Window Repair & Replacement in Portland, OR
– Fix Leaks & Rotten Frames

We provide professional window repair and window replacement in Portland, OR, focusing on leaking windows, dry rot, damaged frames, and structural issues. Our approach goes beyond surface fixes — we identify why your window is failing and repair it correctly so the problem doesn’t come back.

Home exterior with new windows and restored stucco siding, showing RainWise exterior repair, moisture protection, and window replacement services in Portland
Home exterior with newly installed gray vinyl siding and stone accents

Window Repair in Portland, OR

Window repair is often the right solution when the structure can be saved and the issue is related to water intrusion, failed seals, or frame damage. We specialize in:

  • Window repair near me for residential homes

  • Leaking window repair

  • Rotten window frame repair

  • Window frame and sill repair

  • Window seal repair

Rain Wise+1 503-805-7925

Why Choose Us for

Window Repair & Replacement in Portland, OR

We fix leaking and rotten windows at the source.
No band-aids, no guesswork — just proper window repair and replacement built for Portland rain.

NARI accredited remodeling company badge with 17 years of experience
Close-up of drywall compound being applied to a damaged interior wall, illustrating RainWise drywall repair and interior moisture restoration services

Our Home Window Repair Process:
Diagnose. Repair. Protect.

1 Step

Remove old units and inspect openings

Rain Wise
2 Step

Install new flashing pans and head flashing

Rain Wise
3 Step

Set windows correctly with sealants

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4 Step

Integrate trim and siding for watertight finish

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See Our Work

How We Solve Tough Leaks

Rain Wise
Mar 23, 2026
1927 Laurelhurst Stucco Home Window Leak Repair, Portland
Home exterior after new window installation with restored stucco siding, demonstrating RainWise moisture protection and exterior repair services in Portland
Oct 05, 2025
Full Window Replacement with Custom Sill Pans in Albany, OR
Close-up of James Hardie lap siding being installed over HardieWrap weather barrier, showing proper fiber cement siding installation and moisture protection
Oct 05, 2025
Hardie Board Siding Installation on Custom Addition
Close-up of chimney waterproofing and flashing installation during roof repair to prevent leaks and moisture damage
Oct 05, 2025
Stucco-to-Roof Connections in Lake Oswego
RainWise team installing new asphalt shingles over Owens Corning underlayment during residential roof replacement in Portland.
Oct 05, 2025
Comprehensive Roof Replacement in Oregon
FAQ

FAQ - Window Installation & Leak Repair

Look for condensation between panes, damp sills, or peeling paint around the frames. These are signs of poor sealing or improper flashing during installation.

Not necessarily. We can start with the most problematic windows - the ones leaking or drafty - and a phased replacement for the rest.

We first eliminate the source of water, then repair any damaged framing or siding before installing new, properly flashed windows. This ensures long-term protection and health safety.

Yes. We provide a full workmanship warranty and honor all manufacturer warranties for the windows we install

Request Window Repair & Leak Inspection
in Portland, OR

Fill out the form below and tell us what’s going on. Whether it’s condensation, leaks, or energy loss — we’ll help you find the right fix.

  • Licensed Oregon Contractor (CCB 228631).
  • Serving the PNW since 2006.
  • NARI Member — industry-recognized standards.

Proudly Serving Residents In:
Lake Oswego, Portland, Tigard, Tualatin, Durham, Canby, Salem, Alameda, Beaverton, Forest Heights, Hillsdale

Rain Wise+1 503-805-7925
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