Residential HVAC Installations • Snohomish & King County

HVAC System Installation Done Right

If you’re replacing a failing system or upgrading for comfort, the outcome depends on how it’s designed and installed. Endeavor Heating & Cooling LLC delivers clean, code-compliant installations with verified commissioning—so your system performs the way it was engineered to perform.

Licensed • Bonded • Insured (WA)
Load Calculations Completed
Startup & Commissioning Verified

Which System Works Best for You?

Most homeowners fall into one of the categories below. During your site visit we confirm sizing, layout, and electrical requirements, then provide clear options based on your goals.

Replacement
Best if your system is failing, unreliable, or you need a fast, code-compliant replacement tied to an inspection or timeline.
Comfort Upgrade
Best if certain rooms run hot/cold, airflow is inconsistent, or you want quieter operation and better temperature stability.
Efficiency Focus
Best if you plan to stay long-term and want lower operating costs with higher-efficiency equipment and verified performance.

Correct sizing

We size equipment using verified measurements and load calculations so the system matches your home and comfort goals—not a guess.

Clean, code-compliant install

Electrical, refrigerant piping, and exterior penetrations are installed neatly, protected properly, and completed to code.

Verified commissioning

Pressure testing, evacuation, charging, and performance verification are completed and documented. Your system is commissioned—not rushed.

Install Reviews from Local Homeowners

Real feedback from customers who hired Endeavor Heating & Cooling LLC for installation or replacement.

“Jesse walked us through the options, sized everything correctly, and the install was extremely clean. You can tell he takes pride in doing it right.”
— Ryan M., Mill Creek
“Our heat pump install went smoothly from start to finish. Everything was explained clearly and the system has been working perfectly.”
— Lisa R., Snohomish
“Very professional install. The outdoor unit placement, wiring, and line routing were all done cleanly and thoughtfully. Highly recommend for installs.”
— Mark T., Everett

What Professional Installation Looks Like

Real installations completed by Endeavor Heating & Cooling LLC. Clean equipment placement, proper clearances, protected line sets, and electrical completed correctly.

American Standard heat pump installed on concrete pad with proper clearances Side view showing clean refrigerant and electrical routing Front view of outdoor unit with wall-mounted disconnect Side view showing neat conduit and exterior finish

What’s Included in a Professional Installation

The equipment matters, but the details determine how it performs. Every installation is completed with a focus on reliability, safety, and long-term performance.

Design & sizing
Measurements, equipment selection, and load calculations completed to match your home and comfort goals.
Site protection & workmanship
Clean work area, protected surfaces, neat routing, and finished penetrations that look professional.
Commissioning & verification
Pressure test, evacuation, charging, safety checks, and performance verification before the job is considered complete.
At the end of the installation, you receive a walkthrough, operating guidance, and warranty registration support.

Why We Verify Sizing Instead of Copying the Old System

Replacing equipment “same size as before” is common. It’s also one of the easiest ways to end up with comfort issues, short cycling, or higher operating costs. We verify sizing with measurements and load calculations so the replacement is based on your home today.

Homes change
Insulation, windows, remodels, occupancy, and usage patterns can change loads significantly over time.
Old sizing may have been wrong
Many systems were oversized or undersized from day one, even if they “worked.” Proper sizing improves comfort and equipment life.
Verification protects performance
We confirm square footage, ceiling height, window data, orientation, and duct configuration before recommending equipment.
In some cases the final equipment size matches the existing system. The difference is that it’s confirmed with data.
System & code compliance
We verify electrical capacity, clearances, manufacturer requirements, and local code before finalizing options.
Clear options
You receive written options that explain efficiency, comfort features, and layout differences so you can choose confidently.
This extra step protects your comfort, reduces surprises, and helps ensure smooth inspections.

Our Installation Process

  1. Site visit with photos, measurements, and comfort goals
  2. Load calculations and system design matched to your home
  3. Clear written proposal with options
  4. Professional installation with site protection
  5. Commissioning, walkthrough, and manufacturer registration

10-Year Labor & Parts Coverage

Qualifying installations include a 10-year labor and parts warranty, providing long-term protection beyond standard manufacturer coverage. Coverage depends on equipment selection, proper installation, and registration. Details are reviewed clearly during the proposal process.

The goal is simple: protect the investment and make expectations clear before work begins.

Who You’re Working With

I’m Jesse, owner of Endeavor Heating & Cooling LLC. I personally review every load calculation, system selection, and installation plan before work begins. Endeavor was built around one standard: design it correctly, install it cleanly, and verify performance before we call it complete.

If we install your system, it’s sized, laid out, and commissioned the same way I would expect in my own home.

Ready to Get Clear Options and a Clean Install?

Schedule a site visit. We’ll confirm sizing, review layout constraints, and provide options you can choose from confidently.

Schedule Your Estimate
Prefer to book online? Use the link above.