The Dayco Way, since 1985

Dayco is a third-generation, family-owned HVAC company that has served this community for more than 40 years. We’re known for red-carpet treatment, real relationships and doing the job right.

The Dayco crew in red company shirts lined up outside the shop at 11 N Auburn in Kennewick, holding a carved wooden sign that reads “Dayco Heating & Air, 40th Anniversary, Est. 1985”
  • 1985family owned in Kennewick since
  • 1,111Google reviews, rated 4.9
  • ~30service vehicles on the road
  • 22cities and counties licensed
  • 24/7technician on call

What we stand for

People over everything
We lead with empathy, loyalty and respect for our customers, our team and our community. We treat every customer like family, and we believe the way we treat people matters as much as the work we do.
Built on trust
We earn it every day through integrity, transparency and follow-through. We show up when we say we will, communicate clearly, offer upfront pricing, stand by our work and make things right.
Comfort done right
Technical skill and attention to detail, from being a Trane Comfort Specialist to advanced solutions like Aeroseal. Our technicians take pride in getting it right the first time and never leave a job unfinished.
Always ready, always growing
Whether it’s 2 PM or 2 AM, our 24/7 service means we’re there when it matters most. Behind the scenes we keep training and refining how we work, so we can keep showing up for you.

Forty years in Kennewick

  1. 1985

    The Day family starts Dayco Heating & Air Conditioning in Kennewick.

  2. 1990

    Ken Day joins the company. Today he’s Dayco’s president.

  3. 2003

    Contracting Business magazine names Bonetta Day its HVACR Woman of the Year and puts her on the July cover.

  4. 2025

    Forty years. The crew lines up outside the shop at 11 N Auburn for the anniversary photo.

A local Business Today profile of the Day family ran under the headline “Growing Kennewick firm enjoying best days.”

Framed Contracting Business magazine cover from July 2003 showing Bonetta Day of Dayco Heating & Air, Kennewick, smiling in front of three technicians, with an “HVACR Woman of the Year Award 2003” badge
Contracting Business, July 2003: HVACR Woman of the Year.
Dayco team members in red company shirts at a training session in the shop’s meeting room

What “the Dayco Way” means

When we install equipment, we do it so that anyone at Dayco can recognize it was installed properly: safely, and working at its highest possible efficiency.

We offer a full range of HVAC services, including installation, maintenance, duct sealing, repairs and indoor air quality. As a Trane Comfort Specialist, our technicians are trained not just to fix systems but to explain them clearly and recommend what’s best for the long-term health of your home.

Washington contractor license DAYCOI*107LO · UBI 601-232-711

Meet the team

  • Ken Day

    President

    With Dayco since 1990

  • Justin Dodd

    Commercial Manager

  • Noe Barragan

    Commercial Project Manager

  • Katrina Dixon

    Residential New Construction / Commercial Coordinator

  • Mike Borrego

    Service Manager

  • Dan Garcia

    Sales Manager

  • Raul Castro

    Residential Retrofit Manager

  • Brandy Solano

    Office Service Manager

  • Paul Valencia

    Comfort Consultant

  • Brenda Stutzman

    Office

    20 years with Dayco

Proof of concept: names, titles and headshots come from the current Dayco website. Confirm the current team and each person’s consent before launch.

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