Residential Water Intrusion Repair in Portland and Vancouver

Water entering through siding, windows, doors, roofing, or exterior transitions can stay hidden long before the damage becomes obvious. Pacific Exteriors NW helps homeowners across the Portland metro area and Southwest Washington find the source, repair damaged exterior assemblies, and rebuild vulnerable areas for long-term protection.

Our best-fit projects involve substantial water intrusion, dry rot, failed flashing, damaged wall assemblies, or coordinated exterior repairs. We focus on exterior building-envelope problems rather than emergency water extraction from burst plumbing or small handyman patches.

Find the Source Before Repairing the Damage

Water damage is usually a symptom. The real problem may be failed window flashing, missing weather-resistant barrier, an improperly integrated roof-to-wall transition, cracked siding, a leaking exterior door, or another break in the home’s protective envelope.

We evaluate the visible damage and the surrounding assembly before recommending a repair scope. Thermal imaging, moisture readings, selective investigation, and decades of Pacific Northwest building-envelope experience help us narrow down where water is entering and how far the damage has spread.

The goal isn’t to cover the stain or replace one damaged board. It’s to correct the pathway that allowed water inside and rebuild the affected area so the repair lasts.

Residential exterior water-intrusion repair in the Pacific Northwest

Signs Your Home May Have Exterior Water Intrusion

  • Water or staining around windows and exterior doors
  • Soft drywall, swollen trim, or peeling interior finishes
  • Musty odors or recurring mold near an exterior wall
  • Cracked, swollen, loose, or deteriorating siding
  • Dry rot in trim, sheathing, framing, or deck connections
  • Water appearing during wind-driven rain
  • Gaps, failed sealant, missing flashing, or exposed transitions
  • Repeated repairs that haven’t stopped the leak

These symptoms don’t always reveal the entry point. Water can travel behind siding or through a wall assembly before appearing indoors.

Residential Water-Damage Problems We Repair

  • Failed window and exterior-door flashing
  • Missing or damaged weather-resistant barriers
  • Siding and wall-assembly failures
  • Roof, wall, deck, and penetration transitions
  • Water-damaged trim, sheathing, and framing
  • Dry rot caused by long-term exterior leaks
  • Construction defects affecting waterproofing details
  • Coordinated repairs involving siding, windows, doors, or roofing

Related services include whole-home siding replacement, window and door replacement, roof replacement, and residential construction-defect repair.

Our Residential Water-Intrusion Repair Process

  1. Start with the symptoms. We review where and when water appears, the home’s exterior materials, and any previous repair attempts.
  2. Evaluate the surrounding envelope. We examine likely entry points, flashing details, siding, openings, transitions, and accessible concealed conditions.
  3. Define the repair scope. We explain what needs to be opened, repaired, replaced, and reintegrated so you can make an informed decision.
  4. Repair and rebuild. We correct the water-entry pathway, remove damaged materials where necessary, and restore the exterior assembly with proper waterproofing details.

Thermal imaging used during a residential water-intrusion investigation

Thermal Imaging and Building-Envelope Experience

Pacific Exteriors NW is experienced in thermal-imaging-supported investigations and exterior building science. Thermal imagery can help identify temperature differences associated with hidden moisture, missing insulation, and air leakage, but it isn’t a stand-alone diagnosis. We combine it with visual evaluation, moisture testing, construction knowledge, and targeted investigation when needed.

That matters because the right repair depends on understanding how the siding, windows, doors, roofing, flashing, and weather barrier work together. Learn more about thermal imaging and hidden exterior problems.

Common Questions About Residential Water-Intrusion Repair

Can you determine where the water is entering?

We investigate the exterior assembly and the conditions around the visible damage to identify likely entry points. Some projects require selective opening or destructive testing to confirm concealed conditions before the final repair scope is established.

Will you repair the damage behind the siding or window?

Yes, when it is part of a larger exterior repair project. The scope may include damaged trim, sheathing, framing, insulation, weather barrier, flashing, siding, windows, or doors.

Do you handle emergency flood cleanup or plumbing leaks?

Our specialty is exterior water intrusion and the resulting building-envelope damage. Emergency extraction, burst-pipe cleanup, and small interior-only repairs are outside our primary focus.

Where do you provide residential water-damage repair?

We serve larger residential projects throughout the Portland metro area and Southwest Washington, including Portland, Vancouver, Beaverton, Gresham, Lake Oswego, Happy Valley, Camas, and surrounding communities.

Talk With Us About Your Home

Planning a substantial residential water-intrusion, dry-rot, or exterior repair project? Call WA: 360-907-1128 or OR: 971-717-3053, or request a project consultation online.

Residential Water-Damage Service Areas: Portland metro and Southwest Washington. View all cities and ZIP codes we serve.

Commercial, multifamily, condominium-community, HOA, consultant-managed, or attorney-directed project? Visit Pacific Exteriors NW.