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Seattle repair research

Retaining wall repair

Understand what a repair scope needs to resolve, jump to neighborhood-specific evidence, and compare companies through selected Seattle permit records.

What retaining-wall repair means

A repair keeps some part of an existing retaining system in service. The useful starting question is not which surface patch looks best, but why the wall moved, cracked, rotated, lost material, or began passing soil and water. Drainage, foundation movement, reinforcement, toe erosion, surcharge, and conditions above the wall can change the appropriate scope.

This page matches companies only when a selected Seattle permit description explicitly uses repair, failing-wall, or stabilization language. A record documents a past permitted scope; it does not establish workmanship, current availability, or suitability for another site.

Selected permit evidence

What appears in this Seattle record slice

14matching companies
18matching permits
14documented neighborhoods
2021–2026issue-year span

Positive declared costs run from $3,298 to $100,000. These are permit declarations—not bids, invoices, final costs, or price guidance.

Work by neighborhood

Neighborhood pages with enough repair evidence

These are not generic location swaps. Each page has its own permit scopes, mapped ECA context, company comparison, and questions raised by the selected local records.

Compare companies with matching permit evidence

The table gives a short factual company snapshot, the number and geography of matching repair permits, the latest matching record, and current registration context. Expand any row to read the exact public description.

CompanySelected permitsDocumented neighborhoodsLatest matchVerification
R&R Foundation Specialist LLCWA #RRFOUFS829DA

General contractor. Office listed in Everett (North Sound); 8 primary-scope Seattle permits observed since 2021.

2Briarcliff, Columbia CitySep 12, 2023Active through Mar 1, 2028Full profile →
View 2 selected permit records

Repairs to foundation and retaining walls for single family residence per plans.

6924336-CN · Completed · issued Sep 12, 2023 · Briarcliff · $29,850Official Seattle record ↗

Construct site retaining wall repair per plan.

6876494-CN · Completed · issued Dec 7, 2022 · Columbia City · $61,863Official Seattle record ↗
Mcdowell NW Pile King Inc.WA #MCDOWNP011QT

Drilling, Blasting And Soil Sampling contractor. Office listed in Kent (South King); 6 primary-scope Seattle permits observed since 2021.

1Harrison/Denny-BlaineNov 22, 2022Active through Sep 7, 2027Full profile →
View 1 selected permit record

Stabilize exist concrete retaining wall with soil anchors per plan

6866583-CN · Completed · issued Nov 22, 2022 · Harrison/Denny-Blaine · $24,000Official Seattle record ↗
GroundworksWA #GROUN**763O5

General contractor. Office listed in Virginia Beach, outside the core region; 5 primary-scope Seattle permits observed since 2021.

3Greenwood, Fairmount Park, West Queen AnneDec 1, 2025Active through Oct 29, 2026Full profile →
View 3 selected permit records

Construct retaining wall repair adjacent to existing single-family residence per plans.

7080716-CN · Issued · issued Dec 1, 2025 · Greenwood · $6,000Official Seattle record ↗

Stabilize existing site retaining wall at multifamily building per plan.

7069534-CN · Completed · issued May 8, 2025 · Fairmount Park · $99,000Official Seattle record ↗

Construct repairs to existing retaining wall with helical anchors per plan. Review and process 7018832-CN under this permit.

7015480-CN · Completed · issued Nov 7, 2024 · West Queen Anne · $52,197Official Seattle record ↗
Kulchin Foundation Drilling CoWA #KULCHFD995QB

General contractor. Office listed in Lakewood (Pierce / South Sound); 5 primary-scope Seattle permits observed since 2021.

1West Queen AnneMay 19, 2023Active through Nov 9, 2027Full profile →
View 1 selected permit record

Repairs to existing failing retaining wall to single family residence per plan. (Repairs to existing retaining wall affecting 3 properties. Review and processing for 3 records under 6859565-CN).

6859565-CN · Completed · issued May 19, 2023 · West Queen Anne · $35,000Official Seattle record ↗
Eagle Rock Landscaping Inc.WA #EAGLERL883J7

General contractor. Office listed in Seattle; 4 primary-scope Seattle permits observed since 2021.

1North DelridgeNov 22, 2021Active through Jan 14, 2027Full profile →
View 1 selected permit record

Construct repairs to existing retaining wall of existing residential structure per plan

6853024-CN · Expired · issued Nov 22, 2021 · North Delridge · $4,000Official Seattle record ↗
Integral Construction Inc.WA #INTEGCI159K3

General contractor. Office listed in Edmonds (North King / South Snohomish); 4 primary-scope Seattle permits observed since 2021.

1Sunset HillOct 29, 2021Active through Mar 16, 2028Full profile →
View 1 selected permit record

Repair retaining wall on west end of lot for existing single-family residence per plan

6832457-CN · Completed · issued Oct 29, 2021 · Sunset Hill · $100,000Official Seattle record ↗
Terrafirma Foundation Rpr Inc.WA #TERRAFR931LH

General contractor. Office listed in Roseburg, outside the core region; 4 primary-scope Seattle permits observed since 2021.

2Leschi, StevensDec 17, 2024Active through Jun 16, 2027Full profile →
View 2 selected permit records

Construct retaining wall repair with soil nail adjacent to existing single-family residence per plans.

7027913-CN · Withdrawn · issued Dec 17, 2024 · Leschi · $3,298Official Seattle record ↗

Construct site retaining wall & foundation repairs to existing one-family dwelling per plan

6941728-CN · Completed · issued Oct 1, 2023 · Stevens · $50,000Official Seattle record ↗
Advanced Fndtn Supports LLCWA #ADVANFS903DH

General contractor. Office listed in Monroe (North Sound); 2 primary-scope Seattle permits observed since 2021.

1West Queen AnneFeb 15, 2023Active through Mar 10, 2028Full profile →
View 1 selected permit record

Construct repairs to site retaining wall accessory to existing single-family residence per plan

6868930-CN · Completed · issued Feb 15, 2023 · West Queen Anne · $90,000Official Seattle record ↗
Dochnahl Construction Inc.WA #DOCHNC*241R9

General contractor. Office listed in Renton (South King); 2 primary-scope Seattle permits observed since 2021.

1LeschiFeb 3, 2025Active through Jul 3, 2028Full profile →
View 1 selected permit record

Construct retaining walls and pin pile foundation repair to existing one-family dwelling per plan

6967982-CN · Expired · issued Feb 3, 2025 · Leschi · $25,000Official Seattle record ↗
Environmental Construction Inc.WA #ENVIRCI025BA

General contractor. Office listed in Lake Stevens (North Sound); 2 primary-scope Seattle permits observed since 2021.

1Lawton ParkNov 4, 2021Active through Jun 7, 2027Full profile →
View 1 selected permit record

Construct alterations to remove existing failing retaining wall and stabilize slope adjacent to Single-Family Residence per plan

6843661-CN · Completed · issued Nov 4, 2021 · Lawton Park · $10,000Official Seattle record ↗
Pro-Mondo LLCWA #PROMOL*883MU

General contractor. Office listed in Seattle; 2 primary-scope Seattle permits observed since 2021.

1StevensJun 24, 2021Active through Aug 4, 2028Full profile →
View 1 selected permit record

Repairs to rockery for single-family residence per plan.

6830842-CN · Completed · issued Jun 24, 2021 · Stevens · $30,000Official Seattle record ↗
B.G.B Contractor Services LLCWA #BGBCOCS814P1

General contractor. Office listed in Seatac (South King); 1 primary-scope Seattle permit observed since 2021.

1North Queen AnneNov 4, 2022Active through Oct 30, 2027Full profile →
View 1 selected permit record

Construct repairs to remove and replace existing retaining walls per plan.

6761937-CN · Completed · issued Nov 4, 2022 · North Queen Anne · $15,000Official Seattle record ↗
Bellshire Homes Inc.WA #BELLSHL764BE

General contractor. Office listed in Bellevue (Eastside); 1 primary-scope Seattle permit observed since 2021.

1WallingfordSep 8, 2025Active through Jan 5, 2028Full profile →
View 1 selected permit record

Construct rockery repairs accessory to a single-family residence on EAST parcel per plan. (Construct rockery repairs accessory to single family residence. Work spans two parcels. Review and processing for (2) permit records under 7047961-CN.)

7047961-CN · Inspections Completed · issued Sep 8, 2025 · Wallingford · $15,000Official Seattle record ↗
Better BuildersWA #BETTEB*895RL

General contractor. Office listed in Seattle; 1 primary-scope Seattle permit observed since 2021.

1GeneseeMar 3, 2026Active through Dec 13, 2027Full profile →
View 1 selected permit record

Construct repairs to existing retaining wall per plan.

7112203-CN · Issued · issued Mar 3, 2026 · Genesee · $54,000Official Seattle record ↗
R&R Foundation Specialist LLCWA #RRFOUFS829DA

General contractor. Office listed in Everett (North Sound); 8 primary-scope Seattle permits observed since 2021.

Selected permits
2
Latest match
Sep 12, 2023
Documented neighborhoods
Briarcliff, Columbia City
Active through Mar 1, 2028Full profile →
View 2 selected permit records

Repairs to foundation and retaining walls for single family residence per plans.

6924336-CN · Completed · issued Sep 12, 2023 · Briarcliff · $29,850Official Seattle record ↗

Construct site retaining wall repair per plan.

6876494-CN · Completed · issued Dec 7, 2022 · Columbia City · $61,863Official Seattle record ↗
Mcdowell NW Pile King Inc.WA #MCDOWNP011QT

Drilling, Blasting And Soil Sampling contractor. Office listed in Kent (South King); 6 primary-scope Seattle permits observed since 2021.

Selected permits
1
Latest match
Nov 22, 2022
Documented neighborhoods
Harrison/Denny-Blaine
Active through Sep 7, 2027Full profile →
View 1 selected permit record

Stabilize exist concrete retaining wall with soil anchors per plan

6866583-CN · Completed · issued Nov 22, 2022 · Harrison/Denny-Blaine · $24,000Official Seattle record ↗
GroundworksWA #GROUN**763O5

General contractor. Office listed in Virginia Beach, outside the core region; 5 primary-scope Seattle permits observed since 2021.

Selected permits
3
Latest match
Dec 1, 2025
Documented neighborhoods
Greenwood, Fairmount Park, West Queen Anne
Active through Oct 29, 2026Full profile →
View 3 selected permit records

Construct retaining wall repair adjacent to existing single-family residence per plans.

7080716-CN · Issued · issued Dec 1, 2025 · Greenwood · $6,000Official Seattle record ↗

Stabilize existing site retaining wall at multifamily building per plan.

7069534-CN · Completed · issued May 8, 2025 · Fairmount Park · $99,000Official Seattle record ↗

Construct repairs to existing retaining wall with helical anchors per plan. Review and process 7018832-CN under this permit.

7015480-CN · Completed · issued Nov 7, 2024 · West Queen Anne · $52,197Official Seattle record ↗
Kulchin Foundation Drilling CoWA #KULCHFD995QB

General contractor. Office listed in Lakewood (Pierce / South Sound); 5 primary-scope Seattle permits observed since 2021.

Selected permits
1
Latest match
May 19, 2023
Documented neighborhoods
West Queen Anne
Active through Nov 9, 2027Full profile →
View 1 selected permit record

Repairs to existing failing retaining wall to single family residence per plan. (Repairs to existing retaining wall affecting 3 properties. Review and processing for 3 records under 6859565-CN).

6859565-CN · Completed · issued May 19, 2023 · West Queen Anne · $35,000Official Seattle record ↗
Eagle Rock Landscaping Inc.WA #EAGLERL883J7

General contractor. Office listed in Seattle; 4 primary-scope Seattle permits observed since 2021.

Selected permits
1
Latest match
Nov 22, 2021
Documented neighborhoods
North Delridge
Active through Jan 14, 2027Full profile →
View 1 selected permit record

Construct repairs to existing retaining wall of existing residential structure per plan

6853024-CN · Expired · issued Nov 22, 2021 · North Delridge · $4,000Official Seattle record ↗
Integral Construction Inc.WA #INTEGCI159K3

General contractor. Office listed in Edmonds (North King / South Snohomish); 4 primary-scope Seattle permits observed since 2021.

Selected permits
1
Latest match
Oct 29, 2021
Documented neighborhoods
Sunset Hill
Active through Mar 16, 2028Full profile →
View 1 selected permit record

Repair retaining wall on west end of lot for existing single-family residence per plan

6832457-CN · Completed · issued Oct 29, 2021 · Sunset Hill · $100,000Official Seattle record ↗
Terrafirma Foundation Rpr Inc.WA #TERRAFR931LH

General contractor. Office listed in Roseburg, outside the core region; 4 primary-scope Seattle permits observed since 2021.

Selected permits
2
Latest match
Dec 17, 2024
Documented neighborhoods
Leschi, Stevens
Active through Jun 16, 2027Full profile →
View 2 selected permit records

Construct retaining wall repair with soil nail adjacent to existing single-family residence per plans.

7027913-CN · Withdrawn · issued Dec 17, 2024 · Leschi · $3,298Official Seattle record ↗

Construct site retaining wall & foundation repairs to existing one-family dwelling per plan

6941728-CN · Completed · issued Oct 1, 2023 · Stevens · $50,000Official Seattle record ↗
Advanced Fndtn Supports LLCWA #ADVANFS903DH

General contractor. Office listed in Monroe (North Sound); 2 primary-scope Seattle permits observed since 2021.

Selected permits
1
Latest match
Feb 15, 2023
Documented neighborhoods
West Queen Anne
Active through Mar 10, 2028Full profile →
View 1 selected permit record

Construct repairs to site retaining wall accessory to existing single-family residence per plan

6868930-CN · Completed · issued Feb 15, 2023 · West Queen Anne · $90,000Official Seattle record ↗
Dochnahl Construction Inc.WA #DOCHNC*241R9

General contractor. Office listed in Renton (South King); 2 primary-scope Seattle permits observed since 2021.

Selected permits
1
Latest match
Feb 3, 2025
Documented neighborhoods
Leschi
Active through Jul 3, 2028Full profile →
View 1 selected permit record

Construct retaining walls and pin pile foundation repair to existing one-family dwelling per plan

6967982-CN · Expired · issued Feb 3, 2025 · Leschi · $25,000Official Seattle record ↗
Environmental Construction Inc.WA #ENVIRCI025BA

General contractor. Office listed in Lake Stevens (North Sound); 2 primary-scope Seattle permits observed since 2021.

Selected permits
1
Latest match
Nov 4, 2021
Documented neighborhoods
Lawton Park
Active through Jun 7, 2027Full profile →
View 1 selected permit record

Construct alterations to remove existing failing retaining wall and stabilize slope adjacent to Single-Family Residence per plan

6843661-CN · Completed · issued Nov 4, 2021 · Lawton Park · $10,000Official Seattle record ↗
Pro-Mondo LLCWA #PROMOL*883MU

General contractor. Office listed in Seattle; 2 primary-scope Seattle permits observed since 2021.

Selected permits
1
Latest match
Jun 24, 2021
Documented neighborhoods
Stevens
Active through Aug 4, 2028Full profile →
View 1 selected permit record

Repairs to rockery for single-family residence per plan.

6830842-CN · Completed · issued Jun 24, 2021 · Stevens · $30,000Official Seattle record ↗
B.G.B Contractor Services LLCWA #BGBCOCS814P1

General contractor. Office listed in Seatac (South King); 1 primary-scope Seattle permit observed since 2021.

Selected permits
1
Latest match
Nov 4, 2022
Documented neighborhoods
North Queen Anne
Active through Oct 30, 2027Full profile →
View 1 selected permit record

Construct repairs to remove and replace existing retaining walls per plan.

6761937-CN · Completed · issued Nov 4, 2022 · North Queen Anne · $15,000Official Seattle record ↗
Bellshire Homes Inc.WA #BELLSHL764BE

General contractor. Office listed in Bellevue (Eastside); 1 primary-scope Seattle permit observed since 2021.

Selected permits
1
Latest match
Sep 8, 2025
Documented neighborhoods
Wallingford
Active through Jan 5, 2028Full profile →
View 1 selected permit record

Construct rockery repairs accessory to a single-family residence on EAST parcel per plan. (Construct rockery repairs accessory to single family residence. Work spans two parcels. Review and processing for (2) permit records under 7047961-CN.)

7047961-CN · Inspections Completed · issued Sep 8, 2025 · Wallingford · $15,000Official Seattle record ↗
Better BuildersWA #BETTEB*895RL

General contractor. Office listed in Seattle; 1 primary-scope Seattle permit observed since 2021.

Selected permits
1
Latest match
Mar 3, 2026
Documented neighborhoods
Genesee
Active through Dec 13, 2027Full profile →
View 1 selected permit record

Construct repairs to existing retaining wall per plan.

7112203-CN · Issued · issued Mar 3, 2026 · Genesee · $54,000Official Seattle record ↗

What a useful repair scope should settle

  • The diagnosed cause of movement and which existing components remain in service.
  • Structural, drainage, excavation, temporary-support, access, and restoration responsibilities.
  • Whether engineering, geotechnical input, survey work, permitting, or special inspections are required.
  • Where collected water will discharge and how the system can be maintained.
  • How adjacent property, stairs, fences, paving, utilities, and occupied structures will be protected.

Seattle’s published no-permit conditions depend on measured height, ECA status, and possible damage to adjoining properties or structures. A permit exemption is not an engineering conclusion; confirm the current pathway for the actual address and proposal.

Guides supporting this service topic

These articles answer narrower planning and comparison questions, then link readers back to this service and its neighborhood evidence.

Official sources

  1. Retaining Walls & RockeriesSeattle Department of Construction & Inspections
  2. Environmentally Critical Areas CodeSeattle Department of Construction & Inspections