Pipe burst right now? Skip the reading — see 24/7 emergency plumbers near you →
King County · Updated August 2026

The 9 Best Plumbers in Maple Valley, WA

Every plumber below is ranked by real Google review data — score weighted by volume — with no paid placements. See exactly how the ranking works →

#1 · MAPLE VALLEY

DELTA ROOTER LLC

5.0 rating · 99 Google reviews · Plumber
22038 SE 271st St, Maple Valley, WA 98038
#2 · MAPLE VALLEY

Pipelining Northwest

5.0 rating · 78 Google reviews · Plumber
20825 SE 232nd St, Maple Valley, WA 98038
#3 · MAPLE VALLEY

Lilly's Septic Service

4.9 rating · 397 Google reviews · Septic system service
26207 Maple Valley Black Diamond Rd SE Ste D1, Maple Valley, WA 98038
#4 · MAPLE VALLEY

Prime Maple Valley Plumbing Masters

5.0 rating · 14 Google reviews · Plumber
26575 Maple Valley Black Diamond Rd SE, Maple Valley, WA 98038
#5 · MAPLE VALLEY

Maple Valley Plumbing

4.8 rating · 214 Google reviews · Plumber
23312 Maple Vly Hwy, Maple Valley, WA 98038
#6 · MAPLE VALLEY

Main Line Plumbing and Sewer

5.0 rating · 7 Google reviews · Plumber
22610 SE 240th St #11, Maple Valley, WA 98038
#7 · MAPLE VALLEY

Cahill's Plumbing & Heating

4.6 rating · 131 Google reviews · Plumber
23313 208th Ave SE, Maple Valley, WA 98038
#8 · MAPLE VALLEY

All Service Plumbing & Contrac

5.0 rating · 2 Google reviews · Plumber
21417 SE 278th Way, Maple Valley, WA 98038
#9 · MAPLE VALLEY

Maple Valley Plumbers

3.5 rating · 2 Google reviews · Plumber
26324 SE 237th St, Maple Valley, WA 98038

Rating data from public Google Business listings, 2026-08-07. Rankings computed by review score weighted by volume — the formula is public. Run one of these companies? Claim your listing (free, never affects rank).

Maple Valley Questions

Hiring a plumber in Maple Valley

How are these plumbers ranked?

Rankings combine each company's Google review score and review volume — a 4.9 across hundreds of reviews outranks a 5.0 across four. No company can pay to appear or to move up; the same formula applies in every city we cover.

Should I verify a plumber's license?

Yes — always. Washington requires contractors to be licensed, bonded, and insured. Ask for the company's L&I contractor number and check it at lni.wa.gov before work starts. It takes two minutes and filters out the horror stories.

Does Wetside Plumbing take a cut or sell my info?

No. Call any company above and you're calling them directly — their real number. We never collect or sell your contact details, and no contractor pays us for placement.

Nearby

Plumbers in nearby cities

Other trades in Maple Valley