24/7 Round the Clock Plumbing, Heating, Cooling, and Electrical Experts
Serving the Greater Seattle Area
We Are Here For You! Request Service
"*" indicates required fields
4.8
4.4
A+Family-owned and locally operated, Day & Nite Plumbing & Heating, Inc. is dedicated to quality. Established in 1954, we continue to ensure unsurpassed value, integrity, and innovation on every job as the leading plumbing and cooling contractors in Seattle, WA. We service King and all of Snohomish County.
Check Out Our Special Offers
No Payments, No Interest 
For up to 12 Months O.A.C - On Furnaces, Heat Pumps, Boilers, and ACOFFER GOOD ONLY IN OUR SERVICE AREA
*Not valid with any other offer. Some restrictions may apply. Limit one coupon per household. Expires June 30, 2026.
Do it Right-Call Day & Nite 425-224-6452
Free Estimates 
On Heat Pumps, Furnaces, Tankless Water Heaters, AC, Ductless Heat Pumps, and More!OFFER GOOD ONLY IN OUR SERVICE AREA
*Not valid with any other offer. Some restrictions may apply. Limit one coupon per household. Expires June 30, 2026.
Do it Right-Call Day & Nite 425-224-6452
Free Furnace 
With The Purchase of An AC or Heat Pump*While supplies last. Exclusions apply. Cannot be combined with any other offers. Call for details.
OFFER GOOD ONLY IN OUR SERVICE AREA
*Not valid with any other offer. Some restrictions may apply. Limit one coupon per household. Expires June 30, 2026.
Do it Right-Call Day & Nite 425-224-6452
Free Second Opinion! 
Do it right–call Day & NiteIf you had a quote from another company, present your quote
to our technician and we will provide a second
opinion at NO CHARGE*
*Some restrictions and limitations apply. If work needs to be done prior to providing an
estimate you may be quoted for that work first before any other estimate is given.
OFFER GOOD ONLY IN OUR SERVICE AREA
*Not valid with any other offer. Some restrictions may apply. Limit one coupon per household. Expires June 30, 2026.
Do it Right-Call Day & Nite 425-224-6452
Best Service
We Clean Our Work Area
We Treat People the Way We Want to Be Treated
We Protect Your Property
Best Guarantees
Lifetime Workmanship Guarantee*
Warranties on Our Work*
Weekly Training
Best Peace of Mind
Background-Screened Technicians
Drug-Tested Technicians
Uniformed Technicians and Identifiable Vehicles
*Some limitations & restrictions may apply.
Financing Made Simple
Don’t feel limited on your next heating or plumbing project—expand your options and upgrade your equipment today to prevent costly repairs in the future. We offer low payments and multiple financing options.
Your Trusted Heating & Cooling Service Company
As a Bryant Factory Authorized Dealer, we uphold strenuous criteria for technician training and expertise. Our fully licensed team is NATE- and EPA-certified and members of PHCC and ACCA. There is simply no HVAC challenge, from new installations and upgrades to maintenance and repair, that we can’t handle. As one of the top HVAC companies in Seattle, we customize residential and commercial solutions to perfectly suit and minimize turnaround with access to sheet metal fabrication services.
Top Quality Plumbing, Heating & Cooling Maintenance, Repairs & Installation
Day & Nite Plumbing & Heating, Inc., combines a team of fully licensed plumbers and apprentices to address a wide range of plumbing services for your home or business. We are the area’s best commercial and residential HVAC company. Rely on us for tank-style, tankless, and heat pump water heating services.
Let us take care of sewer and water line replacements, trenchless technology, plumbing fixtures, leak repairs, and so much more. From convenient and prompt scheduling during regular business hours to 24/7 emergency assistance, we take pride in an unwavering code of ethics. Do it Right, Call Day & Nite!
Family Owned and Operated Since 1954
Founded in 1954, Day & Nite Plumbing & Heating, Inc. is a family-owned and operated plumbing and heating company based in Lynnwood, WA. Unlike other plumbers and HVAC specialists in Seattle, WA, we prioritize the comfort, safety, and satisfaction of our customers. As leading specialists in the area, we are committed to delivering top-quality products, exceptional value, and outstanding customer service for both residential and commercial needs.
Our technicians are among the best in the industry, adhering to the highest quality standards on every project. If you’re looking to join a team that values excellence, apply today and become part of a company that offers extraordinary benefits and a rewarding career.
Plumbing & Heating Blog
Stay updated on the latest news from Day & Nite.
5 Tips on How to Keep your Lynnwood Home Cooler
Lynnwood summers used to feel fairly predictable: mild mornings, comfortable evenings, and maybe a few truly hot days each year. But lately, summer heat in the Seattle area has become harder to ignore. More frequent heat waves and longer stretches of uncomfortable indoor temperatures have many homeowners looking for better ways to stay cool. The challenge? Many homes ... 5 Tips on How to Keep your Lynnwood Home Cooler
Read More 
Do You Need AC in Lynnwood & the Greater Seattle Area?
For most of our neighbors in the Lynnwood area, air conditioning wasn’t something they grew up with. Seattle’s mild summers made it easy to get by with open windows and a good fan. But summers here are no longer as predictable as they once were. With more frequent heat waves and higher peak temperatures, more homeowners are ... Do You Need AC in Lynnwood & the Greater Seattle Area?
Read More 
Spring HVAC & Plumbing Maintenance Checklist for Lynnwood Homeowners: 5 Must-Do Tasks
In the Lynnwood, WA area, the first signs of spring are coming on fast. The weather is warming up, yards start showing more greenery, and homeowners begin tackling the projects that piled up over the winter. It’s also a good time to check in on the systems that keep your home running day to day. Before summer temperatures arrive and outdoor ... Spring HVAC & Plumbing Maintenance Checklist for Lynnwood Homeowners: 5 Must-Do Tasks
Read More