Retaining Walls, Hillside
Stabilization & StructuralStructural DrainageDrainage

Engineered hardscaping, advanced slope protection, and comprehensive water management tailored for Southern California properties.

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Southern California’s unique topography requires more than just standard hardscaping—it demands deep structural expertise, strict engineering compliance, and flawless water management. At MDM General Contractors, we specialize in high-stakes hillside construction, retaining wall installation and replacement, and comprehensive drainage systems designed to protect your home’s foundation and elevate your land’s value.

Core Capabilities

Retaining Wall Construction

We design and construct high-strength CMU block, gravity, and reinforced retaining walls tailored to support heavy soil loads and stabilize steep terrain.

Failing Wall Replacement

Safe demolition, slope shoring, and complete replacement of leaning, cracked, or aging retaining walls with modern, code-compliant structures.

Subsurface Drainage Systems

Installation of heavy-duty French drains, gravel backfill, channel drains, and weep holes to relieve hydrostatic water pressure behind structures.

Below-Grade Waterproofing

Application of commercial-grade elastomeric membranes and damp-proofing barriers to protect footings and prevent subterranean moisture intrusion.

Engineered Plan Execution

Seamless execution of structural and geotechnical plans, ensuring strict compliance with engineering calculations, rebar specs, and soil reports.

Permits & City Compliance

End-to-end management of municipal grading permits, city structural inspections, and Southern California building code requirements.

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Engineered Structural Projects

View our structural hardscaping and hillside engineering in action, from robust retaining wall builds to complex drainage and slope stabilization solutions across Southern California.

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Building safe, enduring landscapes requires more than standard hardscaping—it demands precise structural engineering and advanced water management.

Why Choose MDM General Contractors

01.

Engineered Precision

We build directly from structural calculations, ensuring complete accuracy from footings to top caps.

02.

Advanced Drainage Integration

Every wall and hillside project is backed by comprehensive water-mitigation systems to prevent failure.

03.

Turnkey Permitting & Compliance

We handle city structural plans, HOA approvals, and municipal grading inspections from start to finish.

04.

Decades of Structural Experience

Over 50 years of combined management experience handling complex structural hardscaping and hillside grading.

Our Fire Rebuild Process

We guide you through every phase of your home’s recovery with compassion, expertise, and transparent communication, ensuring a safe and resilient rebuild from the ground up.

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Consultation & Assessment

We meet at your site to discuss your goals and assess the scope of the rebuild, providing a clear path forward and a free initial estimate.

Architecture & Engineering

Our team designs new plans that respect your original home’s spirit while integrating modern fire-safe codes and high-end design elements.

Planning & Permits

We handle all local city or county permits, structural drawings, and approvals required specifically for rebuilding in fire-prone zones.

Debris & Site Preparation

Professional management of debris removal and structural repairs ensures the site is clean, safe, and ready for its new foundation and framing.

Full Reconstruction

Our skilled craftsmen handle every phase of construction with precision, from non-combustible siding and roofing to interior luxury finishes.

Final Inspection & Handover

We conduct a thorough final walkthrough and pass all city inspections to ensure your new home is safe, beautiful, and ready for you to move back in.

FAQs

Do I need an engineered plan for a retaining wall?

In most Southern California municipalities (including Los Angeles and surrounding areas), retaining walls over a certain height (typically 3 to 4 feet) or those supporting a surcharge load require engineered structural plans and city grading permits. We manage the entire engineering and permitting workflow for you.

How do you prevent retaining walls from failing due to water buildup?

Hydrostatic pressure is neutralized through proper subsurface drainage design, including clean crushed gravel backfill, perforated drain pipes (French drains), filter fabric, and wall weep holes to allow trapped moisture to escape safely.

Can you replace an existing failing or leaning retaining wall?

Yes. We specialize in structural wall replacements. We safely shore up the slope, demolish the compromised wall, upgrade the foundation and drainage infrastructure, and construct a brand-new, code-compliant wall designed for long-term durability

Ready to Secure and Transform Your Property?

Protect your landscape and foundation with industry-leading structural hardscaping. Contact MDM General Contractors today for a free consultation and project evaluation.
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