The Dayco crew in red company shirts in front of the Dayco shop at 11 N Auburn in Kennewick, holding a 40th anniversary sign, with Dayco trucks on either side

Comfort done right, since 1985

Tri-Cities heating and air

Air Conditioning

A/C repair, tune-ups and new Trane systems

Heating & Furnaces

Furnace repair, tune-ups and new Trane furnaces

Heat Pumps

Heat pump repair and new Trane dual-fuel systems

Commercial HVAC

Rooftop units, build-outs and service contracts

See your installed price in 2 minutes

Answer a few questions about your home and see fully installed prices for four Trane systems. No phone number or email needed.

  • Equipment, installation labor and manufacturer warranty included
  • Pay in full or see the monthly payment
  • A home visit confirms the details before any work starts
Get My Price

Rather talk it through? Call (509) 586-9464

A crane lifts a new rooftop unit onto a commercial building while a Dayco pickup waits below

Commercial HVAC from the same family shop

Rooftop units set by crane, ductwork for new construction and tenant build-outs, and service that keeps stores, offices and warehouses running.

  • Rooftop unit replacement
  • New construction and tenant improvements
  • Commercial and industrial ductwork
  • Ongoing service and maintenance
A Dayco service van wrapped with the red sun logo and a Trane badge

The Dayco Way, since 1985

Dayco has been family owned and operated in Kennewick since 1985. We install every system the Dayco Way: done so that anyone at Dayco can recognize it was installed properly.

Today that means about 30 service vehicles, a technician on call 24/7, and active business licenses in 22 cities and counties, from Walla Walla to Yakima and Moses Lake.

What customers say

4.9 ★ from 1,111 Google reviewsRead them on Google

  • “You are ‘Top-Notch’ people. I feel truly privileged that I was able to have you work on our home. Thank you a million times over. PS. Awesome customer service!”

    McConnell Family

  • “Dan Garcia was very kind and compassionate… explained my choice in terms that I could understand. The installation staff came when they were scheduled and were very polite and professional.”

    Rose-Marie Hadeed

  • “Just a note to let you know how considerate and kind your service tech was yesterday. He didn’t seem to mind all the stuff he had from the dogs and was very gentle with them.”

    Helen Hendrickson

Maintenance plans from $18 a month

Four plans, from a yearly Precision Tune-Up to two years of Premier coverage, to catch problems before the first 100° day or the first freeze.

  1. Dayco Premier 2-year plan
  2. Diamond
  3. Gold
  4. Precision Tune-Up
Compare plans

Serving the Tri-Cities and beyond

Tri-Cities

Kennewick, Richland, Pasco, West Richland, Benton City

Yakima Valley

Prosser, Grandview, Sunnyside, Zillah, Yakima, Union Gap, Selah, Moxee

Columbia Basin

Connell, Mesa, Othello, Mattawa, Moses Lake, Ephrata

Walla Walla Valley

Walla Walla, College Place

The online instant quote covers the Tri-Cities and most of the Yakima Valley today. In Walla Walla, College Place, Selah, Union Gap and the northern Columbia Basin, call and we’ll price your system after a home visit.

All service areas

No heat? No cooling? Call now.

Whether it’s 2 PM or 2 AM, a Dayco technician is on call.

Book by phone on this preview

Online booking runs on ServiceTitan, which only opens on Dayco’s registered website (daycoheating.com). On this preview, call the office and we’ll set up your appointment.

Call (509) 586-9464