Sound Comfort is an authorized Mitsubishi Electric Diamond Contractor. You get factory-trained installation and Mitsubishi’s best home warranty: 12 years on parts and 12 years on the compressor when we install and register your system. Our shop is right here in Lake Stevens.




Mitsubishi Electric trains and backs a network of independent installers it calls Diamond Contractors. Here’s what that means for your home.
We train directly with Mitsubishi Electric and keep up with their product, service and installation updates.
12 years on parts and 12 years on the compressor for qualifying systems we install and register.
We run a load calculation so your outdoor and indoor units match your rooms, not a guess based on the old unit.
Line sets, drains, wiring and startup are done the way Mitsubishi spells out, so the system runs like it was designed to.
Mitsubishi requires registration within 90 days. We take care of it, so your 12-year coverage never slips through the cracks.
We keep up with Snohomish County PUD and PSE heat pump rebates and point you to the ones you qualify for.
Mitsubishi saves its best warranty for systems installed by contractors it has trained. Same equipment, but up to 7 more years of parts coverage than the standard warranty.
Mitsubishi’s standard warranty when a system is never registered.
When any licensed contractor installs it and it’s registered within 90 days.
When a Diamond Contractor like Sound Comfort installs it in your single-family home and registers it within 90 days.
That’s the best home warranty Mitsubishi Electric offers, and it comes with qualifying systems we install. Your system qualifies when it’s installed by a Diamond Contractor in a single-family home, registered with Mitsubishi within 90 days and owned by the original owner living there. We handle the registration for you.
Ducted Hyper-Heat heat pump: replaces your furnace and AC and runs through the ductwork you already have. It keeps full heating output down to 5°F, so it handles our winters without a backup furnace.
Ductless mini-split: heats and cools room by room with no ductwork. It’s a great fit for older homes, additions, bonus rooms and ADUs.
Multi-zone ductless: one outdoor unit can run up to eight indoor units, so every room gets its own temperature.

“Fantastic service. Service was quick and they kept me informed on what they were doing. Mauro was friendly and didn’t try to upsell any services that weren’t required”


“Mauro was incredible. Super personable, explained things in a clear way, and did great work on our old furnace. Would highly recommend!”
“Service was awesome. Fast and efficient and Mauro was a delight to work with. I would recommend them to everyone!”

Free in-home quote and load calculation
Pick your Mitsubishi system, with the price in writing
Installed, tested and registered with Mitsubishi
We pull the permits, haul away your old equipment, register your system with Mitsubishi and show you how your new controls work before we leave. Every installation comes with our 100% satisfaction guarantee.


A new Mitsubishi system is a big purchase, and comfort shouldn’t have to wait. You can spread the cost of a heat pump or mini-split into monthly payments through Wisetack, with 0% interest plans for qualifying customers.

Every Mitsubishi system we install comes with our 100% satisfaction guarantee. If something about your new system isn’t right, we’ll come back and make it right at no extra cost.



It’s Mitsubishi Electric’s program for independent HVAC contractors who train directly with Mitsubishi and keep up with their ongoing product, service and installation training. A lot of homeowners call it a Mitsubishi Diamond dealer. Sound Comfort is part of that network, and our shop is right here in Lake Stevens.
Mitsubishi covers parts for 12 years and the compressor for 12 years on qualifying residential systems we install and register. Labor isn’t part of Mitsubishi’s warranty, so every install also includes our 10-year labor warranty and our lifetime craftsmanship warranty. You can drop the labor warranty to save money.
No. It comes with qualifying Mitsubishi systems we install. There’s nothing extra to buy, as long as the system gets registered on time, and we take care of that.
Your system needs to be installed by a Diamond Contractor in a single-family home, registered with Mitsubishi within 90 days of installation, and owned by the original owner living in the home. We register every qualifying system for you. If your home doesn’t fit those terms, we’ll tell you which warranty applies before you buy.
Yes. Mitsubishi Hyper-Heat models keep full heating output down to 5°F, and our cold snaps rarely get that low. That’s why a Hyper-Heat system can heat your home all winter without a backup furnace.
If your home already has ductwork, a ducted Mitsubishi Hyper-Heat heat pump can replace your furnace and AC and use the ducts you have. No ducts, an addition, or a few rooms that never feel right? A ductless mini-split heats and cools room by room. We’ll look at your home and recommend the one that fits.
A ducted Mitsubishi Hyper-Heat heat pump system starts around $16,000 before sales tax. Ductless pricing depends on how many rooms you want to heat and cool. Try our HVAC cost calculator for a ballpark, then we’ll give you a written price after a free in-home visit.
Often, yes. Snohomish County PUD and Puget Sound Energy both offer heat pump rebates, and the amounts depend on what heats your home now. Programs change often, so check the links below. Wisetack financing offers monthly payments with 0% interest for qualifying customers.
Warranty details and heat pump rebates for Snohomish County homeowners:
