Retaining Walls That Actually Hold
Failed walls almost always share one cause: water with nowhere to go. We build every wall with clean-stone backfill, a perforated drain line, and geogrid reinforcement where the height calls for it.
- Starting at
- $45
- per face square foot
- Timeline
- Most residential walls are complete in 3–8 working days.
- Warranty
- 10-year structural workmanship warranty.
Included on every retaining walls project
- Grade and drainage assessment of the whole slope
- Compacted, leveling-pad base course below grade
- Clean #57 stone backfill behind every course
- Perforated drain tile daylighted to a safe outlet
- Geogrid soil reinforcement on walls over 4 feet
- Stamped engineering drawings when required by code
Transparent pricing
What this actually costs
Segmental block walls run $45–$75 per face square foot; natural stone runs higher.
| Material | Why homeowners pick it | Installed |
|---|---|---|
| Segmental block (Belgard, Versa-Lok) Engineered interlocking units with a built-in setback for stability. | Engineered interlocking units with a built-in setback for stability. | $45 – $65 / sq ft |
| Natural stone Hand-fit fieldstone or boulder walls for a landscape-integrated look. | Hand-fit fieldstone or boulder walls for a landscape-integrated look. | $65 – $95 / sq ft |
| Poured concrete with veneer Maximum structural capacity for tall or heavily loaded walls. | Maximum structural capacity for tall or heavily loaded walls. | $70 – $110 / sq ft |
Ranges reflect typical Montgomery and Howard County residential projects and include materials, labor, permit filing and haul-away. Steep grade, rock, limited access or custom detailing can move the number. Your written estimate is a fixed price, not a range.
FAQ
Retaining Walls questions we get weekly
When does a retaining wall need an engineer in Maryland?
Montgomery County generally requires engineered drawings and a permit for walls over 4 feet from the bottom of the footing, or for any wall carrying a surcharge such as a driveway. We coordinate the engineering.
Why is my existing wall leaning?
Bulging or leaning nearly always signals trapped water or a missing base. Repointing the face will not fix it — the wall needs to be rebuilt with proper backfill and drainage.
Next step
Get a fixed price for your retaining walls project
Tell us roughly what you are thinking. We will confirm scope on site and put a real number in writing.
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Get a written, itemized estimate — free.
No sales pressure and no vague line items. We walk your property, measure, and give you a fixed price in writing.
We reply to every estimate request within one business day. Permits and HOA paperwork included at no extra charge.