Plumbing, Heating, or Cooling Issues?

Need immediate help unclogging a drain or replacing your HVAC equipment? Contact us today at (360) 219-9468 for quality plumbing, heating, and cooling services in northwest Washington.

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Welcome To CPI Plumbing and Heating

Your Trusted Mount Vernon Plumbing & HVAC Contractors

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Why Work With Us?

Looking for a reliable home services contractor who can provide you with honest advice and recommendations, quality workmanship, and long-term peace of mind? CPI Plumbing & Heating is your local Mount Vernon plumber and HVAC contractor committed to helping you enjoy a hassle-free experience.

We provide high-quality repairs, installations, and maintenance services for residential and commercial customers throughout Mount Vernon and surrounding areas in northwest Washington state.

Same Day Service Available

Personal Attention

Our team is passionate about customer service and helping our clients receive the quality solutions they deserve. We will take the time to listen to your plumbing and HVAC concerns and present you with solutions that fit your goals and budget.

Transparent Service

You will always know what to expect before work begins on your plumbing or HVAC system. We will go over the job details and pricing upfront, so you can make the best decision for your home or business and enjoy greater peace of mind.

Experienced Professionals

We are always looking for ways to better serve you. All of our team members continue to stay up to date on industry developments, including plumbing and building codes, to ensure that you receive nothing less than exceptional results.

Our Happy Customers

You Can Count on Our Service Professionals

100 Years of Combined Experience

We Care About Our Community

Full Service Plumbing, HVAC

Award Winning Service Technicians

Experience The CPI Plumbing and Heating Difference!

Leave your plumbing and HVAC concerns to our experienced team. Contact us today at (360) 219-9468 to request an estimate in Mount Vernon, WA or the surrounding area.

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Serving the Northwest Washington Area

If you need a plumbing, heating, or air conditioning repair in Skagit County, the experienced and knowledgeable team at CPI Plumbing & Heating can help! However, you may have questions about your situation, and you might be searching for answers before you make the call. Here are a few of the most commonly-asked questions we receive about our business and the answers we can provide you.
Our founder, Steve Olsen, sold the company to three of his long-time employees, one of which was his son. This same leadership group has led the company since 1990.
We offer our services at regular rates: Monday to Friday from 8 a.m. to 6 p.m. However, we also offer after-hours emergency services at our emergency rates: Monday to Friday from 6p.m. to 8 a.m. and Saturday and Sunday all day, because sometimes problems don’t wait until business hours to spring up. Our business office is open from Monday through Friday from 8 a.m. to 5 p.m.
The price of a service call varies on a per-job basis, so you’ll need to call our office to get a specific answer. We do not charge on a per-hour basis, we charge per-job, so you won’t have to worry about surprise overtime fees or other costs that other companies might throw at you.
Yes. When our technician arrives on-site and conducts an inspection of the issue, they’ll give you a written price quote.
We offer a complete range of plumbing, heating, and air conditioning repairs, replacement, installation, and maintenance services for residential and commercial applications. We offer drain cleaning, leak detection and repair, water heater repairs and replacements, backflow certification, re-piping services, video pipe inspections, air conditioner and heater inspections and diagnoses, system replacement, heat pump repair, blower motor repair, and much more.
We’re so confident you’ll be completely satisfied with the services you receive that we back up all our repair work with a 90-day warranty and all our replacement and installation work with a full one-year warranty! If anything goes wrong with our solution during that time, we’ll come fix the issue again at no cost to you.
No, you don’t. As long as we can access the systems we need, we can perform all of the necessary work without you needing to be present! We are both licensed and fully-insured with a $1 million per claim liability policy, and we have an A rating with the Better Business Bureau in order to give you the confidence of knowing the job will be done right if you can’t be home while we’re there.

The Best Plumbing Services in Mount Vernon

Clogs, backed-up drains, and leaking pipes can happen when you least expect it—and our team is here to help you get your plumbing problems under control using safe and proven methods.

No matter the size of your plumbing problem or what’s causing it, we are prepared to provide you with the quality service you need.

Contact us for help with the following:

HVAC Trouble? Contact Our Mount Vernon AC and Heating Experts Today

Your HVAC system is an essential part of your home and business. An inefficient furnace or a broken air conditioner can result in high utility bills and poor indoor air quality.

If you are struggling with recurring HVAC problems, or you’re looking to install new heating or cooling equipment, call our experts for immediate service. We will assess your indoor comfort needs and have your HVAC system running efficiently in no time.

Let us help you with the following:

From Bellingham to Everett, and everywhere in between, you can expect to receive fast turnarounds and quality service no matter where you are in northwest Washington.

Whether you need to fix a leaking pipe, replace your furnace, or install new air conditioning equipment, you can count on our experts to arrive on time and have your plumbing or HVAC problem resolved as quickly as possible.

The Right Technicians, The Right Company

CPI Plumbing & Heating proudly serves the communities of Skagit, Island, Whatcom, and North Snohomish Counties from our office in Mount Vernon.

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    Real Time Service Area

    Local Reviews

    CPI Plumbing & Heating Rated 4.8 out of 5 stars based on 477 customer reviews

    Map of Oak Harbor, WA


    Review of CPI Plumbing & Heating

    Map of Oak Harbor, WA

    Quality at Hopefully Good Value

    Review of CPI Plumbing & Heating

    Timely response for the plumbing crisis so often plaguing our lives.

    Map of Anacortes, WA

    Davis was amazing.

    Review of CPI Plumbing & Heating

    He answered all my questions so I understood what he was saying He checked everything (no service man has ever done that before). I was very impressed. I want him to always be the one who comes to y house. A truly informative and polite man. Very impressed.

    Map of Burlington, WA

    Nice crew

    Review of CPI Plumbing & Heating

    Josh and his sidekick Victor were a pleasure to work with. Victor was learning some new skills and Josh was a good teacher. They were very thorough and if we need some plumbing work in the future would definitely cal CPI.

    Map of Oak Harbor, WA


    Review of CPI Plumbing & Heating

    Jon M.

    Jon M.

    Confirmed with customer that water heater was leaking at top of tank. Found that customer had quest piping tied onto copper flexes for water heater then tied into pvc piping onto water heater. Water heater was 14 years old. Turned off power, drained water heater and removed old tank. Replaced water lines for water heater just into crawlspace. Had to install drip pan and route drain outside. Also had to reroute t&p drain line as it was just stubbed into crawlspace. Installed earthquake straps and new 50 gallon water heater. Had to cut out access panel to reach top of tank inside closet. Turned water and power back on verifying no leaks present. Thank you for choosing CPI Plumbing and Heating.

    Near Shiloh Ln, Sedro-Woolley, WA 98284
    Brenden T.

    Brenden T.

    Arrived onsite per customer complaint of their water heater pilot not staying lit. Upon arrival I found the tank to be cold and have no pilot. Offered Debbie a few different options. Debbie elected to go with a new Navien Tankless Water Heater. After speaking with management we let Debbie know that we would waive the diagnostic charge and attempt to get her back up and running until we could get out to replace the 17 year old tank. Began by going through my diagnostic, I found that the thermocouple on the water heater was dead. Installed a new thermocouple. Attempted to relight the water heater and was successful. Let Debbie know that we got her back up and running temporarily. CPI will be working with Debbie to get us back out to install the new tankless water heater. Thank you for choosing CPI Plumbing and Heating Inc. June 11th 2021 Arrived onsite to install the new Navien Tankless Water Heater. Disconnected the required connections. While flushing the old tank we found it to ta

    Near Iledora Ln, Camano, WA 98282
    Coady P.

    Coady P.

    Inspected water heater and gave options for replacement. Will return on 6/11/21 to install new water heater. Turned water off to system. Drained system. Shut breaker off to tank. Drained tank. Removed electrical. Removed tank. Installed earthquake straps. Installed water heater foam pad. Installed water heater pan. Installed water heater. Secured earthquake straps. Installed water heater ball valve shut off. Installed water heater flexes. Filled tank and turned breaker on to unit. Ran T&P drain to outside of home. Ran water heater pan drain to outside of home. Took temperature at kitchen sink. Temperature came back at Approximately 120. Insulated supply lines. Thank you for choosing CPI plumbing and heating!

    Near WA-9, Mount Vernon, WA 98274
    Jon M.

    Jon M.

    Customer stated while brushing her teeth flood stop sensor started beeping and hot water stopped working. Water heater flood stop was right next to sink everything was dry upon arrival. Water heater itself is not leaking. Put flood stop in open position and hot water is now going through faucets. Moved flood stop sensor to opposite side of water heater away from bathroom sink. Thank you for choosing CPI Plumbing and Heating.

    Near S Superior Ave, Concrete, WA 98237
    Josh E.

    Josh E.

    Customer called about a leaking drain. I had been out here previously and located the leak but it was behind a microwave and cabinets. After they had been removed from the wall, customer called us. Arrived on site and offered pricing to repair, customer accepted. Began cutting drywall to make room for repairs. Customer stated that they have to have the drywall in the kitchen replaced on Monday. Cut a 5” section of the damaged 2” abs shower drain. Installed 2” pvc and secured it to the abs with two mission bands. Ran the tub to check for leaks, none detected. Covered hole in drywall and cleaned work area. Thank you for choosing CPI!

    Near SW Sunnyside Ave, Oak Harbor, WA 98277

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    This special runs until 6/31/2021