Serving Whatcom, Skagit & Snohomish Counties Across Northwest Washington

Doing the right thing since 1940
Reliable hometown service when you need it most.

Commercial Plumbing Services in Whatcom, Skagit and Snohomish Counties

Heating, plumbing, and electrical service from the local team Whatcom County has trusted since 1940.

Heating or Plumbing Emergency? We answer around the clock.

24/7

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

Plumbing issues in a commercial building affect more than comfort. They can disrupt operations, frustrate customers, and create compliance headaches if they aren’t handled right. LSM Heating, Plumbing, Electric has served businesses across Whatcom, Skagit, and Snohomish counties for generations, and we bring the same honest, reliable approach to commercial plumbing that we bring to every job.

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What Your Neighbors Are Saying About Us

Heidi C.
★★★★★
After contacting numerous plumbing agencies looking for a certified backflow tester with no luck (most don't do it at all and the only one that I found that did, had no availability for months and were extremely expensive), I asked for referrals on a local FB group. Someone mentioned Lynden Sheet Metal. I contacted them the next day and they had a tech come out within a few days, which was very important because my due date to the city was less than 2 weeks away. The tech showed up right on schedule and promptly completed the testing. The report was sent to the city within a couple of days. Pricing was reasonable and everyone was very pleasant and professional. I will definitely be using them again and would highly recommend them to others.
Michelle D.
★★★★★
Tim came out today, within 1 hour of us calling for our sewer to be snaked, with effective results. He was friendly, fast, honest and the price was amazing. We will continue to use Lynden Sheet Metal for any of our needs in the future and I'd highly recommend them to anyone.
Sherri
★★★★★
This past week, I experienced a plumbing issue that needed quick response. The person answering the phone was so reassuring. It put my mind at ease. Someone was at the property within 20 minutes. The problem was resolved, and I couldn’t be more happy with all three people in which I spoke with, the person answering the phone, the scheduler and the plumber. Thank you very much.

Signs Your Business Needs a Commercial Plumber

Commercial plumbing problems often show up gradually before they turn into a bigger disruption. Here’s what to watch for.

If you’re noticing any of these at your business, it’s worth having a plumber take a look before the issue grows.

Our Commercial Plumbing Services

We provide commercial plumbing for a range of business types, from retail spaces and offices to restaurants, medical facilities, and multi-tenant properties. Our team handles routine maintenance, repairs, and larger installation projects, and we communicate clearly about timelines so you can plan around the work.

We understand that plumbing problems at a business come with added pressure, since downtime affects customers and daily operations. We work efficiently without cutting corners, and we walk you through your options honestly so you can make the right call for your business.

Backflow Testing and Certification

Commercial properties in Washington are legally required to have backflow prevention devices tested every year, which makes this a recurring item on every business owner’s calendar. We test your devices, complete the certification paperwork, and submit it to the appropriate authority so you stay compliant without chasing down deadlines.

If a device fails testing, we explain what repair or replacement is needed, complete the work, and retest. Because testing comes around annually, many of our clients simply keep us on their schedule so it’s never missed.

Grease Traps and Interceptors

Restaurants and commercial kitchens depend on properly maintained grease traps and interceptors, which are required and inspected on a recurring basis. Neglected traps lead to backups, odors, and potential compliance issues that can interrupt service.

We serve restaurants throughout Whatcom, Skagit, and Snohomish counties with grease trap and interceptor cleaning, inspection, repair, and installation. We work around your operating hours whenever possible, and we can help you set a cleaning schedule that fits your kitchen’s volume and local requirements.

Commercial Water Heaters and Boilers

Commercial water heaters and boilers are a different class of equipment than residential units. They operate at greater scale, serve heavier demand, and often involve more complex venting, gas, and electrical requirements. When one fails, the impact can reach every fixture in the building.

We repair, maintain, and install commercial water heaters and boilers, sizing equipment to your building’s actual demand. Whether you need a repair, a replacement, or a maintenance plan to extend equipment life, we’ll give you an honest assessment of what makes sense.

Tenant Improvement and New Construction Plumbing

Not every commercial plumbing job starts with a breakdown. General contractors, property managers, and business owners often need a plumbing partner for tenant improvements, build-outs, and new construction, where timelines, coordination, and code compliance matter as much as the work itself.

We work with your project schedule and coordinate with other trades so plumbing is roughed in and finished at the right stages. From restrooms and kitchens to full build-outs, we handle the plumbing side so your project stays on track and passes inspection.

Hydro Jetting and Sewer Camera Inspection

Commercial drains and sewer lines carry heavy loads, and standard snaking doesn’t always solve recurring problems. Hydro jetting uses high-pressure water to scour grease, sludge, and debris from the pipe walls, restoring flow far more thoroughly than a snake can.

We pair jetting with sewer camera inspection, so we can see the condition of your lines before and after cleaning. That lets us pinpoint root intrusion, cracks, or collapsed sections, and give you a clear recommendation instead of guesswork.

ADA Fixtures, Code Compliance, and Permitting

Accessible restrooms and code-compliant plumbing aren’t optional for most commercial spaces, and mistakes can mean failed inspections, fines, or costly rework. We install and upgrade ADA-compliant fixtures, with attention to proper heights, clearances, and accessible faucets and fixtures.

We stay current on local plumbing codes and handle permitting as part of the job, so you don’t have to navigate the paperwork yourself. Older commercial buildings across the region sometimes have plumbing that no longer meets current standards, and we can assess what needs to change and plan the work accordingly.

Emergency Plumbing Services for Businesses

A plumbing emergency at your business can’t always wait for a scheduled appointment. Burst pipes, major leaks, and backed-up drains need attention right away to limit damage and downtime.

We prioritize emergency calls from local businesses and work to get a technician out quickly. Our goal is to get you back to normal operations with as little disruption as possible.

Why Local Businesses Choose LSM Heating, Plumbing, Electric

We’ve served businesses across Whatcom, Skagit, and Snohomish counties for generations, and that trust is built through reliable, honest work.

We’re not interested in gimmicks or unnecessary upsells. We’d rather give you the facts and get your business back up and running.

Frequently Asked Questions

How often does my business need backflow testing?

Commercial properties in Washington are required to have backflow prevention devices tested annually. We handle the testing and certification paperwork so you stay compliant.

It depends on your kitchen’s volume and local requirements, though many commercial kitchens need service every one to three months.

They operate at larger scale and serve heavier demand, often with more complex venting, gas, and electrical needs, so they require equipment sized specifically for your building.

Yes. We coordinate with general contractors and property managers on build-outs and new construction, working to your project schedule.

Hydro jetting clears buildup from the full pipe wall, and a camera lets us see your line’s condition so we can recommend the right fix.

Yes. We install ADA-compliant fixtures, follow local code requirements, and handle permitting as part of the project.

We prioritize business calls and aim to respond as quickly as possible, especially for urgent issues affecting daily operations.

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