Quality plumbing for builders and homeowners in Kelso homeowners and businesses. New construction, remodels, additions, and all residential & commercial plumbing — backed by a 100% satisfaction guarantee.
From quick repairs to full remodels — we've got Kelso covered.
Ground-up plumbing for custom homes, spec builds, and multi-family — from underground rough-in to final trim-out.
Learn More →Full-service commercial plumbing for offices, retail, restaurants, and multi-family. Licensed for commercial work in OR and WA.
Learn More →Complete plumbing for full remodels — rough-in, fixture installs, and finish work coordinated with your GC or directly with homeowners.
Learn More →Room additions, ADUs, garage conversions, and in-law suites — all plumbing phases from permit to final inspection.
Learn More →Basement bathrooms, wet bars, laundry rooms, and utility sinks — rough-in and finish work for basement build-outs.
Learn More →Sink installs, dishwashers, garbage disposals, pot fillers, ice maker lines, and full kitchen rough-ins for remodels and new builds.
Learn More →Tank and tankless water heater installation for new construction and replacements. All brands, all sizes, permitted and inspected.
Learn More →Replace old galvanized, polybutylene, or corroded pipes throughout the home with modern copper or PEX.
Learn More →New sewer lateral installations for new builds and additions, plus repairs and replacements on existing lines.
Learn More →Precision detection and repair of under-slab leaks — protecting foundations on new and existing construction.
Learn More →Sump pump installation and replacement to protect basements and crawlspaces from water intrusion.
Learn More →Electronic leak detection and pipe repair for hidden leaks in walls, slabs, and underground lines.
Learn More →Answers to common questions from Kelso homeowners.
Yes! PNW Plumbing LLC proudly serves Kelso, WA and all of Cowlitz County. We offer emergency plumbing, water heater replacement, drain service, sewer line repair, whole home repiping, and more. Call 503-957-8703 any time.
Absolutely. We provide 24/7 emergency plumbing in Kelso, WA. Whether it's 2am or Christmas morning — call 503-957-8703 and we'll be there.
Call us at 503-957-8703 or fill out our contact form. We'll give you an upfront price before any work begins — no surprises, no obligation.
We offer a full range of plumbing services in Kelso, WA: emergency repairs, water heater replacement, tankless water heater installation, drain service, sewer line repair and replacement, whole home repiping, slab leak repair, bathroom and kitchen remodel plumbing, sump pump installation, and new construction.