At Sullivan Plumbing, we have been helping homeowners with their plumbing needs since 1966. Based in Bellingham, we serve customers throughout Whatcom County and surrounding areas with residential plumbing services designed to resolve problems and support dependable home plumbing. Our experience includes water heater services, bathroom plumbing, drain repair, hydrojetting, water filter installation, French drain systems, and related plumbing work. Whether the issue is minor or substantial, we are prepared to address it. For urgent situations, our phone is answered by a live person 24 hours a day, every day, including weekends and holidays, allowing us to dispatch emergency service when required.Our licensed plumbers are trained in current technologies and arrive with mobile, fully stocked warehouses containing the latest tools and equipment for diagnosis, repairs, and installations. We emphasize prompt arrival, professional workmanship, and a clean worksite, because resolving the plumbing issue should not leave customers responsible for cleanup. All technician-performed work is backed by a 12-month warranty, and the same part will be repaired without charge if it fails during that period. Our Protection Plan adds practical savings and service benefits, including no service-call charge, a 10% repair discount up to $100, 24 months of extended warranty coverage, priority dispatch, an annual water heater flush, and an annual whole-house plumbing inspection.
Served areas
- Bellingham, WA, Blaine, WA, Everson, WA, Ferndale, WA, Lummi Island, WA, Lynden, WA, Maple Falls, WA, Sumas, WA
Business details
- Year established: 1966
- Employees: 10
- Licensed
- Insured
Highlights and features
- Serving Whatcom County with trusted plumbing since 1966
- 24/7 emergency plumbing with live phone support
- Licensed plumbers using advanced tools and current technologies
- Prompt, clean, professional service for every plumbing job
- 12-month warranty on Sullivan Plumbing technician workmanship
- Protection Plan offers savings, priority service, and maintenance
Payment methods
- Cash, Checks, Debit cards, Credit cards, Financing available
Services
Our water heater replacement service covers tank and tankless units with professional, code-compliant installation. As manufacturer-trained professionals, we guide you through the available options and relevant considerations before work begins. Tank systems can offer quicker comparable replacements and lower installation costs, while tankless systems provide energy savings, endless hot water, and longer life expectancy with proper maintenance. 
Maintaining a sewage pump properly can help prevent unnecessary repairs or replacements, and our service is structured accordingly. We conduct an amperage test, evaluate the float tree for appropriate cycling, and inspect basin sealing. The maintenance procedure continues with high-level alarm testing, cutter blade inspection, and removal of soap or grease from the basin or float tree. 
We understand that plumbing emergencies rarely happen during convenient hours, which is why our emergency plumbers remain available 24/7. From drain problems and toilet issues to water heaters, pipes, gas leaks, faucets, and sinks, our trained team is prepared to help. We respond promptly and treat every urgent plumbing concern seriously. 
We help restore sewer systems affected by blockages, leaks, ruptures, misalignment, corrosion, cracking, and general deterioration. Our team examines the available warning signs and assesses the plumbing system before recommending service. Where conditions allow, trenchless technology minimizes digging, while conventional replacement provides a dependable option for severely damaged or inaccessible piping. 
When a main water line requires attention, we provide comprehensive services covering installation, repair, and replacement. Our team evaluates the underlying issue and considers factors such as damage severity, pipe material, soil conditions, and budget. We can perform traditional excavation or use trenchless pipe bursting and pipe lining methods when those solutions are appropriate. 
Our whole house repiping service is designed for homes with plumbing concerns such as discolored water, declining water pressure, recurring leaks, or outdated piping materials. We inspect the existing system and explain the available options, including PEX and copper. Once the appropriate material is selected, our skilled plumbers install the new system and test it thoroughly. 
When a hidden leak threatens your property, we offer professional detection and repair solutions focused on accurate results. Advanced technology helps us pinpoint leaks behind walls, beneath floors, and within drain or sewer lines. Once identified, our experienced plumbers repair the issue using quality materials and proven techniques, then test the system thoroughly. 
We specialize in safely connecting residential gas appliances and maintaining the lines that support heating, cooking, and water heating. Our services include new installations, modifications, repairs, upgrades, and leak detection. We evaluate existing systems for wear or insufficient capacity, address identified issues, manage necessary permits, and test completed work for proper performance. 
Reviews (30) Chas Finn
Aug 18, 2026
I chose Sullivan because of our years with you. I'd disassembled our washer/dryer and a laundry sink for a new floor installation and felt professionals should do the reinstall of everything so it was done properly and that's what happened. Nick and Johnny came this afternoon and got everything back and running smoothly. I was very impressed at how thorough they were in evaluating what needed to be done and doing it. Thanks to them and your company.
Shelley Weisberg
Jul 01, 2026
Kathy Sheehan
Jun 21, 2026
Sullivan Plumbing has saved us so many times. Last week they installed a sump pump in our crawl space and routed it to the existing storm water drain pipe at our property line. They worked very hard digging a trench and a hole for the sump pump. Very professional, courteous and made sure they didnt leave without asking if we had any questions. They even coordinated with an electrical contractor who was unable to dig around the hard, impacted soil outside to place grounding rods. Such great service and attention to detail Kody noticed a leaky pipe in the crawl space and came back today to fix it. My water karma is restored with Sullivan Plumbing!
Sara Hanes
Jun 19, 2026
Kathi Barbarino
Jun 15, 2026
Mike Ring
Jun 11, 2026
Ron Walsh
May 02, 2026
Lynne Gill
May 01, 2026
Madeleine Kufeldt
Apr 16, 2026
JaneS
Apr 11, 2026
Darlene Saarheim
Feb 08, 2026
Tim Shenkin
Feb 06, 2026
Nancy Simmerman
Jan 28, 2026
Jeri B.
Jan 22, 2026
J. H.
Jan 20, 2026
Alan Zalewa
Dec 19, 2025
Bea Doran
Nov 17, 2025
Alene Johnson
Sep 22, 2025
Fantastic service from Kody Prosser at Sullivan Plumbing! Our 50 year old, main waterline was leaking and was located under our driveway. Kody brainstormed the perfect solution and in a little over a day we had a brand new line installed and the job site is clean and tidy! Very professional. Very fair pricing and we got a senior discount. If we could give 10 stars we would! A+++ for Kody and Sullivan Plumbing. The customer care and service are outstanding. Dont hesitate to call this company.
Karen M.
Sep 11, 2025
Nick W.
Sep 09, 2025
Rachel Dorsey
Jul 25, 2025
D. Adams
Jul 23, 2025
Mark Arrr
Jun 24, 2025
Kody and Johhny came out and installed our water heater and replaced some of the surrounding plumbing. They did a great job, listened to my requests and cleaned up the workspace and old items before they left.
I appreciate Sullivan Plumbing for their quick service, fair pricing and keeping it local!
I appreciate Sullivan Plumbing for their quick service, fair pricing and keeping it local!
Video Lk
May 22, 2025
We had a great experience with Sullivan Plumbing. They repaired a leaking drain from our claw foot tub for less than half what we had been quoted from another company (whose plumber had still not gotten back to us to explain the quote more than a week after their first repair failed).
Nick from Sullivan was courteous and knowledgeable and took care of the problem in just a couple hours. Highly recommended.
Nick from Sullivan was courteous and knowledgeable and took care of the problem in just a couple hours. Highly recommended.
Erika Rogalski
May 06, 2025
Their staff are responsive, friendly, professional, knowledgeable and all their work has been the best. We've called Sullivan Plumbing several times since buying our vintage house. From finding the source of a smell, to fixing the problem, new installations, recommendations for products and solutions, correcting non- plumbers attempts at installs and repairs - we have been completely happy with their work. They respect our home and our cats, and we will definitely continue to call them with all our plumbing needs. We still have a kitchen remodel to go!
J. Berg
Apr 30, 2025
Nick and Chris to save the day! I woke up to a dead hot water tank that was now leaking everywhere. I called at 10:00 am. They were at my house with a new tank by 11:30, and finished and gone by 3:15pm. Clean, curtious, worked super hard, and honestly left zero trace of them even being there. Great guys and I fully recommend this company to help you out in a crisis.
Paula Bk
Apr 19, 2025
John Whitcraft
Mar 11, 2025
Marissa Bailey
Mar 04, 2025
We needed a sewer inspection done on a potential home we wanted to buy, Kody came out and walked us through the entire inspection so we knew exactly what we were getting into with buying and remodeling such an old home. He gave us lots of good advice and offered services for the future! He was so easy to work with and very knowledgeable!
Wesley Finger
Jan 25, 2025
