24/7 emergency line open Snohomish County · Licensed · Bonded · Insured (360) 488-8553 →
Granite Falls / Snohomish County

Plumbing done right
the first time.

Owner-operated and locally trusted. From burst pipes at midnight to a brand-new tankless install, Big Four shows up on time, charges what we quote, and stands behind every joint.

Call (360) 488-8553 Request a free quote
  • License WA #BERESBE753ND
  • Insured $1M liability
  • Response 24 / 7
1,200+ Snohomish homes served
4.9★ Average customer rating
24/7 Emergency availability
100% Workmanship guarantee
Cascade foothills above Snohomish County, Washington
48° 4' N · 121° 58' W

Built for the
Pacific Northwest.

Hard water, freeze-thaw winters, septic country, century-old farmhouses and brand-new builds in the foothills. We've worked it all — and we're still here, headquartered five miles from the Mountain Loop Highway.

Headquarters Granite Falls, WA
Coverage All of Snohomish County
On the road Every day, rain or shine
We install & service
Rinnai Navien Bradford White Rheem A. O. Smith Moen Kohler
Services / 01

Whatever your pipes are doing,
we've fixed it before.

Residential and light commercial plumbing across Snohomish County. One licensed crew. No subcontracting your home out to strangers.

A Big Four Plumbing technician next to a freshly installed Navien tankless water heater
Navien NPE-A2 install · Marysville, WA
Most requested 02 / Featured service

Water heaters
& tankless conversions.

Repair, replacement, and full tankless conversions from Rinnai, Navien, Bradford White, Rheem, and A.O. Smith — sized, vented, and permitted to spec.

  • 01Same-day diagnostics on any unit
  • 02Tankless conversion specialists
  • 0310-year tank warranties available
Learn more about water heaters
01

Emergency repairs

Burst pipe, no hot water, water where it shouldn't be — call any hour, day or night. We dispatch fast.

  • Burst & frozen pipes
  • Leak detection
  • Shutoff failures
Learn more
03

Drain & sewer

Stubborn clogs to full sewer line repair. Camera inspection, hydro jetting, trenchless options.

  • Camera scoping
  • Hydro jetting
  • Sewer line repair & replacement
Learn more
04

Gas lines & piping

New runs, leak repair, appliance hookups, and pressure testing. Fully permitted, fully inspected.

  • Range, dryer, fireplace, BBQ
  • Leak isolation
  • Repipes & PEX conversions
Learn more
05

Septic systems

Inspections, repairs, and component replacement for rural Snohomish properties.

  • Tank & lateral repair
  • Pre-purchase inspections
  • Pump replacement
Learn more
06

Remodels & new builds

Kitchens, bathrooms, ADUs, and ground-up homes. Clean rough-ins, picky finish work, on-schedule.

  • Full bath & kitchen rough-in
  • Fixture install
  • Builder partnerships welcome
Learn more
07

Backflow & fixtures

Annual backflow testing, fixture replacement, and pressure regulator work — small jobs done right.

  • Certified backflow testing
  • Faucet, toilet & disposal swaps
  • PRV & expansion tanks
Learn more
Why Big Four / 02

Four promises.
We don't break them.

It's right there in the name. Here's what every Big Four customer gets — every job, every time.

01

Integrity first

If you don't need it, we'll tell you. We'd rather lose the upsell than your trust.

02

Fair, transparent pricing

Up-front quotes before we lift a wrench. No surprise add-ons, no "while we're in here."

03

Rock-solid workmanship

Every joint pressure-tested. Every install backed by our written workmanship guarantee.

04

Customer satisfaction

We're not done until you're happy — and your floors are cleaner than when we walked in.

Meet your plumber / 03

A Pacific Northwest plumber
who answers the phone.

Big Four Plumbing was founded in Granite Falls by Brad Beres on a simple idea: customers deserve a plumber who shows up when promised, explains the problem in plain English, and charges what was quoted. That's it. No call centers, no high-pressure sales scripts, no rotating cast of unfamiliar faces.

When you call Big Four, you're getting a licensed, insured, owner-operated outfit that lives in the same county you do. We treat your home like our own — boots off, drop cloths down, and the workspace cleaner than we found it.

WA Lic# BERESBE753ND
Insured $1M liability
Bonded Contractor surety
Local Granite Falls, WA
Call Brad: (360) 488-8553 Or request a quote →
How it works / 04

Booking us is the easy part.

Three steps from "ugh, what now" to "wow, that's fixed."

  1. 01

    Call or request a quote

    Tell us what's happening. We'll triage on the phone and book you fast — same-day for most jobs, immediately for emergencies.

  2. 02

    Up-front, written quote

    We diagnose on-site, walk you through your options, and quote the work in writing before any tools come out.

  3. 03

    Fix it. Test it. Guarantee it.

    We do the work to code, pressure-test it, clean up, and back it with our written workmanship guarantee.

Service area / 05

Proudly serving
Snohomish County.

Headquartered in Granite Falls and dispatching across the county every day. If you don't see your town, call — chances are we're there too.

  • · Granite Falls
  • · Lake Stevens
  • · Snohomish
  • · Marysville
  • · Arlington
  • · Everett
  • · Mill Creek
  • · Monroe
  • · Mukilteo
  • · Lynnwood
  • · Bothell
  • · Stanwood
Check availability — call now
Reviews / 06

Neighbors who've been there.

What real Snohomish County customers say after a Big Four visit.

★★★★★
"Water heater died on a Sunday night. Brad picked up at 9pm, was at the house by 10am Monday with a new tank, gone by 2. Quote on the phone matched the invoice to the dollar."
Megan T.Lake Stevens · Water heater replacement
★★★★★
"Got three quotes for a tankless conversion. Big Four wasn't the cheapest but they actually walked me through why — venting, gas line, the whole thing. No pressure. Hired them and zero regrets."
David R.Marysville · Tankless install
★★★★★
"Sewer backup, ugly situation. They scoped it, found the root intrusion, gave me a trenchless option I didn't know existed. Saved my driveway and my budget. Cleaned up like they were never here."
Priya S.Snohomish · Sewer repair
★★★★★
"We've used Big Four for two bathroom remodels and a gas line for the new range. They show up when they say, the work is clean, and the inspector hasn't flagged a thing."
Mark & Jen H.Granite Falls · Remodel plumbing
FAQ / 07

Quick answers.

Don't see yours? Call us at (360) 488-8553 — we'll talk it through.

Do you really answer 24/7?

Yes. Plumbing emergencies don't wait for business hours, and neither do we. After-hours calls go straight to an on-call tech, not a voicemail.

How does pricing work?

We diagnose on-site (small trip fee for non-emergency visits, waived if you book the work), then give you a written, itemized quote before we start. The number you approve is the number you pay.

Are you licensed and insured?

Yes — Washington plumbing license BERESBE753ND, $1,000,000 general liability coverage, and a $6,000 contractor's bond. We pull permits when the job calls for one.

What areas do you serve?

All of Snohomish County — Granite Falls, Lake Stevens, Snohomish, Marysville, Arlington, Everett, Mill Creek, Monroe, Mukilteo, Lynnwood, Bothell, Stanwood and surrounding areas.

Do you guarantee your work?

Every job carries our written workmanship guarantee. Manufacturer warranties (often 6–10 years on tanks, longer on tankless) come on top of that.

Can you handle remodels and new construction?

Absolutely. We work with homeowners on bathroom and kitchen remodels and partner with local builders on new homes and ADUs. Get in touch for a project consult.

Free quote / 08

Tell us what's going on.

Send the form or call (360) 488-8553. Most quotes returned the same day. Emergency? Call — don't email.

  • Phone (360) 488-8553
  • Address 23100 135th St NE, Granite Falls, WA 98252
  • Hours Mon–Sat 7am–7pm · 24/7 emergency
Request a quote Avg. response · same day

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