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(About Us)

Your Local Basement Waterproofing Experts in Sunnyside

4.7★
Average rating
2,150+
Reviews
14,546+
Jobs done
97%
Satisfaction

Looking for trusted basement waterproofing, Sunnyside homeowners call Three Brothers Waterproofing first. Sunnyside is a small city in Yakima County, and its marine / oceanic climate defines the work we do here.

Throughout Outlook to Grandview, our crews cover Sunnyside and the wider southern Washington, tackling the basement waterproofing problems that come with Yakima County's warm, dry summers and heavy winter rainfall. We know the local properties and move fast across all 1 ZIP codes.

Every Sunnyside job comes with a written workmanship guarantee and a flat-rate quote you sign off on before we start - no guesswork. This is why Sunnyside homeowners keep calling Three Brothers Waterproofing.

(Why Choose Us)

Why Sunnyside Residents Trust Us

Locally Owned

Serving our southern Washington neighbors, not a call center.

Guaranteed Work

Written workmanship guarantee on every Sunnyside job.

Transparent Quotes

You approve the flat rate before we start.

Vetted Technicians

Background-checked pros in your Sunnyside home.

(Licensed & Certified)

Licensed, Insured & Sunnyside-Approved

PA License: #PA116134  ·  NJ License: #13VH09196900  ·  DE License: #16-92176-24-000

Need Basement Waterproofing Today?

Call now for fast, licensed basement waterproofing anywhere in Sunnyside and Yakima County.

Call (844) 516-0132