Seattle, WA neighborhood photo

King County · Marine 4C

HVAC service in Seattle.

NorthPeak's home base. Ballard, Queen Anne, Capitol Hill, Wallingford, Greenwood, West Seattle, Magnolia, and everywhere in between. Nine-minute average truck-to-curb time from the Leary Way shop, two after-hours trucks staffed November through March.

9 min avg

Avg dispatch

Business-hours service calls inside the Seattle zone.

22 min

24/7 emergency

No-heat, no-cooling, gas-smell. We answer in three rings, day or night.

1,240+

Jobs completed

Service, install, and maintenance tickets closed in Seattle since 2014.

24/7 emergency · Seattle(206) 555-0911or office (206) 555-0188

Climate zone · Marine 4C

What Seattle's climate does to HVAC equipment.

Every Puget Sound microclimate runs its equipment differently. What we spec for Seattle isn't what we'd spec 25 miles inland, and it's not what we'd spec on the shoreline. The notes below come from a decade of receipts.

  1. 01

    Marine 4C climate — heat pumps see <40 hours below 25°F in a typical winter; cold-climate inverter systems run rings around resistance backups here.

  2. 02

    High humidity from October through May means evaporator coils and condensate lines want a flush every spring — top reason we get July no-cooling calls.

  3. 03

    Wildfire smoke season (Aug–Sept) drives 40% of our IAQ business; we stock HEPA standalones and MERV-13 filters in the truck through end of October.

Permit office notes

Seattle DCI typical mechanical permit turnaround: 3–5 business days online, same-day for emergency over-the-counter on no-heat replacements. We pull and post.

Recent work

Receipts from Seattle.

A sample of the last few service tickets and installs the Seattle crew has closed out. We're happy to share photos and references on any one.

Jan 2026

Mitsubishi Hyper-Heat retrofit, 1908 Craftsman

3-ton ducted system, gas furnace decommissioned, $1,800 PSE rebate filed.

Dec 2025

No-heat repair, 96% AFUE Trane furnace

Hot surface ignitor, on-site 31 minutes, $284 flat.

Sep 2025

Whole-home IAQ install, MERV-13 + ERV

Wildfire-smoke prep for asthma household in Madrona.

Coverage area

Every Seattle neighborhood we service.

If you're not on the list and you're inside the zip codes below, you're still in-zone — call dispatch and we'll confirm.

Zip codes served98103 · 98105 · 98107 · 98109 · 98115 · 98117 · 98119 · 98122 · 98144 · 98199

Neighborhoods

  • Ballard
  • Queen Anne
  • Magnolia
  • Fremont
  • Wallingford
  • Green Lake
  • Phinney Ridge
  • Greenwood
  • Capitol Hill
  • Madrona
  • West Seattle
  • Beacon Hill
  • Columbia City
  • Mount Baker
  • Northgate

Landmarks

  • Leary Way shop (HQ)
  • Ballard Bridge
  • Discovery Park
  • Green Lake
  • West Seattle Junction

From the neighborhood

Real calls. Real receipts.

Five-star average across 400+ Google reviews. We’re happy to email full reviews—or just call the neighbor whose house has our yard sign and ask.

★★★★★
Furnace died at 6am with two toddlers in the house. Mike was on the curb in 22 minutes, had the ignitor in his truck, and we had heat by 7:30. Charged exactly what he quoted.
★★★★★
Got three bids on a heat pump. NorthPeak was the only crew who measured our ductwork before quoting and who told us the Energy Trust rebate would cover $1,800 of it. They were right.
★★★★★
AC stopped cooling during the August heat dome. Same-day call, capacitor swap, $284 flat. The tech wore booties in the house and actually answered my question about MERV ratings.

More from NorthPeak

The pages homeowners read before they book.

Locations, pricing, case-study receipts, and the FAQ. The four sections that get visited the most after the home page.

Service area

Locations

Seven Puget Sound cities. Response times, climate notes, the truck route.

Visit

Maintenance & service

Pricing

Three maintenance plan tiers + the full flat-rate price list + GoodLeap financing.

Visit

Project gallery

Case studies

Seven recent installs with equipment, timeline, and warranty receipts.

Visit

Frequently asked

FAQ

Honest answers — heat pump vs furnace, SEER ratings, install timelines.

Visit

Same-day service available

24/7 emergency in Seattle.

Call the emergency line at any hour. We average 22 min truck-to-curb for no-heat and no-cooling calls in Seattle.

24/7 Dispatch

(206) 555-0188

Send us your service request