How much does HVAC cost in Washington?
By Our research team · Last verified · Methodology
Most Washington homeowners pay $4,500–$10,100 to replace a central AC on existing ducts (3 tons, installed). Typical is $6,950, about 12% above the US typical of $6,200. Replacing the furnace too brings it to $7,050–$17,350.
How we get this data- Typical
- $6,950
- Low end
- $3,350
- High end
- $15,150
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Get my fair quote →The typical Washington price is $6,950, 12% above the US typical of $6,200.
Washington's price band
Washington is pricier than 93% of the 195 US metros we price for HVAC work.
Expect $4,500–$10,100 for a new 3-ton central AC in Washington and $6,950 for a typical job. Homes without ducts usually go ductless: $4,900–$10,850 for two zones and $8,700–$19,500 for four.
DC row houses often have the condenser on the roof and the air handler in a tight closet or attic, so roof access can add to the bill. Heat pumps and gas furnace + AC systems are both common across the region. Under the federal Southeast standard, a new split central AC under 45,000 BTU must be at least 14.3 SEER2.
These are installed prices for Washington, re-verified in November 2026. Removal and startup are normally included; the permit, a new line set and duct repairs often are not. Get them itemized.
Comparing cities, or after the US-wide picture? See the national guide: HVAC cost in the USA.
$4,500–$10,100 to replace a 3-ton central AC on existing ducts in Washington, installed — $6,950 typical. A heat pump runs $5,950–$13,550, a gas furnace $3,050–$8,700, and AC + furnace together $7,050–$17,350. Verified November 2026. Get free Washington quotes →
- 3-ton central AC on existing ducts: $4,500–$10,100 ($6,950 typical)
- Heat pump, 3-ton: $5,950–$13,550; gas furnace: $3,050–$8,700
- AC + furnace together: $7,050–$17,350
- Mini-split: $2,700–$6,050 for one 12,000 BTU zone, $8,700–$19,500 for four
- Downtown, Shaw & U Street runs 5–10% above the city average; Northeast & Southeast DC: standard pricing
Prices verified November 2026 · Cross-referenced against 45+ American pricing sources · See methodology
Installed prices for the Washington metro, re-verified November 2026. Equipment-heavy jobs move less with local labor costs than service calls do.
| Service | Low | Typical | High |
|---|---|---|---|
| Central AC replacement, 3-ton (existing ducts)installed | $4,500installed | $6,950 | $10,100 |
| Central AC + gas furnace, replaced togetherinstalled | $7,050installed | $10,650 | $17,350 |
| Heat pump replacement, 3-ton (existing ducts)installed | $5,950installed | $8,700 | $13,550 |
| Central heat pump, high-efficiency with zoning (3-ton)installed | $10,850installed | $15,750 | $22,800 |
| Gas furnace replacement (80–96% AFUE)installed | $3,050installed | $5,000 | $8,700 |
| Ductless mini-split, 1 zone, 9,000 BTUinstalled | $2,400installed | $3,600 | $5,200 |
| Ductless mini-split, 1 zone, 12,000 BTUinstalled | $2,700installed | $4,250 | $6,050 |
| Ductless mini-split, 1 zone, 18,000 BTUinstalled | $3,450installed | $5,400 | $7,800 |
| Ductless mini-split, 1 zone, 24,000 BTUinstalled | $4,100installed | $6,700 | $9,550 |
| Ductless mini-split, 1 zone, 30,000–36,000 BTUinstalled | $5,200installed | $8,450 | $12,450 |
| Multi-zone mini-split, 2 zonesinstalled | $4,900installed | $7,050 | $10,850 |
| Multi-zone mini-split, 4 zonesinstalled | $8,700installed | $13,000 | $19,500 |
| Like-for-like AC swap: same-size mini-split, existing line setinstalled | $2,500installed | $3,800 | $5,650 |
| Install only: homeowner-supplied mini-split, 1 zonelabor only | $560labor only | $1,250 | $2,250 |
| Evaporative (swamp) cooler, roof-mountedinstalled | $1,400installed | $2,500 | $3,900 |
| Ductwork replacement, whole houseinstalled | $2,750installed | $6,050 | $10,400 |
| AC compressor replacement (out of warranty)per repair | $1,400per repair | $2,300 | $3,250 |
| AC repair, major: refrigerant leak fix + rechargeper repair | $660per repair | $1,450 | $2,750 |
| AC repair, minor: capacitor, contactor or drain lineper repair | $170per repair | $330 | $670 |
| AC tune-upper visit | $85per visit | $120 | $220 |
| Whole-system HVAC tune-up (AC + furnace)per year | $170per year | $260 | $500 |
| Duct cleaning, whole houseper home | $340per home | $500 | $780 |
| Smart thermostat, installedinstalled | $210installed | $320 | $480 |
| Old AC or furnace removal and disposalper unit | $110per unit | $280 | $550 |
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Prices verified November 2026 · Cross-referenced against 45+ American pricing sources · See methodology
Prices cover the Washington metro: the city and its close suburbs. Outlying towns can run a little lower; Downtown, Shaw & U Street runs a little higher.
HVAC prices across Washington
Where you live changes the quote. Downtown, Shaw & U Street costs the most because of access and older buildings; Northeast & Southeast DC usually comes in at or under the city typical.
Downtown, Shaw & U Street
- Installed
- $4,750–$11,100 installed
- Typical job
- $6,550–$8,800 / 3-ton AC swap
The priciest part of the metro for a swap: roof access, cramped closets for air handlers and limited parking stretch a one-day job. Many older units here have no ducts at all.
Northeast & Southeast DC
- Installed
- $4,500–$10,100 installed
- Typical job
- $6,250–$8,000 / 3-ton AC swap
Standard pricing for a standard swap: easy access, driveway parking and ducts that are usually in fair shape.
Prince George's County
- Installed
- $4,600–$10,600 installed
- Typical job
- $6,400–$8,400 / 3-ton AC swap
A mix of renovated older homes and newer builds. Ductless mini-splits are common where old houses never had ducts.
Northern Virginia
- Installed
- $4,500–$10,700 installed
- Typical job
- $6,250–$8,450 / 3-ton AC swap
Bigger homes with garages and attics. Many need 4 to 5 tons or two systems, and attic air handlers take longer to swap than ones in a garage or closet.
Real-world HVAC costs in Washington
Here's what common HVAC jobs cost in Washington in 2026, a 3-ton central AC replacement on existing ducts, installed.
Swap a 3-ton AC on good ducts
Same spot, same size, matched indoor coil, old unit hauled away. Most Washington jobs land near $6,950; a 17+ SEER2 unit adds about $2,350.
Replace the AC and gas furnace together
The usual move when both are 15+ years old. One install, one warranty, a matched system. Typical is $10,650.
Switch from AC + furnace to a heat pump
A 3-ton heat pump on existing ducts, typically $8,700. Keeping the furnace as backup (dual-fuel) runs $7,700–$18,450.
Cool one room with a mini-split
A 12,000 BTU single-zone mini-split for a bedroom, office or addition, typically $4,250. A 9,000 BTU unit for a small room is $2,400–$5,200.
Cool a whole home with no ducts
A 4-zone ductless system, typically $13,000. Adding ducts for central AC instead costs $2,750–$10,400 before the equipment.
How much does HVAC cost in Washington?
A typical 3-ton replacement in Washington is $6,950, inside a normal range of $4,500–$10,100. That price is about 12% above the US typical of $6,200. Most of the difference between quotes is efficiency, brand and how hard the old equipment is to reach.
For homes without ducts, a single-zone mini-split runs $2,700–$6,050 and a 4-zone system $8,700–$19,500. Adding whole-house ducts instead costs $2,750–$10,400 on top of the equipment.
Central AC, heat pump and furnace prices in Washington (2026)
A 3-ton central AC runs $4,500–$10,100, a 3-ton heat pump $5,950–$13,550, and a gas furnace $3,050–$8,700, all installed.
| Line on the quote | Low | Typical | High |
|---|---|---|---|
| Central AC replacement, 3-ton (existing ducts) | $4,500 | $6,950 | $10,100 |
| Heat pump, 3-ton (existing ducts) | $5,950 | $8,700 | $13,550 |
| Gas furnace (80–96% AFUE) | $3,050 | $5,000 | $8,700 |
| Central AC + gas furnace together | $7,050 | $10,650 | $17,350 |
| Mini-split, 1 zone, 12,000 BTU | $2,700 | $4,250 | $6,050 |
| Mini-split, 2 zones | $4,900 | $7,050 | $10,850 |
| Mini-split, 4 zones | $8,700 | $13,000 | $19,500 |
| Ductwork replacement, whole house | $2,750 | $6,050 | $10,400 |
AC or heat pump in Washington? A heat pump costs about $1,750 more than a 3-ton AC at the typical price, but it also replaces your heating. If your furnace is old, compare a heat pump with the $10,650 AC + furnace swap, not with the AC alone.
What moves an HVAC quote in Washington:
- Size: a 2-ton system runs about $5,850 and a 5-ton about $9,750 at the typical price. Ask for a Manual J load calculation.
- Efficiency: the minimum here is 14.3 SEER2; a 17+ SEER2 two-stage unit adds about $2,350.
- Access: attic air handlers, rooftop condensers and tight closets add labor, most often in Downtown, Shaw & U Street.
- Line set and coil: a new line set runs $220–$720, and the indoor coil has to match the new refrigerant.
- Season: spring and fall bring the best prices; a breakdown during a summer heat wave brings the worst.
Ask every Washington contractor for the same things: tonnage, SEER2 rating, model numbers for both the outdoor and indoor units, and whether the permit and line set are included. Compare those, not just the total. Get a quote for your heating and cooling work →
HVAC cost in Washington by home size
About $6,300 for a 2.5-ton AC (1,000–1,600 sq ft), $6,950 for 3 tons (1,600–2,000 sq ft), and $8,600–$9,750 for 4–5 tons in homes over 2,500 sq ft, typical Washington prices on existing ducts.
Worked example: a 2,000 sq ft Washington home with a 16-year-old AC and furnace. Replacing both runs about $10,650; switching to a 3-ton heat pump on the same ducts runs about $8,700; replacing only the AC is $6,950 but leaves an old furnace in place.
Homes over 2,500 sq ft or with two floors often have two systems or zoning. A high-efficiency zoned heat pump runs $10,850–$22,800, and adding zoning to an existing system $1,850–$4,900.
Washington HVAC costs by system type
| System type | Cost | Best for |
|---|---|---|
| Central AC, 3-ton (existing ducts) | $4,500–$10,100 installed | Homes with sound ducts and a furnace or air handler to pair with |
| Ductless mini-split, single zone (9,000–18,000 BTU) | $2,400–$7,800 installed | One room, an addition, or a home with no ducts |
| Multi-zone ductless mini-split (2–4 zones) | $4,900–$19,500 installed | Whole homes with no ducts, room-by-room control |
| Heat pump, 3-ton ducted (heats and cools) | $5,950–$13,550 installed | Mild and hot climates; replacing an AC and electric heat |
| Gas furnace + AC, replaced together | $7,050–$17,350 installed | Cold climates with natural gas and old equipment on both sides |
| Gas furnace only (80–96% AFUE) | $3,050–$8,700 installed | When the AC is newer than the furnace |
| Dual-fuel: heat pump + gas furnace | $7,700–$18,450 installed | Cold climates: electric heat most days, gas on the coldest |
| Cold-climate heat pump, 3-ton ducted | $10,300–$26,050 installed | Northern homes leaving gas, oil or propane |
| Central heat pump, high-efficiency with zoning | $10,850–$22,800 installed | Big or two-story homes with hot and cold rooms |
| Evaporative (swamp) cooler, roof-mounted | $1,400–$3,900 installed | Dry Western climates only |
| Geothermal heat pump (ground loop) | $16,250–$37,950 installed | Large lots and long stays in one home |
| Window or through-the-wall AC | $230–$1,350 installed | Single rooms and renters; cheapest way to cool |
Equipment vs installation: the Washington AC bill
On a typical $6,950 3-ton swap in Washington, the condenser and matched coil are roughly $2,800–$4,150 and the rest is labor, materials, the permit and overhead. Labor usually makes up 40–60% of an AC replacement.
Buying the unit yourself rarely saves much: many contractors won't install customer-supplied equipment, and the ones who do charge $560–$2,250 or more for a mini-split and won't cover the parts. Brand warranties often require a licensed installer.
What's included in a Washington AC replacement (and what costs extra)
A standard replacement quote covers the outdoor unit, a matched indoor coil, refrigerant, connection to your existing ducts and wiring, removal of the old unit, and startup. Common extras:
- Permit and inspection: $110–$280, often built into the quote
- New refrigerant line set: $220–$720 if the old one can't be reused
- New condenser pad: $45–$280
- Electrical panel upgrade: $940–$4,450, mostly when adding a heat pump or more capacity
Ask for the AHRI certificate showing the matched rating of your outdoor and indoor units. It proves the system you paid for is the one that was installed.
Washington's climate
DC row houses often have the condenser on the roof and the air handler in a tight closet or attic, so roof access can add to the bill. Heat pumps and gas furnace + AC systems are both common across the region. Under the federal Southeast standard, a new split central AC under 45,000 BTU must be at least 14.3 SEER2.
System size
Each ton adds equipment cost: about $5,850 for 2 tons and $8,600 for 4 tons at the typical Washington price. A Manual J load calculation often shows a smaller system will do.
Efficiency rating
The federal minimum for a new split AC here is 14.3 SEER2 for units under about 3.75 tons, and 13.8 SEER2 for bigger units. Higher ratings cost more upfront and pay back fastest where AC runs most of the year.
New refrigerants
New systems use A2L refrigerants (R-454B or R-32), so the indoor coil must match the outdoor unit. That's why condenser-only swaps are rare now, and why older R-410A systems cost more to service.
Ducts and access
Leaky or undersized ducts, attic air handlers and rooftop condensers add hours. Whole-house duct replacement runs $2,750–$10,400.
Location: Downtown, Shaw & U Street vs Northeast & Southeast DC
Downtown, Shaw & U Street jobs cost more because of access, parking and older buildings. Northeast & Southeast DC quotes usually sit at or a little under the city typical.
Season and urgency
Replacing on your schedule in spring or fall is cheaper than an emergency swap in a heat wave. After-hours repair labor runs $180–$280 an hour.
- Get three quotes for the same system.Same tonnage, same SEER2 rating, model numbers on every quote. Washington quotes for the same 3-ton swap run anywhere from $4,500 to $10,100.
- Replace before it fails.If your system is 12–15+ years old, replace it in spring or fall. Emergency replacements in peak season leave no room to shop around.
- Right-size the system.Ask for a Manual J load calculation. An oversized AC costs more, cycles on and off, and leaves the house clammy.
- Check your utility for rebates.There is no federal tax credit for systems installed in 2026, but many utilities still pay rebates on efficient heat pumps and AC. Check before you sign; most require pre-approval or a listed contractor.
- Do the AC and furnace together if both are old.One install of both runs $7,050–$17,350, less than two separate jobs.
- Keep up with tune-ups.A yearly tune-up at $85–$220 catches weak capacitors and low refrigerant before they kill a compressor ($1,400–$3,250).
Before you pay a deposit to a Washington HVAC contractor, get these in writing:
- Tonnage and how it was sized (a Manual J load calculation)
- Model numbers for the outdoor unit and the indoor coil or air handler
- The matched SEER2 (and HSPF2 for a heat pump) rating
- Whether the line set is new, flushed or reused
- Permit, inspection and removal of the old unit
- Thermostat, pad, disconnect and any electrical work
- Parts and labor warranty terms, and who registers the equipment
- Total price, deposit, and start and finish dates
How much does it cost to replace a central AC in Washington?
$4,500–$10,100 for a 3-ton system on existing ducts, installed, with $6,950 typical in Washington. Higher-efficiency units, attic or rooftop installs and new line sets push it up.
How much does a heat pump cost in Washington?
$5,950–$13,550 for a 3-ton heat pump on existing ducts, about $8,700 typical. A high-efficiency zoned system runs $10,850–$22,800.
How much is a new furnace in Washington?
$3,050–$8,700 for a gas furnace installed, about $5,000 typical. With a new AC at the same time, $7,050–$17,350.
How much does a mini-split cost in Washington?
$2,700–$6,050 for a 12,000 BTU single zone, $4,900–$10,850 for two zones and $8,700–$19,500 for four.
How much is an AC tune-up in Washington?
$85–$220 per visit. A yearly plan for AC and furnace runs $170–$500.
How much does AC repair cost in Washington?
$170–$670 for common fixes like a capacitor or contactor. A refrigerant leak repair with recharge runs $660–$2,750, and a compressor $1,400–$3,250.
What size AC does a Washington home need?
As a rough guide, 2.5 tons covers about 1,000–1,600 sq ft and 3 tons about 1,600–2,000 sq ft, but insulation, windows and climate change that. Ask for a Manual J load calculation instead of matching the old unit.
Is there a tax credit for a new AC or heat pump in Washington?
No federal one for 2026: the 25C credit covered improvements made through December 31, 2025. Utility and state rebates may still apply, so check before you buy.
Do I need a permit to replace an AC in Washington?
Usually, yes. Most US cities and counties require a mechanical permit for an AC or furnace replacement, typically $110–$280, and a licensed contractor normally pulls it.
How much does it cost to add ducts in Washington?
$2,750–$10,400 for whole-house ductwork, before the AC or heat pump. In many older homes a multi-zone mini-split ($8,700–$19,500 for four zones) costs less.
Prices verified November 2026 · Cross-referenced against 45+ American pricing sources · See methodology
Prices for the Washington metro area, November 2026. Outer suburbs may vary.
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