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PropDoctor

Retaining Wall Construction Cost in Kent, WA

Detailed pricing guide with local market adjustments and material comparisons

Kent Average

$3,450–$11,500

Market Tier

Large City

Cost Breakdown

Retaining Wall Construction Cost in Kent

Large City
LowAverageHigh
$3,450$7,475$11,500

Market Tier

Large City (1.15x)

Large city with competitive market and moderate-high costs

Material Cost Comparison

Retaining wall blocks or stone(Budget)
$2,588–$8,625
Gravel for base and backfill(Mid-Range)
$3,450–$11,500
Landscape fabric(Premium)
$4,830–$16,100
Factors that affect your cost
  • Wall length and height
  • Material type
  • Drainage system behind wall
  • Excavation requirements
  • Geogrid reinforcement needed
  • Soil conditions
  • Permit requirements (walls over 4 feet)
  • Accessibility for equipment

Save Money with DIY?

Retaining walls under 3 feet tall are manageable DIY projects using interlocking landscape blocks. Excavate a level trench, add compacted gravel base, stack blocks with construction adhesive, and backfill with drainage gravel behind the wall.

Call a pro when: Hire a professional for walls over 3-4 feet tall (may require engineering and permits), walls supporting structures, walls on steep slopes, or natural stone walls requiring skilled masonry.

Get Quotes in Kent

ProPortal
View all 81 landscapers in Kent

Kent Housing Market

Median Home Price

$660,000

Homes for Sale

134

Price per Sq Ft

$364

Local Pros

560

Home Service Professionals Near Kent

multimedia_specialist 90lender 79Flooring 75Inspectors 69Cleaners 65Painters 63Landscapers 60Roofers 59

Median Household Income

$90,416

Median Home Value

$537,500

Median Rent

$1,833/mo

Homeownership Rate

56.9%

Population

135,015

Median Year Built

1985

Source: U.S. Census Bureau, ACS 2023 5-Year Estimates

Track Your Costs

PropDoctor
Landscaping
PropDoctor

Retaining Wall Construction

Date

April 2026

Cost

$7,475

Vendor

Your local pro

Warranty

10-year material warranty

Kent average: $3,450$11,500

Before

Issue documented with photos

After

Repair completed, area sealed

Materials Used

Retaining wall blocks or stoneGravel for base and backfillLandscape fabricDrainage pipe

Warranty Details

10-year material warranty

Auto-Checkup Created

"Retaining Wall Inspection" — every 24 months

Added by youApril 2026

Property Health Score

Fair

74

exterior category +8 pts(6674)

Documentation19/25
Maintenance20/25
Warranty22/25
Investment21/25

Your health score is calculated based on documentation completeness, maintenance currency, warranty coverage, and investment tracking.

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Get a Personalized Estimate

SmartSearch
Find a landscaper near me

Find a landscaper near me

I found 81 landscapers in your area. Here are the top results:

ProPortal
Professionals Found
81 results
SM

Smith & Sons

Connected

landscaper

4.9(47)
BookQuote
JR

J&R Home Services

landscaper

4.7(23)
From $95/hr
MessageView
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landscaper
Title:landscaper
Category:landscaper
Date:2026-04-05
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Cost FAQ

What is the average cost of retaining wall construction in Kent?
The average cost of retaining wall construction in Kent, WA ranges from $3,450 to $11,500. The final price depends on Wall length and height, Material type, Drainage system behind wall.
What factors affect retaining wall construction cost?
Key factors include: Wall length and height, Material type, Drainage system behind wall, Excavation requirements, Geogrid reinforcement needed, Soil conditions, Permit requirements (walls over 4 feet), Accessibility for equipment. In Kent, local labor rates and material availability also influence pricing.
Can I save money by doing retaining wall construction myself?
Retaining walls under 3 feet tall are manageable DIY projects using interlocking landscape blocks. Excavate a level trench, add compacted gravel base, stack blocks with construction adhesive, and backfill with drainage gravel behind the wall. Hire a professional for walls over 3-4 feet tall (may require engineering and permits), walls supporting structures, walls on steep slopes, or natural stone walls requiring skilled masonry.
How do I get accurate quotes for retaining wall construction in Kent?
Get at least 3 quotes from licensed professionals in Kent. Use Fizbo SmartSearch to find and compare local landscapers, read reviews, and request estimates — all in one place.

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