Seasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
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AfterHow Much Does HVAC Cost in Seattle?
Most homeowners in Seattle pay between $175 and $825 for HVAC repairs, while a full AC installation runs $4,130-$8,850 including equipment and labor. A seasonal tune-up, which catches problems before they turn into expensive repairs, typically costs $95-$235. What you’ll actually pay depends on the equipment brand, the age of your system, and whether your home is in a hillside neighborhood like Queen Anne or Magnolia where access can add time to the job.
HVAC Cost Breakdown (2026)
| Service | Typical Price Range | What’s Included |
|---|---|---|
| AC Repair | $175-$765 | Diagnosis, parts, labor for cooling system fixes |
| Furnace Repair | $175-$825 | Diagnosis, parts, labor for heating system fixes |
| AC Installation | $4,130-$8,850 | New equipment, removal of old unit, basic electrical |
| Tune-Up / Maintenance | $95-$235 | Full inspection, cleaning, safety checks, filter change |
These ranges reflect what we’ve quoted in the Seattle market through early 2026. The lower end covers straightforward fixes - a failed capacitor (a small electrical component that starts the compressor) or a thermostat replacement. The higher end accounts for major component failures like a compressor replacement in a heat pump, or jobs where we need to pull permits through the Seattle Department of Construction and Inspections because the work involves electrical panel upgrades or gas line modifications.
Seattle’s wet climate and mild temperature swings create specific wear patterns. We see more condensate drain clogs here than in drier markets because the humidity keeps those lines working overtime. Furnaces in homes near Puget Sound also tend to accumulate corrosion on heat exchangers faster from salt air exposure, which can push a repair toward replacement if the damage is extensive.
What Affects HVAC Pricing in Seattle
- System age and brand. A 15-year-old Trane with a failed compressor usually makes more financial sense to replace than repair. Newer Goodman or Daikin systems often have parts readily available, which keeps labor costs down.
- Home location and access. Crawl spaces in Ballard or Capitol Hill Victorian homes can be tight, adding an hour or two to the job. Rooftop units in downtown condos require coordinated access that we build into the estimate upfront.
- Permit requirements. Seattle requires permits for new gas furnace installations and any electrical work beyond like-for-like replacement. Permit fees run $150-$400 depending on the project scope, and we handle the filing as part of our standard process.
- Seasonal demand. The first cold snap in November and the first warm stretch in June keep our phones busy. Scheduling a tune-up in March or September often means faster appointment times and sometimes promotional pricing.
- Refrigerant type. Older systems running R-22 (Freon) cost significantly more to recharge because that refrigerant is being phased out. Systems using R-410A or the newer R-32 are more economical to service.
- Ductwork condition. Seattle’s older housing stock - especially in neighborhoods like Wallingford or Fremont - often has original ductwork with leaks or insufficient insulation. We always inspect ducts during installation quotes because hidden problems affect system performance and your final cost.
How to Save on HVAC
The most expensive repair is the one you didn’t expecting because a small problem became a system failure. Here’s what we’ve learned saves Seattle homeowners real money over time:
- Schedule tune-ups before peak season. A $95-$235 maintenance visit catches worn capacitors, dirty coils, and refrigerant leaks while they’re still cheap fixes. We find that homeowners who maintain their systems replace them 3-5 years later than those who don’t.
- Ask about the Kingswell Guarantee bundle. When we install a new Carrier, Lennox, or American Standard system, the 365-Day Done Right Promise covers every aspect of the installation. If anything isn’t performing as promised, we come back and correct it at no charge - no arguments, no paperwork battles.
- Consider a heat pump for replacement. Seattle’s moderate climate is ideal for heat pump efficiency, and local utility rebates can offset the higher upfront cost. We size these specifically for your home’s heat loss, which matters more in our damp winters than raw temperature alone.
- Get a written estimate before any work begins. This sounds obvious, but we’ve talked to plenty of Seattle homeowners who got a verbal ballpark that doubled once the technician was in the door. At Coldharbour, the written price is handed to you before a single tool comes out, and it doesn’t change.
- Call for a free estimate on bigger jobs. For installations or complex repairs, we’ll come out, assess your system, and give you a firm number with no obligation. Call us at (817) 402-2972 to schedule.
FAQs - HVAC Cost
How much does AC repair cost in Seattle?
AC repair in Seattle typically costs $175-$765, with most homeowners landing in the $250-$450 range for common issues like capacitor replacement or refrigerant recharges. Compressor failures or electrical board replacements push toward the higher end. Call (817) 402-2972 for a free estimate on your specific system.
Is it cheaper to repair or replace my furnace?
Replacement is usually the better financial choice if your furnace is over 12 years old and the repair exceeds $600, or if you’ve had two major repairs in three years. A new 95% efficiency gas furnace installed in a Seattle home runs $3,800-$6,200, and the energy savings on our cold winter nights start immediately. We always give honest guidance on repair-versus-replace, with the math in writing.
How much does a new AC installation cost in Seattle?
A full AC installation in Seattle costs $4,130-$8,850, with the final price depending on system size (measured in tons), efficiency rating (SEER2), and whether your home needs electrical upgrades or duct modifications. Homes in West Seattle or on Bainbridge Island with ferry-dependent logistics sometimes see slightly higher labor costs. We provide a written, itemized quote before any work begins.
Why are HVAC prices higher in some Seattle neighborhoods?
Neighborhoods with older homes, limited parking for our service vehicles, or steep hillside lots like Queen Anne and Magnolia can add 10-20% to labor time. Permit complexity varies too - Seattle proper has stricter requirements than some surrounding jurisdictions. We build all of this into your upfront written estimate so there are no surprises.
Does Coldharbour charge for estimates?
No - estimates for installation or major repair are always free. A technician comes to your home, diagnoses the issue or assesses your replacement needs, and gives you a written price before any work starts. That written price is guaranteed not to change. Call (817) 402-2972 to schedule your free estimate.
Ready for Your Written Estimate?
We’ve been serving Seattle-area homeowners since 2003, and we’ve learned that the best customer is an informed one. That’s why we put every price and every promise in writing before the work begins - it’s The Kingswell Way, and it’s how we’ve built our reputation one repair at a time.
Whether you need a quick furnace fix before the next cold front, a full AC replacement before summer, or just want to know what your system needs to keep running reliably, we’re here. A live person answers our phones 24 hours a day, 7 days a week - no voicemail trees, no waiting until morning. Our technicians are background-checked, uniformed, and trained on nine major brands including Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard.
Every repair comes with our 365-Day Done Right Promise: a written guarantee that if the repair fails within a full year, we come back and correct it at no charge. No fine print, no arguments.
Call (817) 402-2972 today for your free, written estimate. Or visit our home page to learn more about Coldharbour Heating & Air and The Kingswell Way.
Written by Victor Mancini, Owner at Coldharbour Heating & Air, serving Seattle since 2003.
Pricing reflects the Seattle market as of 2026. Coldharbour Heating & Air offers free estimates - call (817) 402-2972.
What Our Customers Say
"The repair was done well and quickly. Scheduling over the phone was a little clunky and I got transferred twice, but the tech himself was great and on time."
- Brett Haygood"Furnace was short cycling all winter. They diagnosed a bad sensor instead of condemning the whole unit like I feared. Cheap fix, honest call."
- Russ Tiedemann"Thermostat and a weak blower. Fixed both in one visit, explained the guarantee, and didn't leave a mess. I've already recommended them to my neighbor."
- Natalie Esposito