Heat Pump Installation in Kirkland, WA
One system for heating and cooling, backed by a manufacturer-matched labor warranty and 24/7 emergency response.
Northwest Thermal Solutions installs and replaces heat pump systems for homeowners across Kirkland, Bellevue, Redmond, Issaquah, and the surrounding King and Snohomish County area, backed by a manufacturer-matched labor warranty (12 years on Mitsubishi, 10 on Trane and American Standard) and 24/7 emergency response.
Heat pump services for Kirkland-area homeowners.
New Installation
Pairing with existing ductwork or standing on its own, sized and installed to spec.
System Replacement
Full swap-out of an aging or underpowered heat pump, with a documented startup.
Diagnostic & Repair
Short-cycling, weak output, or trouble switching modes, diagnosed, not guessed at.
Seasonal Maintenance
Runs nearly year-round in both directions, keeping it maintained keeps your warranty intact.
Signs you may need heat pump repair or replacement.
A heat pump usually gives you warning signs before it fails outright. If you notice any of these, a diagnostic visit tells you whether a repair will hold or whether replacement is the smarter long-term call. Either way, you get a straight answer, not an upsell.
Schedule a diagnostic visit →Weak or inconsistent output
Struggling to keep up in either mode, or trouble switching cleanly between heating and cooling.
Rising energy bills
A noticeable increase without any change in how you use the system.
Short-cycling
The system turns on and off repeatedly instead of running a full cycle.
An aging system
Old enough that repairs are becoming more frequent or more expensive to keep making.
Mitsubishi, Trane, and American Standard, never a budget-tier unit.
Mitsubishi
12-year parts matched with 12-year labor. Often the choice when pairing central heat pump performance with ductless mini-split zones.
Trane
10-year parts matched with 10-year labor. Quiet, variable-speed performance built for Pacific Northwest homes.
American Standard
10-year parts matched with 10-year labor. The same equipment as Trane, sold under a second name.
Manufacturer-matched labor warranties, backed by real credentials.
A heat pump runs harder than a seasonal system, so we don't treat the labor warranty as an afterthought.
No service charge on covered calls.
Neglect voids most manufacturer warranties anyway, so ours simply matches what the manufacturer already backs, in writing.
| Brand | Parts | Labor |
|---|---|---|
| Mitsubishi | 12yrs | 12yrs |
| Trane | 10yrs | 10yrs |
| American Standard | 10yrs | 10yrs |

Heat pumps carry the highest stakes of anything we install.
A mistake shows up in both your heating bill and your cooling bill. That's why Mark and Vlad stay personally involved in every job.
A heat pump has to get commissioned correctly in both directions.
Often the deciding factor when weighing cost against another repair.
PSE figures depend on your system and, in some cases, household income. Snohomish PUD covers qualifying heat pump upgrades from electric-resistance heat. We handle the paperwork and apply the discount upfront, so the rebate lowers your invoice instead of arriving as a reimbursement check.
Ask about your rebate →Real reviews, not written by us.
“Mark and the crew did an awesome job by replacing our old HVAC system with a more efficient one. They also suggested changes to cool the upper floor that have worked wonders since installation…”
“They deliver on a promise! They were courteous and professional. They left the worksite cleaner than when they came.”
“Mark and crew did an excellent job repairing our mini-split. He does quality work for a fair price, and talked me through the process to make sure I understand the problem…”
Answered plainly, like a contractor would.
Real answers to what homeowners ask before they call.
What is a heat pump?+
What's the difference between a mini-split and a heat pump?+
What's the difference between an AC and a heat pump?+
How does the manufacturer-matched labor warranty work?+
How much does heat pump installation cost in Kirkland?+
Ready for one system that heats and cools?
We serve Kirkland, Bellevue, Redmond, Issaquah, and the surrounding King and Snohomish County area.