(667) 266-3678

AC Installation
in Seattle
The Right System, Installed The Right Way

Whether your home has never had AC or you’re ready for a new system, Cascadia Comfort helps you choose the right fit and installs it correctly the first time. Free in-home estimates with no obligation.

Why Install Air Conditioning in Your Seattle Home?

The Pacific Northwest has a reputation for mild weather, and for most of the year that holds true. But Seattle summers have changed. Heat waves are more frequent, longer, and more intense than they were a decade ago. The 2021 heat dome pushed temperatures in the greater Seattle area past 100°F, and events like that are no longer once-in-a-generation outliers.

A home without air conditioning isn’t just uncomfortable during those stretches. It can be genuinely dangerous, especially for young children, elderly family members, and anyone with respiratory or cardiovascular conditions.

Beyond safety, there are practical reasons homeowners are investing in AC now:

  • Remote work means more hours spent at home, where indoor comfort directly affects productivity
  • Home values are increasing for properties with central air or modern HVAC systems
  • Ductless mini-splits and heat pumps provide both cooling and heating, replacing or supplementing older systems
  • Modern systems are significantly more energy efficient than equipment from even 10 years ago
  • Washington State utility rebates and federal tax credits can offset a portion of installation costs

If your home doesn’t have AC, now is the right time to change that before the next heat wave catches you unprepared.

Three Reasons Homeowners Delay AC Installation (And Why They Shouldn't)

01

“Seattle Doesn’t Get That Hot”

This was more accurate 20 years ago. Climate patterns in the Pacific Northwest have shifted, and what used to be a few warm weeks in August now regularly includes multi-day heat events that push indoor temperatures well past comfort, and safety, thresholds. Waiting until a heat wave is already underway to look into AC installation means competing with every other homeowner in the region for a limited number of available appointments.

02

“I’ll Wait Until I Can Afford It”

AC installation is an investment, and it’s reasonable to plan for it. But delaying often costs more in the long run. Portable and window units purchased as stopgaps add up quickly, don’t cool effectively, and do nothing for your home’s value. Many homeowners are also surprised to find that financing options, utility rebates, and federal efficiency tax credits make a permanent system more accessible than expected. A free in-home estimate gives you the real number without any commitment.

03

“I’m Not Sure Which System Is Right for My Home”

This is the most legitimate reason to pause, and it’s exactly why we start with a free in-home consultation rather than a phone quote. The right system depends on whether your home has existing ductwork, your square footage, your heating and cooling goals, and your budget. Installing the wrong system type leads to poor performance and wasted money. Getting a professional assessment first costs you nothing and ensures you’re making a confident, informed decision.

First-Time AC Installation and Homes Without Existing Ductwork

2-YEAR SATISFACTION GUARANTEE

10-YEAR PARTS & LABOR WARRANTY

One of the biggest questions homeowners face is which type of system makes sense for their home. Cascadia Comfort installs all three major residential AC system types, and we’ll recommend the right one based on your home’s layout, existing infrastructure, and budget.

Central Air Conditioning (Ducted) If your home already has ductwork from a forced-air furnace, adding central AC is often the most straightforward path. A new air conditioning unit connects to your existing system, giving you whole-home cooling through the vents you already have. We assess duct condition as part of the installation process to make sure your new system can perform efficiently.

Ductless Mini-Split Systems For homes without existing ductwork, or for additions, garages, and rooms that need independent temperature control, ductless mini-splits are an excellent solution. These systems consist of an outdoor compressor unit and one or more indoor air handlers mounted on the wall or ceiling. Installation is minimally invasive, and each zone can be controlled independently for better comfort and efficiency.

Heat Pump Systems Heat pumps are the most versatile option and have become increasingly popular in the Seattle area. They provide both heating and cooling from a single system, making them an ideal replacement or supplement to older heating systems. Modern cold-climate heat pumps perform efficiently even when outdoor temperatures drop well below freezing, which makes them a strong fit for the Pacific Northwest’s shoulder seasons.

We’ll walk you through all three options during your free in-home estimate and give you a clear recommendation with the reasoning behind it.

Cascadia Comfort serves homeowners throughout the greater Seattle area, including Bothell, Everett, Lynnwood, Bellevue, and surrounding communities.

Frequently Asked AC Installation Questions

How do I know which type of AC system is right for my home?

It depends on whether you have existing ductwork, your home’s size and layout, and what you want to spend. We assess all of that during a free in-home consultation and give you a clear recommendation before you commit to anything.

Costs vary depending on the system type, home size, and whether any ductwork or electrical work is needed. Our in-home estimates are free and come with no obligation, so you’ll have a real number before making any decisions.

Most installations are completed in one day. Larger projects involving new ductwork or electrical upgrades may take longer. We’ll give you a clear timeline during your estimate.

Yes. Depending on the system and your utility provider, you may qualify for rebates through Puget Sound Energy or Snohomish PUD, as well as federal tax credits for qualifying high-efficiency systems. We’ll point you toward available programs during your consultation.

In many cases, yes. Modern cold-climate heat pumps handle both heating and cooling efficiently, and many homeowners use them as a primary system with their existing furnace as a backup for the coldest days. We’ll assess your current setup and give you an honest picture of what makes sense.

What AC Installation Looks Like With Cascadia Comfort

Here’s what you can expect from the installation process, start to finish.

Free In-Home Estimate Everything starts with a no-obligation visit to your home. We assess your existing ductwork (if any), measure your space, evaluate your insulation and layout, and discuss your comfort goals and budget. This is where we determine the right system type and size. We don’t quote over the phone because a phone quote without a site visit leads to wrong-sized equipment and disappointed homeowners.

System Selection and Scheduling Once you’ve reviewed your estimate and decided to move forward, we handle equipment ordering and scheduling. We work to get you on the calendar as quickly as possible, and we’ll coordinate around your schedule.

Permits and Code Compliance AC installation in Washington State requires permits in most cases. Cascadia Comfort manages the permitting process so your installation is done to code, your warranty is protected, and there are no issues if you sell your home down the road.

Installation Day Our technicians arrive on time with the equipment and tools needed to complete your installation. For central AC, this includes connecting to your existing air handler, setting the outdoor condenser, and verifying duct integrity. For mini-splits, we mount indoor units, run refrigerant lines, and connect the outdoor compressor. For heat pumps, we handle full system setup including integration with your existing thermostat or a new smart thermostat.

System Commissioning After installation, we test the system fully, verify refrigerant charge, check airflow at every zone or vent, and confirm the thermostat is communicating correctly. We don’t consider the job done until the system is running exactly as it should.

Homeowner Walkthrough Before we leave, we walk you through how to operate your new system, what settings to use for efficiency, and what basic maintenance keeps it running well. We’ll also let you know what to watch for and how to reach us if anything comes up.

What Our Customers Say

Google star 1Google star 2Google star 3Google star 4Google star 5
Great company and people to work with. They made sure all my concerns were heard, laid out options for me, and very knowledgeable overall. Regis and Riley did an amazing job installing my furnace and heat pump. Exceptional to work with them, highly recommend!
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G I
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There are several things I like about Cascadia Comfort. They answer their phone! They are easy to work with and do great work, all for reasonable prices.
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Kim Hensley
Google star 1Google star 2Google star 3Google star 4Google star 5
Our first experience with Cascadia Comfort was a very positive one. We suspected a refrigerant pipe was leaking from our existing heat pump system causing damage to a window. We called Cascadia Comfort and they immediately scheduled an appointment for us with Riley. Riley arrived right on time and got to work to identify the problem. He was extremely thorough and kept us informed at all times. He did need to return a second time to do the repairs, but he was able to finish ahead of schedule. At all times, communication was clear and we were provided with up front reasonable costs for services. Although Riley did not find the heat pump piping to be the cause of the damage to our window, he did find other concerns that he promptly addressed and repaired that will save us from future problems with our system, and more costly damages than replacing a window. Thank you Riley and Cascadia Comfort for your prompt response and professional service. We will definately be using your company for all our future needs with our heat pump system.
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Kathleen Walsh
Google star 1Google star 2Google star 3Google star 4Google star 5
I would definitely recommend Cascadia Comfort. Fantastic, small business I’m more than happy to support! Everyone was friendly on the phones and in person. Riley, is a super cool guy and fixed our leaking mini split that was installed incorrectly by another company. He also did yearly maintenance on the whole system. Thankful for his great attitude and work ethic. I’m very picky about my floors and he didn’t hesitate to wear shoe covers and clean up if he made a mess. Adam and Riley seem extremely knowledgeable in HVAC systems and I would be more than happy to use them again if the need were to arise.
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Kelly Parker
Google star 1Google star 2Google star 3Google star 4Google star 5
Fantastic and friendly service. Appreciated the foreside and ability to fix the problem. Thanks.
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Senka Agic Bergman profile picture
Senka Agic Bergman
Google star 1Google star 2Google star 3Google star 4Google star 5
Cascadia Comfort came to service our HVAC system as well as to provide estimates for some work we would like done. Scheduling was a breeze and when I had to cancel the original appointment due to travel, they were very accommodating. Our technician called when he was an hour out and arrived promptly. He was very informative and thorough as we went through the scope of work. The maintenance on our furnace indicated the need for replacing a part, and the technician explained not only the function of that part, but also showed me the multimeter reading. He had the part on the truck and was able to take care if it immediately. We are very happy to have had Cascadia Comfort to provide the maintenance. We would definitely have them perform this work in the future. It will take a few days to get the estimate back for additional work, so I am not able to comment on that pricing, but the maintenance and repair price and part seemed reasonable!
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Lea Ellis
Google star 1Google star 2Google star 3Google star 4Google star 5
Very friendly and helpful team
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Sai Rahul Kasula
Google star 1Google star 2Google star 3Google star 4Google star 5
We recently booked an AC and furnace tune-up through Groupon with Cascadia Comfort, and we had a great experience from start to finish. Kyle was very professional, knowledgeable, and courteous throughout the service. His communication was top-notch, and he took the time to explain everything clearly and answer our questions. The entire process was smooth, efficient, and hassle-free. We really appreciated the excellent customer service and attention to detail. We would definitely recommend Cascadia Comfort to anyone looking for reliable HVAC service and will gladly use them again in the future.
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Manali
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Great service, friendly, timely.
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Jay Anderson profile picture
Jay Anderson
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They are the best! Our HVAC system was leaking, and Riley from the company came to our home the very same day. He was extremely knowledgeable, quickly identified the issue, and shared many helpful tips on how to maintain our HVAC system for the long term. We really appreciated getting a same-day appointment, which made the whole experience even better. The team was professional, courteous, and efficient from start to finish. I highly recommend them!
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Aman Mahajan