Business Details
11 Years
experience
Expert Foundation Drilling & Shoring Services
Founded in 2015, McMahon Construction has established itself as a trusted provider of foundation drilling and shoring solutions across Southern California. Our expertise spans the installation of caissons, soldier pile walls, sheet pile, tiebacks, and retaining/soil nail walls, with capabilities in both temporary and permanent shoring systems. As a family-owned and operated business, we prioritize hands-on oversight for every project, ensuring rigorous quality control and exceptional performance.Certified as an SBE and WBE Corporation by the Department of Industrial Relations, we serve residential, commercial, and municipal clients with tailored drilling and installation services. Our commitment to innovation and reliability positions us as a preferred partner for complex foundation challenges in diverse construction environments.
Services
Anchor Systems
Beam and Plate
Sheet Pile
Underpinning
Pile Driving
Cast In Drilled Holes
Custom Drilling
Beam and Lagging
Details
- Year established: 2015
Highlights and features
- Family-owned with hands-on quality control for every project
- SBE/WBE-certified by the Department of Industrial Relations
- Specialize in complex foundation solutions for all project scales
- Serve residential, commercial, and municipal clients across Southern California
- Offer full-service drilling and installation capabilities
Associations and certifications
- SBE Corporation
- WBE Corporation
- Department of Industrial Relations
Services
Anchor Systems
Our anchor systems stabilize retaining walls using high-strength steel tiebacks secured to stable ground structures. This method ensures long-term slope stability for both new construction and remedial projects. Ideal for challenging soil conditions requiring precision engineering.
Beam and Lagging
Beam and lagging systems combine vertical steel piles with horizontal wood or steel panels to retain soil during excavations. This technique provides adaptable support for deep foundations in urban environments with space constraints or variable ground conditions.
Sheet Pile
Sheet pile installation creates continuous steel barriers for retaining walls and cofferdams. Using vibratory hammers or crane-mounted drivers, we deliver durable solutions for waterfront structures, basement construction, and earth retention projects requiring water-resistant barriers.
Cast In Drilled Holes
Our CIDH piles provide deep foundation support through large-diameter drilled shafts. This method accommodates dense or water-logged soils, offering structural stability for commercial buildings, bridges, and infrastructure projects needing load transfer to competent bearing strata.
Underpinning
We reinforce existing foundations using beam-and-base or mini-piled underpinning techniques. These methods stabilize structures undergoing settlement or requiring capacity upgrades for renovations, ensuring structural integrity in challenging ground conditions.
People
Brian McMahon
Chief Estimator
Brian McMahon leads cost estimation and project planning, leveraging extensive field experience to deliver accurate budgets while maintaining engineering integrity for complex shoring solutions.
Ashley McMahon
President
As President, Ashley McMahon oversees operations and client relations, combining strategic leadership with hands-on construction expertise to ensure quality execution across all foundation drilling projects.
Questions
What foundation services does McMahon Engineering offer?
We provide caissons, soldier pile walls, sheet pile, tiebacks, soil nail walls, underpinning, and custom drilling solutions for residential, commercial, and municipal projects.
Are you certified for public works projects?
Yes, we hold SBE and WBE certifications through the Department of Industrial Relations, qualifying for state and municipal construction contracts.
What areas do you service?
Our primary service area covers Southern California, including Los Angeles, San Diego, Orange County, and surrounding regions for foundation drilling and shoring needs.
How does your underpinning process work?
We use beam-and-base or mini-piled methods to strengthen existing foundations, ensuring structural stability during renovations or settlement remediation with minimal disruption.
Can you handle emergency foundation repairs?
While we focus on planned projects, our team can assess urgent shoring needs and develop rapid-response solutions for critical foundation stabilization requirements.
