Heat pump installation in Mukilteo, handled by a Mitsubishi Electric Diamond Contractor from nearby Lake Stevens. We size it with a load calculation at your home, put the price in writing, and install it cleanly.











Mukilteo's mild, damp winters suit heat pumps nicely, and homes from the 1980s and 1990s are often ready for an upgrade. These are the moments when owners ask us about switching.
If both are past fifteen years, one heat pump can replace the pair and give you heating and cooling from a single system.
Baseboards and wall heaters are costly to run. A heat pump makes the same warmth on far less electricity, room after room.
Bonus rooms, daylight basements and view-window additions often lag behind. Ductless heads can reach them without new ductwork.
Upper floors with big west-facing windows get stuffy by late day. Cooling that matches your heating is a real upgrade.
While walls are open is the easiest time to add refrigerant lines, a new circuit, or a better spot for the indoor unit.
A single inverter heat pump covers winter and summer, and it runs quietly at the part-load speeds most days call for.
Fair question, and we won’t push a system you don’t need. If your equipment can be repaired, we’ll say so. Otherwise we’ll lay out the options at your kitchen table.
Ducted Mitsubishi Hyper-Heat: uses the ductwork you already have and keeps delivering heat in cold snaps, a good match for two-story Harbour Pointe homes.
Ductless mini-split: heads on the wall or in the ceiling, no ducts needed. It suits Old Town cottages, additions and view rooms where trenching ductwork would be a headache.
Dual fuel: a heat pump paired with your PSE gas furnace, which steps in on the coldest nights. Many homeowners like keeping gas as insurance.

Try the calculator on this page for installed prices at three levels, built from the same price book as our written quotes. A few questions about your home, and no email needed.
As a Mitsubishi Electric Diamond Contractor, we install Mitsubishi systems backed by a 12-year parts warranty.
A load calculation looks at your windows, insulation and layout, so the system fits your house instead of just replacing the old one.
We pull the permits, set the equipment, test it on heat and cool, and haul away the old system when we finish.
“I had my 22 year old furnace replaced. I Contacted 7 total Heating companies for a bid. Out of those 7 contractors, Sound Comfort Heating is the BEST in all categories: pricing, customer experience, knowledge and same day installation. Also the installation is seamless. Super clean! Which makes us really happy. I Definitely highly recommend Marco and Carson. I am very thankful for them. I made the best decision because they are amazing.”


“Excellent Service and outcome exceeded our expectations. Highly recommend their service.”
“Hannah was awesome to schedule with! Great service all around!”

We’re a Washington licensed, bonded and insured contractor with a perfect 5.0 on Google from over 200 reviews, and our owner still works in the field.

Free visit with a load calculation
Choose a system from a written quote
Installed, tested and cleaned up
Bluff and view lots can be tight on access, so we plan the outdoor unit, line set route and electrical run with you before install day, not during it.


A new heat pump is a big decision, and monthly payments can ease it. Wisetack offers plans at 0% interest for 12 months to buyers with approved credit, and Klarna is another route. Checking your options takes minutes.

Our installs carry strong coverage, and Mitsubishi Electric systems get extra. Here is what comes with a heat pump from Sound Comfort, so you know exactly what stands behind your investment.





You might catch the Sound Comfort van heading down SR 525 toward Harbour Pointe, or parked at a house near the Old Town waterfront. Wave us down with a heat pump question. Our Lake Stevens shop is close enough for easy follow-up visits.
Price depends on ducted or ductless, how many rooms or zones, and any electrical work. The calculator on this page gives real ranges, and our free in-home quote turns that into a firm number.
A simple ducted swap often takes one to two days on site. Multi-zone ductless, new ductwork or a panel upgrade can run longer, and we explain the schedule before you commit.
We run a load calculation, then choose a model whose output at your local cold design temperature covers the heat your house loses. Copying the old furnace’s size can leave you over or undersized.
Mitsubishi Hyper-Heat systems are built for cold weather and keep their rated heating output down to 5°F. Our dual fuel option adds your gas furnace as extra insurance.
Mitsubishi Electric installs get a 12-year parts warranty, since we’re a Mitsubishi Electric Diamond Contractor. Every install also has our lifetime craftsmanship warranty and 2-year no-lemon guarantee. See our Diamond Contractor page.
Yes. Permits are part of the job. Mukilteo takes applications through its online portal, and electrical permits are issued through Washington L&I. We take care of the paperwork for you.
Rebates may exist through your utility, and programs and rules change. Check Snohomish County PUD’s heating rebates page or Puget Sound Energy’s, and ask us what a quote should include.
Yes. Wisetack offers monthly payments, 0% interest for the first year if you qualify, and Klarna is another option.
Where Mukilteo owners check permits and rebates:
