a furnace that’s 90 percent or better | Washington Gas residential customers in Virginia replacing a central air conditioner with a dual fuel heat pump rated at least 15.2 SEER2 and 7.5 HSPF. Swapping one heat pump for another doesn’t count. | Same as the furnace rebate: a contractor in Washington Gas’s network files it, and it comes off the invoice or as a check in 6 to 8 weeks. We file it for you. |
| Columbia Gas of Virginia furnace rebate | Up to $500 for a gas furnace rated 90 percent AFUE or higher | Residential customers who heat with gas, replacing a furnace in an existing home, bought and installed in 2026 | Apply within 120 days of the install or by January 31, 2027, whichever comes first. First come, first served. |
| Dominion Energy Virginia Heat Pump Upgrade | $156 to $312 per heat pump by efficiency tier, from 15.2 SEER2 and 7.4 HSPF2 up; $195 for a ductless mini split | Dominion residential customers in a single-family home, detached or attached, who pay the electric bill. A home energy evaluation comes first, and Dominion’s terms say fuel switching is not allowed. | A contractor on Dominion’s participating list files it within 45 days. Open until the program is fully subscribed. We’ll check what you qualify for. |
| Dominion Income and Age Qualifying program | No-cost energy upgrades, heat pump tune-ups among them, through Dominion’s weatherization providers | Households at or under 80 percent of the local median income or 60 percent of the state median, whichever is greater, or 60 and older at up to 120 percent of the state median | Through Dominion’s weatherization providers. |
| NOVEC | No heat pump or furnace rebate listed | NOVEC members | Nothing to file for a new heating system. |
| Virginia Home Energy Rebates (HEAR and HOMES) | When open: up to $8,000 toward a heat pump for households at or under 150 percent of area median income, or up to $8,000 a household for upgrades modeled to cut energy use 20 percent or more | Set by household income and by modeled energy use | Not open yet, and no opening date given (Virginia Energy’s page, updated October 13, 2026). Not retroactive, so a system put in before it opens doesn’t count. |
| Federal tax credit (25C) | Nothing for a 2026 install | No one, for a system installed in 2026 | The IRS says the credit isn’t allowed for anything placed in service after December 31, 2025. |
The IRS change is in its questions on the July 2025 law, read October 26, 2026. What the end of the 2026 HVAC tax credit means for your quote.
Not sure what you qualify for?
Tell us who sends your gas and electric bills, and we’ll check every program on this list for your house at the free in-home estimate.
At the estimate
At the free in-home estimate, we look at five things before anyone talks about equipment.
We’re a Trane Comfort Specialist, and we set a dual fuel system’s switch point to your own utilities’ rates, Dominion or NOVEC, Washington Gas or Columbia, instead of leaving it at the factory setting.
Two of our HVAC technicians in a Northern Virginia basement mechanical room.
The system we put in first
Built to take a beating. Put in by our crew.
Heat lamps, snow and rain on one outdoor unit: that’s Trane’s own film. We’re a Trane Comfort Specialist, on Trane’s own dealer locator, and when you pick a Trane, our crew puts it in.
Films: Trane’s own.
Where we work
We install heat pumps, gas furnaces and dual fuel systems across Fairfax, Arlington, Loudoun, Prince William, Fauquier and Stafford counties, from our offices in Chantilly and Ashburn.
Keep reading
Asked on the phone
For most houses with gas, both. A dual fuel system lets the heat pump carry the house on the mild days, which is most of the winter, and hands off to a 95 percent gas furnace when it gets colder than about 38 degrees on Dominion power, or about 16 on NOVEC, with Washington Gas at October 2026 rates. With no gas line, a variable-speed heat pump sized for heating does it alone: over the last five winters at Dulles, only about 3 percent of the heating came on hours below 17 degrees.
As of October 26, 2026, Dominion Energy Virginia’s Heat Pump Upgrade pays $156 to $312 per heat pump, by efficiency tier, or $195 for a ductless mini split. You have to be a Dominion residential customer who pays the electric bill, a home energy evaluation comes first, and a contractor on Dominion’s participating list files it within 45 days of the install. Dominion’s terms say fuel switching is not allowed, and the money runs until the program is fully subscribed. We’ll check what you qualify for at the free in-home estimate. NOVEC lists no heat pump or furnace rebate. On the gas side, we’re in Washington Gas’s contractor network for furnaces and file its $500 or $700 furnace rebate for you, or its $2,000 dual fuel rebate when a heat pump replaces your air conditioner alongside a new 95 percent furnace.
No. The federal energy efficient home improvement credit (25C) ended with 2025: the IRS says it isn’t allowed for anything placed in service after December 31, 2025. If a 2026 quote counts a federal credit, that math is wrong. What’s left is utility money: the Washington Gas and Columbia Gas furnace rebates, Washington Gas’s dual fuel rebate and Dominion’s heat pump rebate. Virginia’s Home Energy Rebates aren’t open yet, and Virginia Energy hasn’t given a date.
Installed, a heat pump system runs $8,499 to $21,650, furnace and AC together $8,898 to $23,000, and a gas furnace alone $4,285 to $14,040, by size and efficiency. Those are our estimator’s prices, with the $1,500 off new heating and AC already in them. Dual fuel is priced at the free in-home estimate, since it depends on whether your furnace stays. From about $71 a month at 0% APR for 60 months, the whole price financed, on approved credit. How financing works
Yes, if the furnace has years left in it. The heat pump goes in where the air conditioner sits, cools all summer the way the AC did, and heats the house until it gets cold enough that gas costs less, and then the thermostat switches to the furnace. That’s dual fuel without buying a new furnace, and if the furnace is 90 percent or better, Washington Gas pays $1,400 toward the heat pump. We check the furnace’s age and condition and set the thermostat up to run both before we price it.
Heat pump, furnace or both?
Send the form at the top with what heats the house now and who sends your gas and electric bills. The office calls or texts you back to set a time for the free in-home estimate.
SwiftPro Heating, Cooling & Plumbing
4230 Lafayette Center Dr N, Chantilly, VA 20151
44679 Endicott Dr, Suite 211, Ashburn, VA 20147
SwiftPro Plumber & Water Heaters
4200 Lafayette Center Dr, Suite N, Chantilly, VA 20151
Virginia Class A contractor license #2705192276
Current offers, and what each one covers, are on our offers page.
Rather pick a time yourself? Book online.
