Locally-owned since 1977 • Licensed, bonded and insured in Washington (WA Contractor Reg. #HOMECCA785BD) • WA Electrical Contractor Lic. #HOMECCA782DC • NATE-certified technicians • Carrier Factory Authorized Dealer • Mitsubishi Electric Diamond Dealer • Lennox Premier Dealer
Air conditioning repair and installation in Olympia, WA
Home Comfort Alliance repairs central air conditioners, installs new cooling systems and adds heat pumps and ductless mini splits for Olympia homeowners. Our Sumner branch schedules the work, and every job starts with a diagnosis or a load calculation, then a written price.
For most of the year, Olympia doesn’t need much cooling; the August average is 64.1°F. But the late-June 2021 heat dome set Olympia’s all-time record, and a few hot days a summer can make upstairs bedrooms unlivable. That is why we usually recommend a heat pump, which also heats the home through the long, mild winter, rather than an air conditioner that sits idle ten months a year.
Short answer: if you have ducts, a ducted heat pump or central AC is the usual choice; if you don’t, ductless heads cool the rooms that matter. Installation estimates are free.
What cooling costs
| Item | Low | Typical | High |
|---|---|---|---|
| AC repair (national estimate) | $100 | $350 | $3,000 |
| New central AC (Seattle-area estimate) | $5,098 | $7,377 | $9,785 |
| Ductless mini split (Seattle-area estimate) | $2,222 | $3,333 | $5,555 |
Sources: Angi, HVAC repair costs, 2026 data; Angi, Seattle AC replacement costs, updated August 2026; Angi, Seattle mini-split costs, 2026 data. Regional and national estimates, not quotes; no Olympia-only survey is published.
| Common repair | Typical range |
|---|---|
| Capacitor | $100 to $250 |
| Condenser fan motor | $100 to $700 |
| Thermostat | $150 to $350 |
| Refrigerant leak | $250 to $1,500 |
| Evaporator coil | $600 to $2,400 |
| Compressor | $800 to $3,000 |
Source: Angi, HVAC repair costs, 2026 data. National estimates.
Get an estimateA comfort advisor will call you to set up your visit.
Signs your AC needs service
- Air from the vents is barely cooler than the room.
- The outdoor unit hums but the fan doesn’t spin.
- Ice on the copper line or the indoor coil.
- Water pooling around the indoor unit or furnace.
- The breaker trips when the compressor starts.
- It runs all afternoon without reaching the set temperature, even on a moderate day.
Before you call, check that the thermostat is set to cool, the filter is clean, and the outdoor disconnect and breaker are on. If it is still not cooling, turn the system off so a failing part doesn’t take the compressor with it.
Quick fixes to try before you call
Some cooling problems are simple enough to check yourself in a few minutes:
- Thermostat: set to cool, set below room temperature, and fresh batteries if it uses them.
- Filter: a clogged filter can freeze the indoor coil and cut airflow to a trickle. Replace it and let an iced coil thaw for a few hours with the system off and the fan on.
- Breakers and disconnect: check the breaker for the outdoor unit and the indoor air handler or furnace, and the pull-out disconnect beside the outdoor unit.
- Condensate switch: many systems shut off when the drain backs up. A full drain pan or a tripped float switch points to a clogged line.
- Outdoor coil: if it is matted with debris, rinse it gently with a hose from the inside out after turning the power off.
If none of that works, or the breaker trips again, stop resetting it and book a visit.
Central AC, heat pump or ductless?
| Your home | Usual recommendation | Why |
|---|---|---|
| Gas furnace with ducts, no cooling | Heat pump added to the furnace (dual fuel) | Cools in summer, cuts gas use in fall and spring; may qualify for the PSE hybrid rebate |
| Electric furnace with ducts | Ducted heat pump | Replaces the most expensive heat and adds cooling; may qualify for the PSE electric-to-heat-pump rebate |
| Baseboard or wall heat, no ducts | Ductless mini split | No ductwork needed; each zone controlled separately |
| Existing central AC near the end of its life | Heat pump in place of the AC | Same cooling, plus efficient heat from the same unit |
Rebate details (as of September 2026): PSE hybrid heat pump rebate; PSE electric resistance to heat pump rebate. Home Comfort Alliance is a PSE Trade Ally approved contractor for HVAC systems. See also heat pump installation in Olympia.
Sizing, placement and the upstairs problem
A common cooling complaint in two-story homes is the upstairs. Heat rises, attic ducts gain heat, and one thermostat downstairs can’t see it. Bigger equipment rarely fixes that; it cools the downstairs faster and shuts off. We size the system with a room-by-room load calculation, look at duct size and insulation in the attic, and often recommend a second zone or a single ductless head upstairs instead of a larger central unit.
Outdoor unit placement matters too. We keep it on a level pad with clearance on all sides, away from dryer vents and bedroom windows, and out of roof drip lines so it isn’t pounded by runoff all winter.
Smoke days and indoor air
In some summers, wildfire smoke settles over western Washington, and those days are often the same hot days you want the windows closed. A cooling system lets you keep the house sealed, and a higher-rated filter or a media filter cabinet on a ducted system captures much of the fine smoke particulate. Ductless heads have their own filters; we can add a portable HEPA purifier recommendation for bedrooms on the worst days.
Spring AC and heat pump maintenance
A spring check keeps a cooling system ready for the first hot week instead of failing during it. We clean the outdoor coil, which collects cottonwood fluff, moss and grass clippings; check refrigerant pressures and temperature split; test the capacitor, contactor and fan motor; flush the condensate line so it can’t back up into a ceiling or furnace; and replace the filter. For heat pumps, the same visit covers heating readiness in fall. Between visits, keep two feet clear around the outdoor unit and change filters every one to three months while the system is running daily.
Why Olympia homeowners choose Home Comfort Alliance
- Serving Puget Sound homeowners since 1977, rated 4.8 stars from 5,000+ reviews.
- PSE Trade Ally approved contractor for HVAC systems, so we can file PSE heat pump rebates with you.
- Load calculations instead of guessing from the old unit’s size.
- HVAC, electrical and plumbing in one company, so new circuits and condensate drains are handled on the same visit.
- Written prices, free installation estimates and financing on approved credit.
Permits and installation
The City of Olympia requires permits for mechanical and electrical work, and it issues and inspects its own electrical permits (City of Olympia, What Do I Need?; L&I, cities that do their own electrical permits). Lacey does the same; Tumwater uses Washington L&I. We pull the permits and meet the inspectors.
- Estimate visit and load calculation.
- Written options with rebates and financing.
- Installation, usually one day for a single system and one to two days for ductless multi-zone.
- Start-up, refrigerant check and thermostat or remote setup.
- Inspection and rebate paperwork.
Warranty and Home Comfort Club
We support the manufacturer’s warranty on covered equipment parts, and we stand behind our air conditioning installations with a 1-year labor warranty from installation.
Join our Home Comfort Club, a monthly membership starting at $15 a month, and a new system we install gets extended labor coverage for as long as your membership stays active, up to 5 years from installation. Ask your technician or comfort advisor for the current plan details.
Olympia air conditioning FAQ
How much does AC installation cost in Olympia?
Seattle-area data puts a new central AC between $5,098 and $9,785, about $7,377 typical, and a ductless mini split between $2,222 and $5,555 (Angi, 2026). Your quote depends on size, ducts and electrical work. Installation estimates are free.
Do I really need air conditioning in Olympia?
Most summer days are mild, but Olympia reached 110°F on June 28, 2021. A heat pump is the most common choice because it cools on hot days and heats efficiently the rest of the year.
Are there rebates for air conditioning in Olympia?
Straight air conditioners don’t carry PSE rebates, but heat pumps can: $1,500, plus up to $2,400 through Efficiency Boost, when replacing electric heat or pairing with a PSE gas furnace (as of September 2026).
Why is my upstairs so hot?
Usually attic duct heat gain and a single thermostat downstairs. A load calculation, duct fixes, a second zone or one ductless head upstairs typically solve it better than a larger unit.
Do I need a permit for AC in Olympia?
Yes. Mechanical and electrical permits are required, and Olympia issues its own electrical permits. We handle them.
How long does an AC or heat pump last?
With yearly maintenance, most central air conditioners and heat pumps last around 12 to 15 years. A system that needs a compressor or coil after about 10 years is often worth replacing rather than repairing; we price both.
What warranty comes with your work?
We support the manufacturer’s warranty on covered equipment parts, and our labor warranty covers installations for 1 year from installation. Home Comfort Club members (monthly membership starting at $15 a month) with a new system installed by Home Comfort Alliance get extended labor coverage for as long as their membership stays active, up to 5 years from installation.
Why Choose Home Comfort Alliance in Olympia?
Your Comfort is Our Promise
We promise...
Reliable heating, air conditioning, plumbing and electrical service, all from one trusted company.
To educate and guide you through your options so you’ll find the right solution at the right price.
Knowledgeable and respectful workers who ensure both your own comfort during the installation process, and lasting comfort from your home systems.
Outstanding service, communication, and follow-up, so your home is comfortable now and for years to come.
Get an air conditioning estimate in Olympia
A Sumner-based comfort advisor will size a system for your home and give you written options with PSE rebates and financing.
Get an estimate
A Sumner-based comfort advisor will call you to set up your visit.