Based on recent installations in Greater Snohomish County — 2026 pricing:
Central AC Replacement
$4,500–$8,500
Central AC New Install
$5,500–$10,500
Mini Split — Single Zone
$3,500–$5,500
Mini Split — 2 Zone
$6,500–$9,500
Mini Split — 3+ Zone
$10,500–$22,000+
Ducted Heat Pump
$7,000–$14,500
Ductless Heat Pump
$4,000–$17,000
+ New Ductwork
+$2,500–$5,500
Includes equipment, labor, and permits. Add $150–$400 for permit fees. Final pricing depends on home conditions.
Single-zone mini split installation in Snohomish County runs $3,500–$5,500. Two-zone systems cost $6,500–$9,500. Three-zone systems run $10,500–$15,000. Whole-home multi-zone systems start at $15,000 and can exceed $22,000 depending on number of zones and brand.
Many older homes in Snohomish County were built without ductwork. If no ducts exist, a ductless mini split is usually the most cost-effective path. If ducts exist but need work, budget an additional $2,500–$5,500.
Central AC only cools. A heat pump both cools and heats — replacing your furnace and AC in one system. In the Pacific Northwest, heat pumps are popular for year-round efficiency and utility rebate eligibility.
Yes. Snohomish County PUD and PSE both offer rebates on qualifying heat pumps — typically $500–$1,500. Federal tax credits may also apply. Ask your pro about current programs.
For a 1,500–2,500 sqft home expect $5,500–$8,500 for a replacement, or $7,000–$10,500 for a new install with existing ductwork. Add $2,500–$5,500 if new ductwork is needed.
Most standard installations are completed in one day — 4–8 hours. Jobs requiring new ductwork may take 2–3 days.
Yes — most AC and heat pump installs in Washington State require a permit. Your licensed contractor pulls it on your behalf. Typical permit fees run $150–$400 in Snohomish County.
Sizing depends on square footage, ceiling height, insulation, and sun exposure. A technician will perform a load calculation during your free estimate. Both oversized and undersized systems cause problems.
Most local pros work with Carrier, Trane, Lennox, Rheem, and Mitsubishi for ductless systems. Your technician will walk you through options during the free estimate.
What Homeowners Say
5-Star Rated
Verified reviews from Mill Creek & Snohomish County homeowners
★★★★★
"They were so quick to respond and schedule. Turns out our coils needed replacing — they were so kind and efficient and had our AC back up and running 2 days later. Without breaking the bank!!"
— Mill Creek Homeowner
★★★★★
"Prompt for the appointment, very personable and patiently answered all my questions. So knowledgeable and their expertise in this field gave me complete confidence."
— Snohomish County Homeowner
★★★★★
"Extremely knowledgeable and explained everything clearly. The install went smoothly and I'm very happy with my heat pump. They even came back a month later to answer more questions."