Residential and commercial plumbing, heating and A/C services. Serving Snohomish and King Counties since 1954.

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Pre-Season Furnace Special

Save $3,150* On Qualifying Projects

Cozy comfort that won’t bust your budget.

  • Factory Rebates Available up to $1,650*
  • Utility Rebates Available up to $1,500*

*Some conditions and exclusions may apply. Rebates subject to change.

  • Furnaces as low as $47 a month
  • Heat Pumps as low as $61 a month

Salal Credit Union

12 months No Interest/No Payments. Financing Available O.A.C.

Valid through 01-Nov-2017

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Pre-Season Furnace Special Pre-Season Furnace Special (399 KB)

Heating & A/C

Trust your heating and A/C systems to certified technicians.

Water Heaters

Residential, commercial, and tankless water heaters.


Full-service plumbing across a broad range of sub-specialties.

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We care about our customers and stand behind our work.

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Brett was amazing! He was kind and knew his stuff!


Callie Sky


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PlumberTalk Blog

Winter is Coming: Five Tips for Prepping Your Furnace

Monday, October 09, 2017
Winter is Coming: Five Tips for Prepping Your Furnace

Winter is coming, and the last thing you want is to wake up to a freezing house and cold floors because your furnace has conked out. Day & Nite Plumbing & Heating, a top-rated furnace company serving King County, WA with more than 60 years of experience, wants you to enjoy a warm, problem-free winter. Here are five essentials to address when it comes to prepping your furnace for winter - the first two are issues that our experts can handle for you, while the last three are DIY steps you can take on yourself: ...

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Do it right, call Day & Nite!

Day & Nite Plumbing & Heating is a locally owned and operated family business. We care about our customers and stand behind our work. Your comfort and safety are our top priorities.