Serving the Austin area  ·  (737) 204-6261  ·  Open Mon-Sun 7am-7pm
📞 (737) 204-6261 Free Quote
Retaining Wall Installation professional in Austin
4.9/5 238 verified Google reviews

Retaining Wall Contractor in Austin, TX · Licensed & Insured Professionals

Licensed & Insured, in Austin and surrounding areas. Retaining Wall Installation · Retaining Wall Repair · Retaining Wall Replacement.

Licensed Contractor Licensed & Insured Free Quote 24h Locally Owned Open Mon-Sun 7am-7pm in Austin and surrounding areas
+238Verified Reviews
10Years in Business
4.9 ★Google Rating
24/7Available

Your Free Quote Request

Confidential · Response within 24h

✅ No hidden fees💳 Cards accepted🛡️ Licensed & Insured
Our services

Our Retaining Wall Services in Austin

All your work handled by qualified professionals in Austin

Retaining Wall Installation

New engineered retaining walls built to hold back soil, level your slope, and last for decades.

Included in your service

  • Compacted footing and gravel base sized to your wall height
  • Geogrid reinforcement and correct batter for long-term stability
  • Drainage aggregate, filter fabric, and weep holes built in behind the wall
  • Free on-site assessment and written estimate within 24h
Learn more→

Retaining Wall Repair

Fast diagnosis and repair of leaning, bowing, or cracked walls before they fail.

Included in your service

  • Root-cause diagnosis of the failure: drainage, surcharge load, or footing
  • Tieback anchors installed to pull a leaning wall back true
  • Clearing or rebuilding the clogged, missing drainage that drove the failure
  • Same-week scheduling for walls at risk of collapse
Learn more→

Retaining Wall Replacement

Full tear-out of failed railroad tie and timber walls, rebuilt in modern engineered block.

Included in your service

  • Removal and haul-away of the old rotted or collapsed wall
  • Tie-to-block conversion using segmental retaining wall (SRW) units
  • New engineered base and compacted backfill built to current code
  • Restoration of the yard grade and finished surfaces above the wall
Learn more→

Concrete Retaining Walls

Poured concrete and reinforced CMU walls for maximum strength on tall or high-load sites.

Included in your service

  • Steel-reinforced footing engineered for the wall load
  • Formed and poured concrete or grouted reinforced block (CMU)
  • Waterproof membrane and drainage board on the retained face
  • Built for tall walls or walls carrying a driveway or structure surcharge
Learn more→

Block & Segmental Retaining Walls

Segmental block walls in Allan Block, Versa-Lok, Keystone, and Redi-Rock systems.

Included in your service

  • Interlocking SRW units, mortar-free, with built-in setback batter
  • Wide choice of colors, textures, and matching wall caps
  • Geogrid tie-back layers for reinforced walls over four feet
  • Curves, steps, and integrated seat walls or planters
Learn more→

Boulder & Natural Stone Walls

Natural boulder and stacked-stone walls that blend structure with the landscape.

Included in your service

  • Hand-placed quarried boulders keyed and buried for stability
  • Naturalistic stacked-stone and rockery finishes
  • Excavation and grading to seat a solid base course
  • Ideal for gravity walls, terracing, and erosion-prone slopes
Learn more→

Timber Retaining Walls

Pressure-treated timber walls, an economical, natural-look option for lower grades.

Included in your service

  • Ground-contact-rated pressure-treated lumber
  • Deadman anchors set back into the slope for holding power
  • Gravel backfill and drainage to slow rot and pressure buildup
  • Cost-effective for shorter garden and planting-bed walls
Learn more→

Slope Stabilization & Erosion Control

Hillside and erosion control that stops soil movement and protects your property.

Included in your service

  • Geogrid-reinforced soil and terraced tiers on steep grades
  • Tieback anchors or soil nailing where access is limited
  • Regrading and swales to redirect surface water off the slope
  • Erosion matting and planting to lock down the finished face
Learn more→

Retaining Wall Drainage

Proper drainage is the single biggest factor in whether a retaining wall survives.

Included in your service

  • French drain and perforated pipe installed at the wall footing
  • Weep holes cut to relieve hydrostatic pressure behind the wall
  • Clean drainage gravel wrapped in filter fabric against the backfill
  • Surface grading to carry runoff away from the structure
Learn more→

Railroad Tie Wall Replacement

Removal of aging creosote railroad tie walls, rebuilt in modern engineered materials.

Included in your service

  • Demolition and haul-away of creosote-treated ties from the 80s and 90s
  • Rebuild in segmental block, poured concrete, or natural stone
  • Fresh drainage gravel and perforated pipe the old tie wall never had
  • Wall height and permit review before demolition begins
Learn more→

Leaning & Collapsed Wall Repair

Priority response for leaning, bulging, and collapsed walls before they take out the slope.

Included in your service

  • Emergency site securing and debris removal after a collapse
  • Tieback anchors and soil nailing to arrest a bulging wall
  • Drainage correction to release the water pressure behind the failure
  • Partial or full engineered rebuild when the wall is past saving
Learn more→
Simple Process

How It Works in Austin

1

Call or Request a Free Quote

Reach us by phone at (737) 204-6261 or fill out the estimate form. We get back to you within 24 hours, no commitment required.

2

We Assess On-Site

Our Retaining Wall Contractor visits your property, evaluates the project, and provides a written quote before any work begins.

3

We Do the Work and Clean Up

Our crew completes the retaining wall and leaves your property clean and tidy. Full cleanup is included.

Why choose us?

Trusted retaining wall installation, repair, and replacement service in Austin

🏅

Licensed contractors

Continuous training, professional equipment, meticulous and code-compliant work

🛡️

Licensed & Insured

Full coverage on all our job sites, no exceptions

⚡

Available Mon-Sun 7am-7pm

Emergencies, weekends, holidays: available when you need us

💰

100% Free Quote

Response within 24h, no commitment, by phone or form

+238
satisfied clients
4.9/5Google Rating
10Years in Business
📞 (737) 204-6261

Available Mon-Sun 7am-7pm

Team Austin Retaining Wall in Austin
✅ Licensed Contractor 🛡️ Licensed & Insured ⭐ 238+ reviews
About us

Your trusted service in Austin

Austin Retaining Wall is a team of local certified professionals based in Austin. We respond quickly in Austin and surrounding areas with professional equipment suited to every job.

Free estimate, transparent pricing, no subcontracting. Tell us about your slope or wall. We'll handle the rest.

📞 Call (737) 204-6261
Verified client reviews

238+ Verified Client Reviews in Austin

⭐⭐⭐⭐⭐ 4.9/5 · 238 verified Google reviews

Before & after results

Our work in Austin: before & after results

Real photos of our work in Austin · Each image shows the final result achieved for our clients

Result retaining wall in Austin - Austin Retaining Wall
Result retaining wall in Austin - Austin Retaining Wall
Result retaining wall in Austin - Austin Retaining Wall
Result retaining wall in Austin - Austin Retaining Wall
Rates in Austin

Our Retaining Wall Rates in Austin · 2026 Pricing Guide

Indicative estimates: your free personalized quote is always exact

Our Rates for Retaining Wall Installation in Austin

Service / CriteriaIndicative RateDetails
Segmental Block Wall (3 to 4 feet)Starting at $30/sq ftIncludes footing, block, geogrid, and gravel backfill on stable, accessible soil with standard drainage
Poured Concrete Wall (4 to 6 feet)Starting at $40/sq ftReinforced concrete, integral footing, drain pipe and backfill, battered or vertical face, cap stone optional
Boulder and Natural Stone Wall (2 to 5 feet)Starting at $45/sq ftDry-stacked or mortared stone, 18 to 36 inches thick, drainage core, material cost and labor intensive but long-lasting
Engineered Design and Hillside InstallationOn estimateSteep terrain, poor soil, tall walls, or city-required engineered drawings require site assessment and custom design
Travel and Site VisitIncludedNo mileage fee within Austin service area, included in estimate and final invoice
Free EstimateFreeResponse within 24 hours, detailed site assessment, no obligation to hire, call (737) 204-6261

Our Rates for Retaining Wall Repair in Austin

Service / CriteriaIndicative RateDetails
Drainage and Backfill RepairStarting at $1,500Install perforated pipe and gravel backfill behind the wall; cost increases with wall length and excavation depth.
Tieback Anchors or Soil NailsStarting at $2,500Drill and grout anchors to resist lateral push; price per anchor plus labor; typical job uses two to four anchors.
Partial Wall RebuildStarting at $4,500Remove and rebuild a failed section using block, concrete, or segmental SRW; cost depends on height, length, and material choice.
Full Wall ReplacementOn estimateComplete removal and rebuild of entire wall; requires on-site inspection to assess footing depth, soil conditions, and structural scope.
TravelIncludedNo separate mileage fee within Austin and surrounding service areas; estimate includes site visit and written proposal.
EstimateFreeOn-site inspection, photos, written scope, and pricing; response within 24 hours; no obligation to book; call (737) 204-6261.

Our Rates for Retaining Wall Replacement in Austin

Service / CriteriaIndicative RateDetails
Segmental Block or Poured Concrete WallsStarting at $35/sq ftIncludes demolition, new footing, drainage, backfill, and compaction for standard residential walls on level sites
Boulder or Natural Stone WallsStarting at $50/sq ftHigher cost reflects material sourcing, hand placement, and skilled labor required for hillside and heritage applications
Engineered Timber or Composite WallsStarting at $40/sq ftIncludes pressure-treated lumber or composite boards, steel posts, anchors, and specialized drainage for short terraces
Difficult Access or Hillside ReplacementOn estimateSteep slopes, tight backyards, or proximity to structures require equipment rental and additional labor time on-site assessment
Estimate and Site VisitFreeResponse within 24 hours at (737) 204-6261, includes structural assessment and material recommendations no obligation

Our Rates for Concrete Retaining Walls in Austin

Service / CriteriaIndicative RateDetails
Poured Concrete Retaining WallStarting at $35/sq ftIncludes engineered footing, rebar, weep holes, and standard backfill. Height and site access are primary cost drivers.
Reinforced CMU Block WallStarting at $32/sq ftConcrete masonry units with rebar cores and bond beams. Faster installation than poured concrete for medium heights.
Tiered or Multi-Level WallsOn estimateMultiple independent walls require separate footings and drainage. Site assessment needed to price accurately for your slope.
Stone Veneer or Aesthetic FinishAdd 15 to 30 percentAustin limestone or natural stone facing adds material and labor cost but improves curb appeal and weather resistance.
Permitting and EngineeringIncludedWe handle all permit coordination and provide engineered drawings required by Austin, Round Rock, Cedar Park, and other local jurisdictions.
Free EstimateNo chargeSite visit, soil assessment, and written quote within 24 hours. No obligation to book. Call (737) 204-6261.

Our Rates for Block & Segmental Retaining Walls in Austin

Service / CriteriaIndicative RateDetails
Simple garden wall or terraceStarting at $25/sq ftStraightforward single or double-height segmental blocks on level or gently sloped sites with good drainage
Medium-height wall with geogrid and drainageStarting at $40/sq ft4 to 8 foot walls with engineered geogrid reinforcement, French drain, and backfill on sloped or clay soil lots
Tall or tiered wall with engineered designStarting at $60/sq ft8 to 15 foot walls with multiple geogrid layers, engineered drawings, complex drainage, and driveway or structure surcharge
Difficult access or rock excavationOn estimateNarrow lots, limestone removal, or sites requiring specialized equipment and extended labor time need site assessment
Travel and site visitIncludedNo mileage or travel charge for estimates and jobs within Austin and surrounding service areas
Free estimateFreeSame-day or 24-hour response, no obligation to book, includes soil assessment and realistic price range

Our Rates for Boulder & Natural Stone Walls in Austin

Service / CriteriaIndicative RateDetails
Boulder and Natural Stone Wall InstallationStarting at $25/sq ftMachine-placed boulders or cut stone with proper base, drainage, and backfill on accessible, stable sites with standard height and no special engineering
Tiered or Complex Stone Wall SystemStarting at $35/sq ftMultiple lower walls on steep slopes, engineered design, limited access, or poor soil conditions requiring stabilization and specialized placement
Stone Wall Repair or ReplacementStarting at $30/sq ftRemoval of failed timber or concrete wall, site prep, and new boulder or stone construction, with cost varying by debris removal complexity
Engineered Design and PermittingOn estimateRequired for walls above 4 feet or supporting a surcharge such as a driveway, includes structural drawings and local building department coordination
Free Estimate and Site EvaluationFreeNo-obligation assessment of your slope, soil, drainage, and wall scope, response within 24 hours, call (737) 204-6261 today

Our Rates for Timber Retaining Walls in Austin

Service / CriteriaIndicative RateDetails
Standard Timber Wall InstallationStarting at $20/sq ftPressure-treated posts and beams, proper footing, basic drainage, compacted backfill, typical Austin soil and access
Timber Wall with Enhanced DrainageStarting at $28/sq ftIncludes perforated drain line, gravel backfill, geotextile fabric, recommended for clay soils and high water tables
Timber Wall Repair or ReinforcementStarting at $25/sq ftAssessment, partial or full replacement of rotting sections, improved drainage, foundation stabilization on existing walls
Terraced or Complex Multi-Level Timber WallsOn estimateHeight, slope angle, soil conditions, and site access vary widely; site visit required before pricing
Free Estimate and Site AssessmentFreeWe visit your property, evaluate soil type and drainage, measure the wall area, and provide a detailed written quote within 24 hours

Our Rates for Slope Stabilization & Erosion Control in Austin

Service / CriteriaIndicative RateDetails
Single retaining wall, 4 feet tall, 20-30 feet longStarting at $4,500Includes footing, wall, geogrid, backfill, and basic drainage for rocky or clay soils
Terraced two-wall system, moderate slopeStarting at $10,000Two walls with geogrid, perimeter drainage, and compacted backfill; typical for driveways and steep yards
Large or engineered slope stabilizationOn estimateMulti-tiered walls, extensive drainage, geotechnical analysis, and engineered drawings required for tall or complex slopes
Site visit and free estimateFreeWe assess slope angle, soil type, drainage needs, and permit requirements; response within 24 hours
Travel and mobilizationIncludedNo separate mileage or call-out fee for Austin and surrounding areas within our service zone
Permit and engineering drawingsQuoted separatelyRequired for walls over 4 feet or supporting a surcharge; cost depends on wall height and site complexity

Our Rates for Retaining Wall Drainage in Austin

Service / CriteriaIndicative RateDetails
French Drain Retrofit (under 4 feet)Starting at $2,500Perforated pipe, gravel, fabric, and daylight slope; includes excavation and backfill compaction for accessible walls
Medium Wall with Weep Holes (4-6 feet)Starting at $4,000French drain plus weep hole drilling or casting; site access and soil type determine final cost within this range
Tall or Engineered Wall with Membrane (6+ feet)Starting at $6,500Waterproofing membrane, full French drain system, weep holes, and reinforced gravel backfill; complex sites or poor drainage outfall increase price
Sump Pit and Pump SystemStarting at $5,500Collection pit, submersible pump, and discharge line; necessary when daylight drainage is impossible or water table is high
Travel and Site VisitIncludedNo mileage fees or travel charges within Austin and surrounding service areas; estimate response within 24 hours
Free EstimateNo chargeOn-site assessment, drainage plan review, and written quote with no obligation to hire; call (737) 204-6261

Our Rates for Railroad Tie Wall Replacement in Austin

Service / CriteriaIndicative RateDetails
Segmental Block Wall ReplacementStarting at $35/sq ftMost common choice in Austin. Includes demolition, haul-away, drainage, and new block installation. Price increases with wall height and access difficulty.
Poured Concrete Wall ReplacementStarting at $40/sq ftMonolithic concrete structure with rebar reinforcement. Stronger than block, ideal for tall or high-load walls. Requires forming and curing time.
Austin Limestone Wall ReplacementStarting at $45/sq ftLocal limestone sourced and installed. Premium aesthetic, excellent durability west of MoPac. Includes demolition, drainage, and stone placement.
Complex or Large-Scale ReplacementOn estimateWalls over 6 feet tall, multiple tiers, engineered drawings required, or difficult site access. Requires on-site assessment before pricing.
Permit and Engineering (if required)$500 to $2,000Varies by jurisdiction and wall height. Austin and Round Rock thresholds differ. We coordinate with building department and include in final invoice.
Free EstimateNo chargeSite visit, measurements, material recommendations, and detailed written quote. Response within 24 hours. Call (737) 204-6261 to schedule.

Our Rates for Leaning & Collapsed Wall Repair in Austin

Service / CriteriaIndicative RateDetails
Tieback Anchor StabilizationStarting at $2,500Two anchors on a 10-foot wall with drainage repair and backfill; price increases with wall height and anchor depth
Drainage Repair and BackfillStarting at $1,800French drain installation, perforated pipe, and gravel backfill for a 20-foot run; clay lots and wet sites cost more
Partial Rebuild (Upper Courses)Starting at $5,500Removal and reconstruction of top 3 to 6 feet of wall; concrete block is less expensive than stone or timber
Full Wall ReplacementStarting at $10,000Complete removal, new footing, engineered drainage, and reconstruction; material and height drive final cost significantly
Structural Inspection and EstimateFreeSite visit, footing and soil assessment, written repair recommendations, and cost estimate within 24 hours of call
Travel and MobilizationIncludedNo travel charge for Austin, Round Rock, Cedar Park, Georgetown, and surrounding service areas within 20 miles

Indicative rates, actual cost varies with project size, materials, and site access. Free personalized estimate within 24h.

See full pricing guide →

Retaining Wall Contractor in Austin, TX

Austin Retaining Wall is the trusted local contractor for homeowners searching for retaining wall services near me in Austin, Round Rock, Cedar Park, Georgetown, and Pflugerville. Whether you need a new wall built on a sloped lot, urgent repair of a failing structure, or complete replacement of an aging system, our network of licensed, insured local contractors brings decades of hands-on experience to every project. We understand the unique challenges that Central Texas soil and climate pose to retaining walls, and we build solutions that hold.

From the rocky hillside lots west of MoPac to the expansive clay soils of the Blackland Prairie east of I-35, Austin's diverse terrain demands walls that are engineered and built right. The single biggest cause of wall failure in this region is saturated backfill and poor drainage. When clogged or missing weep holes and French drains allow water to build up behind a wall, hydrostatic pressure mounts, clay soil expands, and even a well-built structure can lean, crack, or collapse. Austin Retaining Wall diagnoses and repairs these failures before they threaten your home, driveway, or yard. Contact us for a free estimate and let us show you the difference proper drainage and expert repair can make.

Retaining Wall Repair & Failure Diagnosis in Austin

Retaining wall repair is the highest-priority service we provide, because a failing wall is a safety and property risk that worsens by the week. The most common signs of trouble are a wall that leans or bows outward, horizontal cracks running across block or concrete, bulging sections, or visible separation between the wall and the soil behind it. Each of these signals that the wall is losing its battle against the forces pushing against it. In Austin, the culprit is almost always hydrostatic pressure caused by saturated backfill. When drainage fails, water pools behind the wall, the pressure mounts, and the structure is forced to bend or fail. This is especially severe in clay-heavy soils east of I-35, where expansive clay swells dramatically after heavy rain, multiplying the load on the wall.

A wall that is leaning today may be leaning much further tomorrow, and a small crack can become a full collapse after the next heavy downpour. Flash Flood Alley storms and the hard, bright Central Texas sun create a cycle of saturation and drying that accelerates failure. Undersized footings, poor compaction during original installation, and clogged or missing drainage all compound the problem. The longer you wait, the more expensive and invasive the repair becomes. Leaning and collapsed wall repair often requires tieback anchors, geogrid reinforcement, or complete reconstruction. If you notice your wall moving, cracking, or bulging, call (737) 204-6261 right away. We will assess the damage, identify the root cause, and recommend the most cost-effective fix.

Retaining wall repair is our specialty. We excavate behind the wall to expose the footing and backfill, install or restore proper drainage with gravel and filter fabric, and reinforce the wall with geogrid or tieback anchors if needed. In many cases, we can avoid full replacement by fixing the drainage and stabilizing the structure. Our goal is to stop the failure in its tracks and give you a wall that will hold for decades to come.

Retaining Wall Materials We Build With in Austin

We build retaining walls in the materials that best suit your site, budget, and aesthetic goals. Segmental retaining walls (SRW) using brands like Allan Block, Versa-Lok, and Keystone are popular in newer Austin subdivisions because they are modular, durable, and allow for easy installation of geogrid reinforcement between courses. Block and segmental retaining walls are ideal for walls up to 12 feet or taller when properly engineered. Poured concrete and reinforced CMU walls offer a monolithic, long-lasting option suited to driveways and structural loads. For hillside lots in Northwest Hills and Westlake, boulder and natural stone walls blend beautifully with the Edwards limestone bedrock and provide excellent drainage. Timber retaining walls using pressure-treated lumber are still common, though wood typically lasts 15 to 20 years in Austin's climate before rot sets in. Regardless of material, every wall we build includes proper drainage: gravel backfill, filter fabric, weep holes, and often a French drain system to prevent the hydrostatic pressure that causes failure.

How Much Does a Retaining Wall Cost in Austin?

Retaining wall pricing in Austin is typically quoted per square foot of wall face, and the final cost depends on several factors: the material you choose, the height of the wall, the complexity of drainage and excavation, site access, and whether engineered drawings are required by your local building department. A simple retaining wall installation in segmental block or timber may fall into one range, while a tall poured concrete wall with tieback anchors and a full drainage system will be higher. Repair work is often less expensive than replacement if the wall can be stabilized and the drainage restored, but pricing always depends on site conditions. Visit our pricing page for typical ranges, and request a free estimate so we can evaluate your specific lot, soil, and wall and give you an accurate quote.

Do You Need a Permit for a Retaining Wall in Austin?

In most jurisdictions in the Austin area, a permit is required for retaining walls, though the specific thresholds and requirements vary by city. Commonly, walls over about four feet in height (measured from the footing) require a permit, and engineered drawings are often mandatory for walls taller than that or for any wall supporting a surcharge load such as a driveway, deck, or structure. Some cities also enforce setback and property-line rules that affect wall placement. Because requirements differ significantly between Austin, Round Rock, Cedar Park, and other surrounding municipalities, it is essential to verify the rules for your specific address before you begin. Our contractors are familiar with local code, but the final responsibility rests with you and the building department. Requirements vary, so always verify with the Austin building or planning department, or the relevant local authority in your jurisdiction, before starting your project.

Ready to get started? Austin Retaining Wall serves in Austin and surrounding areas. Get your free, no-obligation estimate today.

Get a Free Estimate
Free Quote

Get Your Free Quote

Retaining Wall in Austin · Response within 24h · No commitment · ☎ (737) 204-6261

Your Free Quote Request

Confidential · Response within 24h

✅ Free personalized estimate ⚡ Response within 24h 🛡️ Licensed & Insured 📍 On-site visits included in Austin ✅ No hidden fees 🕐 Available Mon-Sun 7am-7pm
Frequently asked questions

Your questions about our services in Austin

How much does retaining wall installation cost in Austin?
Retaining wall costs in Austin vary based on wall height, material type, length, and site conditions. Austin Retaining Wall offers free estimates so you can get an accurate price for your specific project. Contact us at (737) 204-6261 to schedule your complimentary consultation.
Do you offer free estimates for retaining wall projects in Austin?
Yes, Austin Retaining Wall provides free, no-obligation estimates for all retaining wall projects throughout Austin. Our team will assess your site, discuss material options, and provide a detailed quote at no cost.
How quickly can you respond to emergency retaining wall damage in Austin?
Austin Retaining Wall prioritizes emergency calls and aims to respond promptly to collapsed or severely damaged walls. Contact us at (737) 204-6261 to report an emergency, and we will work to schedule an urgent inspection and repair.
What areas of Austin do you service?
Austin Retaining Wall serves the greater Austin area for retaining wall installation, repair, and replacement. Whether you're in central Austin or surrounding neighborhoods, call (737) 204-6261 to confirm service availability for your location.
How do I find a reliable retaining wall contractor near me in Austin?
Look for a contractor that is licensed, insured, and has experience with multiple wall types (concrete, block, stone, timber). Austin Retaining Wall meets these standards and offers free estimates, making it easy to evaluate our expertise and get a fair price for your project.
Are you licensed and insured for retaining wall work in Austin?
This coverage ensures professional workmanship and liability protection for your retaining wall project.
Why is drainage so important for retaining walls in Austin?
Proper drainage prevents water buildup behind the wall, which can cause structural failure, leaning, and collapse. Austin's clay soils and seasonal rainfall make drainage critical, and Austin Retaining Wall designs and installs drainage systems to ensure long-term wall stability and performance.
What causes retaining walls to lean or collapse in Austin?
Poor drainage, inadequate compaction, soil movement, and age are common causes of leaning or collapsed walls in Austin. Austin Retaining Wall specializes in diagnosing these issues and providing repair solutions, from drainage improvements to complete wall replacement when necessary.