24/7 Emergency Service

Light Commercial HVAC

For light commercial HVAC requirements in Lynnwood, WA and surrounding areas, call on Day & Nite Plumbing & Heating, Inc. at (425) 775-6464 for Red Carpet Service across Lynnwood, WA and surrounding areas. No matter the challenge, we minimize disruption of your facility and ensure swift turnaround. Our NATE- and EPA-certified, factory authorized technicians arrive on time, prepared with state-of-the-art technology and our signature red mat. Organizing the placement of tools, access to sheet metal fabrication services, and a lifetime workmanship guarantee are just a few examples of how we at Day & Nite Plumbing & Heating, Inc. go above and beyond at every opportunity.

(425) 775-6464Request Service

Expert Light Commercial HVAC Services

Family and locally owned and operated, Day & Nite Plumbing & Heating, Inc. specializes in light commercial HVAC installation, repair, and maintenance, including rooftop units. We offer free estimates on heating and cooling system replacement and uphold ACCA and PHCC membership. Established in 1954, we remain dedicated to providing the highest quality, most professional services for your commercial facility, handling all makes and models of equipment. Day & Nite Plumbing & Heating, Inc. looks forward to serving your best interests and we’re here whenever you need us, 24/7, for emergency assistance across Lynnwood, Martha Lake, Edmonds, Picnic Point, Bothell, Mill Creek, Mountlake Terrace, Shoreline, and Kenmore, WA.

Keep your business’s heating and cooling systems running efficiently by calling the commercial HVAC experts at Day & Nite Plumbing & Heating, Inc. in Lynnwood, WA today!

RTU (Roof Top Units), Commercial Boilers, Gas Piping–whatever it is we offer full service for commercial properties. Providing services from everything from multi-story multi-unit buildings to adult care facilities and commercial spaces. Free estimates are available for replacements, new installations, and maintenance contracts.

As your heating and cooling system ages, it can lose efficiency and even break down entirely. So when you need commercial HVAC service in Snohomish & King Counties, you can count on Day & Nite Plumbing & Heating, Inc. to get the job done right. Our skilled contractors are dedicated to serving your HVAC-related needs, and our commitment to customer satisfaction makes us an excellent choice for clients who value quality.

Commercial HVAC Repair in Lynnwood, WA | Commercial HVAC Service Mountlake Terrace, WA | Commercial HVAC System Installation Kenmore, WA


Our commercial HVAC services run the gamut from installations to maintenance to repairs. Our philosophy is that no job is too big or too small, and no matter the size or scope of your project, we pledge to complete it on time and within budget. So whether you need a minor fix or a complete HVAC system overhaul, trust our team to provide you with accurate, dependable commercial HVAC service.

We invite you to schedule an on-site estimate to learn more about how our commercial HVAC services can benefit you. Call today to set up an appointment.

(425) 775-6464

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(425) 775-6464

*Includes Bryant & Utility Rebates & Day & Nite Coupon. Offer good only in our service area. Certain rules and restrictions may apply.

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No Payments No Interest for up to 6 months With Approved Credit

(425) 775-6464

Subject to credit approval. Cannot be combined with any other offer. Call for more details.

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$30 Off Air Conditioner or Heat Pump Tune-Up

(425) 775-6464

Subject to credit approval. Cannot be combined with any other offer. Call for more details.

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M. Lindell

Collin was our tech and he was very knowledgeable answered our questions and what they charged was very reasonable and we are very happy to have water again. I was really impressed by everyone that we dealt with they all were professional and helpful.

S. Lippold

Outstanding Service! Scheduler was pleasant and receptive. Technician (Collin) communicated well, arrived in the agreed upon time frame, diagnosed the problem and fixed the issue quickly. Previously, we had two other companies misdiagnose the problem and one company stand us up for a scheduled appointment. If we have plumbing issues in the future, Day & Night Plumbing will be our first call !

D. Campbell

Very pleased with the professional technician, Donavan, who came out when our water heater quit working. This was the third major problem with this water heater, so we took his advice and replaced it. Thankfully, he was able to also install the new one right away. I had confidence in his advice and ability to do the job. He was thorough and friendly. It was a five star experience. I highly recommend.

E. Rubio

I had the privilege to meet Zach on two separate occasions within a two week span. He was upfront and honest about the work that needed to be done. He is a hard-working, dedicated, professional employee of Day and Nite Plumbing. He explained what needed to be done. I asked questions and he was patient and explained things further so that I truly understood.

D. Lee

The technician was great: he knew exactly what the problem was and fixed it quickly and efficiently. Even when a glitch happened in the repair, he was totally prepared to handle the situation. I will definitely contact Day & Nite Plumbing for future problems. Thank you!

D. Thomas

We had a great experience with Day and Nite from start to finish. Chris was great at the no obligation consult. He explained things clearly and covered everything but didn’t waste our time. They also provided lots of options and thoroughly explained them but never tried to push or up-sell us. Installation was fast and very professional. We will definitely be using Day and Nite in the future.

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Commercial HVAC Service, Commercial HVAC System Installation & Commercial HVAC Repair Mill Creek, WA, Lynnwood, WA, Edmonds, WA, Bothell, WA, Shoreline, WA & Martha Lake, WA

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