Encore Construction home
Reconstruction in progress · Home repairs and reconstruction

Water Damage Restoration · Kirkland, WA

When Tree Roots Invade a Sewer Line: Basement Water Damage in Kirkland, WA

Incident: Story updated:

Tree roots in a sewer line caused basement water damage. Encore completed cleanup and drying, with contents in storage and reconstruction underway.

Blue air mover in a basement laundry area with an opened ceiling in Kirkland

Documented on siteKirkland restoration project

LocationKirkland, WA
PropertyResidential home
Loss sourceTree roots in a clay sewer line
Current stageReconstruction in progress

The Project Story

From the First Call to Reconstruction

Tree roots can quietly invade underground sewer lines, turning a small opening into a serious plumbing problem. At a homeowner’s property in Kirkland, Washington, roots had intruded into a four-inch clay sewer line. Contaminated water then affected the basement laundry room and under-stairs closet. The water damage was classified as Category 3, requiring careful cleanup and disinfection. We responded by relocating household belongings, removing damaged materials, cleaning affected surfaces, and setting up professional drying equipment.

The First Call

On September 13, 2026, Encore Construction received the initial call about the water damage. That day, technician Andrey Melnik obtained the signed work authorization and installed a dehumidifier and an air scrubber to stabilize the affected areas while the contents work was being arranged. On September 14, Rick Belden contacted the homeowner to schedule a site visit and document the affected belongings.

Initial Inspection

During our initial assessment, we identified water damage in the basement laundry room and the closet beneath the stairs. The loss was classified as Category 3, meaning the water presented a high contamination risk and required appropriate precautions during cleanup and mitigation.

The source was traced to root intrusion in a four-inch clay sewer line. Plumbers came out the same day we recommended them and repaired the pipe, addressing the problem that had allowed contaminated water to enter the home.

Tree roots can enter sewer lines through cracks or pipe joints, restrict wastewater flow, and eventually cause sewage to back up into a home. In this case, the intrusion had left contaminated water and debris around the HVAC units, water heater, drywall seal plates, wall studs, flooring, and concrete surfaces in the basement laundry room.

Water Mitigation and Cleanup

On September 16, Skylar Fish removed affected drywall from the laundry room and under-stairs closet, along with vinyl flooring at the bottom of the stairs and carpeting from the bottom step. He treated the concrete floor, scrubbed the exposed framing, and recorded moisture readings. Skylar installed four air movers, kept the existing dehumidifier and air scrubber in place, and established containment at the bottom of the stairs.

On September 18, Andrey Melnik found that the laundry room base plate still had elevated moisture readings. He moved the dehumidifier closer to the affected area to support drying.

Our quick response helped prevent further damage to the home’s structural wood. We extracted the water, cleaned and disinfected the affected areas, and dried the materials before the base plates or wood studs required additional repairs. By September 19, mitigation was officially complete.

Contents Assessment and Relocation

On September 15, Shasta Mesplie and Jeremiah Maher handled the contents work at the property. They documented the household belongings through photographs and video, then packed, protected, and relocated items within the residence to clear the affected areas for mitigation. These steps also helped reduce the risk of further damage and cross-contamination.

The team grouped the belongings into items designated as non-salvage and items to be kept. The non-salvage group included several rugs, a speaker, a lamp, furniture, a filing cabinet, and other household items. Belongings designated for storage included clothing, paperwork, fabric, a stuffed animal, a wooden cradle, and additional household items.

On September 16, Skylar Fish moved belongings from beneath the stairs to the garage. He noted that items in the under-stairs closet had already been raised on boards and had not been affected by the water damage.

The contents team proceeded with the planned packout on September 21, relocating the homeowner’s belongings to Encore’s facility while reconstruction continued. The items will remain in storage until the home is ready for their return.

Insurance and Payment

While we completed the mitigation work and arranged for the homeowner’s belongings to be stored safely, the remaining restoration depended on coordinating the reconstruction details with Allstate. Hailey Schivo continued to follow up with the insurer, while our general manager worked through the remaining repair supplements and subcontractor bids.

Project Status and Next Steps

The mitigation phase is complete. We removed contaminated and damaged materials, cleaned and disinfected affected surfaces, and dried the structural wood in time to avoid additional repairs to the base plates and studs. The plumbing issue was also addressed after the recommended plumbers repaired the sewer line.

Reconstruction is now underway. The homeowner’s belongings remain at Encore’s facility while the team works through the remaining insurance details and coordinates the repairs. Once reconstruction is complete, the belongings can be returned and the home can move closer to full restoration.

The completed reconstruction will also be backed by Encore’s three-year warranty, providing the homeowner with added peace of mind.

Documented Response

How the Restoration Work Progressed

The stages documented in this project record.

01

Identify the source

Assessment traced the contaminated basement water to root intrusion in a four-inch clay sewer line.

02

Protect contents and remove materials

The team documented and relocated belongings, established containment and removed damaged finishes.

03

Clean, disinfect and dry

Exposed surfaces were cleaned and treated. Follow-up moisture readings guided the drying equipment positions.

04

Continue reconstruction

Mitigation was completed and the project moved into repairs, with belongings stored until their return.

Documented Scope

A Sewer Backup Required Careful Cleanup

The documented Category 3 loss affected the basement laundry room and under-stairs closet. The team separated contents handling from material removal, surface cleaning and drying.

  • Relocate and document household belongings
  • Remove affected drywall, vinyl flooring and carpet
  • Clean and disinfect exposed concrete and framing
  • Track moisture before moving into reconstruction
Moisture meter probing exposed wood framing in the Kirkland project
Technician spraying exposed wall framing in the Kirkland basement
Furniture and stored belongings protected with plastic beneath the Kirkland basement stairs

Project Status

Cleanup Complete. Repairs Are Underway.

The mitigation phase is complete and the plumbing source has been repaired. Reconstruction is underway, while the homeowner’s belongings remain at Encore’s facility until the home is ready.

  • Coordinate remaining repair details with the insurer
  • Continue reconstruction of the affected rooms
  • Return stored belongings when the home is ready
Air mover operating beside exposed basement studs in the Kirkland project

24/7 Emergency Response

If water is still moving, every minute matters.

Shut off the water if it is safe to do so, then call Encore Construction.

Call 425-548-4877