Plumbing, Heating, or Cooling Issues?
DON'T CRY, CALL CPI!

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 435 customer reviews

    Map of Anacortes, WA

    Good job




    Review of CPI Plumbing & Heating


    Map of Anacortes, WA

    great as always




    Review of CPI Plumbing & Heating


    Map of Oak Harbor, WA

    High quality




    Review of CPI Plumbing & Heating

    Friendly, assuring, Quality repairs and training for assistant.


    Map of Bow, WA

    Excellent service as always




    Review of CPI Plumbing & Heating


    Map of Camano, WA

    Great follow up on parts and installation.




    Review of CPI Plumbing & Heating

    Overall excellent service and follow through.


    Jon M.

    Jon M.

    Confirmed with customer that mainline was backed up toilet and shower would not drain. Used camera through toilet drain finding mainline full of water 105 feet out. Located this area finding inlet baffle lid and septic tank lids. Opened septic tank clearing out blockage at inlet baffle. drain field is clogged found no filter in outlet baffle. Customer will need to contact a septic company to perform work on drain field. Adam was unable to make payment as he was driving and couldn’t provide card number. Office will call in the morning to collect payment. Thank you for choosing CPI Plumbing and Heating.

    Near S Camano Dr, Camano, WA 98282
    Jon M.

    Jon M.

    Confirmed with customer that when running Washing machine water backed up into both bathtubs. Opened clean out outside while water was backed up inside verifying blockage is within the home. Used cable clearing out soft blockage. Used camera in line finding belly just before exiting foundation. Went in crawlspace finding 30 feet of 3 inch abs has fallen off hangers. Will provide estimate to replace 30 feet of mainline in crawlspace. Line is flowing properly at this time. Thank you for choosing CPI Plumbing and Heating.

    Near SW 3rd Ave, Oak Harbor, WA 98277
    Jon M.

    Jon M.

    Confirmed with customer that mainline was backed up and sewage is backing out of clean out. Used cable through clean out multiple times retrieving cleaning wipes and feminine hygiene products. Ran water for 10 minutes verifying proper drainage. Used camera in drain finding root intrusion at 42 feet. Unable to determine if there are roots before 40 feet due to water being used in other units. Will schedule to return after no use of water and camera mainline to verify what section of piping is damaged. Will provided estimate to repair damaged mainline at this time. Thank you for choosing CPI Plumbing and Heating.

    Near N Oak Harbor St, Oak Harbor, WA 98277
    Coady P.

    Coady P.

    Customer had clogged mainline to septic tank. Pulled lid and found normal level and clear inlet baffle. Used video inspection equipment to find clog. Line dead ends with a capped tee at 3ft with sewer main from home coming in at left. Could not get drain cleaning equipment to make turn. Appears to be cast iron and maybe some clay sewer pipe. Used kitchen cleanout to auger through and was able to dislodge soft plug. Tested all drains in home with no backups. Put lid back on septic. Dosed drains with bio one. Customer has extra and will apply until sewer is replaced from foundation to septic. Put down utility locates mark for future excavation of sewer.

    Near N Maple St, Camano, WA 98282
    Coady P.

    Coady P.

    Customer reported no water pressure at half the RV sites. Inspected well house and had water pressure at pressure tank. Pressure tank is 80 gallon. Turned on gate valve in meter box outside of well house that controls flow to sites. Water was seen running from standpipe valves at half the sites. Closed off individual site water valves and was able to get pressure at remaining sites. Individually tested each site and had good pressure at all. Well pump pressurized tank and turned off. Pressure gauge was at 100 psi with a 60/40 switch. Pressure gauge is probably damaged. Pressure tank is undersized for application. The well cannot keep up with everything open at once. Customer is going to be moving well house in near future.

    Near Friday Creek Rd, Burlington, WA 98233

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