Professional Air Conditioner Installation in Seattle & Western Washington
Beat the summer heat with a professionally installed, energy-efficient air conditioning system. We install central AC, ductless mini-splits, and heat pumps with proper sizing and expert workmanship.
Trusted by homeowners in Yelm, Olympia, Lacey, Tumwater & surrounding areas
Signs You Need a New AC System
AC unit is over 12-15 years old
Rising energy bills during cooling season
Frequent repairs approaching replacement cost
Uneven cooling with hot and cold spots
Excessive noise or strange odors
Poor humidity control or weak airflow
Don't wait for small problems to become big ones. Schedule service today.
Our AC Installation Process
Free In-Home Consultation
We evaluate your home's cooling needs with Manual J load calculations, assess existing ductwork, and recommend the right AC system type and size for optimal efficiency.
Transparent Estimate
Receive a detailed quote including equipment, installation labor, permits, and available utility rebates. We explain all options and financing without high-pressure sales tactics.
Expert Installation
Our NATE-certified technicians install your AC system following manufacturer specifications. We handle all electrical work, refrigerant charging, ductwork modifications, and permit requirements.
System Testing & Education
We test cooling performance, airflow balance, and thermostat operation. You'll receive instructions on filter maintenance, thermostat use, and how to maximize your new system's efficiency.
Why Choose Christianson's for AC Installation?
Expert installation of central AC, ductless mini-splits, and heat pump systems
High-efficiency systems with SEER ratings up to 26
Proper sizing with Manual J calculations prevents short-cycling and high bills
Utility rebate assistance for PSE, Snohomish PUD, and Tacoma Power
Financing options available for qualified buyers
All major brands including Mitsubishi, Daikin, Carrier, and Trane
Brands We Service
Our certified technicians are trained to work on all major HVAC brands
Frequently Asked Questions
How much does AC installation cost in Seattle?
Central air conditioning installation typically costs $4,000-$10,000 depending on system size (tons), SEER efficiency rating, home layout, and ductwork needs. Ductless mini-split systems range from $3,000-$8,000. Heat pump systems offering both heating and cooling cost $5,000-$12,000. We provide detailed estimates showing exactly what's included.
What size air conditioner do I need?
AC sizing depends on your home's square footage, insulation quality, window exposure, ceiling height, and Seattle's climate. Residential homes typically need 1.5 to 5 tons of cooling capacity. Our technicians perform Manual J load calculations to determine the perfect size - oversizing wastes energy while undersizing can't keep you cool.
How long does AC installation take?
Most central AC installations are completed in 1-2 days. Ductless mini-split installations typically take 4-8 hours. Timeline depends on ductwork modifications, electrical service upgrades, and system complexity. We'll provide a specific timeline during your free estimate.
Do I need to replace my furnace when installing AC?
Not necessarily. If your furnace is less than 10 years old and in good condition, we can install a compatible AC evaporator coil and outdoor condenser unit. However, replacing both the furnace and AC together improves efficiency, reduces labor costs, and ensures compatibility. We'll assess your furnace and provide honest recommendations.
Related Services
AC Installation Available Throughout Western Washington
We provide ac installation services in all major cities across King, Pierce, Snohomish, and Thurston Counties.
Why Homeowners Trust Us for AC Installation
Real homeowners. Real results. Here's what your neighbors are saying.
"Albert showed up same day and fixed our furnace fast. Honest and professional — exactly what you want from an HVAC company."
"Joe came out the day after Christmas and had our heat running within 2 hours. Professional, fast, and fair pricing."
"Vincent came out the next day after we called about our AC. Friendly, knowledgeable, and had it fixed quickly."
Ready to Get Comfortable?
Schedule your visit today — evenings & weekends available
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Same-Day Service
Emergency repairs available year-round. We'll be there when you need us most.
Certified Technicians
NATE and EPA certified professionals with all necessary tools and parts.
Fixed Price
No hidden fees or surprise bills. Flat rate pricing with parts locally sourced.