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Serving Seattle homes & businesses since 1986. Call (206) 555-0176 — 24/7 dispatch →
Est. 1986 · Family-Owned · Seattle, WA

The mechanical trade, done quietly well.

Three generations of HVAC and plumbing along the Puget Sound. We handle heat pump conversions, boiler work, tankless installs, and commercial mechanical — the kind of detail-heavy work you don’t hand to a call-center franchise.

WA Lic CASCAM*792KC
NATE-certified
BBB A+ · 39 yrs
PSE Alliance Contractor
How we work

Fair & Straightforward

Dispatch within3 hrs
Diagnostic fee$95 flat
Waived with repairEvery time
Quote in writingBefore any work
Install warranty10 years
39 yrs
In the PNW
71,000+
Jobs completed
4.9 ★
Google · 1,612 reviews
14
Licensed journeymen
Services

Mechanical trade, full scope.

Residential and light commercial. Puget Sound homes need a steady hand on heat pumps and boilers — and plumbing that doesn’t pretend old houses aren’t old houses.

Heat Pumps & HVAC

Cold-climate heat pump conversions, ductless mini-splits, and traditional gas furnaces. PSE rebate paperwork handled.

  • Mitsubishi Diamond Contractor
  • PSE & federal tax-credit paperwork
  • Full load calc on every install

Boilers & Hydronic

Radiant floor systems, cast-iron boiler replacement, hydronic zone work. Seattle-old-house specialty.

  • Navien · Weil-McLain · Buderus
  • Hydronic zone reconfiguration
  • Radiant tube repair & install

Plumbing

Tankless water heaters, repipes, drain work, fixture install. We do old-house plumbing without destroying the old house.

  • Tankless water heater specialists
  • Full-home PEX repipe
  • Hydro-jetting & sewer camera

Light Commercial & Maintenance

Offices, multi-unit residential, small retail. Scheduled preventive contracts keep systems running 20+ years.

  • Commercial rooftop & split systems
  • Quarterly PM contracts available
  • Cascade Steward Plan: $28/mo residential
Why Cascade

Three generations. One mountain range.

My grandfather founded Cascade in 1986 after twenty years in the pipefitters local. My father took over in 2004 and added the HVAC division. I came on in 2016 to bring in heat pumps and commercial mechanical. Different decades, same crew handbook.

We don’t franchise. We don’t pay commission on upsells. The tech who quotes your boiler today will be the one who answers the call in year nine when it needs a gasket.

— Elias Whitaker, 3rd-generation owner
39 yrs
In business
71K+
Jobs completed
14
Licensed journeymen
4.9 ★
1,612 reviews
Job #SEA-12488
Capitol Hill · 1908 boiler retrofit · Navien hybrid in 2 days
Job #SEA-12467
Ballard · 3-zone ductless heat pump · PSE rebate $4,100 approved
Job #SEA-12449
Queen Anne · Full PEX repipe · galvanized replaced overnight
Process

Straightforward. No theater.

Step One

You Call

Live dispatcher at our Georgetown office picks up. Schedule on the first call.

Step Two

We Show Up

Named tech, on time, in a clean Cascade van. Same face every visit.

Step Three

Written Quote

We inspect, document, and price flat-rate. Rebate paperwork included.

Step Four

Done Well

Clean install, tuned commissioning, 10-year parts + 2-year labor warranty.

Service Area

Puget Sound and the east side.

Seattle
HQ · Georgetown
Bellevue
Under 20 min
Kirkland
Under 25 min
Redmond
Under 30 min
Mercer Island
Under 15 min
Shoreline
Under 25 min
Renton
Under 25 min
Bothell · Woodinville
Under 35 min
What Clients Say

Quietly, steadily earned.

★★★★★

Our 1908 Capitol Hill house had a cranky cast-iron boiler the last three plumbers refused to touch. Elias at Cascade walked the whole zone layout with me, proposed a Navien hybrid conversion, and kept the original radiators in service. Warm house, lower gas bill, and I didn’t lose my radiators. Remarkable trade work.

EB
Eleanor B.
Capitol Hill, Seattle · Boiler retrofit
★★★★★

Three contractors told us a ductless heat pump wouldn’t work in our Ballard craftsman. Cascade came out, did a real load calculation, and installed a 3-zone Mitsubishi system that’s carried us through two cold snaps without issue. PSE rebate was $4,100. These guys know the PNW.

JP
James P.
Ballard, Seattle · Heat pump install
★★★★★

We manage four small multi-unit buildings in Queen Anne. Cascade has handled our preventive maintenance contract for six years. No surprises, clean invoicing, same tech shows up every quarter. They are exactly what a mechanical trade should be.

RA
Rachel A.
Queen Anne, Seattle · Commercial PM
Live Dispatch

Something not right? Tell us about it.

We’ll pick up, book you in, and put a named tech at your door. Same way we’ve done it since 1986.

Cascade dispatch (206) 555-0176
Or Request Online →