Doing the right thing since 1940

Reliable hometown service when you need it most.

Furnace Repair in Marysville, WA

Heating, plumbing, and electrical service for Snohomish County from a local team trusted since 1940.

Heating or Plumbing Emergency? We answer around the clock.

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Emergency Heating & Plumbing Support

Trusted

For Generations

Licensed

& Insured

Financing

Available

Parts & labor

Warranties

24/7

Emergency Heating & Plumbing Support

Trusted

For Generations

Licensed

& Insured

Financing

Available

Parts & labor

Warranties

Marysville’s rapid growth means a wide mix of furnaces across the city, from brand new builder-grade systems to older units that have quietly kept a home warm for years. LSM Heating, Plumbing, Electric has served Snohomish County families for generations, and we bring the same honest approach to every furnace we touch.

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Why Homeowners in Marysville, WA Trust Us

Our furnace went out on Christmas Eve. Called several places on the morning after Christmas and all went to voicemail with no call back. Someone told me about Lynden Sheet Metal and said they were wonderful. LSM answered the phone and squeezed me in on short notice so that we would have heat over the weekend. I can't say enough good about this company. The lady who took my call was friendly and helpful. The technician was the same and is highly skilled at his job. They have us back up and running for significantly cheaper than I expected. Lynden Sheet Metal is our go to provider moving forward!

Our furnace quit working and Lynden Sheet Metal quickly scheduled service. Their employee was very knowledgeable and professional, taking time to explain the problem and our options. He serviced our furnace and got it working in short time. I would definitely recommend them. The cost was also very reasonable.

I called them when my furnace stopped heating. They showed up on time (actually a little early, which was nice). The technician went right to work, and got the job done quickly. The price was affordable too. I would highly recommend, and I will definitely use Lynden Sheet Metal again if the need arises.

Signs Your Furnace Needs Repair

A furnace rarely stops working without giving some warning first. Watch for these signs in your Marysville home.

Cold air from vents
Strange banging or rattling
Frequent short cycling
Yellow or flickering pilot light
Rising heating bills
Uneven heat throughout the house

Catching one of these early usually means a smaller, more manageable repair.

What's Really Behind Your Furnace Problems

Many of Marysville’s newer subdivisions were built with standard builder-grade furnaces meant to meet a baseline rather than handle years of steady winter use. Those units can start showing wear sooner than homeowners expect.

Older homes closer to downtown often run systems that have been updated piece by piece over the years, which can create mismatches between components. The valley’s low-lying humidity adds another layer of strain, since a furnace has to work harder to keep a damp home feeling warm and dry.

Furnace Repair Done Right

Whether your furnace is a newer builder-grade system or an older unit that’s been serviced piecemeal over the years, we diagnose the actual issue before recommending any repair. We know the difference between what a system needs today and what it will likely need down the road, and we’re upfront about both.

Our technicians work efficiently so your home isn’t left without heat longer than necessary, especially during the coldest stretches of the year.

Inside a Typical Service Visit

A homeowner named Diane in the Cedarcrest area called after noticing her relatively new furnace was struggling to keep the house warm on a cold morning. Our technician found a clogged filter that had never been changed since the home was built, restricting airflow throughout the system.

A simple filter replacement solved the issue completely. Diane said she hadn’t realized filters needed regular changing, even on a newer system.

Why Homeowners Choose LSM for Furnace Repair

Marysville has plenty of contractors to choose from, so here’s what sets us apart.

Family-owned and operated
Straight answers, no pressure
Fair, honest pricing
Doing the right thing since 1940
Deep roots in the community
Technicians who respect your home

We’d rather give you a straight answer than oversell you a repair you don’t need.

Frequently Asked Questions

Why does my newer furnace already need repair?

Even newer systems can develop issues, especially without regular filter changes and checkups.

How often should I change my furnace filter?

Most filters should be checked every one to three months, more often during heavy use.

Does my home's location in Marysville affect my furnace's workload?

Homes in lower, more humid areas near the valley often ask more of their heating systems.

Can an older, updated system cause more furnace problems?

Mismatched components from past updates can sometimes create issues a technician can help resolve.

Do you work on both new and older furnaces in Marysville?

Yes, we service systems in both newer subdivisions and established neighborhoods throughout the city.