24/7 Emergency Service

Commercial
HVAC, Plumbing & Electrical
Greater Seattle Area

Need commercial service?
Day & Nite’s certified technicians keep your business running —24/7 Round the Clock!

  • ✓ Honest Upfront Pricing
  • ✓ Minimal Disruption to Your Operations
  • ✓ Lifetime Workmanship Guarantee
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Commercial Services • No Obligation
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NATE & EPA certified technicians ready day or nite
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Free Second Opinion On Any Commercial Quote + Lifetime Workmanship Guarantee.

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Our Commercial Services

Commercial HVAC, Plumbing & Electrical

Day & Nite’s NATE- and EPA-certified technicians have served Seattle businesses since 1954. From emergency repairs to planned maintenance contracts, we deliver expert commercial service with minimal disruption to your operations.
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Commercial HVAC

Reliable heating and cooling is essential for employee comfort, equipment protection, and customer experience. Day & Nite handles all commercial HVAC needs:

  • Commercial AC installation & repair
  • Commercial furnace & heat pump service
  • Ductless & multi-zone systems Rooftop unit (RTU) service
  • Preventive maintenance contracts
  • 24/7 emergency HVAC service
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Commercial Plumbing

From single fixture installs to complete commercial repipes, our licensed plumbers handle every plumbing project efficiently so your business stays running:

  • Pipe repair & replacement
  • Commercial water heater service
  • Drain & sewer cleaning Toilet & fixture installation
  • Backflow prevention & testing
  • 24/7 emergency plumbing
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Commercial Electrical

Our licensed electricians handle everything from generator installation to panel upgrades and lighting projects for businesses of all sizes:

  • Panel upgrades & electrical repairs
  • Generator installation & service
  • Commercial lighting installation
  • Surge protection systems
  • Smoke & CO detector installation
  • 24/7 emergency electrical
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Customer Reviews

What Seattle Businesses Say

Businesses across Greater Seattle count on Day & Nite for reliable commercial service.
Commercial Offers

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FAQs

Commercial Service Questions? We Have Answers.

From our certified commercial technicians.

Yes — Day & Nite has served both residential and commercial clients since 1954. Our commercial team handles everything from small office buildings to multi-tenant commercial properties, restaurants, retail locations, and industrial facilities throughout Greater Seattle.
We offer 24/7 emergency service for commercial clients. A live person answers every call — day or nite — and we dispatch certified technicians as quickly as possible. Our fully stocked service vehicles mean most commercial emergencies can be resolved in a single visit.
Yes — Day & Nite offers planned maintenance programs for commercial HVAC, plumbing, and electrical systems. Regular maintenance prevents costly breakdowns, extends equipment life, keeps your systems code-compliant, and provides predictable service costs for your budget.
All our technicians are fully licensed, NATE- and EPA-certified, background-screened, and drug-tested. As a Bryant Factory Authorized Dealer, our HVAC technicians receive ongoing factory training. All work is performed to current code and backed by our Lifetime Workmanship Guarantee.
Absolutely — we understand that downtime costs money. For planned projects, we schedule work at times that minimize disruption to your operations, including early morning, evenings, and weekends. We keep tidy job sites and clean up completely after every visit.
Day & Nite serves commercial clients throughout the Greater Seattle Area including Lynnwood, Everett, Marysville, Bothell, Woodinville, Kirkland, Redmond, Bellevue, Seattle, and 25+ communities across King and Snohomish Counties.

Keep Your Business Running — Call Day & Nite

Certified technicians available 24/7 • Minimal business disruption • Upfront commercial pricing