State licence
WA contractor licensing
Check the licence with the state board before work starts.
Open the official lookup →Retaining wall installation near me
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Retaining wall installation in Seattle, WA
There are 30 verified retaining firms listed in Seattle, WA. Listings are compiled from public business records and checked against the WA contractor licensing; each record shows the date it was last verified.
Verified listings30 verified listingsSpring band $4,500–$10,500WA licence + Seattle permit links
Information last verified: 8 November 2026. Dataset compiled 8 November 2026.
What qualifies as a listing
Sewer lines in Seattle
Retaining wall installation work in Seattle follows the same pattern as the rest of WA: the failure mode decides the method, not the other way round.
Permit rules in Seattle are set locally. Ask the city whether your job needs a permit and who pulls it.
What retaining work costs in Seattle
The national range is from the site’s cost guide, checked 2026-11-08. The local column applies the 1.00× metro factor and rounds to $5. It is a planning band, not a quote.
| Job | National range | Seattle planning band | What it includes |
|---|---|---|---|
| Block wall | $4,500–$10,500 | $4,500–$10,500 | Typical US range |
| Poured concrete | $7,500–$18,000 | $7,500–$18,000 | Typical US range |
| Timber wall | $3,000–$7,500 | $3,000–$7,500 | Typical US range |
| Gabion | $6,000–$12,000 | $6,000–$12,000 | Typical US range |
| Boulder wall | $6,000–$13,500 | $6,000–$13,500 | Typical US range |
| Drainage and backfill | $1,500–$4,500 | $1,500–$4,500 | Typical US range |
Editorial metro factor, not a measured price index. The factor is not a measured local price index; it estimates labour and permit overhead. A quote that is far below the band usually has a smaller scope, not a better price.
Licence and permit checks for Seattle
Local permit
Seattle permit office
Ask whether the job needs a permit and who pulls it.
Open the permit office →These links go to the official state or city page. The directory does not file permits and does not verify a contractor’s current insurance for you.
Sewer line firms in Seattle, WA
30 verified records. The order is the dataset order, not a ranking. Each card shows the date its record was last verified.
Verified
New Life Rockeries & Retaining Walls Seattle
Retaining wall installation contractor
- Address
- 120 Harvard Ave
Seattle, WA - Phone
- (206) 489-3734
- Website
- Not published
- Rating
- 4.9 / 5 · 78 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Seattle Rockeries & Retaining Walls
Retaining wall installation contractor
- Address
- 6534 125th Ave
Seattle, WA - Phone
- (206) 960-9003
- Website
- Not published
- Rating
- 4.7 / 5 · 87 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Seattle Precision Retaining Walls
Retaining wall installation contractor
- Address
Seattle, WA- Phone
- (206) 741-0029
- Website
- Not published
- Rating
- 4.9 / 5 · 53 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Rainier Rockeries and Construction
Retaining wall installation contractor
- Address
Seattle, WA- Phone
- (425) 260-1595
- Website
- Not published
- Rating
- 5.0 / 5 · 103 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
A & J Retaining Walls
Retaining wall installation contractor
- Address
- 22214 Brier Rd
Seattle, WA - Phone
- (206) 423-5384
- Website
- Not published
- Rating
- 4.8 / 5 · 99 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
New Life Rockeries & Retaining Walls Lynnwood
Retaining wall installation contractor
- Address
Seattle, WA- Phone
- (425) 357-7085
- Website
- Not published
- Rating
- 4.9 / 5 · 29 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Seattle Retaining Walls
Retaining wall installation contractor
- Address
Seattle, WA- Phone
- (206) 350-2361
- Website
- Not published
- Rating
- 3.9 / 5 · 15 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Economy Landscaping LLC
Retaining wall installation contractor
- Address
- 9052 3rd Ave
Seattle, WA - Phone
- (206) 676-2045
- Website
- Not published
- Rating
- 5.0 / 5 · 51 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Js landscape and excavation
Retaining wall installation contractor
- Address
Seattle, WA- Phone
- (206) 946-0193
- Website
- Not published
- Rating
- 4.8 / 5 · 95 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Riggins Construction LLC
Retaining wall installation contractor
- Address
- 7511 Greenwood Ave
Seattle, WA - Phone
- (206) 370-9198
- Website
- Not published
- Rating
- 4.6 / 5 · 77 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
North East Landscaping & Design
Retaining wall installation contractor
- Address
- 4311 11th Ave
Seattle, WA - Phone
- (206) 608-2614
- Website
- Not published
- Rating
- 4.9 / 5 · 215 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Devonshire Landscapes Inc
Retaining wall installation contractor
- Address
- 1701 SW 112th St
Seattle, WA - Phone
- (206) 762-1933
- Website
- Not published
- Rating
- 5.0 / 5 · 161 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Seattle Sustainable Landscapes
Retaining wall installation contractor
- Address
- 9320 15th Ave
Seattle, WA - Phone
- (206) 414-8615
- Website
- Not published
- Rating
- 4.9 / 5 · 90 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Eagle Rock Landscaping
Retaining wall installation contractor
- Address
Seattle, WA- Phone
- (206) 459-1216
- Website
- Not published
- Rating
- 4.3 / 5 · 36 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Portal Seattle Concrete
Retaining wall installation contractor
- Address
Seattle, WA- Phone
- (206) 829-6396
- Website
- Not published
- Rating
- 5.0 / 5 · 101 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Rock Solid Landscapes
Retaining wall installation contractor
- Address
- 3300 NE 55th St
Seattle, WA - Phone
- (206) 523-7625
- Website
- Not published
- Rating
- 4.8 / 5 · 45 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Pavers and Concrete Construction
Retaining wall installation contractor
- Address
- 6559 5th Pl
Seattle, WA - Phone
- (206) 326-0720
- Website
- Not published
- Rating
- 4.9 / 5 · 8 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
A-1 Stone Landscaping & Construction Corp
Retaining wall installation contractor
- Address
Seattle, WA- Phone
- (206) 323-1936
- Website
- Not published
- Rating
- 4.9 / 5 · 19 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Premier Landscape Construction
Retaining wall installation contractor
- Address
Seattle, WA- Phone
- (425) 520-2113
- Website
- Not published
- Rating
- 4.8 / 5 · 50 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
New Life Rockeries & Retaining Walls Marysville
Retaining wall installation contractor
- Address
Seattle, WA- Phone
- (360) 551-4936
- Website
- Not published
- Rating
- 4.8 / 5 · 23 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Terrain Seattle
Retaining wall installation contractor
- Address
- 18040 Des Moines Memorial Dr
Seattle, WA - Phone
- (206) 444-5088
- Website
- Not published
- Rating
- 4.0 / 5 · 8 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
West Edge Landworks
Retaining wall installation contractor
- Address
- 4015 16th Ave
Seattle, WA - Phone
- (206) 556-2932
- Website
- Not published
- Rating
- 4.9 / 5 · 45 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Ecoyards
Retaining wall installation contractor
- Address
- 1605 S 93rd St
Seattle, WA - Phone
- (206) 770-7879
- Website
- Not published
- Rating
- 4.9 / 5 · 45 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Pacifica Landscapes
Retaining wall installation contractor
- Address
- 2366 Eastlake Ave
Seattle, WA - Phone
- (206) 551-9872
- Website
- Not published
- Rating
- 4.4 / 5 · 39 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Graypaw Concrete Contractors
Retaining wall installation contractor
- Address
- 1001 4th Ave
Seattle, WA - Phone
- (360) 686-9677
- Website
- Not published
- Rating
- 4.9 / 5 · 42 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Acosta Landscape and Pavers LLC.
Retaining wall installation contractor
- Address
- 20921 44th Ave
Seattle, WA - Phone
- (206) 730-8004
- Website
- Not published
- Rating
- 4.9 / 5 · 107 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Urban Oasis Design and Construction LLC
Retaining wall installation contractor
- Address
- 7353 15th Ave
Seattle, WA - Phone
- (206) 299-1566
- Website
- Not published
- Rating
- 4.8 / 5 · 16 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Sta-Built Construction, LLC
Retaining wall installation contractor
- Address
- 2027 196th St
Seattle, WA - Phone
- (425) 247-3430
- Website
- Not published
- Rating
- 4.9 / 5 · 101 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Integral Chimney Clean Construction Inc
Retaining wall installation contractor
- Address
- 23415 97th Pl
Seattle, WA - Phone
- (425) 270-4641
- Website
- Not published
- Rating
- 5.0 / 5 · 2 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Verified
Sage and Stone LLC
Retaining wall installation contractor
- Address
- 8901 Aurora Ave
Seattle, WA - Phone
- (206) 701-0235
- Website
- Not published
- Rating
- 4.5 / 5 · 37 reviews
- Place ID
- Not recorded
- Record
- Information last verified: 8 November 2026
Firms in Seattle, WA are shown in the order supplied by the dataset, not by rating or payment. No placement is sold. Each name opens that firm’s own profile page.
How this list was built
The directory starts from public business records: the firm’s own website, its published address and phone number, and the state or city licence register named above. A record is marked verified only when a person has checked the name, address, phone and licence against those sources and recorded the date. The place_id field is kept so a future rebuild can match the same entity without guessing.
The national cost band comes from the site’s cost guide. The metro factor is an editorial estimate, not a survey. No rating, review text, price or availability is invented for a verified page; where a public rating is shown it is attributed and dated.
If a record is wrong, the firm can ask for a correction or removal.Corrections: contact@retainingwalllab.com. Read the fulllisting verification method.
Retaining wall installation in Seattle: common questions
How many retaining firms are listed in Seattle?
30 verified retaining firms are listed in Seattle, WA. 0 publish a website, and 30 records have been verified. The city page is generated only because the dataset contains at least one genuine listing record; a city with no record has no page.
What does retaining wall installation cost in Seattle?
The directory’s planning band for a torsion spring replacement is $4,500–$10,500. It is the national range ($4,500–$10,500, checked 2026-11-08) multiplied by an editorial metro factor of 1.00 and rounded to $5. It is an estimate, not a local price survey, and not a quote. Get three written quotes for the same scope.
Does WA license retaining contractors?
Check the licence with the state board before work starts. The official lookup is the WA contractor licensing, linked on this page. A licence or registration number is a starting point, not a substitute for checking insurance and the scope of the work.
Do I need a permit for a retaining in Seattle?
Ask whether the job needs a permit and who pulls it. The permit office is the Seattle permit office, linked on this page. If the contractor says no permit is needed, ask them to put the reason in writing.
Retaining wall installation near Seattle
The closest metros in this directory, by straight-line distance. Each link opens that city’s own cost, licence and permit page.
Guides for Seattle homeowners
What retaining wall installation costs
Installed ranges by job, and the five lines every quote should show.
Read the guide →Diagnose the problem first
Symptom to cause, what proves it, and what not to do first.
Read the guide →How to choose a contractor
Licence, insurance, warranty and the questions that expose a thin scope.
Read the guide →Compare the options
Repair, replace or change the opening — decided on scope and five-year cost.
Read the guide →Browse the whole directory.
All service areas ·All WA service areas ·Cost guides ·Methodology