
Certified master plumber · 40+ years in Snohomish
Forty years, one plumber. He answers his own phone.
Allen Plumbing is Shawn Allen — a master plumber who has worked in Snohomish for over forty years. When you call, you reach Shawn, not a dispatcher. No large fleet to maintain keeps the cost down, and the same person who picks up is the one who shows up.
Owner-operated · Same-day service available
- 40+ yearsas a plumber in Snohomish, Washington
- Master plumbercertified, and the person who does the work himself
- Shawn answersyou reach the owner directly — no dispatcher, no call centre
- 4.7★ · 55 reviewsfrom customers on Birdeye
What Shawn does
Residential plumbing, done by the person you called
Forty years of it, across the house. Call and describe the problem — Shawn will tell you straight whether it is a quick fix or a real job.
Drains & sewer lines
Clearing clogged or slow drains, and repairing or replacing sewer lines when a drain problem turns out to run deeper.
- Drain cleaning throughout the home
- Sewer line repair and replacement
Video camera inspection
An in-pipe camera run to find out what is actually wrong in a sewer or drain line before anyone starts digging or guessing.
- In-pipe video diagnosis
- Sewer and drain line inspection
Water lines & water heaters
Repair and installation of residential water lines, and diagnosis and repair of water heaters that have stopped doing their job.
- Water line repair and installation
- Water heater diagnosis and repair
Kitchen & bath fixtures
Installing and repairing the fixtures you use every day — faucets, sinks, tubs and toilets — in the kitchen and the bathroom.
- Kitchen fixture install and repair
- Bathroom fixture install and repair
Repairs & sump pumps
General plumbing repairs across the home, plus installation and servicing of sump pumps. Same-day service when the schedule allows.
- General plumbing repair
- Sump pump installation and service
How it works
You call Shawn. Shawn shows up.
No intake form, no dispatcher, no phone tree. The plumber you speak to is the plumber who does the work.
Call Shawn directly
Dial the number and you reach Shawn himself — the owner and the plumber — not an answering service. Tell him what is going on.
He comes out, often the same day
Shawn schedules you in and comes out in person, frequently the same day, to look at the job rather than quote it blind.
He fixes it — or walks you through it
Sometimes it is a real repair. Sometimes it is a five-minute fix he will talk you through over the phone rather than charge you for a visit.
You keep his number
Most of Shawn’s work comes from referrals and repeat clients, some going back ten years or more. Once you have a plumber you trust, you call the same one.
The plumber
Forty years in Snohomish, and I still answer my own phone.
I kept it small on purpose.
- Certified master plumber
- 40+ years in the trade
- Owner-operated — Shawn does the work himself
- Based in Snohomish, Washington
— Shawn Allen
I am Shawn Allen, and Allen Plumbing is me. I have been a plumber for more than forty years, and a certified master plumber working here in Snohomish for most of them. When you call Allen Plumbing, you are not getting a brand or a call centre — you are getting the person who will be standing in your house, with his own tools, doing the work.
I kept it small on purpose. There is no large fleet to maintain and no office full of people to pay for, which keeps what I charge you lower than the multi-truck outfits. It also means the plumber who picks up the phone is the plumber who shows up at your door — one person, start to finish, who you can look in the eye and hold to his word.
Most of what I do comes from referrals and from people who have called me for ten years or more. If your problem is something you can handle yourself, I will tell you that and talk you through it rather than sell you a visit you did not need. That is how you end up with a plumber for life instead of a plumber for one job.
Recent work
A few jobs around Snohomish
Shawn’s own photographs of finished residential work. Ask on the call and he can tell you about more of whatever yours needs.

Kitchen faucet installed 
Bathtub install 
Toilet repair
Reviews on Birdeye & referrals
What Shawn’s customers say
Shawn came over same day and fixed it within 30 mins or so and it’s been working great ever since. Shawn is very knowledgeable and very personable, you can ask him anything about plumbing and he’ll have an answer for ya.
Homeowner, Snohomish I called Allen Plumbing when my garbage disposal jammed up badly—there was a metal bottle opener stuck in the teeth. Instead of just saying it wasn’t worth a service call, he took the time to walk me through the steps to fix it myself over the phone.
Homeowner, Snohomish Once again Shawn saved the day! Been using him for over 10 years, good price excellent service! Not call anyone else!
Homeowner, Snohomish Sean did a great job for me at my mother’s home water coming through ceiling he told me what to do to shut the water off came out and made repair same day
Homeowner, Snohomish
Snohomish, Washington.
One plumber, forty years, one number to call. Dial it and Shawn answers — tell him what is wrong and he will tell you straight what it takes to fix it.
Call (425) 502-0106Get in touch
Call Shawn
Calls reach Shawn directly, not an answering service — most days he can come out the same day. If he is on a job and misses you, leave a message or send an email and he will get back to you.
Where to find us
Snohomish, WA
2020 Bickford Ave PMB 39Snohomish, WA 98290
Opening hours
- Monday – Friday
- 8:00 AM – 6:00 PM
- Saturday
- By appointment only
- Sunday
- Closed