How Much Does Central AC Installation Cost in Washington?
Washington pricing is above the national average. Updated for 2026.
Central AC Installation Pricing in Washington
In Washington, the average cost for central ac installation is $7,475 per system, which is 15% higher than the national average of $6,500. Most Washington residents pay between $4,025 and $13,800.
Washington has a higher cost of living than most states, which translates to higher labor rates and material costs. Urban areas within Washington may be even higher.
Central air conditioning installation includes a condenser unit, evaporator coil, refrigerant lines, and thermostat. If you don't have existing ductwork, add $3,000-$7,000 for duct installation.
Washington vs National Average
What Affects Central AC Installation Cost in Washington?
System size
1.5-2 ton (1,000 sq ft): $3,500-$6,000. 3 ton (1,500 sq ft): $4,500-$8,000. 4-5 ton (2,500+ sq ft): $6,000-$12,000
Efficiency
14 SEER (standard): $3,500-$6,000. 16 SEER (mid-range): $5,000-$8,000. 20+ SEER (high-eff): $7,000-$12,000
📐 Central AC Installation in Washington Cost Calculator
Get a personalized estimate based on your project details
Get Free Quotes from Local Pros
Compare prices from top-rated contractors in your area.
Top-Rated Central AC Installation Pros in Washington
5 providersReliable Plumbing
🏆 SPONSOREDProudly serving WA since 2009. Licensed, insured, and committed to excellence.
All-Pro Property Services
⭐ PREMIUMProudly serving WA since 2007. Licensed, insured, and committed to excellence.
Elite Restoration
✅ VERIFIEDAre You a Central AC Installation Professional?
Get listed on CostWhale and reach thousands of customers searching for central ac installation in Washington.
💡 Tips to Save on Central AC Installation in Washington
- 1.Install in fall/winter off-season for 10-20% savings
- 2.14-16 SEER units offer the best value for most climates
- 3.Federal tax credits cover 30% of high-efficiency systems (up to $2,000)
- 4.Get 3+ quotes — AC installation pricing varies widely
📈 Central AC Installation in Washington Cost Trends (2020–2024)
Prices have increased +17.7% over the last 5 years
| Year | National Avg | YoY Change |
|---|---|---|
| 2020 | $6,349 | — |
| 2021 | $6,616 | +4.2% |
| 2022 | $7,046 | +6.5% |
| 2023 | $7,243 | +2.8% |
| 2024 | $7,475 | +3.2% |
Based on national averages adjusted for annual inflation. Actual costs vary by location and project scope.
💬 What Did You Pay?
Real costs reported by homeowners for Central AC Installation in Washington
Recent Reports
Frequently Asked Questions
How long does central AC last?
15-20 years with regular maintenance. Systems in hot climates (Florida, Arizona) may last 12-15 years due to higher usage. Annual maintenance ($75-$200) extends lifespan significantly.
Central AC Installation Cost in Other States
Related Cost Guides for Washington
🔍 Get Free Quotes from Local Pros
Compare prices from pre-screened contractors in your area. Free, no-obligation estimates.
* CostWhale may earn a commission. This doesn't affect our pricing data or recommendations.
💰 Get Weekly Cost-Saving Tips
Join 10,000+ smart homeowners. Unsubscribe anytime.