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.

- 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
- 1985
The Day family starts Dayco Heating & Air Conditioning in Kennewick.
- 1990
Ken Day joins the company. Today he’s Dayco’s president.
- 2003
Contracting Business magazine names Bonetta Day its HVACR Woman of the Year and puts her on the July cover.
- 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.”


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.
