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Ductless Mini-Split Installation in Olympia, WA & the South Sound

Serving homeowners across Thurston, Pierce, Mason, Lewis, and South King counties.

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If your house has rooms that never feel right, too hot in summer, too cold in winter, or a wall heater that's on its last leg, ductless might be the fix. Alpine Ductless has installed these systems in homes across Thurston County for years. We know the housing stock here, the weather, and what actually works in a South Sound home.


A ductless mini-split gives you heating and cooling without tearing into your walls for ductwork. It's a good fit for older homes, additions, garages turned into offices, and any room that's never matched the rest of the house.

Certified Master Installer

Licensed, Bonded, Insured

EPA Certified

Licensed Electricians on Staff

Why Choose a Ductless Specialist

Ductless heating system installation is the only thing we do. We're not a general HVAC company that added ductless to the list, we built our business around it.

That focus matters. Our crews have seen enough ductless systems, in enough South Sound homes, to catch things a generalist crew might miss on a system they only install occasionally. Our service techs have caught issues in the field before the manufacturer did.

Many ductless installs need electrical work too, whether that's a new dedicated circuit or a panel check. Because we have licensed electricians on our own team, one company handles the whole job. You're not stuck coordinating between an HVAC contractor and a separate electrician, or waiting on a subcontractor's schedule.

Alpine Ductless technician installing an outdoor mini-split heat pump unit at a home in Olympia, WA
alt text: Ductless mini-split ceiling cassette unit installed in an Olympia, WA home

Where Ductless Systems Go

Ductless units work anywhere you need heating or cooling without running new ducts. Common spots we install:

  • Main living areas, as a whole-home solution
  • Garages converted into offices or workshops
  • Rooms with uneven temperatures, like second floors or south - facing rooms
  • Additions and bonus rooms
  • Sunrooms
  • Outbuildings, sheds, and detached spaces

Homes without existing ductwork are the most common fit, but ductless also works well as a supplement. If one room always runs hot or cold no matter what your main system does, a single indoor unit can solve that without touching the rest of your house.

How Mini-Split Installation Works

Alpine handles ductless heating system installation and mini-split installation from your first estimate through final inspection, so you have one point of contact the whole way through.

The Estimate

One of our consultants comes to your home, looks at the space, and designs a system around your home and your budget. This isn't a five-minute online quote. Every home is different, and sizing a system right matters more than sizing it fast.

Installation Day

A single-zone system usually takes about four hours. Two zones run closer to six. Most jobs wrap up in a day or two. This isn't a remodel, and our crew treats your home that way. Before we leave, we walk you through filter cleaning and basic upkeep, and we clean up completely. The job isn't done in our eyes until you're comfortable with how the system runs, not just when the truck pulls out of the driveway. Call us anytime after with questions.

After Installation

We schedule your required mechanical and electrical inspections and handle the coordination with your municipality, so you're not stuck figuring out permit timelines on your own. Many Thurston County utilities offer rebates for ductless installations, and we manage that process for you where we can.

Why Homeowners Work With Alpine

Ductless makes up about 40% of new heating and cooling installs in Washington right now, compared to 13% nationally. We've been installing these systems since before that shift happened, not after.

Locally Owned in Olympia

We're independently owned and operated right here, not a franchise or a corporate territory. When you call, you're talking to someone who lives in this community too.

One Team, Start to Finish.

The same company handles your estimate, your installation, and anything you need afterward. No call center, no subcontractor, no one else to track down if you have a question.

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What Your Neighbors Say

“We want to express our thanks and appreciation to Alpine Ductless for the flawless installation of our multi-zone Mitsubishi heating and cooling system... All in all, we love, love, love our new heating and cooling system. We noticed right away how much cleaner and fresher the air throughout the whole house had become.”
— Merry and Doug A.
“We won’t call anyone else! Professional, knowledgeable and on-time. Locally owned - great team. I highly recommend you call Alpine Ductless for installation and routine maintenance!”
— Brian R.
“We really appreciated the service we got from this company. Everyone in the team had a level of knowledge, professionalism, and hard work that exceeded expectations. Matt came and gave us our estimate for getting a new heat pump and air conditioning installed, he was able to explain in a common sense approach that we really appreciated. Then the day of the installation Michael and Jordan showed up, they were quick in getting the installation done in half of a day and professional the entire time they were here. After that Everett came and finished the electrical aspect, and answered all of my questions about their service program. I would recommend this team to anyone looking to update their home. Thank you Alpine!”
— Cathy M.

Is Installing It Yourself an Option?

Ductless installs look simple in a ten-minute video. They aren't. The work involves refrigerant lines and dedicated electrical circuits, and both need a permitted inspection before the system's considered done. Get either wrong and it's not just a fix later, it can mean a failed inspection, a voided warranty, or a refrigerant leak that costs more than hiring a pro would have in the first place.

We also get called to repair installs that didn't go right, whether that was a homeowner giving it a shot or another crew's work. If your system isn't running the way it should, we'll take a look and tell you what we find.

Alpine Ductless technician installing an indoor mini-split unit during a home addition in Thurston County

Frequently Asked Questions

Do ductless units take up a lot of space?

No. Indoor units mount on the wall, near the floor, or on the ceiling, and they have a narrow profile that stays out of the way of your furniture.

Are ductless mini-splits a good investment?

For most Thurston County homes, yes. They heat and cool efficiently, and the built-in filtration means cleaner air than an aging duct system tends to provide. What "good investment" looks like for your specific home is something we can walk through during your estimate. See our current cost breakdown.

Will there be inspections after installation?

Yes. Your local municipality inspects for both mechanical and electrical compliance. Mechanical inspections typically happen within 30 days of installation, electrical within 10. We schedule these for you and provide the contact info in case you need to reschedule.

Are there rebates available?

Many Thurston County utilities offer rebates for ductless installations. We handle the process for you where we can, applying the rebate directly to your invoice instead of leaving you to chase paperwork.

What maintenance does a ductless system need?

Clean the air filter about once a month, and plan on a professional tune-up twice a year. Our maintenance guide walks through what you can handle yourself and when it's time to call us. Ask about our Peace of Mind maintenance plan if you'd rather not think about it at all.

Is ductless right for every home?

Not always. If your ductwork is in good shape and your furnace is newer, you may not need it. We'll tell you that during your estimate instead of selling you something you don't need.

Proudly Serving the South Sound

Here's a closer look at three of our most established markets.

Ductless Installation in Olympia

Ductless Installation in Tumwater

Ductless Installation in Lacey

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See what a ductless system could do for your home.

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